Merge with git://www.denx.de/git/u-boot.git

1 files changed, 5436 insertions, 0 deletions

diff --git a/drivers/bios_emulator/x86emu/ops.c b/drivers/bios_emulator/x86emu/ops.c
new file mode 100644
index 000000000..d334fb5b1
--- /dev/null
+++ b/drivers/bios_emulator/x86emu/ops.c
@@ -0,0 +1,5436 @@
+/****************************************************************************
+*			Realmode X86 Emulator Library
+*
+*  Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+*  Jason Jin <Jason.jin@freescale.com>
+*
+*		Copyright (C) 1991-2004 SciTech Software, Inc.
+*				     Copyright (C) David Mosberger-Tang
+*					   Copyright (C) 1999 Egbert Eich
+*
+*  ========================================================================
+*
+*  Permission to use, copy, modify, distribute, and sell this software and
+*  its documentation for any purpose is hereby granted without fee,
+*  provided that the above copyright notice appear in all copies and that
+*  both that copyright notice and this permission notice appear in
+*  supporting documentation, and that the name of the authors not be used
+*  in advertising or publicity pertaining to distribution of the software
+*  without specific, written prior permission.	The authors makes no
+*  representations about the suitability of this software for any purpose.
+*  It is provided "as is" without express or implied warranty.
+*
+*  THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+*  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+*  EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+*  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+*  USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+*  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+*  PERFORMANCE OF THIS SOFTWARE.
+*
+*  ========================================================================
+*
+* Language:		ANSI C
+* Environment:	Any
+* Developer:	Kendall Bennett
+*
+* Description:	This file includes subroutines to implement the decoding
+*		and emulation of all the x86 processor instructions.
+*
+* There are approximately 250 subroutines in here, which correspond
+* to the 256 byte-"opcodes" found on the 8086.	The table which
+* dispatches this is found in the files optab.[ch].
+*
+* Each opcode proc has a comment preceeding it which gives it's table
+* address.  Several opcodes are missing (undefined) in the table.
+*
+* Each proc includes information for decoding (DECODE_PRINTF and
+* DECODE_PRINTF2), debugging (TRACE_REGS, SINGLE_STEP), and misc
+* functions (START_OF_INSTR, END_OF_INSTR).
+*
+* Many of the procedures are *VERY* similar in coding.	This has
+* allowed for a very large amount of code to be generated in a fairly
+* short amount of time (i.e. cut, paste, and modify).  The result is
+* that much of the code below could have been folded into subroutines
+* for a large reduction in size of this file.  The downside would be
+* that there would be a penalty in execution speed.  The file could
+* also have been *MUCH* larger by inlining certain functions which
+* were called.	This could have resulted even faster execution.	 The
+* prime directive I used to decide whether to inline the code or to
+* modularize it, was basically: 1) no unnecessary subroutine calls,
+* 2) no routines more than about 200 lines in size, and 3) modularize
+* any code that I might not get right the first time.  The fetch_*
+* subroutines fall into the latter category.  The The decode_* fall
+* into the second category.  The coding of the "switch(mod){ .... }"
+* in many of the subroutines below falls into the first category.
+* Especially, the coding of {add,and,or,sub,...}_{byte,word}
+* subroutines are an especially glaring case of the third guideline.
+* Since so much of the code is cloned from other modules (compare
+* opcode #00 to opcode #01), making the basic operations subroutine
+* calls is especially important; otherwise mistakes in coding an
+* "add" would represent a nightmare in maintenance.
+*
+* Jason ported this file to u-boot. place all the function pointer in
+* the got2 sector. Removed some opcode.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+
+#if defined(CONFIG_BIOSEMU)
+
+/*----------------------------- Implementation ----------------------------*/
+
+/* constant arrays to do several instructions in just one function */
+
+#ifdef DEBUG
+static char *x86emu_GenOpName[8] = {
+    "ADD", "OR", "ADC", "SBB", "AND", "SUB", "XOR", "CMP"};
+#endif
+
+/* used by several opcodes  */
+static u8 (*genop_byte_operation[])(u8 d, u8 s) __attribute__ ((section(".got2"))) =
+{
+    add_byte,		/* 00 */
+    or_byte,		/* 01 */
+    adc_byte,		/* 02 */
+    sbb_byte,		/* 03 */
+    and_byte,		/* 04 */
+    sub_byte,		/* 05 */
+    xor_byte,		/* 06 */
+    cmp_byte,		/* 07 */
+};
+
+static u16 (*genop_word_operation[])(u16 d, u16 s) __attribute__ ((section(".got2"))) =
+{
+    add_word,		/*00 */
+    or_word,		/*01 */
+    adc_word,		/*02 */
+    sbb_word,		/*03 */
+    and_word,		/*04 */
+    sub_word,		/*05 */
+    xor_word,		/*06 */
+    cmp_word,		/*07 */
+};
+
+static u32 (*genop_long_operation[])(u32 d, u32 s) __attribute__ ((section(".got2"))) =
+{
+    add_long,		/*00 */
+    or_long,		/*01 */
+    adc_long,		/*02 */
+    sbb_long,		/*03 */
+    and_long,		/*04 */
+    sub_long,		/*05 */
+    xor_long,		/*06 */
+    cmp_long,		/*07 */
+};
+
+/* used by opcodes 80, c0, d0, and d2. */
+static u8(*opcD0_byte_operation[])(u8 d, u8 s) __attribute__ ((section(".got2"))) =
+{
+    rol_byte,
+    ror_byte,
+    rcl_byte,
+    rcr_byte,
+    shl_byte,
+    shr_byte,
+    shl_byte,		/* sal_byte === shl_byte  by definition */
+    sar_byte,
+};
+
+/* used by opcodes c1, d1, and d3. */
+static u16(*opcD1_word_operation[])(u16 s, u8 d) __attribute__ ((section(".got2"))) =
+{
+    rol_word,
+    ror_word,
+    rcl_word,
+    rcr_word,
+    shl_word,
+    shr_word,
+    shl_word,		/* sal_byte === shl_byte  by definition */
+    sar_word,
+};
+
+/* used by opcodes c1, d1, and d3. */
+static u32 (*opcD1_long_operation[])(u32 s, u8 d) __attribute__ ((section(".got2"))) =
+{
+    rol_long,
+    ror_long,
+    rcl_long,
+    rcr_long,
+    shl_long,
+    shr_long,
+    shl_long,		/* sal_byte === shl_byte  by definition */
+    sar_long,
+};
+
+#ifdef DEBUG
+
+static char *opF6_names[8] =
+  { "TEST\t", "", "NOT\t", "NEG\t", "MUL\t", "IMUL\t", "DIV\t", "IDIV\t" };
+
+#endif
+
+/****************************************************************************
+PARAMETERS:
+op1 - Instruction op code
+
+REMARKS:
+Handles illegal opcodes.
+****************************************************************************/
+void x86emuOp_illegal_op(
+    u8 op1)
+{
+    START_OF_INSTR();
+    if (M.x86.R_SP != 0) {
+	DECODE_PRINTF("ILLEGAL X86 OPCODE\n");
+	TRACE_REGS();
+	DB( printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n",
+	    M.x86.R_CS, M.x86.R_IP-1,op1));
+	HALT_SYS();
+	}
+    else {
+	/* If we get here, it means the stack pointer is back to zero
+	 * so we are just returning from an emulator service call
+	 * so therte is no need to display an error message. We trap
+	 * the emulator with an 0xF1 opcode to finish the service
+	 * call.
+	 */
+	X86EMU_halt_sys();
+	}
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38
+****************************************************************************/
+void x86emuOp_genop_byte_RM_R(u8 op1)
+{
+    int mod, rl, rh;
+    uint destoffset;
+    u8 *destreg, *srcreg;
+    u8 destval;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF(x86emu_GenOpName[op1]);
+    DECODE_PRINTF("\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if(mod<3)
+	{ destoffset = decode_rmXX_address(mod,rl);
+	DECODE_PRINTF(",");
+	destval = fetch_data_byte(destoffset);
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	destval = genop_byte_operation[op1](destval, *srcreg);
+	store_data_byte(destoffset, destval);
+	}
+    else
+	{			/* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = genop_byte_operation[op1](*destreg, *srcreg);
+	}
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x01, 0x09, 0x11, 0x19, 0x21, 0x29, 0x31, 0x39
+****************************************************************************/
+void x86emuOp_genop_word_RM_R(u8 op1)
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF(x86emu_GenOpName[op1]);
+    DECODE_PRINTF("\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+
+    if(mod<3) {
+	destoffset = decode_rmXX_address(mod,rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+	    u32 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_long(destoffset);
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = genop_long_operation[op1](destval, *srcreg);
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 destval;
+	    u16 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_word(destoffset);
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = genop_word_operation[op1](destval, *srcreg);
+	    store_data_word(destoffset, destval);
+	}
+    } else {			/* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = genop_long_operation[op1](*destreg, *srcreg);
+	} else {
+	    u16 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = genop_word_operation[op1](*destreg, *srcreg);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x02, 0x0a, 0x12, 0x1a, 0x22, 0x2a, 0x32, 0x3a
+****************************************************************************/
+void x86emuOp_genop_byte_R_RM(u8 op1)
+{
+    int mod, rl, rh;
+    u8 *destreg, *srcreg;
+    uint srcoffset;
+    u8 srcval;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF(x86emu_GenOpName[op1]);
+    DECODE_PRINTF("\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcoffset = decode_rmXX_address(mod,rl);
+	srcval = fetch_data_byte(srcoffset);
+    } else {	 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rl);
+	srcval = *srcreg;
+    }
+    DECODE_PRINTF("\n");
+    TRACE_AND_STEP();
+    *destreg = genop_byte_operation[op1](*destreg, srcval);
+
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x03, 0x0b, 0x13, 0x1b, 0x23, 0x2b, 0x33, 0x3b
+****************************************************************************/
+void x86emuOp_genop_word_R_RM(u8 op1)
+{
+    int mod, rl, rh;
+    uint srcoffset;
+    u32 *destreg32, srcval;
+    u16 *destreg;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF(x86emu_GenOpName[op1]);
+    DECODE_PRINTF("\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	srcoffset = decode_rmXX_address(mod,rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    destreg32 = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_long(srcoffset);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg32 = genop_long_operation[op1](*destreg32, srcval);
+	} else {
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_word(srcoffset);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = genop_word_operation[op1](*destreg, srcval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *srcreg;
+	    destreg32 = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg32 = genop_long_operation[op1](*destreg32, *srcreg);
+	} else {
+	    u16 *srcreg;
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = genop_word_operation[op1](*destreg, *srcreg);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x04, 0x0c, 0x14, 0x1c, 0x24, 0x2c, 0x34, 0x3c
+****************************************************************************/
+void x86emuOp_genop_byte_AL_IMM(u8 op1)
+{
+    u8 srcval;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF(x86emu_GenOpName[op1]);
+    DECODE_PRINTF("\tAL,");
+    srcval = fetch_byte_imm();
+    DECODE_PRINTF2("%x\n", srcval);
+    TRACE_AND_STEP();
+    M.x86.R_AL = genop_byte_operation[op1](M.x86.R_AL, srcval);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcodes 0x05, 0x0d, 0x15, 0x1d, 0x25, 0x2d, 0x35, 0x3d
+****************************************************************************/
+void x86emuOp_genop_word_AX_IMM(u8 op1)
+{
+    u32 srcval;
+
+    op1 = (op1 >> 3) & 0x7;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF(x86emu_GenOpName[op1]);
+	DECODE_PRINTF("\tEAX,");
+	srcval = fetch_long_imm();
+    } else {
+	DECODE_PRINTF(x86emu_GenOpName[op1]);
+	DECODE_PRINTF("\tAX,");
+	srcval = fetch_word_imm();
+    }
+    DECODE_PRINTF2("%x\n", srcval);
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EAX = genop_long_operation[op1](M.x86.R_EAX, srcval);
+    } else {
+	M.x86.R_AX = genop_word_operation[op1](M.x86.R_AX, (u16)srcval);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x06
+****************************************************************************/
+void x86emuOp_push_ES(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("PUSH\tES\n");
+    TRACE_AND_STEP();
+    push_word(M.x86.R_ES);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x07
+****************************************************************************/
+void x86emuOp_pop_ES(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("POP\tES\n");
+    TRACE_AND_STEP();
+    M.x86.R_ES = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0e
+****************************************************************************/
+void x86emuOp_push_CS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("PUSH\tCS\n");
+    TRACE_AND_STEP();
+    push_word(M.x86.R_CS);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f. Escape for two-byte opcode (286 or better)
+****************************************************************************/
+void x86emuOp_two_byte(u8 X86EMU_UNUSED(op1))
+{
+    u8 op2 = (*sys_rdb)(((u32)M.x86.R_CS << 4) + (M.x86.R_IP++));
+    INC_DECODED_INST_LEN(1);
+    (*x86emu_optab2[op2])(op2);
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x16
+****************************************************************************/
+void x86emuOp_push_SS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("PUSH\tSS\n");
+    TRACE_AND_STEP();
+    push_word(M.x86.R_SS);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x17
+****************************************************************************/
+void x86emuOp_pop_SS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("POP\tSS\n");
+    TRACE_AND_STEP();
+    M.x86.R_SS = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1e
+****************************************************************************/
+void x86emuOp_push_DS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("PUSH\tDS\n");
+    TRACE_AND_STEP();
+    push_word(M.x86.R_DS);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1f
+****************************************************************************/
+void x86emuOp_pop_DS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("POP\tDS\n");
+    TRACE_AND_STEP();
+    M.x86.R_DS = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x26
+****************************************************************************/
+void x86emuOp_segovr_ES(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("ES:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_ES;
+    /*
+     * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+     * opcode subroutines we do not want to do this.
