aboutsummaryrefslogtreecommitdiff
path: root/board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c')
-rw-r--r--board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c933
1 files changed, 0 insertions, 933 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c b/board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c
deleted file mode 100644
index 101c1f26e64..00000000000
--- a/board/MAI/bios_emulator/scitech/src/v86bios/v86bios.c
+++ /dev/null
@@ -1,933 +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.
- */
-#define DELETE
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <string.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <sys/stat.h>
-#include <readline/readline.h>
-#include <readline/history.h>
-#if defined(__alpha__) || defined (__ia64__)
-#include <sys/io.h>
-#elif defined(HAVE_SYS_PERM)
-#include <sys/perm.h>
-#endif
-#include "debug.h"
-#include "v86bios.h"
-#include "pci.h"
-#include "AsmMacros.h"
-
-#define SIZE 0x100000
-#define VRAM_START 0xA0000
-#define VRAM_SIZE 0x1FFFF
-#define V_BIOS_SIZE 0x1FFFF
-#define BIOS_START 0x7C00 /* default BIOS entry */
-#define BIOS_MEM 0x600
-
-/*CARD8 code[] = { 0xb8 , 0xf0 , 0xf0, 0xf4 }; */
-#define VB_X(x) (V_BIOS >> x) & 0xFF
-CARD8 code[] = { 6, 0x9a, 0x03, 0x00, 0x00, VB_X(12), 0xf4 };
-/*CARD8 code[] = { 0x9a, 0x03, 0x00, 0x00, VB_X(12), 0xb8, 0x03, 0x00, */
-/*0xcd, 0x10, 0xf4 }; */
-/*CARD8 code[] = { 0xb8 , 0xf0 , 0xf0 ,0xf4 }; */
-
-int ioperm_list[IOPERM_BITS] = {0,};
-
-static void sig_handler(int);
-static int map(void);
-static void unmap(void);
-static void bootBIOS(CARD16 ax);
-static int map_vram(void);
-static void unmap_vram(void);
-static int copy_vbios(memType v_base);
-static int copy_sys_bios(void);
-static void save_bios_to_file(void);
-static int setup_system_bios(void);
-static CARD32 setup_int_vect(void);
-#ifdef __ia32__
-static CARD32 setup_primary_int_vect(void);
-#endif
-static int chksum(CARD8 *start);
-static void setup_bios_regs(i86biosRegsPtr regs, CARD32 ax);
-static void print_regs(i86biosRegsPtr regs);
-static void print_usage(void);
-static void set_hlt(Bool set);
-static void set_ioperm(void);
-
-extern void yyparse();
-
-void loadCodeToMem(unsigned char *ptr, CARD8 *code);
-void dprint(unsigned long start, unsigned long size);
-
-static int vram_mapped = 0;
-static char* bios_var = NULL;
-static CARD8 save_msr;
-static CARD8 save_pos102;
-static CARD8 save_vse;
-static CARD8 save_46e8;
-static haltpoints hltp[20] = { {0, 0}, };
-
-console Console = {-1,-1};
-struct config Config;
-
-int main(int argc,char **argv)
-{
- int c;
-
- Config.PrintPort = PRINT_PORT;
- Config.IoStatistics = IO_STATISTICS;
- Config.PrintIrq = PRINT_IRQ;
- Config.PrintPci = PRINT_PCI;
- Config.ShowAllDev = SHOW_ALL_DEV;
- Config.PrintIp = PRINT_IP;
- Config.SaveBios = SAVE_BIOS;
- Config.Trace = TRACE;
- Config.ConfigActiveOnly = CONFIG_ACTIVE_ONLY; /* boot */
- Config.ConfigActiveDevice = CONFIG_ACTIVE_DEVICE; /* boot */
- Config.MapSysBios = MAP_SYS_BIOS;
- Config.Resort = RESORT; /* boot */
- Config.FixRom = FIX_ROM;
- Config.NoConsole = NO_CONSOLE;
