diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/x86emu/fpu.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/x86emu/fpu.c | 945 |
1 files changed, 0 insertions, 945 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/x86emu/fpu.c b/board/MAI/bios_emulator/scitech/src/x86emu/fpu.c deleted file mode 100644 index 7f7c345b3..000000000 --- a/board/MAI/bios_emulator/scitech/src/x86emu/fpu.c +++ /dev/null @@ -1,945 +0,0 @@ -/**************************************************************************** -* -* Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 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 contains the code to implement the decoding and -* emulation of the FPU instructions. -* -****************************************************************************/ - -#include "x86emu/x86emui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/* opcode=0xd8 */ -void x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1)) -{ - START_OF_INSTR(); - DECODE_PRINTF("ESC D8\n"); - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_d9_tab[] = { - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", - - "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ", - "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t", -}; - -static char *x86emu_fpu_op_d9_tab1[] = { - "FLD\t", "FLD\t", "FLD\t", "FLD\t", - "FLD\t", "FLD\t", "FLD\t", "FLD\t", - - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t", - - "FNOP", "ESC_D9", "ESC_D9", "ESC_D9", - "ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9", - - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t", - - "FCHS", "FABS", "ESC_D9", "ESC_D9", - "FTST", "FXAM", "ESC_D9", "ESC_D9", - - "FLD1", "FLDL2T", "FLDL2E", "FLDPI", - "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9", - - "F2XM1", "FYL2X", "FPTAN", "FPATAN", - "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP", - - "FPREM", "FYL2XP1", "FSQRT", "ESC_D9", - "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9", -}; - -#endif /* DEBUG */ - -/* opcode=0xd9 */ -void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl); - } else { - DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]); - } -#endif - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - if (rh < 4) { - DECODE_PRINTF2("ST(%d)\n", stkelem); - } else { - DECODE_PRINTF("\n"); - } - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem); - break; - case 1: - x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem); - break; - case 2: - switch (rl) { - case 0: - x86emu_fpu_R_nop(); - break; - default: - x86emu_fpu_illegal(); - break; - } - case 3: - x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem); - break; - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP); - break; - default: - /* 2,3,6,7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 5: - switch (rl) { - case 0: - x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP); - break; - default: - /* 7 */ - x86emu_fpu_illegal(); - break; - } - break; - - case 6: - switch (rl) { - case 0: - x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_R_decstp(); - break; - case 7: - x86emu_fpu_R_incstp(); - break; - } - break; - - case 7: - switch (rl) { - case 0: - x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP); - break; - case 6: - case 7: - default: - x86emu_fpu_illegal(); - break; - } - break; - - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset); - break; - case 4: - x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset); - break; - } - } - } -#endif /* X86EMU_FPU_PRESENT */ - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -char *x86emu_fpu_op_da_tab[] = { - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ", - "FICOMP\tDWORD PTR ", - "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ", - "FIDIVR\tDWORD PTR ", - - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", - "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ", -}; - -#endif /* DEBUG */ - -/* opcode=0xda */ -void x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - x86emu_fpu_illegal(); - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset); - break; - case 2: - x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset); - break; - case 5: - x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset); - break; - case 6: - x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset); - break; - case 7: - x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -char *x86emu_fpu_op_db_tab[] = { - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", - - "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ", - "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ", -}; - -#endif /* DEBUG */ - -/* opcode=0xdb */ -void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); -#ifdef DEBUG - if (mod != 3) { - DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl); - } else if (rh == 4) { /* === 11 10 0 nnn */ - switch (rl) { - case 0: - DECODE_PRINTF("FENI\n"); - break; - case 1: - DECODE_PRINTF("FDISI\n"); - break; - case 2: - DECODE_PRINTF("FCLEX\n"); - break; - case 3: - DECODE_PRINTF("FINIT\n"); - break; - } - } else { - DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl)); - } -#endif /* DEBUG */ - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - break; - case 1: - destoffset = decode_rm01_address(rl); - break; - case 2: - destoffset = decode_rm10_address(rl); - break; - case 3: /* register to register */ - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 4: - switch (rl) { - case 