+     */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x27
+****************************************************************************/
+void x86emuOp_daa(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("DAA\n");
+    TRACE_AND_STEP();
+    M.x86.R_AL = daa_byte(M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2e
+****************************************************************************/
+void x86emuOp_segovr_CS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("CS:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_CS;
+    /* note no DECODE_CLEAR_SEGOVR here. */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2f
+****************************************************************************/
+void x86emuOp_das(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("DAS\n");
+    TRACE_AND_STEP();
+    M.x86.R_AL = das_byte(M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x36
+****************************************************************************/
+void x86emuOp_segovr_SS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("SS:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_SS;
+    /* no DECODE_CLEAR_SEGOVR ! */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x37
+****************************************************************************/
+void x86emuOp_aaa(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("AAA\n");
+    TRACE_AND_STEP();
+    M.x86.R_AX = aaa_word(M.x86.R_AX);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3e
+****************************************************************************/
+void x86emuOp_segovr_DS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("DS:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_DS;
+    /* NO DECODE_CLEAR_SEGOVR! */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3f
+****************************************************************************/
+void x86emuOp_aas(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("AAS\n");
+    TRACE_AND_STEP();
+    M.x86.R_AX = aas_word(M.x86.R_AX);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x40 - 0x47
+****************************************************************************/
+void x86emuOp_inc_register(u8 op1)
+{
+    START_OF_INSTR();
+    op1 &= 0x7;
+    DECODE_PRINTF("INC\t");
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg;
+	reg = DECODE_RM_LONG_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = inc_long(*reg);
+    } else {
+	u16 *reg;
+	reg = DECODE_RM_WORD_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = inc_word(*reg);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x48 - 0x4F
+****************************************************************************/
+void x86emuOp_dec_register(u8 op1)
+{
+    START_OF_INSTR();
+    op1 &= 0x7;
+    DECODE_PRINTF("DEC\t");
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg;
+	reg = DECODE_RM_LONG_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = dec_long(*reg);
+    } else {
+	u16 *reg;
+	reg = DECODE_RM_WORD_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = dec_word(*reg);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x50 - 0x57
+****************************************************************************/
+void x86emuOp_push_register(u8 op1)
+{
+    START_OF_INSTR();
+    op1 &= 0x7;
+    DECODE_PRINTF("PUSH\t");
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg;
+	reg = DECODE_RM_LONG_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	push_long(*reg);
+    } else {
+	u16 *reg;
+	reg = DECODE_RM_WORD_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	push_word(*reg);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x58 - 0x5F
+****************************************************************************/
+void x86emuOp_pop_register(u8 op1)
+{
+    START_OF_INSTR();
+    op1 &= 0x7;
+    DECODE_PRINTF("POP\t");
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg;
+	reg = DECODE_RM_LONG_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = pop_long();
+    } else {
+	u16 *reg;
+	reg = DECODE_RM_WORD_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*reg = pop_word();
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x60
+****************************************************************************/
+void x86emuOp_push_all(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("PUSHAD\n");
+    } else {
+	DECODE_PRINTF("PUSHA\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 old_sp = M.x86.R_ESP;
+
+	push_long(M.x86.R_EAX);
+	push_long(M.x86.R_ECX);
+	push_long(M.x86.R_EDX);
+	push_long(M.x86.R_EBX);
+	push_long(old_sp);
+	push_long(M.x86.R_EBP);
+	push_long(M.x86.R_ESI);
+	push_long(M.x86.R_EDI);
+    } else {
+	u16 old_sp = M.x86.R_SP;
+
+	push_word(M.x86.R_AX);
+	push_word(M.x86.R_CX);
+	push_word(M.x86.R_DX);
+	push_word(M.x86.R_BX);
+	push_word(old_sp);
+	push_word(M.x86.R_BP);
+	push_word(M.x86.R_SI);
+	push_word(M.x86.R_DI);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x61
+****************************************************************************/
+void x86emuOp_pop_all(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("POPAD\n");
+    } else {
+	DECODE_PRINTF("POPA\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EDI = pop_long();
+	M.x86.R_ESI = pop_long();
+	M.x86.R_EBP = pop_long();
+	M.x86.R_ESP += 4;	       /* skip ESP */
+	M.x86.R_EBX = pop_long();
+	M.x86.R_EDX = pop_long();
+	M.x86.R_ECX = pop_long();
+	M.x86.R_EAX = pop_long();
+    } else {
+	M.x86.R_DI = pop_word();
+	M.x86.R_SI = pop_word();
+	M.x86.R_BP = pop_word();
+	M.x86.R_SP += 2;	       /* skip SP */
+	M.x86.R_BX = pop_word();
+	M.x86.R_DX = pop_word();
+	M.x86.R_CX = pop_word();
+	M.x86.R_AX = pop_word();
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/*opcode 0x62	ILLEGAL OP, calls x86emuOp_illegal_op() */
+/*opcode 0x63	ILLEGAL OP, calls x86emuOp_illegal_op() */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x64
+****************************************************************************/
+void x86emuOp_segovr_FS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("FS:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_FS;
+    /*
+     * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+     * opcode subroutines we do not want to do this.
+     */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x65
+****************************************************************************/
+void x86emuOp_segovr_GS(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("GS:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_SEGOVR_GS;
+    /*
+     * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+     * opcode subroutines we do not want to do this.
+     */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x66 - prefix for 32-bit register
+****************************************************************************/
+void x86emuOp_prefix_data(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("DATA:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_PREFIX_DATA;
+    /* note no DECODE_CLEAR_SEGOVR here. */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x67 - prefix for 32-bit address
+****************************************************************************/
+void x86emuOp_prefix_addr(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("ADDR:\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_PREFIX_ADDR;
+    /* note no DECODE_CLEAR_SEGOVR here. */
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x68
+****************************************************************************/
+void x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u32 imm;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	imm = fetch_long_imm();
+    } else {
+	imm = fetch_word_imm();
+    }
+    DECODE_PRINTF2("PUSH\t%x\n", imm);
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	push_long(imm);
+    } else {
+	push_word((u16)imm);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x69
+****************************************************************************/
+void x86emuOp_imul_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint srcoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("IMUL\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	srcoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 srcval;
+	    u32 res_lo,res_hi;
+	    s32 imm;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_long(srcoffset);
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm);
+	    if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) ||
+		(((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u32)res_lo;
+	} else {
+	    u16 *destreg;
+	    u16 srcval;
+	    u32 res;
+	    s16 imm;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_word(srcoffset);
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    res = (s16)srcval * (s16)imm;
+	    if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) ||
+		(((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u16)res;
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+	    u32 res_lo,res_hi;
+	    s32 imm;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rl);
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm);
+	    if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) ||
+		(((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u32)res_lo;
+	} else {
+	    u16 *destreg,*srcreg;
+	    u32 res;
+	    s16 imm;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rl);
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    res = (s16)*srcreg * (s16)imm;
+	    if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) ||
+		(((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u16)res;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6a
+****************************************************************************/
+void x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+    s16 imm;
+
+    START_OF_INSTR();
+    imm = (s8)fetch_byte_imm();
+    DECODE_PRINTF2("PUSH\t%d\n", imm);
+    TRACE_AND_STEP();
+    push_word(imm);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6b
+****************************************************************************/
+void x86emuOp_imul_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint srcoffset;
+    s8	imm;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("IMUL\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	srcoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 srcval;
+	    u32 res_lo,res_hi;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_long(srcoffset);
+	    imm = fetch_byte_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    imul_long_direct(&res_lo,&res_hi,(s32)srcval,(s32)imm);
+	    if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) ||
+		(((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u32)res_lo;
+	} else {
+	    u16 *destreg;
+	    u16 srcval;
+	    u32 res;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcval = fetch_data_word(srcoffset);
+	    imm = fetch_byte_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    res = (s16)srcval * (s16)imm;
+	    if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) ||
+		(((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u16)res;
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+	    u32 res_lo,res_hi;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rl);
+	    imm = fetch_byte_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    imul_long_direct(&res_lo,&res_hi,(s32)*srcreg,(s32)imm);
+	    if ((((res_lo & 0x80000000) == 0) && (res_hi == 0x00000000)) ||
+		(((res_lo & 0x80000000) != 0) && (res_hi == 0xFFFFFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u32)res_lo;
+	} else {
+	    u16 *destreg,*srcreg;
+	    u32 res;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rl);
+	    imm = fetch_byte_imm();
+	    DECODE_PRINTF2(",%d\n", (s32)imm);
+	    TRACE_AND_STEP();
+	    res = (s16)*srcreg * (s16)imm;
+	    if ((((res & 0x8000) == 0) && ((res >> 16) == 0x0000)) ||
+		(((res & 0x8000) != 0) && ((res >> 16) == 0xFFFF))) {
+		CLEAR_FLAG(F_CF);
+		CLEAR_FLAG(F_OF);
+	    } else {
+		SET_FLAG(F_CF);
+		SET_FLAG(F_OF);
+	    }
+	    *destreg = (u16)res;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6c
+****************************************************************************/
+void x86emuOp_ins_byte(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("INSB\n");
+    ins(1);
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6d
+****************************************************************************/
+void x86emuOp_ins_word(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("INSD\n");
+	ins(4);
+    } else {
+	DECODE_PRINTF("INSW\n");
+	ins(2);
+    }
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6e
+****************************************************************************/
+void x86emuOp_outs_byte(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("OUTSB\n");
+    outs(1);
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6f
+****************************************************************************/
+void x86emuOp_outs_word(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("OUTSD\n");
+	outs(4);
+    } else {
+	DECODE_PRINTF("OUTSW\n");
+	outs(2);
+    }
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x70 - 0x7F
+****************************************************************************/
+int x86emu_check_jump_condition(u8 op);
+
+void x86emuOp_jump_near_cond(u8 op1)
+{
+    s8 offset;
+    u16 target;
+    int cond;
+
+    /* jump to byte offset if overflow flag is set */
+    START_OF_INSTR();
+    cond = x86emu_check_jump_condition(op1 & 0xF);
+    offset = (s8)fetch_byte_imm();
+    target = (u16)(M.x86.R_IP + (s16)offset);
+    DECODE_PRINTF2("%x\n", target);
+    TRACE_AND_STEP();
+    if (cond)
+	M.x86.R_IP = target;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x80
+****************************************************************************/
+void x86emuOp_opc80_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 imm;
+    u8 destval;
+
+    /*
+     * Weirdo special case instruction format.	Part of the opcode
+     * held below in "RH".  Doubly nested case would result, except
+     * that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ADD\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("OR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("ADC\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("SBB\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("AND\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SUB\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("XOR\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("CMP\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	destval = fetch_data_byte(destoffset);
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	destval = (*genop_byte_operation[rh]) (destval, imm);
+	if (rh != 7)
+	    store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",");
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2("%x\n", imm);
+	TRACE_AND_STEP();
+	destval = (*genop_byte_operation[rh]) (*destreg, imm);
+	if (rh != 7)
+	    *destreg = destval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x81
+****************************************************************************/
+void x86emuOp_opc81_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    /*
+     * Weirdo special case instruction format.	Part of the opcode
+     * held below in "RH".  Doubly nested case would result, except
+     * that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ADD\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("OR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("ADC\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("SBB\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("AND\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SUB\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("XOR\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("CMP\t");
+	    break;
+	}
+    }
+#endif
+    /*
+     * Know operation, decode the mod byte to find the addressing
+     * mode.