- Config.BootOnly = FALSE;
- Config.Verbose = VERBOSE;
-
- opterr = 0;
- while ((c = getopt(argc,argv,"psicaPStAdbrfnv:?")) != EOF) {
- switch(c) {
- case 'p':
- Config.PrintPort = TRUE;
- break;
- case 's':
- Config.IoStatistics = TRUE;
- break;
- case 'i':
- Config.PrintIrq = TRUE;
- break;
- case 'c':
- Config.PrintPci = TRUE;
- break;
- case 'a':
- Config.ShowAllDev = TRUE;
- break;
- case 'P':
- Config.PrintIp = TRUE;
- break;
- case 'S':
- Config.SaveBios = TRUE;
- break;
- case 't':
- Config.Trace = TRUE;
- break;
- case 'A':
- Config.ConfigActiveOnly = TRUE;
- break;
- case 'd':
- Config.ConfigActiveDevice = TRUE;
- break;
- case 'b':
- Config.MapSysBios = TRUE;
- break;
- case 'r':
- Config.Resort = TRUE;
- break;
- case 'f':
- Config.FixRom = TRUE;
- break;
- case 'n':
- Config.NoConsole = TRUE;
- break;
- case 'v':
- Config.Verbose = strtol(optarg,NULL,0);
- break;
- case '?':
- print_usage();
- break;
- default:
- break;
- }
- }
-
-
- if (!map())
- exit(1);
-
- if (!setup_system_bios())
- exit(1);
-
- iopl(3);
-
- scan_pci();
-
- save_msr = inb(0x3CC);
- save_vse = inb(0x3C3);
- save_46e8 = inb(0x46e8);
- save_pos102 = inb(0x102);
-
- if (Config.BootOnly) {
-
- if (!CurrentPci && !Config.ConfigActiveDevice
- && !Config.ConfigActiveOnly) {
- iopl(0);
- unmap();
- exit (1);
- }
- call_boot(NULL);
- } else {
- using_history();
- yyparse();
- }
-
- unmap();
-
- pciVideoRestore();
-
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
-
- iopl(0);
-
- close_console(Console);
-
- exit(0);
-}
-
-
-void
-call_boot(struct device *dev)
-{
- int Active_is_Pci = 0;
- CARD32 vbios_base;
-
- CurrentPci = PciList;
- Console = open_console();
-
- set_ioperm();
-
-
- signal(2,sig_handler);
- signal(11,sig_handler);
-
- /* disable primary card */
- pciVideoRestore(); /* reset PCI state to see primary card */
- outb(0x3C2,~(CARD8)0x03 & save_msr);
- outb(0x3C3,~(CARD8)0x01 & save_vse);
- outb(0x46e8, ~(CARD8)0x08 & save_46e8);
- outb(0x102, ~(CARD8)0x01 & save_pos102);
-
- pciVideoDisable();
-
- while (CurrentPci) {
- CARD16 ax;
-
- if (CurrentPci->active) {
- Active_is_Pci = 1;
- if (!Config.ConfigActiveDevice && !dev) {
- CurrentPci = CurrentPci->next;
- continue;
- }
- } else if (Config.ConfigActiveOnly && !dev) {
- CurrentPci = CurrentPci->next;
- continue;
- }
- if (dev && ((dev->type != PCI)
- || (dev->type == PCI
- && (dev->loc.pci.dev != CurrentPci->dev
- || dev->loc.pci.bus != CurrentPci->bus
- || dev->loc.pci.func != CurrentPci->func)))) {
- CurrentPci = CurrentPci->next;
- continue;
- }
-
- EnableCurrent();
-
- if (CurrentPci->active) {
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
- }
-
- /* clear interrupt vectors */
-#ifdef __ia32__
- vbios_base = CurrentPci->active ? setup_primary_int_vect()
- : setup_int_vect();
-#else
- vbios_base = setup_int_vect();
-#endif
- ax = ((CARD16)(CurrentPci->bus) << 8)
- | (CurrentPci->dev << 3) | (CurrentPci->func & 0x7);
- if (Config.Verbose > 1) P_printf("ax: 0x%x\n",ax);
-
- BootBios = findPciByIDs(CurrentPci->bus,CurrentPci->dev,
- CurrentPci->func);
