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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/v86bios/x86emu.c')
-rw-r--r--board/MAI/bios_emulator/scitech/src/v86bios/x86emu.c316
1 files changed, 0 insertions, 316 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/v86bios/x86emu.c b/board/MAI/bios_emulator/scitech/src/v86bios/x86emu.c
deleted file mode 100644
index b5c99d7a7..000000000
--- a/board/MAI/bios_emulator/scitech/src/v86bios/x86emu.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright 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.
- */
-#include "debug.h"
-
-#define IF_MASK 0x00000200
-#define VIF_MASK 0x00080000 /* virtual interrupt flag */
-#define VIP_MASK 0x00100000 /* virtual interrupt pending */
-
-#include </usr/include/unistd.h>
-#include <errno.h>
-#include <asm/unistd.h>
-/*#include <syscall-list.h> */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#ifdef __alpha__
-#include <sys/io.h>
-#endif
-#include <signal.h>
-#include <setjmp.h>
-#include "AsmMacros.h"
-#include "v86bios.h"
-# define DEBUG
-#include "x86emu.h"
-#undef DEBUG
-
-#define M _X86EMU_env
-#define CPU_REG(reg) M.x86.R_##reg
-
-struct pio P;
-
-void
-setup_io(void)
-{
- if (!Config.PrintPort && !Config.IoStatistics) {
-
-#if defined (__i386__)
- P.inb = (u8(*)(u16))inb;
- P.inw = (u16(*)(u16))inw;
- P.outb = (void(*)(u16,u8))outb;
- P.outw = (void(*)(u16,u16))outw;
-#else
- P.inb = p_inb;
- P.inw = p_inw;
- P.outb = p_outb;
- P.outw = p_outw;
-#endif
-#if defined (__i386__) && ! defined(NEED_PCI_IO)
- P.inl = (u32(*)(u16))inl;
- P.outl = (void(*)(u16,u32))outl;
-#else
- P.inl = p_inl;
- P.outl = p_outl;
-#endif
- } else {
- P.inb = p_inb;
- P.inw = p_inw;
- P.inl = p_inl;
- P.outb = p_outb;
- P.outw = p_outw;
- P.outl = p_outl;
- }
-}
-
-void
-x86emu_do_int(int num)
-{
- struct regs86 regs;
-
- i_printf("int 0x%x received: ax:0x%x",num,CPU_REG(AX));
- if (Config.PrintIp)
- i_printf(" at: 0x%x\n",getIP());
- else
- i_printf("\n");
-
- /* try to run bios interrupt */
-
- /* if not installed fall back */
-#define COPY(x,y) regs.y = M.x86.x
-#define COPY_R(x,y) M.x86.x = regs.y
-
- COPY(R_EAX,eax);
- COPY(R_EBX,ebx);
- COPY(R_ECX,ecx);
- COPY(R_EDX,edx);
- COPY(R_ESI,esi);
- COPY(R_EDI,edi);
- COPY(R_EBP,ebp);
- COPY(R_EIP,eip);
- COPY(R_ESP,esp);
- COPY(R_CS,cs);
- COPY(R_SS,ss);
- COPY(R_DS,ds);
- COPY(R_ES,es);
- COPY(R_FS,fs);
- COPY(R_GS,gs);
- COPY(R_EFLG,eflags);
-
- if (!(int_handler(num,&regs))) {
- if (!run_bios_int(num,&regs))
- goto unknown_int;
- else
- return;
- }
-
- COPY_R(R_EAX,eax);
- COPY_R(R_EBX,ebx);
- COPY_R(R_ECX,ecx);
- COPY_R(R_EDX,edx);
- COPY_R(R_ESI,esi);
- COPY_R(R_EDI,edi);
- COPY_R(R_EBP,ebp);
- COPY_R(R_EIP,eip);
- COPY_R(R_ESP,esp);
- COPY_R(R_CS,cs);
- COPY_R(R_SS,ss);
- COPY_R(R_DS,ds);
- COPY_R(R_ES,es);
- COPY_R(R_FS,fs);
- COPY_R(R_GS,gs);
- COPY_R(R_EFLG,eflags);
- return;
-
- unknown_int:
- fprintf(stderr,"\nUnknown vm86_int: %X\n\n",num);
- X86EMU_halt_sys();
- return;
-
-#undef COPY
-#undef COPY_R
-}
-
-void
-setup_x86emu(unsigned long bios_start, i86biosRegsPtr regs)
-{
- int i;
- CARD32 eip;
- CARD16 cs;
- X86EMU_intrFuncs intFuncs[256];
-
- X86EMU_pioFuncs pioFuncs = {