+     */
+    if (mod < 3) {
+	DECODE_PRINTF("DWORD PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval,imm;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_long(destoffset);
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2("%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_long_operation[rh]) (destval, imm);
+	    if (rh != 7)
+		store_data_long(destoffset, destval);
+	} else {
+	    u16 destval,imm;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_word(destoffset);
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2("%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_word_operation[rh]) (destval, imm);
+	    if (rh != 7)
+		store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 destval,imm;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2("%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_long_operation[rh]) (*destreg, imm);
+	    if (rh != 7)
+		*destreg = destval;
+	} else {
+	    u16 *destreg;
+	    u16 destval,imm;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2("%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_word_operation[rh]) (*destreg, imm);
+	    if (rh != 7)
+		*destreg = destval;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x82
+****************************************************************************/
+void x86emuOp_opc82_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 imm;
+    u8 destval;
+
+    /*
+     * Weirdo special case instruction format.	Part of the opcode
+     * held below in "RH".  Doubly nested case would result, except
+     * that the decoded instruction Similar to opcode 81, except that
+     * the immediate byte is sign extended to a word length.
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ADD\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("OR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("ADC\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("SBB\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("AND\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SUB\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("XOR\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("CMP\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	destval = fetch_data_byte(destoffset);
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2(",%x\n", imm);
+	TRACE_AND_STEP();
+	destval = (*genop_byte_operation[rh]) (destval, imm);
+	if (rh != 7)
+	    store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2(",%x\n", imm);
+	TRACE_AND_STEP();
+	destval = (*genop_byte_operation[rh]) (*destreg, imm);
+	if (rh != 7)
+	    *destreg = destval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x83
+****************************************************************************/
+void x86emuOp_opc83_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    /*
+     * Weirdo special case instruction format.	Part of the opcode
+     * held below in "RH".  Doubly nested case would result, except
+     * that the decoded instruction Similar to opcode 81, except that
+     * the immediate byte is sign extended to a word length.
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+       switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ADD\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("OR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("ADC\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("SBB\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("AND\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SUB\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("XOR\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("CMP\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	DECODE_PRINTF("DWORD PTR ");
+	destoffset = decode_rmXX_address(mod,rl);
+
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval,imm;
+
+	    destval = fetch_data_long(destoffset);
+	    imm = (s8) fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_long_operation[rh]) (destval, imm);
+	    if (rh != 7)
+		store_data_long(destoffset, destval);
+	} else {
+	    u16 destval,imm;
+
+	    destval = fetch_data_word(destoffset);
+	    imm = (s8) fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_word_operation[rh]) (destval, imm);
+	    if (rh != 7)
+		store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 destval,imm;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    imm = (s8) fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_long_operation[rh]) (*destreg, imm);
+	    if (rh != 7)
+		*destreg = destval;
+	} else {
+	    u16 *destreg;
+	    u16 destval,imm;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    imm = (s8) fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    destval = (*genop_word_operation[rh]) (*destreg, imm);
+	    if (rh != 7)
+		*destreg = destval;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x84
+****************************************************************************/
+void x86emuOp_test_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg, *srcreg;
+    uint destoffset;
+    u8 destval;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("TEST\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	destval = fetch_data_byte(destoffset);
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	test_byte(destval, *srcreg);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	test_byte(*destreg, *srcreg);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x85
+****************************************************************************/
+void x86emuOp_test_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("TEST\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+	    u32 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_long(destoffset);
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    test_long(destval, *srcreg);
+	} else {
+	    u16 destval;
+	    u16 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    destval = fetch_data_word(destoffset);
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    test_word(destval, *srcreg);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    test_long(*destreg, *srcreg);
+	} else {
+	    u16 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    test_word(*destreg, *srcreg);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x86
+****************************************************************************/
+void x86emuOp_xchg_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg, *srcreg;
+    uint destoffset;
+    u8 destval;
+    u8 tmp;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("XCHG\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	destval = fetch_data_byte(destoffset);
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	tmp = *srcreg;
+	*srcreg = destval;
+	destval = tmp;
+	store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	tmp = *srcreg;
+	*srcreg = *destreg;
+	*destreg = tmp;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x87
+****************************************************************************/
+void x86emuOp_xchg_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("XCHG\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *srcreg;
+	    u32 destval,tmp;
+
+	    destval = fetch_data_long(destoffset);
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    tmp = *srcreg;
+	    *srcreg = destval;
+	    destval = tmp;
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 *srcreg;
+	    u16 destval,tmp;
+
+	    destval = fetch_data_word(destoffset);
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    tmp = *srcreg;
+	    *srcreg = destval;
+	    destval = tmp;
+	    store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+	    u32 tmp;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    tmp = *srcreg;
+	    *srcreg = *destreg;
+	    *destreg = tmp;
+	} else {
+	    u16 *destreg,*srcreg;
+	    u16 tmp;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    tmp = *srcreg;
+	    *srcreg = *destreg;
+	    *destreg = tmp;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x88
+****************************************************************************/
+void x86emuOp_mov_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg, *srcreg;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	store_data_byte(destoffset, *srcreg);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = *srcreg;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x89
+****************************************************************************/
+void x86emuOp_mov_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    store_data_long(destoffset, *srcreg);
+	} else {
+	    u16 *srcreg;
+
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    store_data_word(destoffset, *srcreg);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = *srcreg;
+	} else {
+	    u16 *destreg,*srcreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = *srcreg;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8a
+****************************************************************************/
+void x86emuOp_mov_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg, *srcreg;
+    uint srcoffset;
+    u8 srcval;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcoffset = decode_rmXX_address(mod, rl);
+	srcval = fetch_data_byte(srcoffset);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = srcval;
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = *srcreg;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8b
+****************************************************************************/
+void x86emuOp_mov_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint srcoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 srcval;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcoffset = decode_rmXX_address(mod, rl);
+	    srcval = fetch_data_long(srcoffset);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = srcval;
+	} else {
+	    u16 *destreg;
+	    u16 srcval;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcoffset = decode_rmXX_address(mod, rl);
+	    srcval = fetch_data_word(srcoffset);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = srcval;
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg, *srcreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = *srcreg;
+	} else {
+	    u16 *destreg, *srcreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rh);
+	    DECODE_PRINTF(",");
+	    srcreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = *srcreg;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8c
+****************************************************************************/
+void x86emuOp_mov_word_RM_SR(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u16 *destreg, *srcreg;
+    uint destoffset;
+    u16 destval;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",");
+	srcreg = decode_rm_seg_register(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	destval = *srcreg;
+	store_data_word(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_WORD_REGISTER(rl);
+	DECODE_PRINTF(",");
+	srcreg = decode_rm_seg_register(rh);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = *srcreg;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8d
+****************************************************************************/
+void x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u16 *srcreg;
+    uint destoffset;
+
+/*
+ * TODO: Need to handle address size prefix!
+ *
+ * lea	eax,[eax+ebx*2] ??
+ */
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LEA\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	srcreg = DECODE_RM_WORD_REGISTER(rh);
+	DECODE_PRINTF(",");
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*srcreg = (u16)destoffset;
+	}
+    /* } else { undefined.  Do nothing. } */
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8e
+****************************************************************************/
+void x86emuOp_mov_word_SR_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u16 *destreg, *srcreg;
+    uint srcoffset;
+    u16 srcval;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	destreg = decode_rm_seg_register(rh);
+	DECODE_PRINTF(",");
+	srcoffset = decode_rmXX_address(mod, rl);
+	srcval = fetch_data_word(srcoffset);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = srcval;
+    } else {			 /* register to register */
+	destreg = decode_rm_seg_register(rh);
+	DECODE_PRINTF(",");
+	srcreg = DECODE_RM_WORD_REGISTER(rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*destreg = *srcreg;
+    }
+    /*
+     * Clean up, and reset all the R_xSP pointers to the correct
+     * locations.  This is about 3x too much overhead (doing all the
+     * segreg ptrs when only one is needed, but this instruction
+     * *cannot* be that common, and this isn't too much work anyway.
+     */
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8f
+****************************************************************************/
+void x86emuOp_pop_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("POP\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (rh != 0) {
+	DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+	HALT_SYS();
+    }
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = pop_long();
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 destval;
+
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = pop_word();
+	    store_data_word(destoffset, destval);
+	}
+    } else {			/* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = pop_long();
+	} else {
+	    u16 *destreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = pop_word();
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x90
+****************************************************************************/
+void x86emuOp_nop(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("NOP\n");
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x91-0x97
+****************************************************************************/
+void x86emuOp_xchg_word_AX_register(u8 X86EMU_UNUSED(op1))
+{
+    u32 tmp;
+
+    op1 &= 0x7;
+
+    START_OF_INSTR();
+
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg32;
+	DECODE_PRINTF("XCHG\tEAX,");
+	reg32 = DECODE_RM_LONG_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	tmp = M.x86.R_EAX;
+	M.x86.R_EAX = *reg32;
+	*reg32 = tmp;
+    } else {
+	u16 *reg16;
+	DECODE_PRINTF("XCHG\tAX,");
+	reg16 = DECODE_RM_WORD_REGISTER(op1);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	tmp = M.x86.R_AX;
+	M.x86.R_EAX = *reg16;
+	*reg16 = (u16)tmp;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x98
+****************************************************************************/
+void x86emuOp_cbw(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("CWDE\n");
+    } else {
+	DECODE_PRINTF("CBW\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	if (M.x86.R_AX & 0x8000) {
+	    M.x86.R_EAX |= 0xffff0000;
+	} else {
+	    M.x86.R_EAX &= 0x0000ffff;
+	}
+    } else {
+	if (M.x86.R_AL & 0x80) {
+	    M.x86.R_AH = 0xff;
+	} else {
+	    M.x86.R_AH = 0x0;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x99
+****************************************************************************/
+void x86emuOp_cwd(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("CDQ\n");
+    } else {
+	DECODE_PRINTF("CWD\n");
+    }
+    DECODE_PRINTF("CWD\n");
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	if (M.x86.R_EAX & 0x80000000) {
+	    M.x86.R_EDX = 0xffffffff;
+	} else {
+	    M.x86.R_EDX = 0x0;
+	}
+    } else {
+	if (M.x86.R_AX & 0x8000) {
+	    M.x86.R_DX = 0xffff;
+	} else {
+	    M.x86.R_DX = 0x0;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9a
+****************************************************************************/
+void x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 farseg, faroff;
+
+    START_OF_INSTR();
+	DECODE_PRINTF("CALL\t");
+	faroff = fetch_word_imm();
+	farseg = fetch_word_imm();
+	DECODE_PRINTF2("%04x:", farseg);
+	DECODE_PRINTF2("%04x\n", faroff);
+	CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, farseg, faroff, "FAR ");
+
+    /* XXX
+     *
+     * Hooked interrupt vectors calling into our "BIOS" will cause
+     * problems unless all intersegment stuff is checked for BIOS
+     * access.	Check needed here.  For moment, let it alone.