0: - x86emu_fpu_R_feni(); - break; - case 1: - x86emu_fpu_R_fdisi(); - break; - case 2: - x86emu_fpu_R_fclex(); - break; - case 3: - x86emu_fpu_R_finit(); - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset); - break; - case 4: - x86emu_fpu_illegal(); - break; - case 5: - x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset); - break; - case 6: - x86emu_fpu_illegal(); - break; - case 7: - x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG -char *x86emu_fpu_op_dc_tab[] = { - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ", - "FCOMP\tQWORD PTR ", - "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ", - "FDIVR\tQWORD PTR ", - - "FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t", - "FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t", -}; -#endif /* DEBUG */ - -/* opcode=0xdc */ -void x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - /* execute */ - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 4: - x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset); - break; - case 2: - x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset); - break; - case 5: - x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset); - break; - case 6: - x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset); - break; - case 7: - x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_dd_tab[] = { - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ", - "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t", - - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,", -}; - -#endif /* DEBUG */ - -/* opcode=0xdd */ -void x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset); - break; - case 3: - x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset); - break; - case 4: - x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_illegal(); - break; - case 6: - x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_de_tab[] = -{ - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ", - "FICOMP\tWORD PTR ", - "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ", - "FIDIVR\tWORD PTR ", - - "FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t", - "FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t", -}; - -#endif /* DEBUG */ - -/* opcode=0xde */ -void x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d),ST\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP); - break; - case 1: - x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP); - break; - case 2: - x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP); - break; - case 3: - if (stkelem == 1) - x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP); - else - x86emu_fpu_illegal(); - break; - case 4: - x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 5: - x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP); - break; - case 6: - x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP); - break; - case 7: - x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset); - break; - case 2: - x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset); - break; - case 5: - x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset); - break; - case 6: - x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset); - break; - case 7: - x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} - -#ifdef DEBUG - -static char *x86emu_fpu_op_df_tab[] = { - /* mod == 00 */ - "FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 01 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 10 */ - "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ", - "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ", - "FISTP\tQWORD PTR ", - - /* mod == 11 */ - "FFREE\t", "FXCH\t", "FST\t", "FSTP\t", - "ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F," -}; - -#endif /* DEBUG */ - -/* opcode=0xdf */ -void x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1)) -{ - int mod, rl, rh; - uint destoffset; - u8 stkelem; - - START_OF_INSTR(); - FETCH_DECODE_MODRM(mod, rh, rl); - DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl); - switch (mod) { - case 0: - destoffset = decode_rm00_address(rl); - DECODE_PRINTF("\n"); - break; - case 1: - destoffset = decode_rm01_address(rl); - DECODE_PRINTF("\n"); - break; - case 2: - destoffset = decode_rm10_address(rl); - DECODE_PRINTF("\n"); - break; - case 3: /* register to register */ - stkelem = (u8)rl; - DECODE_PRINTF2("\tST(%d)\n", stkelem); - break; - } -#ifdef X86EMU_FPU_PRESENT - switch (mod) { - case 3: - switch (rh) { - case 0: - x86emu_fpu_R_ffree(stkelem); - break; - case 1: - x86emu_fpu_R_fxch(stkelem); - break; - case 2: - x86emu_fpu_R_fst(stkelem); /* register version */ - break; - case 3: - x86emu_fpu_R_fstp(stkelem); /* register version */ - break; - default: - x86emu_fpu_illegal(); - break; - } - break; - default: - switch (rh) { - case 0: - x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset); - break; - case 1: - x86emu_fpu_illegal(); - break; - case 2: - x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset); - break; - case 3: - x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset); - break; - case 4: - x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset); - break; - case 5: - x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset); - break; - case 6: - x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset); - break; - case 7: - x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset); - break; - } - } -#endif - DECODE_CLEAR_SEGOVR(); - END_OF_INSTR_NO_TRACE(); -} |