- (u8(*)(u16))P.inb,
- (u16(*)(u16))P.inw,
- (u32(*)(u16))P.inl,
- (void(*)(u16,u8))P.outb,
- (void(*)(u16,u16))P.outw,
- (void(*)(u16,u32))P.outl
- };
-#ifdef __alpha__
- X86EMU_memFuncs memFuncs = {
- (u8(*)(u32))mem_rb,
- (u16(*)(u32))mem_rw,
- (u32(*)(u32))mem_rl,
- (void(*)(u32,u8))mem_wb,
- (void(*)(u32,u16))mem_ww,
- (void(*)(u32,u32))mem_wl
- };
-#endif
- M.mem_base = 0;
- M.mem_size = 1024*1024 + 1024;
- /* M.x86.debug = DEBUG_DISASSEMBLE_F | DEBUG_TRACE_F | DEBUG_DECODE_F; */
- /* M.x86.debug |= DEBUG_DECODE_F | DEBUG_TRACE_F; */
-/*
- * For single step tracing compile x86emu with option -DDEBUG
- */
- M.x86.debug = 0;
- if (Config.PrintIp)
- M.x86.debug = DEBUG_SAVE_CS_IP;
-
- if (Config.Trace)
- X86EMU_trace_on();
-
- X86EMU_setupPioFuncs(&pioFuncs);
-#ifdef __alpha__
- X86EMU_setupMemFuncs(&memFuncs);
-#endif
- for (i=0;i<256;i++)
- intFuncs[i] = x86emu_do_int;
- X86EMU_setupIntrFuncs(intFuncs);
-
- eip = bios_start & 0xFFFF;
- cs = (bios_start & 0xFF0000) >> 4;
-
- CPU_REG(EAX) = regs->ax;
- CPU_REG(EBX) = regs->bx;
- CPU_REG(ECX) = regs->cx;
- CPU_REG(EDX) = regs->dx;
- CPU_REG(ESI) = regs->si;
- CPU_REG(EDI) = regs->di;
- CPU_REG(EBP) = 0;
- CPU_REG(EIP) = eip;
- CPU_REG(CS) = cs;
- CPU_REG(SP) = 0x100;
- CPU_REG(SS) = 0x30; /* This is the standard pc bios stack */
- CPU_REG(ES) = regs->es;
- CPU_REG(DS) = regs->ds;
- CPU_REG(FS) = 0;
- CPU_REG(GS) = 0;
- CPU_REG(EFLG) |= (VIF_MASK | VIP_MASK | IF_MASK | 0x2);
-}
-
-void
-collect_bios_regs(i86biosRegsPtr regs)
-{
- regs->ax = CPU_REG(EAX);
- regs->bx = CPU_REG(EBX);
- regs->cx = CPU_REG(ECX);
- regs->dx = CPU_REG(EDX);
- regs->es = CPU_REG(ES);
- regs->ds = CPU_REG(DS);
- regs->di = CPU_REG(EDI);
- regs->si = CPU_REG(ESI);
-}
-
-static void
-do_x86emu(void)
-{
- X86EMU_exec();
-}
-
-static jmp_buf x86_esc;
-static void
-vmexit(int unused)
-{
- longjmp(x86_esc,1);
-}
-
-void
-do_x86(unsigned long bios_start, i86biosRegsPtr regs)
-{
- static void (*org_handler)(int);
-
- setup_x86emu(bios_start,regs);
- if (setjmp(x86_esc) == 0) {
- org_handler = signal(2,vmexit);
- do_x86emu();
- signal(2,org_handler);
- collect_bios_regs(regs);
- } else {
- signal(2,org_handler);
- printf("interrupted at 0x%x\n",((CARD16)CPU_REG(CS)) << 4
- | (CARD16)CPU_REG(EIP));
- }
-}
-
-int
-run_bios_int(int num, struct regs86 *regs)
-{
-#ifdef V86BIOS_DEBUG
- static int firsttime = 1;
-#endif
- /* check if bios vector is initialized */
- if (((CARD16*)0)[(num<<1)+1] == 0x0000) { /* SYS_BIOS_SEG ?*/
-#ifdef V86BIOS_DEBUG
- i_printf("card BIOS not loaded\n");
-#endif
- return 0;
- }
-
-#ifdef V86BIOS_DEBUG
- if (firsttime) {
- dprint(0,0x3D0);
- firsttime = 0;
- }
-#endif
-
- i_printf("calling card BIOS at: ");
- i_printf("0x%x:%x\n",((CARD16 *) 0)[(num << 1) + 1],
- (CARD32)((CARD16 *) 0)[num << 1]);
- X86EMU_prepareForInt(num);
-
- return 1;
-}
-
-CARD32
-getIntVect(int num)
-{
- return ((CARD32*)0)[num];
-}
-#if 0
-void
-printk(const char *fmt, ...)
-{
- va_list argptr;
- va_start(argptr, fmt);
- vfprintf(stdout, fmt, argptr);
- fflush(stdout);
- va_end(argptr);
-}
-#endif
-
-CARD32
-getIP(void)
-{
- return (M.x86.saved_cs << 4) + M.x86.saved_ip;
-}
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