+     */
+    TRACE_AND_STEP();
+    push_word(M.x86.R_CS);
+    M.x86.R_CS = farseg;
+    push_word(M.x86.R_IP);
+    M.x86.R_IP = faroff;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9b
+****************************************************************************/
+void x86emuOp_wait(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("WAIT");
+    TRACE_AND_STEP();
+    /* NADA.  */
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9c
+****************************************************************************/
+void x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1))
+{
+    u32 flags;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("PUSHFD\n");
+    } else {
+	DECODE_PRINTF("PUSHF\n");
+    }
+    TRACE_AND_STEP();
+
+    /* clear out *all* bits not representing flags, and turn on real bits */
+    flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON;
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	push_long(flags);
+    } else {
+	push_word((u16)flags);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9d
+****************************************************************************/
+void x86emuOp_popf_word(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("POPFD\n");
+    } else {
+	DECODE_PRINTF("POPF\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EFLG = pop_long();
+    } else {
+	M.x86.R_FLG = pop_word();
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9e
+****************************************************************************/
+void x86emuOp_sahf(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("SAHF\n");
+    TRACE_AND_STEP();
+    /* clear the lower bits of the flag register */
+    M.x86.R_FLG &= 0xffffff00;
+    /* or in the AH register into the flags register */
+    M.x86.R_FLG |= M.x86.R_AH;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9f
+****************************************************************************/
+void x86emuOp_lahf(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("LAHF\n");
+    TRACE_AND_STEP();
+	M.x86.R_AH = (u8)(M.x86.R_FLG & 0xff);
+    /*undocumented TC++ behavior??? Nope.  It's documented, but
+       you have too look real hard to notice it. */
+    M.x86.R_AH |= 0x2;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa0
+****************************************************************************/
+void x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 offset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\tAL,");
+    offset = fetch_word_imm();
+    DECODE_PRINTF2("[%04x]\n", offset);
+    TRACE_AND_STEP();
+    M.x86.R_AL = fetch_data_byte(offset);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa1
+****************************************************************************/
+void x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 offset;
+
+    START_OF_INSTR();
+    offset = fetch_word_imm();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset);
+    } else {
+	DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset);
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EAX = fetch_data_long(offset);
+    } else {
+	M.x86.R_AX = fetch_data_word(offset);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa2
+****************************************************************************/
+void x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 offset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    offset = fetch_word_imm();
+    DECODE_PRINTF2("[%04x],AL\n", offset);
+    TRACE_AND_STEP();
+    store_data_byte(offset, M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa3
+****************************************************************************/
+void x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 offset;
+
+    START_OF_INSTR();
+    offset = fetch_word_imm();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset);
+    } else {
+	DECODE_PRINTF2("MOV\t[%04x],AX\n", offset);
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	store_data_long(offset, M.x86.R_EAX);
+    } else {
+	store_data_word(offset, M.x86.R_AX);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa4
+****************************************************************************/
+void x86emuOp_movs_byte(u8 X86EMU_UNUSED(op1))
+{
+    u8	val;
+    u32 count;
+    int inc;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOVS\tBYTE\n");
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -1;
+    else
+	inc = 1;
+    TRACE_AND_STEP();
+    count = 1;
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	count = M.x86.R_CX;
+	M.x86.R_CX = 0;
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    }
+    while (count--) {
+	val = fetch_data_byte(M.x86.R_SI);
+	store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val);
+	M.x86.R_SI += inc;
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa5
+****************************************************************************/
+void x86emuOp_movs_word(u8 X86EMU_UNUSED(op1))
+{
+    u32 val;
+    int inc;
+    u32 count;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("MOVS\tDWORD\n");
+	if (ACCESS_FLAG(F_DF))	    /* down */
+	    inc = -4;
+	else
+	    inc = 4;
+    } else {
+	DECODE_PRINTF("MOVS\tWORD\n");
+	if (ACCESS_FLAG(F_DF))	    /* down */
+	    inc = -2;
+	else
+	    inc = 2;
+    }
+    TRACE_AND_STEP();
+    count = 1;
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	count = M.x86.R_CX;
+	M.x86.R_CX = 0;
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    }
+    while (count--) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    val = fetch_data_long(M.x86.R_SI);
+	    store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val);
+	} else {
+	    val = fetch_data_word(M.x86.R_SI);
+	    store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16)val);
+	}
+	M.x86.R_SI += inc;
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa6
+****************************************************************************/
+void x86emuOp_cmps_byte(u8 X86EMU_UNUSED(op1))
+{
+    s8 val1, val2;
+    int inc;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("CMPS\tBYTE\n");
+    TRACE_AND_STEP();
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -1;
+    else
+	inc = 1;
+
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* REPE	 */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    val1 = fetch_data_byte(M.x86.R_SI);
+	    val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+		     cmp_byte(val1, val2);
+	    M.x86.R_CX -= 1;
+	    M.x86.R_SI += inc;
+	    M.x86.R_DI += inc;
+	    if ( (M.x86.mode & SYSMODE_PREFIX_REPE) && (ACCESS_FLAG(F_ZF) == 0) ) break;
+	    if ( (M.x86.mode & SYSMODE_PREFIX_REPNE) && ACCESS_FLAG(F_ZF) ) break;
+	}
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    } else {
+	val1 = fetch_data_byte(M.x86.R_SI);
+	val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+	cmp_byte(val1, val2);
+	M.x86.R_SI += inc;
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa7
+****************************************************************************/
+void x86emuOp_cmps_word(u8 X86EMU_UNUSED(op1))
+{
+    u32 val1,val2;
+    int inc;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("CMPS\tDWORD\n");
+	inc = 4;
+    } else {
+	DECODE_PRINTF("CMPS\tWORD\n");
+	inc = 2;
+    }
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -inc;
+
+    TRACE_AND_STEP();
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* REPE	 */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		val1 = fetch_data_long(M.x86.R_SI);
+		val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_long(val1, val2);
+	    } else {
+		val1 = fetch_data_word(M.x86.R_SI);
+		val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_word((u16)val1, (u16)val2);
+	    }
+	    M.x86.R_CX -= 1;
+	    M.x86.R_SI += inc;
+	    M.x86.R_DI += inc;
+	    if ( (M.x86.mode & SYSMODE_PREFIX_REPE) && ACCESS_FLAG(F_ZF) == 0 ) break;
+	    if ( (M.x86.mode & SYSMODE_PREFIX_REPNE) && ACCESS_FLAG(F_ZF) ) break;
+	}
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    } else {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    val1 = fetch_data_long(M.x86.R_SI);
+	    val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_long(val1, val2);
+	} else {
+	    val1 = fetch_data_word(M.x86.R_SI);
+	    val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_word((u16)val1, (u16)val2);
+	}
+	M.x86.R_SI += inc;
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa8
+****************************************************************************/
+void x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int imm;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("TEST\tAL,");
+    imm = fetch_byte_imm();
+    DECODE_PRINTF2("%04x\n", imm);
+    TRACE_AND_STEP();
+	test_byte(M.x86.R_AL, (u8)imm);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa9
+****************************************************************************/
+void x86emuOp_test_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u32 srcval;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("TEST\tEAX,");
+	srcval = fetch_long_imm();
+    } else {
+	DECODE_PRINTF("TEST\tAX,");
+	srcval = fetch_word_imm();
+    }
+    DECODE_PRINTF2("%x\n", srcval);
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	test_long(M.x86.R_EAX, srcval);
+    } else {
+	test_word(M.x86.R_AX, (u16)srcval);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaa
+****************************************************************************/
+void x86emuOp_stos_byte(u8 X86EMU_UNUSED(op1))
+{
+    int inc;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("STOS\tBYTE\n");
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -1;
+    else
+	inc = 1;
+    TRACE_AND_STEP();
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+	    M.x86.R_CX -= 1;
+	    M.x86.R_DI += inc;
+	}
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    } else {
+	store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xab
+****************************************************************************/
+void x86emuOp_stos_word(u8 X86EMU_UNUSED(op1))
+{
+    int inc;
+    u32 count;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("STOS\tDWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -4;
+	else
+	    inc = 4;
+    } else {
+	DECODE_PRINTF("STOS\tWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -2;
+	else
+	    inc = 2;
+    }
+    TRACE_AND_STEP();
+    count = 1;
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	count = M.x86.R_CX;
+	M.x86.R_CX = 0;
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    }
+    while (count--) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX);
+	} else {
+	    store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX);
+	}
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xac
+****************************************************************************/
+void x86emuOp_lods_byte(u8 X86EMU_UNUSED(op1))
+{
+    int inc;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LODS\tBYTE\n");
+    TRACE_AND_STEP();
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -1;
+    else
+	inc = 1;
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+	    M.x86.R_CX -= 1;
+	    M.x86.R_SI += inc;
+	}
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    } else {
+	M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+	M.x86.R_SI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xad
+****************************************************************************/
+void x86emuOp_lods_word(u8 X86EMU_UNUSED(op1))
+{
+    int inc;
+    u32 count;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("LODS\tDWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -4;
+	else
+	    inc = 4;
+    } else {
+	DECODE_PRINTF("LODS\tWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -2;
+	else
+	    inc = 2;
+    }
+    TRACE_AND_STEP();
+    count = 1;
+    if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+	/* dont care whether REPE or REPNE */
+	/* move them until CX is ZERO. */
+	count = M.x86.R_CX;
+	M.x86.R_CX = 0;
+	M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+    }
+    while (count--) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    M.x86.R_EAX = fetch_data_long(M.x86.R_SI);
+	} else {
+	    M.x86.R_AX = fetch_data_word(M.x86.R_SI);
+	}
+	M.x86.R_SI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xae
+****************************************************************************/
+void x86emuOp_scas_byte(u8 X86EMU_UNUSED(op1))
+{
+    s8 val2;
+    int inc;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("SCAS\tBYTE\n");
+    TRACE_AND_STEP();
+    if (ACCESS_FLAG(F_DF))   /* down */
+	inc = -1;
+    else
+	inc = 1;
+    if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+	/* REPE	 */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_byte(M.x86.R_AL, val2);
+	    M.x86.R_CX -= 1;
+	    M.x86.R_DI += inc;
+	    if (ACCESS_FLAG(F_ZF) == 0)
+		break;
+	}
+	M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+    } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+	/* REPNE  */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_byte(M.x86.R_AL, val2);
+	    M.x86.R_CX -= 1;
+	    M.x86.R_DI += inc;
+	    if (ACCESS_FLAG(F_ZF))
+		break;		/* zero flag set means equal */
+	}
+	M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+    } else {
+	val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+	cmp_byte(M.x86.R_AL, val2);
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaf
+****************************************************************************/
+void x86emuOp_scas_word(u8 X86EMU_UNUSED(op1))
+{
+    int inc;
+    u32 val;
+
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("SCAS\tDWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -4;
+	else
+	    inc = 4;
+    } else {
+	DECODE_PRINTF("SCAS\tWORD\n");
+	if (ACCESS_FLAG(F_DF))	 /* down */
+	    inc = -2;
+	else
+	    inc = 2;
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+	/* REPE	 */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_long(M.x86.R_EAX, val);
+	    } else {
+		val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_word(M.x86.R_AX, (u16)val);
+	    }
+	    M.x86.R_CX -= 1;
+	    M.x86.R_DI += inc;
+	    if (ACCESS_FLAG(F_ZF) == 0)
+		break;
+	}
+	M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+    } else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+	/* REPNE  */
+	/* move them until CX is ZERO. */
+	while (M.x86.R_CX != 0) {
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_long(M.x86.R_EAX, val);
+	    } else {
+		val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+		cmp_word(M.x86.R_AX, (u16)val);
+	    }
+	    M.x86.R_CX -= 1;
+	    M.x86.R_DI += inc;
+	    if (ACCESS_FLAG(F_ZF))
+		break;		/* zero flag set means equal */
+	}
+	M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+    } else {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_long(M.x86.R_EAX, val);
+	} else {
+	    val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+	    cmp_word(M.x86.R_AX, (u16)val);
+	}
+	M.x86.R_DI += inc;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb0 - 0xb7
+****************************************************************************/
+void x86emuOp_mov_byte_register_IMM(u8 op1)
+{
+    u8 imm, *ptr;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    ptr = DECODE_RM_BYTE_REGISTER(op1 & 0x7);
+    DECODE_PRINTF(",");
+    imm = fetch_byte_imm();
+    DECODE_PRINTF2("%x\n", imm);
+    TRACE_AND_STEP();
+    *ptr = imm;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb8 - 0xbf
+****************************************************************************/
+void x86emuOp_mov_word_register_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u32 srcval;
+
+    op1 &= 0x7;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	u32 *reg32;
+	reg32 = DECODE_RM_LONG_REGISTER(op1);
+	srcval = fetch_long_imm();
+	DECODE_PRINTF2(",%x\n", srcval);
+	TRACE_AND_STEP();
+	*reg32 = srcval;
+    } else {
+	u16 *reg16;
+	reg16 = DECODE_RM_WORD_REGISTER(op1);
+	srcval = fetch_word_imm();
+	DECODE_PRINTF2(",%x\n", srcval);
+	TRACE_AND_STEP();
+	*reg16 = (u16)srcval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc0
+****************************************************************************/
+void x86emuOp_opcC0_byte_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 destval;
+    u8 amt;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	amt = fetch_byte_imm();
+	DECODE_PRINTF2(",%x\n", amt);
+	destval = fetch_data_byte(destoffset);
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (destval, amt);
+	store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	amt = fetch_byte_imm();
+	DECODE_PRINTF2(",%x\n", amt);
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+	*destreg = destval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc1
+****************************************************************************/
+void x86emuOp_opcC1_word_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+    u8 amt;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+
+	    DECODE_PRINTF("DWORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    amt = fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", amt);
+	    destval = fetch_data_long(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_long_operation[rh]) (destval, amt);
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 destval;
+
+	    DECODE_PRINTF("WORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    amt = fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", amt);
+	    destval = fetch_data_word(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_word_operation[rh]) (destval, amt);
+	    store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    amt = fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", amt);
+	    TRACE_AND_STEP();
+	    *destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+	} else {
+	    u16 *destreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    amt = fetch_byte_imm();
+	    DECODE_PRINTF2(",%x\n", amt);
+	    TRACE_AND_STEP();
+	    *destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc2
+****************************************************************************/
+void x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 imm;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("RET\t");
+    imm = fetch_word_imm();
+    DECODE_PRINTF2("%x\n", imm);
+	RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip);
+	TRACE_AND_STEP();
+    M.x86.R_IP = pop_word();
+    M.x86.R_SP += imm;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc3
+****************************************************************************/
+void x86emuOp_ret_near(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("RET\n");
+	RETURN_TRACE("RET",M.x86.saved_cs,M.x86.saved_ip);
+	TRACE_AND_STEP();
+    M.x86.R_IP = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc4
+****************************************************************************/
+void x86emuOp_les_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rh, rl;
+    u16 *dstreg;
+    uint srcoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LES\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	dstreg = DECODE_RM_WORD_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*dstreg = fetch_data_word(srcoffset);
+	M.x86.R_ES = fetch_data_word(srcoffset + 2);
+    }
+    /* else UNDEFINED!			 register to register */
+
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc5
+****************************************************************************/
+void x86emuOp_lds_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rh, rl;
+    u16 *dstreg;
+    uint srcoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LDS\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (mod < 3) {
+	dstreg = DECODE_RM_WORD_REGISTER(rh);
+	DECODE_PRINTF(",");
+	srcoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	*dstreg = fetch_data_word(srcoffset);
+	M.x86.R_DS = fetch_data_word(srcoffset + 2);
+    }
+    /* else UNDEFINED! */
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc6
+****************************************************************************/
+void x86emuOp_mov_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 imm;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (rh != 0) {
+	DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n");
+	HALT_SYS();
+    }
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2(",%2x\n", imm);
+	TRACE_AND_STEP();
+	store_data_byte(destoffset, imm);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	imm = fetch_byte_imm();
+	DECODE_PRINTF2(",%2x\n", imm);
+	TRACE_AND_STEP();
+	*destreg = imm;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc7
+****************************************************************************/
+void x86emuOp_mov_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("MOV\t");
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    if (rh != 0) {
+	DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+	HALT_SYS();
+    }
+    if (mod < 3) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 imm;
+
+	    DECODE_PRINTF("DWORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    store_data_long(destoffset, imm);
+	} else {
+	    u16 imm;
+
+	    DECODE_PRINTF("WORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    store_data_word(destoffset, imm);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 *destreg;
+			u32 imm;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    imm = fetch_long_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    *destreg = imm;
+	} else {
+			u16 *destreg;
+			u16 imm;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    imm = fetch_word_imm();
+	    DECODE_PRINTF2(",%x\n", imm);
+	    TRACE_AND_STEP();
+	    *destreg = imm;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc8
+****************************************************************************/
+void x86emuOp_enter(u8 X86EMU_UNUSED(op1))
+{
+    u16 local,frame_pointer;
+    u8	nesting;
+    int i;
+
+    START_OF_INSTR();
+    local = fetch_word_imm();
+    nesting = fetch_byte_imm();
+    DECODE_PRINTF2("ENTER %x\n", local);
+    DECODE_PRINTF2(",%x\n", nesting);
+    TRACE_AND_STEP();
+    push_word(M.x86.R_BP);
+    frame_pointer = M.x86.R_SP;
+    if (nesting > 0) {
+	for (i = 1; i < nesting; i++) {
+	    M.x86.R_BP -= 2;
+	    push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP));
+	    }
+	push_word(frame_pointer);
+	}
+    M.x86.R_BP = frame_pointer;
+    M.x86.R_SP = (u16)(M.x86.R_SP - local);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc9
+****************************************************************************/
+void x86emuOp_leave(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("LEAVE\n");
+    TRACE_AND_STEP();
+    M.x86.R_SP = M.x86.R_BP;
+    M.x86.R_BP = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xca
+****************************************************************************/
+void x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 imm;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("RETF\t");
+    imm = fetch_word_imm();
+    DECODE_PRINTF2("%x\n", imm);
+	RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip);
+	TRACE_AND_STEP();
+    M.x86.R_IP = pop_word();
+    M.x86.R_CS = pop_word();
+    M.x86.R_SP += imm;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcb
+****************************************************************************/
+void x86emuOp_ret_far(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("RETF\n");
+	RETURN_TRACE("RETF",M.x86.saved_cs,M.x86.saved_ip);
+	TRACE_AND_STEP();
+    M.x86.R_IP = pop_word();
+    M.x86.R_CS = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcc
+****************************************************************************/
+void x86emuOp_int3(u8 X86EMU_UNUSED(op1))
+{
+    u16 tmp;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("INT 3\n");
+    tmp = (u16) mem_access_word(3 * 4 + 2);
+    /* access the segment register */
+    TRACE_AND_STEP();
+	if (_X86EMU_intrTab[3]) {
+		(*_X86EMU_intrTab[3])(3);
+    } else {
+	push_word((u16)M.x86.R_FLG);
+	CLEAR_FLAG(F_IF);
+	CLEAR_FLAG(F_TF);
+	push_word(M.x86.R_CS);
+	M.x86.R_CS = mem_access_word(3 * 4 + 2);
+	push_word(M.x86.R_IP);
+	M.x86.R_IP = mem_access_word(3 * 4);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcd
+****************************************************************************/
+void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 tmp;
+    u8 intnum;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("INT\t");
+    intnum = fetch_byte_imm();
+    DECODE_PRINTF2("%x\n", intnum);
+    tmp = mem_access_word(intnum * 4 + 2);
+    TRACE_AND_STEP();
+	if (_X86EMU_intrTab[intnum]) {
+		(*_X86EMU_intrTab[intnum])(intnum);
+    } else {
+	push_word((u16)M.x86.R_FLG);
+	CLEAR_FLAG(F_IF);
+	CLEAR_FLAG(F_TF);
+	push_word(M.x86.R_CS);
+	M.x86.R_CS = mem_access_word(intnum * 4 + 2);
+	push_word(M.x86.R_IP);
+	M.x86.R_IP = mem_access_word(intnum * 4);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xce
+****************************************************************************/
+void x86emuOp_into(u8 X86EMU_UNUSED(op1))
+{
+    u16 tmp;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("INTO\n");
+    TRACE_AND_STEP();
+    if (ACCESS_FLAG(F_OF)) {
+	tmp = mem_access_word(4 * 4 + 2);
+		if (_X86EMU_intrTab[4]) {
+			(*_X86EMU_intrTab[4])(4);
+	} else {
+	    push_word((u16)M.x86.R_FLG);
+	    CLEAR_FLAG(F_IF);
+	    CLEAR_FLAG(F_TF);
+	    push_word(M.x86.R_CS);
+	    M.x86.R_CS = mem_access_word(4 * 4 + 2);
+	    push_word(M.x86.R_IP);
+	    M.x86.R_IP = mem_access_word(4 * 4);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcf
+****************************************************************************/
+void x86emuOp_iret(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("IRET\n");
+
+    TRACE_AND_STEP();
+
+    M.x86.R_IP = pop_word();
+    M.x86.R_CS = pop_word();
+    M.x86.R_FLG = pop_word();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd0
+****************************************************************************/
+void x86emuOp_opcD0_byte_RM_1(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 destval;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",1\n");
+	destval = fetch_data_byte(destoffset);
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (destval, 1);
+	store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",1\n");
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (*destreg, 1);
+	*destreg = destval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd1
+****************************************************************************/
+void x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    if (mod < 3) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+
+	    DECODE_PRINTF("DWORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    DECODE_PRINTF(",1\n");
+	    destval = fetch_data_long(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_long_operation[rh]) (destval, 1);
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 destval;
+
+	    DECODE_PRINTF("WORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    DECODE_PRINTF(",1\n");
+	    destval = fetch_data_word(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_word_operation[rh]) (destval, 1);
+	    store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+			u32 destval;
+			u32 *destreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",1\n");
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_long_operation[rh]) (*destreg, 1);
+	    *destreg = destval;
+	} else {
+			u16 destval;
+			u16 *destreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",1\n");
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_word_operation[rh]) (*destreg, 1);
+	    *destreg = destval;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd2
+****************************************************************************/
+void x86emuOp_opcD2_byte_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 destval;
+    u8 amt;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    amt = M.x86.R_CL;
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF(",CL\n");
+	destval = fetch_data_byte(destoffset);
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (destval, amt);
+	store_data_byte(destoffset, destval);
+    } else {			 /* register to register */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF(",CL\n");
+	TRACE_AND_STEP();
+	destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+	*destreg = destval;
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd3
+****************************************************************************/
+void x86emuOp_opcD3_word_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+    u8 amt;
+
+    /*
+     * Yet another weirdo special case instruction format.  Part of
+     * the opcode held below in "RH".  Doubly nested case would
+     * result, except that the decoded instruction
+     */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("ROL\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("ROR\t");
+	    break;
+	case 2:
+	    DECODE_PRINTF("RCL\t");
+	    break;
+	case 3:
+	    DECODE_PRINTF("RCR\t");
+	    break;
+	case 4:
+	    DECODE_PRINTF("SHL\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("SHR\t");
+	    break;
+	case 6:
+	    DECODE_PRINTF("SAL\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("SAR\t");
+	    break;
+	}
+    }
+#endif
+    /* know operation, decode the mod byte to find the addressing
+       mode. */
+    amt = M.x86.R_CL;
+    if (mod < 3) {
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval;
+
+	    DECODE_PRINTF("DWORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    DECODE_PRINTF(",CL\n");
+	    destval = fetch_data_long(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_long_operation[rh]) (destval, amt);
+	    store_data_long(destoffset, destval);
+	} else {
+	    u16 destval;
+
+	    DECODE_PRINTF("WORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    DECODE_PRINTF(",CL\n");
+	    destval = fetch_data_word(destoffset);
+	    TRACE_AND_STEP();
+	    destval = (*opcD1_word_operation[rh]) (destval, amt);
+	    store_data_word(destoffset, destval);
+	}
+    } else {			 /* register to register */
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+	    DECODE_PRINTF(",CL\n");
+	    TRACE_AND_STEP();
+	    *destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+	} else {
+	    u16 *destreg;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF(",CL\n");
+	    TRACE_AND_STEP();
+	    *destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd4
+****************************************************************************/
+void x86emuOp_aam(u8 X86EMU_UNUSED(op1))
+{
+    u8 a;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("AAM\n");
+    a = fetch_byte_imm();      /* this is a stupid encoding. */
+    if (a != 10) {
+	DECODE_PRINTF("ERROR DECODING AAM\n");
+	TRACE_REGS();
+	HALT_SYS();
+    }
+    TRACE_AND_STEP();
+    /* note the type change here --- returning AL and AH in AX. */
+    M.x86.R_AX = aam_word(M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd5
+****************************************************************************/
+void x86emuOp_aad(u8 X86EMU_UNUSED(op1))
+{
+    u8 a;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("AAD\n");
+    a = fetch_byte_imm();
+    TRACE_AND_STEP();
+    M.x86.R_AX = aad_word(M.x86.R_AX);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/* opcode 0xd6 ILLEGAL OPCODE */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd7
+****************************************************************************/
+void x86emuOp_xlat(u8 X86EMU_UNUSED(op1))
+{
+    u16 addr;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("XLAT\n");
+    TRACE_AND_STEP();
+	addr = (u16)(M.x86.R_BX + (u8)M.x86.R_AL);
+    M.x86.R_AL = fetch_data_byte(addr);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/* instuctions	D8 .. DF are in i87_ops.c */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe0
+****************************************************************************/
+void x86emuOp_loopne(u8 X86EMU_UNUSED(op1))
+{
+    s16 ip;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LOOPNE\t");
+    ip = (s8) fetch_byte_imm();
+    ip += (s16) M.x86.R_IP;
+    DECODE_PRINTF2("%04x\n", ip);
+    TRACE_AND_STEP();
+    M.x86.R_CX -= 1;
+    if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF))	    /* CX != 0 and !ZF */
+	M.x86.R_IP = ip;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe1
+****************************************************************************/
+void x86emuOp_loope(u8 X86EMU_UNUSED(op1))
+{
+    s16 ip;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LOOPE\t");
+    ip = (s8) fetch_byte_imm();
+    ip += (s16) M.x86.R_IP;
+    DECODE_PRINTF2("%04x\n", ip);
+    TRACE_AND_STEP();
+    M.x86.R_CX -= 1;
+    if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF))	    /* CX != 0 and ZF */
+	M.x86.R_IP = ip;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe2
+****************************************************************************/
+void x86emuOp_loop(u8 X86EMU_UNUSED(op1))
+{
+    s16 ip;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("LOOP\t");
+    ip = (s8) fetch_byte_imm();
+    ip += (s16) M.x86.R_IP;
+    DECODE_PRINTF2("%04x\n", ip);
+    TRACE_AND_STEP();
+    M.x86.R_CX -= 1;
+    if (M.x86.R_CX != 0)
+	M.x86.R_IP = ip;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe3
+****************************************************************************/
+void x86emuOp_jcxz(u8 X86EMU_UNUSED(op1))
+{
+    u16 target;
+    s8	offset;
+
+    /* jump to byte offset if overflow flag is set */
+    START_OF_INSTR();
+    DECODE_PRINTF("JCXZ\t");
+    offset = (s8)fetch_byte_imm();
+    target = (u16)(M.x86.R_IP + offset);
+    DECODE_PRINTF2("%x\n", target);
+    TRACE_AND_STEP();
+    if (M.x86.R_CX == 0)
+	M.x86.R_IP = target;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe4
+****************************************************************************/
+void x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u8 port;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("IN\t");
+	port = (u8) fetch_byte_imm();
+    DECODE_PRINTF2("%x,AL\n", port);
+    TRACE_AND_STEP();
+    M.x86.R_AL = (*sys_inb)(port);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe5
+****************************************************************************/
+void x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u8 port;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("IN\t");
+	port = (u8) fetch_byte_imm();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF2("EAX,%x\n", port);
+    } else {
+	DECODE_PRINTF2("AX,%x\n", port);
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EAX = (*sys_inl)(port);
+    } else {
+	M.x86.R_AX = (*sys_inw)(port);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe6
+****************************************************************************/
+void x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1))
+{
+    u8 port;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("OUT\t");
+	port = (u8) fetch_byte_imm();
+    DECODE_PRINTF2("%x,AL\n", port);
+    TRACE_AND_STEP();
+    (*sys_outb)(port, M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe7
+****************************************************************************/
+void x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1))
+{
+    u8 port;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("OUT\t");
+	port = (u8) fetch_byte_imm();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF2("%x,EAX\n", port);
+    } else {
+	DECODE_PRINTF2("%x,AX\n", port);
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	(*sys_outl)(port, M.x86.R_EAX);
+    } else {
+	(*sys_outw)(port, M.x86.R_AX);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe8
+****************************************************************************/
+void x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+    s16 ip;
+
+    START_OF_INSTR();
+	DECODE_PRINTF("CALL\t");
+	ip = (s16) fetch_word_imm();
+	ip += (s16) M.x86.R_IP;	   /* CHECK SIGN */
+	DECODE_PRINTF2("%04x\n", ip);
+	CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip, "");
+    TRACE_AND_STEP();
+    push_word(M.x86.R_IP);
+    M.x86.R_IP = ip;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe9
+****************************************************************************/
+void x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+    int ip;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("JMP\t");
+    ip = (s16)fetch_word_imm();
+    ip += (s16)M.x86.R_IP;
+    DECODE_PRINTF2("%04x\n", ip);
+    TRACE_AND_STEP();
+    M.x86.R_IP = (u16)ip;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xea
+****************************************************************************/
+void x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 cs, ip;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("JMP\tFAR ");
+    ip = fetch_word_imm();
+    cs = fetch_word_imm();
+    DECODE_PRINTF2("%04x:", cs);
+    DECODE_PRINTF2("%04x\n", ip);
+    TRACE_AND_STEP();
+    M.x86.R_IP = ip;
+    M.x86.R_CS = cs;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xeb
+****************************************************************************/
+void x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+    u16 target;
+    s8 offset;
+
+    START_OF_INSTR();
+    DECODE_PRINTF("JMP\t");
+    offset = (s8)fetch_byte_imm();
+    target = (u16)(M.x86.R_IP + offset);
+    DECODE_PRINTF2("%x\n", target);
+    TRACE_AND_STEP();
+    M.x86.R_IP = target;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xec
+****************************************************************************/
+void x86emuOp_in_byte_AL_DX(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("IN\tAL,DX\n");
+    TRACE_AND_STEP();
+    M.x86.R_AL = (*sys_inb)(M.x86.R_DX);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xed
+****************************************************************************/
+void x86emuOp_in_word_AX_DX(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("IN\tEAX,DX\n");
+    } else {
+	DECODE_PRINTF("IN\tAX,DX\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	M.x86.R_EAX = (*sys_inl)(M.x86.R_DX);
+    } else {
+	M.x86.R_AX = (*sys_inw)(M.x86.R_DX);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xee
+****************************************************************************/
+void x86emuOp_out_byte_DX_AL(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("OUT\tDX,AL\n");
+    TRACE_AND_STEP();
+    (*sys_outb)(M.x86.R_DX, M.x86.R_AL);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xef
+****************************************************************************/
+void x86emuOp_out_word_DX_AX(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	DECODE_PRINTF("OUT\tDX,EAX\n");
+    } else {
+	DECODE_PRINTF("OUT\tDX,AX\n");
+    }
+    TRACE_AND_STEP();
+    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	(*sys_outl)(M.x86.R_DX, M.x86.R_EAX);
+    } else {
+	(*sys_outw)(M.x86.R_DX, M.x86.R_AX);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf0
+****************************************************************************/
+void x86emuOp_lock(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("LOCK:\n");
+    TRACE_AND_STEP();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/*opcode 0xf1 ILLEGAL OPERATION */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf2
+****************************************************************************/
+void x86emuOp_repne(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("REPNE\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_PREFIX_REPNE;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf3
+****************************************************************************/
+void x86emuOp_repe(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("REPE\n");
+    TRACE_AND_STEP();
+    M.x86.mode |= SYSMODE_PREFIX_REPE;
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf4
+****************************************************************************/
+void x86emuOp_halt(u8 X86EMU_UNUSED(op1))
+{
+    START_OF_INSTR();
+    DECODE_PRINTF("HALT\n");
+    TRACE_AND_STEP();
+    HALT_SYS();
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf5
+****************************************************************************/
+void x86emuOp_cmc(u8 X86EMU_UNUSED(op1))
+{
+    /* complement the carry flag. */
+    START_OF_INSTR();
+    DECODE_PRINTF("CMC\n");
+    TRACE_AND_STEP();
+    TOGGLE_FLAG(F_CF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf6
+****************************************************************************/
+void x86emuOp_opcF6_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    u8 *destreg;
+    uint destoffset;
+    u8 destval, srcval;
+
+    /* long, drawn out code follows.  Double switch for a total
+       of 32 cases.  */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    DECODE_PRINTF(opF6_names[rh]);
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	destval = fetch_data_byte(destoffset);
+
+	switch (rh) {
+	case 0:		/* test byte imm */
+	    DECODE_PRINTF(",");
+	    srcval = fetch_byte_imm();
+	    DECODE_PRINTF2("%02x\n", srcval);
+	    TRACE_AND_STEP();
+	    test_byte(destval, srcval);
+	    break;
+	case 1:
+	    DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+	    HALT_SYS();
+	    break;
+	case 2:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = not_byte(destval);
+	    store_data_byte(destoffset, destval);
+	    break;
+	case 3:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    destval = neg_byte(destval);
+	    store_data_byte(destoffset, destval);
+	    break;
+	case 4:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    mul_byte(destval);
+	    break;
+	case 5:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    imul_byte(destval);
+	    break;
+	case 6:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    div_byte(destval);
+	    break;
+	default:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    idiv_byte(destval);
+	    break;
+	}
+    } else {			 /* mod=11 */
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	switch (rh) {
+	case 0:		/* test byte imm */
+	    DECODE_PRINTF(",");
+	    srcval = fetch_byte_imm();
+	    DECODE_PRINTF2("%02x\n", srcval);
+	    TRACE_AND_STEP();
+	    test_byte(*destreg, srcval);
+	    break;
+	case 1:
+	    DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+	    HALT_SYS();
+	    break;
+	case 2:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = not_byte(*destreg);
+	    break;
+	case 3:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    *destreg = neg_byte(*destreg);
+	    break;
+	case 4:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    mul_byte(*destreg);	     /*!!!  */
+	    break;
+	case 5:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    imul_byte(*destreg);
+	    break;
+	case 6:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    div_byte(*destreg);
+	    break;
+	default:
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    idiv_byte(*destreg);
+	    break;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf7
+****************************************************************************/
+void x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rl, rh;
+    uint destoffset;
+
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+    DECODE_PRINTF(opF6_names[rh]);
+    if (mod < 3) {
+
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 destval, srcval;
+
+	    DECODE_PRINTF("DWORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    destval = fetch_data_long(destoffset);
+
+	    switch (rh) {
+	    case 0:
+		DECODE_PRINTF(",");
+		srcval = fetch_long_imm();
+		DECODE_PRINTF2("%x\n", srcval);
+		TRACE_AND_STEP();
+		test_long(destval, srcval);
+		break;
+	    case 1:
+		DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n");
+		HALT_SYS();
+		break;
+	    case 2:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = not_long(destval);
+		store_data_long(destoffset, destval);
+		break;
+	    case 3:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = neg_long(destval);
+		store_data_long(destoffset, destval);
+		break;
+	    case 4:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		mul_long(destval);
+		break;
+	    case 5:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		imul_long(destval);
+		break;
+	    case 6:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		div_long(destval);
+		break;
+	    case 7:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		idiv_long(destval);
+		break;
+	    }
+	} else {
+	    u16 destval, srcval;
+
+	    DECODE_PRINTF("WORD PTR ");
+	    destoffset = decode_rmXX_address(mod, rl);
+	    destval = fetch_data_word(destoffset);
+
+	    switch (rh) {
+	    case 0:	    /* test word imm */
+		DECODE_PRINTF(",");
+		srcval = fetch_word_imm();
+		DECODE_PRINTF2("%x\n", srcval);
+		TRACE_AND_STEP();
+		test_word(destval, srcval);
+		break;
+	    case 1:
+		DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n");
+		HALT_SYS();
+		break;
+	    case 2:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = not_word(destval);
+		store_data_word(destoffset, destval);
+		break;
+	    case 3:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		destval = neg_word(destval);
+		store_data_word(destoffset, destval);
+		break;
+	    case 4:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		mul_word(destval);
+		break;
+	    case 5:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		imul_word(destval);
+		break;
+	    case 6:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		div_word(destval);
+		break;
+	    case 7:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		idiv_word(destval);
+		break;
+	    }
+	}
+
+    } else {			 /* mod=11 */
+
+	if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+	    u32 *destreg;
+	    u32 srcval;
+
+	    destreg = DECODE_RM_LONG_REGISTER(rl);
+
+	    switch (rh) {
+	    case 0:	    /* test word imm */
+		DECODE_PRINTF(",");
+		srcval = fetch_long_imm();
+		DECODE_PRINTF2("%x\n", srcval);
+		TRACE_AND_STEP();
+		test_long(*destreg, srcval);
+		break;
+	    case 1:
+		DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+		HALT_SYS();
+		break;
+	    case 2:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = not_long(*destreg);
+		break;
+	    case 3:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = neg_long(*destreg);
+		break;
+	    case 4:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		mul_long(*destreg);	 /*!!!	*/
+		break;
+	    case 5:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		imul_long(*destreg);
+		break;
+	    case 6:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		div_long(*destreg);
+		break;
+	    case 7:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		idiv_long(*destreg);
+		break;
+	    }
+	} else {
+	    u16 *destreg;
+	    u16 srcval;
+
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+
+	    switch (rh) {
+	    case 0:	    /* test word imm */
+		DECODE_PRINTF(",");
+		srcval = fetch_word_imm();
+		DECODE_PRINTF2("%x\n", srcval);
+		TRACE_AND_STEP();
+		test_word(*destreg, srcval);
+		break;
+	    case 1:
+		DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+		HALT_SYS();
+		break;
+	    case 2:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = not_word(*destreg);
+		break;
+	    case 3:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = neg_word(*destreg);
+		break;
+	    case 4:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		mul_word(*destreg);	 /*!!!	*/
+		break;
+	    case 5:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		imul_word(*destreg);
+		break;
+	    case 6:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		div_word(*destreg);
+		break;
+	    case 7:
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		idiv_word(*destreg);
+		break;
+	    }
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf8
+****************************************************************************/
+void x86emuOp_clc(u8 X86EMU_UNUSED(op1))
+{
+    /* clear the carry flag. */
+    START_OF_INSTR();
+    DECODE_PRINTF("CLC\n");
+    TRACE_AND_STEP();
+    CLEAR_FLAG(F_CF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf9
+****************************************************************************/
+void x86emuOp_stc(u8 X86EMU_UNUSED(op1))
+{
+    /* set the carry flag. */
+    START_OF_INSTR();
+    DECODE_PRINTF("STC\n");
+    TRACE_AND_STEP();
+    SET_FLAG(F_CF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfa
+****************************************************************************/
+void x86emuOp_cli(u8 X86EMU_UNUSED(op1))
+{
+    /* clear interrupts. */
+    START_OF_INSTR();
+    DECODE_PRINTF("CLI\n");
+    TRACE_AND_STEP();
+    CLEAR_FLAG(F_IF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfb
+****************************************************************************/
+void x86emuOp_sti(u8 X86EMU_UNUSED(op1))
+{
+    /* enable  interrupts. */
+    START_OF_INSTR();
+    DECODE_PRINTF("STI\n");
+    TRACE_AND_STEP();
+    SET_FLAG(F_IF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfc
+****************************************************************************/
+void x86emuOp_cld(u8 X86EMU_UNUSED(op1))
+{
+    /* clear interrupts. */
+    START_OF_INSTR();
+    DECODE_PRINTF("CLD\n");
+    TRACE_AND_STEP();
+    CLEAR_FLAG(F_DF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfd
+****************************************************************************/
+void x86emuOp_std(u8 X86EMU_UNUSED(op1))
+{
+    /* clear interrupts. */
+    START_OF_INSTR();
+    DECODE_PRINTF("STD\n");
+    TRACE_AND_STEP();
+    SET_FLAG(F_DF);
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfe
+****************************************************************************/
+void x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rh, rl;
+    u8 destval;
+    uint destoffset;
+    u8 *destreg;
+
+    /* Yet another special case instruction. */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    DECODE_PRINTF("INC\t");
+	    break;
+	case 1:
+	    DECODE_PRINTF("DEC\t");
+	    break;
+	case 2:
+	case 3:
+	case 4:
+	case 5:
+	case 6:
+	case 7:
+	    DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod);
+	    HALT_SYS();
+	    break;
+	}
+    }
+#endif
+    if (mod < 3) {
+	DECODE_PRINTF("BYTE PTR ");
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF("\n");
+	destval = fetch_data_byte(destoffset);
+	TRACE_AND_STEP();
+	if (rh == 0)
+	  destval = inc_byte(destval);
+	else
+	  destval = dec_byte(destval);
+	store_data_byte(destoffset, destval);
+    } else {
+	destreg = DECODE_RM_BYTE_REGISTER(rl);
+	DECODE_PRINTF("\n");
+	TRACE_AND_STEP();
+	if (rh == 0)
+	  *destreg = inc_byte(*destreg);
+	else
+	  *destreg = dec_byte(*destreg);
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xff
+****************************************************************************/
+void x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1))
+{
+    int mod, rh, rl;
+    uint destoffset = 0;
+	u16 *destreg;
+	u16 destval,destval2;
+
+    /* Yet another special case instruction. */
+    START_OF_INSTR();
+    FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+    if (DEBUG_DECODE()) {
+	/* XXX DECODE_PRINTF may be changed to something more
+	   general, so that it is important to leave the strings
+	   in the same format, even though the result is that the
+	   above test is done twice. */
+
+	switch (rh) {
+	case 0:
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("INC\tDWORD PTR ");
+	    } else {
+		DECODE_PRINTF("INC\tWORD PTR ");
+	    }
+	    break;
+	case 1:
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		DECODE_PRINTF("DEC\tDWORD PTR ");
+	    } else {
+		DECODE_PRINTF("DEC\tWORD PTR ");
+	    }
+	    break;
+	case 2:
+	    DECODE_PRINTF("CALL\t ");
+	    break;
+	case 3:
+	    DECODE_PRINTF("CALL\tFAR ");
+	    break;
+	case 4:
+	    DECODE_PRINTF("JMP\t");
+	    break;
+	case 5:
+	    DECODE_PRINTF("JMP\tFAR ");
+	    break;
+	case 6:
+	    DECODE_PRINTF("PUSH\t");
+	    break;
+	case 7:
+	    DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t");
+	    HALT_SYS();
+	    break;
+	}
+    }
+#endif
+    if (mod < 3) {
+	destoffset = decode_rmXX_address(mod, rl);
+	DECODE_PRINTF("\n");
+	switch (rh) {
+	case 0:		/* inc word ptr ... */
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 destval;
+
+		destval = fetch_data_long(destoffset);
+		TRACE_AND_STEP();
+		destval = inc_long(destval);
+		store_data_long(destoffset, destval);
+	    } else {
+		u16 destval;
+
+		destval = fetch_data_word(destoffset);
+		TRACE_AND_STEP();
+		destval = inc_word(destval);
+		store_data_word(destoffset, destval);
+	    }
+	    break;
+	case 1:		/* dec word ptr ... */
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 destval;
+
+		destval = fetch_data_long(destoffset);
+		TRACE_AND_STEP();
+		destval = dec_long(destval);
+		store_data_long(destoffset, destval);
+	    } else {
+		u16 destval;
+
+		destval = fetch_data_word(destoffset);
+		TRACE_AND_STEP();
+		destval = dec_word(destval);
+		store_data_word(destoffset, destval);
+	    }
+	    break;
+	case 2:		/* call word ptr ... */
+	    destval = fetch_data_word(destoffset);
+	    TRACE_AND_STEP();
+	    push_word(M.x86.R_IP);
+	    M.x86.R_IP = destval;
+	    break;
+	case 3:		/* call far ptr ... */
+	    destval = fetch_data_word(destoffset);
+	    destval2 = fetch_data_word(destoffset + 2);
+	    TRACE_AND_STEP();
+	    push_word(M.x86.R_CS);
+	    M.x86.R_CS = destval2;
+	    push_word(M.x86.R_IP);
+	    M.x86.R_IP = destval;
+	    break;
+	case 4:		/* jmp word ptr ... */
+	    destval = fetch_data_word(destoffset);
+	    TRACE_AND_STEP();
+	    M.x86.R_IP = destval;
+	    break;
+	case 5:		/* jmp far ptr ... */
+	    destval = fetch_data_word(destoffset);
+	    destval2 = fetch_data_word(destoffset + 2);
+	    TRACE_AND_STEP();
+	    M.x86.R_IP = destval;
+	    M.x86.R_CS = destval2;
+	    break;
+	case 6:		/*  push word ptr ... */
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 destval;
+
+		destval = fetch_data_long(destoffset);
+		TRACE_AND_STEP();
+		push_long(destval);
+	    } else {
+		u16 destval;
+
+		destval = fetch_data_word(destoffset);
+		TRACE_AND_STEP();
+		push_word(destval);
+	    }
+	    break;
+	}
+    } else {
+	switch (rh) {
+	case 0:
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 *destreg;
+
+		destreg = DECODE_RM_LONG_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = inc_long(*destreg);
+	    } else {
+		u16 *destreg;
+
+		destreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = inc_word(*destreg);
+	    }
+	    break;
+	case 1:
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 *destreg;
+
+		destreg = DECODE_RM_LONG_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = dec_long(*destreg);
+	    } else {
+		u16 *destreg;
+
+		destreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		*destreg = dec_word(*destreg);
+	    }
+	    break;
+	case 2:		/* call word ptr ... */
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    push_word(M.x86.R_IP);
+	    M.x86.R_IP = *destreg;
+	    break;
+	case 3:		/* jmp far ptr ... */
+	    DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+	    TRACE_AND_STEP();
+	    HALT_SYS();
+	    break;
+
+	case 4:		/* jmp	... */
+	    destreg = DECODE_RM_WORD_REGISTER(rl);
+	    DECODE_PRINTF("\n");
+	    TRACE_AND_STEP();
+	    M.x86.R_IP = (u16) (*destreg);
+	    break;
+	case 5:		/* jmp far ptr ... */
+	    DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+	    TRACE_AND_STEP();
+	    HALT_SYS();
+	    break;
+	case 6:
+	    if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+		u32 *destreg;
+
+		destreg = DECODE_RM_LONG_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		push_long(*destreg);
+	    } else {
+		u16 *destreg;
+
+		destreg = DECODE_RM_WORD_REGISTER(rl);
+		DECODE_PRINTF("\n");
+		TRACE_AND_STEP();
+		push_word(*destreg);
+	    }
+	    break;
+	}
+    }
+    DECODE_CLEAR_SEGOVR();
+    END_OF_INSTR();
+}
+
+/***************************************************************************
+ * Single byte operation code table:
+ **************************************************************************/
+void (*x86emu_optab[256])(u8) __attribute__ ((section(".got2"))) =
+{
+/*  0x00 */ x86emuOp_genop_byte_RM_R,
+/*  0x01 */ x86emuOp_genop_word_RM_R,
+/*  0x02 */ x86emuOp_genop_byte_R_RM,
+/*  0x03 */ x86emuOp_genop_word_R_RM,
+/*  0x04 */ x86emuOp_genop_byte_AL_IMM,
+/*  0x05 */ x86emuOp_genop_word_AX_IMM,
+/*  0x06 */ x86emuOp_push_ES,
+/*  0x07 */ x86emuOp_pop_ES,
+
+/*  0x08 */ x86emuOp_genop_byte_RM_R,
+/*  0x09 */ x86emuOp_genop_word_RM_R,
+/*  0x0a */ x86emuOp_genop_byte_R_RM,
+/*  0x0b */ x86emuOp_genop_word_R_RM,
+/*  0x0c */ x86emuOp_genop_byte_AL_IMM,
+/*  0x0d */ x86emuOp_genop_word_AX_IMM,
+/*  0x0e */ x86emuOp_push_CS,
+/*  0x0f */ x86emuOp_two_byte,
+
+/*  0x10 */ x86emuOp_genop_byte_RM_R,
+/*  0x11 */ x86emuOp_genop_word_RM_R,
+/*  0x12 */ x86emuOp_genop_byte_R_RM,
+/*  0x13 */ x86emuOp_genop_word_R_RM,
+/*  0x14 */ x86emuOp_genop_byte_AL_IMM,
+/*  0x15 */ x86emuOp_genop_word_AX_IMM,
+/*  0x16 */ x86emuOp_push_SS,
+/*  0x17 */ x86emuOp_pop_SS,
+
+/*  0x18 */ x86emuOp_genop_byte_RM_R,
+/*  0x19 */ x86emuOp_genop_word_RM_R,
+/*  0x1a */ x86emuOp_genop_byte_R_RM,
+/*  0x1b */ x86emuOp_genop_word_R_RM,
+/*  0x1c */ x86emuOp_genop_byte_AL_IMM,
+/*  0x1d */ x86emuOp_genop_word_AX_IMM,
+/*  0x1e */ x86emuOp_push_DS,
+/*  0x1f */ x86emuOp_pop_DS,
+
+/*  0x20 */ x86emuOp_genop_byte_RM_R,
+/*  0x21 */ x86emuOp_genop_word_RM_R,
+/*  0x22 */ x86emuOp_genop_byte_R_RM,
+/*  0x23 */ x86emuOp_genop_word_R_RM,
+/*  0x24 */ x86emuOp_genop_byte_AL_IMM,
+/*  0x25 */ x86emuOp_genop_word_AX_IMM,
+/*  0x26 */ x86emuOp_segovr_ES,
+/*  0x27 */ x86emuOp_daa,
+
+/*  0x28 */ x86emuOp_genop_byte_RM_R,
+/*  0x29 */ x86emuOp_genop_word_RM_R,
+/*  0x2a */ x86emuOp_genop_byte_R_RM,
+/*  0x2b */ x86emuOp_genop_word_R_RM,
+/*  0x2c */ x86emuOp_genop_byte_AL_IMM,
+/*  0x2d */ x86emuOp_genop_word_AX_IMM,
+/*  0x2e */ x86emuOp_segovr_CS,
+/*  0x2f */ x86emuOp_das,
+
+/*  0x30 */ x86emuOp_genop_byte_RM_R,
+/*  0x31 */ x86emuOp_genop_word_RM_R,
+/*  0x32 */ x86emuOp_genop_byte_R_RM,
+/*  0x33 */ x86emuOp_genop_word_R_RM,
+/*  0x34 */ x86emuOp_genop_byte_AL_IMM,
+/*  0x35 */ x86emuOp_genop_word_AX_IMM,
+/*  0x36 */ x86emuOp_segovr_SS,
+/*  0x37 */ x86emuOp_aaa,
+
+/*  0x38 */ x86emuOp_genop_byte_RM_R,
+/*  0x39 */ x86emuOp_genop_word_RM_R,
+/*  0x3a */ x86emuOp_genop_byte_R_RM,
+/*  0x3b */ x86emuOp_genop_word_R_RM,
+/*  0x3c */ x86emuOp_genop_byte_AL_IMM,
+/*  0x3d */ x86emuOp_genop_word_AX_IMM,
+/*  0x3e */ x86emuOp_segovr_DS,
+/*  0x3f */ x86emuOp_aas,
+
+/*  0x40 */ x86emuOp_inc_register,
+/*  0x41 */ x86emuOp_inc_register,
+/*  0x42 */ x86emuOp_inc_register,
+/*  0x43 */ x86emuOp_inc_register,
+/*  0x44 */ x86emuOp_inc_register,
+/*  0x45 */ x86emuOp_inc_register,
+/*  0x46 */ x86emuOp_inc_register,
+/*  0x47 */ x86emuOp_inc_register,
+
+/*  0x48 */ x86emuOp_dec_register,
+/*  0x49 */ x86emuOp_dec_register,
+/*  0x4a */ x86emuOp_dec_register,
+/*  0x4b */ x86emuOp_dec_register,
+/*  0x4c */ x86emuOp_dec_register,
+/*  0x4d */ x86emuOp_dec_register,
+/*  0x4e */ x86emuOp_dec_register,
+/*  0x4f */ x86emuOp_dec_register,
+
+/*  0x50 */ x86emuOp_push_register,
+/*  0x51 */ x86emuOp_push_register,
+/*  0x52 */ x86emuOp_push_register,
+/*  0x53 */ x86emuOp_push_register,
+/*  0x54 */ x86emuOp_push_register,
+/*  0x55 */ x86emuOp_push_register,
+/*  0x56 */ x86emuOp_push_register,
+/*  0x57 */ x86emuOp_push_register,
+
+/*  0x58 */ x86emuOp_pop_register,
+/*  0x59 */ x86emuOp_pop_register,
+/*  0x5a */ x86emuOp_pop_register,
+/*  0x5b */ x86emuOp_pop_register,
+/*  0x5c */ x86emuOp_pop_register,
+/*  0x5d */ x86emuOp_pop_register,
+/*  0x5e */ x86emuOp_pop_register,
+/*  0x5f */ x86emuOp_pop_register,
+
+/*  0x60 */ x86emuOp_push_all,
+/*  0x61 */ x86emuOp_pop_all,
+/*  0x62 */ x86emuOp_illegal_op,   /* bound */
+/*  0x63 */ x86emuOp_illegal_op,   /* arpl */
+/*  0x64 */ x86emuOp_segovr_FS,
+/*  0x65 */ x86emuOp_segovr_GS,
+/*  0x66 */ x86emuOp_prefix_data,
+/*  0x67 */ x86emuOp_prefix_addr,
+
+/*  0x68 */ x86emuOp_push_word_IMM,
+/*  0x69 */ x86emuOp_imul_word_IMM,
+/*  0x6a */ x86emuOp_push_byte_IMM,
+/*  0x6b */ x86emuOp_imul_byte_IMM,
+/*  0x6c */ x86emuOp_ins_byte,
+/*  0x6d */ x86emuOp_ins_word,
+/*  0x6e */ x86emuOp_outs_byte,
+/*  0x6f */ x86emuOp_outs_word,
+
+/*  0x70 */ x86emuOp_jump_near_cond,
+/*  0x71 */ x86emuOp_jump_near_cond,
+/*  0x72 */ x86emuOp_jump_near_cond,
+/*  0x73 */ x86emuOp_jump_near_cond,
+/*  0x74 */ x86emuOp_jump_near_cond,
+/*  0x75 */ x86emuOp_jump_near_cond,
+/*  0x76 */ x86emuOp_jump_near_cond,
+/*  0x77 */ x86emuOp_jump_near_cond,
+
+/*  0x78 */ x86emuOp_jump_near_cond,
+/*  0x79 */ x86emuOp_jump_near_cond,
+/*  0x7a */ x86emuOp_jump_near_cond,
+/*  0x7b */ x86emuOp_jump_near_cond,
+/*  0x7c */ x86emuOp_jump_near_cond,
+/*  0x7d */ x86emuOp_jump_near_cond,
+/*  0x7e */ x86emuOp_jump_near_cond,
+/*  0x7f */ x86emuOp_jump_near_cond,
+
+/*  0x80 */ x86emuOp_opc80_byte_RM_IMM,
+/*  0x81 */ x86emuOp_opc81_word_RM_IMM,
+/*  0x82 */ x86emuOp_opc82_byte_RM_IMM,
+/*  0x83 */ x86emuOp_opc83_word_RM_IMM,
+/*  0x84 */ x86emuOp_test_byte_RM_R,
+/*  0x85 */ x86emuOp_test_word_RM_R,
+/*  0x86 */ x86emuOp_xchg_byte_RM_R,
+/*  0x87 */ x86emuOp_xchg_word_RM_R,
+
+/*  0x88 */ x86emuOp_mov_byte_RM_R,
+/*  0x89 */ x86emuOp_mov_word_RM_R,
+/*  0x8a */ x86emuOp_mov_byte_R_RM,
+/*  0x8b */ x86emuOp_mov_word_R_RM,
+/*  0x8c */ x86emuOp_mov_word_RM_SR,
+/*  0x8d */ x86emuOp_lea_word_R_M,
+/*  0x8e */ x86emuOp_mov_word_SR_RM,
+/*  0x8f */ x86emuOp_pop_RM,
+
+/*  0x90 */ x86emuOp_nop,
+/*  0x91 */ x86emuOp_xchg_word_AX_register,
+/*  0x92 */ x86emuOp_xchg_word_AX_register,
+/*  0x93 */ x86emuOp_xchg_word_AX_register,
+/*  0x94 */ x86emuOp_xchg_word_AX_register,
+/*  0x95 */ x86emuOp_xchg_word_AX_register,
+/*  0x96 */ x86emuOp_xchg_word_AX_register,
+/*  0x97 */ x86emuOp_xchg_word_AX_register,
+
+/*  0x98 */ x86emuOp_cbw,
+/*  0x99 */ x86emuOp_cwd,
+/*  0x9a */ x86emuOp_call_far_IMM,
+/*  0x9b */ x86emuOp_wait,
+/*  0x9c */ x86emuOp_pushf_word,
+/*  0x9d */ x86emuOp_popf_word,
+/*  0x9e */ x86emuOp_sahf,
+/*  0x9f */ x86emuOp_lahf,
+
+/*  0xa0 */ x86emuOp_mov_AL_M_IMM,
+/*  0xa1 */ x86emuOp_mov_AX_M_IMM,
+/*  0xa2 */ x86emuOp_mov_M_AL_IMM,
+/*  0xa3 */ x86emuOp_mov_M_AX_IMM,
+/*  0xa4 */ x86emuOp_movs_byte,
+/*  0xa5 */ x86emuOp_movs_word,
+/*  0xa6 */ x86emuOp_cmps_byte,
+/*  0xa7 */ x86emuOp_cmps_word,
+/*  0xa8 */ x86emuOp_test_AL_IMM,
+/*  0xa9 */ x86emuOp_test_AX_IMM,
+/*  0xaa */ x86emuOp_stos_byte,
+/*  0xab */ x86emuOp_stos_word,
+/*  0xac */ x86emuOp_lods_byte,
+/*  0xad */ x86emuOp_lods_word,
+/*  0xac */ x86emuOp_scas_byte,
+/*  0xad */ x86emuOp_scas_word,
+
+/*  0xb0 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb1 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb2 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb3 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb4 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb5 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb6 */ x86emuOp_mov_byte_register_IMM,
+/*  0xb7 */ x86emuOp_mov_byte_register_IMM,
+
+/*  0xb8 */ x86emuOp_mov_word_register_IMM,
+/*  0xb9 */ x86emuOp_mov_word_register_IMM,
+/*  0xba */ x86emuOp_mov_word_register_IMM,
+/*  0xbb */ x86emuOp_mov_word_register_IMM,
+/*  0xbc */ x86emuOp_mov_word_register_IMM,
+/*  0xbd */ x86emuOp_mov_word_register_IMM,
+/*  0xbe */ x86emuOp_mov_word_register_IMM,
+/*  0xbf */ x86emuOp_mov_word_register_IMM,
+
+/*  0xc0 */ x86emuOp_opcC0_byte_RM_MEM,
+/*  0xc1 */ x86emuOp_opcC1_word_RM_MEM,
+/*  0xc2 */ x86emuOp_ret_near_IMM,
+/*  0xc3 */ x86emuOp_ret_near,
+/*  0xc4 */ x86emuOp_les_R_IMM,
+/*  0xc5 */ x86emuOp_lds_R_IMM,
+/*  0xc6 */ x86emuOp_mov_byte_RM_IMM,
+/*  0xc7 */ x86emuOp_mov_word_RM_IMM,
+/*  0xc8 */ x86emuOp_enter,
+/*  0xc9 */ x86emuOp_leave,
+/*  0xca */ x86emuOp_ret_far_IMM,
+/*  0xcb */ x86emuOp_ret_far,
+/*  0xcc */ x86emuOp_int3,
+/*  0xcd */ x86emuOp_int_IMM,
+/*  0xce */ x86emuOp_into,
+/*  0xcf */ x86emuOp_iret,
+
+/*  0xd0 */ x86emuOp_opcD0_byte_RM_1,
+/*  0xd1 */ x86emuOp_opcD1_word_RM_1,
+/*  0xd2 */ x86emuOp_opcD2_byte_RM_CL,
+/*  0xd3 */ x86emuOp_opcD3_word_RM_CL,
+/*  0xd4 */ x86emuOp_aam,
+/*  0xd5 */ x86emuOp_aad,
+/*  0xd6 */ x86emuOp_illegal_op,   /* Undocumented SETALC instruction */
+/*  0xd7 */ x86emuOp_xlat,
+/*  0xd8 */ NULL, /*x86emuOp_esc_coprocess_d8,*/
+/*  0xd9 */ NULL, /*x86emuOp_esc_coprocess_d9,*/
+/*  0xda */ NULL, /*x86emuOp_esc_coprocess_da,*/
+/*  0xdb */ NULL, /*x86emuOp_esc_coprocess_db,*/
+/*  0xdc */ NULL, /*x86emuOp_esc_coprocess_dc,*/
+/*  0xdd */ NULL, /*x86emuOp_esc_coprocess_dd,*/
+/*  0xde */ NULL, /*x86emuOp_esc_coprocess_de,*/
+/*  0xdf */ NULL, /*x86emuOp_esc_coprocess_df,*/
+
+/*  0xe0 */ x86emuOp_loopne,
+/*  0xe1 */ x86emuOp_loope,
+/*  0xe2 */ x86emuOp_loop,
+/*  0xe3 */ x86emuOp_jcxz,
+/*  0xe4 */ x86emuOp_in_byte_AL_IMM,
+/*  0xe5 */ x86emuOp_in_word_AX_IMM,
+/*  0xe6 */ x86emuOp_out_byte_IMM_AL,
+/*  0xe7 */ x86emuOp_out_word_IMM_AX,
+
+/*  0xe8 */ x86emuOp_call_near_IMM,
+/*  0xe9 */ x86emuOp_jump_near_IMM,
+/*  0xea */ x86emuOp_jump_far_IMM,
+/*  0xeb */ x86emuOp_jump_byte_IMM,
+/*  0xec */ x86emuOp_in_byte_AL_DX,
+/*  0xed */ x86emuOp_in_word_AX_DX,
+/*  0xee */ x86emuOp_out_byte_DX_AL,
+/*  0xef */ x86emuOp_out_word_DX_AX,
+
+/*  0xf0 */ x86emuOp_lock,
+/*  0xf1 */ x86emuOp_illegal_op,
+/*  0xf2 */ x86emuOp_repne,
+/*  0xf3 */ x86emuOp_repe,
+/*  0xf4 */ x86emuOp_halt,
+/*  0xf5 */ x86emuOp_cmc,
+/*  0xf6 */ x86emuOp_opcF6_byte_RM,
+/*  0xf7 */ x86emuOp_opcF7_word_RM,
+
+/*  0xf8 */ x86emuOp_clc,
+/*  0xf9 */ x86emuOp_stc,
+/*  0xfa */ x86emuOp_cli,
+/*  0xfb */ x86emuOp_sti,
+/*  0xfc */ x86emuOp_cld,
+/*  0xfd */ x86emuOp_std,
+/*  0xfe */ x86emuOp_opcFE_byte_RM,
+/*  0xff */ x86emuOp_opcFF_word_RM,
+};
+
+#endif