- if (!((mapPciRom(BootBios) && chksum((CARD8*)V_BIOS))
- || (CurrentPci->active && copy_vbios(vbios_base)))) {
- CurrentPci = CurrentPci->next;
- continue;
- }
- if (!map_vram()) {
- CurrentPci = CurrentPci->next;
- continue;
- }
- if (Config.SaveBios) save_bios_to_file();
- printf("initializing PCI bus: %i dev: %i func: %i\n",CurrentPci->bus,
- CurrentPci->dev,CurrentPci->func);
- bootBIOS(ax);
- unmap_vram();
-
- if (CurrentPci->active)
- close_console(Console);
-
- if (dev) return;
-
- CurrentPci = CurrentPci->next;
- }
-
- /* We have an ISA device - configure if requested */
- if (!Active_is_Pci /* no isa card in system! */
- && ((!dev && (Config.ConfigActiveDevice || Config.ConfigActiveOnly))
- || (dev && dev->type == ISA))) {
-
- pciVideoDisable();
-
- if (!dev || dev->type == ISA) {
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
-
-#ifdef __ia32__
- vbios_base = setup_primary_int_vect();
-#else
- vbios_base = setup_int_vect();
-#endif
- if (copy_vbios(vbios_base)) {
-
- if (Config.SaveBios) save_bios_to_file();
- if (map_vram()) {
- printf("initializing ISA bus\n");
- bootBIOS(0);
- }
- }
-
- unmap_vram();
- sleep(1);
- close_console(Console);
- }
- }
-
-
-}
-
-int
-map(void)
-{
- void* mem;
- mem = mmap(0, (size_t)SIZE,
- PROT_EXEC | PROT_READ | PROT_WRITE,
- MAP_FIXED | MAP_PRIVATE | MAP_ANON,
- -1, 0 );
- if (mem != 0) {
- perror("anonymous map");
- return (0);
- }
- memset(mem,0,SIZE);
-
- return (1);
-}
-
-static void
-unmap(void)
-{
- munmap(0,SIZE);
-}
-
-static void
-bootBIOS(CARD16 ax)
-{
- i86biosRegs bRegs;
-#ifdef V86BIOS_DEBUG
- printf("starting BIOS\n");
-#endif
- setup_io();
- setup_bios_regs(&bRegs, ax);
- loadCodeToMem((unsigned char *) BIOS_START, code);
- do_x86(BIOS_START,&bRegs);
-#ifdef V86BIOS_DEBUG
- printf("done\n");
-#endif
-}
-
-static int
-map_vram(void)
-{
- int mem_fd;
-
-#ifdef __ia64__
- if ((mem_fd = open(MEM_FILE,O_RDWR | O_SYNC))<0)
-#else
- if ((mem_fd = open(MEM_FILE,O_RDWR))<0)
-#endif
- {
- perror("opening memory");
- return 0;
- }
-
-#ifdef __alpha__
- if (!_bus_base()) sparse_shift = 7; /* Uh, oh, JENSEN... */
- if (!_bus_base_sparse()) sparse_shift = 0;
- if ((vram_map = mmap(0,(size_t) (VRAM_SIZE << sparse_shift),
- PROT_READ | PROT_WRITE,
- MAP_SHARED,
- mem_fd, (VRAM_START << sparse_shift)
- | _bus_base_sparse())) == (void *) -1)
-#else
- if (mmap((void *) VRAM_START, (size_t) VRAM_SIZE,
- PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED,
- mem_fd, VRAM_START) == (void *) -1)
-#endif
- {
- perror("mmap error in map_hardware_ram (1)");
- close(mem_fd);
- return (0);
- }
- vram_mapped = 1;
- close(mem_fd);
- return (1);
-}
-
-static void
-unmap_vram(void)
-{
- if (!vram_mapped) return;
-
- munmap((void*)VRAM_START,VRAM_SIZE);
- vram_mapped = 0;
-}
-
-static int
-copy_vbios(memType v_base)
-{
- int mem_fd;
- unsigned char *tmp;
- int size;
-
- if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) {
- perror("opening memory");
- return (0);
- }
-
- if (lseek(mem_fd,(off_t) v_base, SEEK_SET) != (off_t) v_base) {
- fprintf(stderr,"Cannot lseek\n");
- goto Error;
- }
- tmp = (unsigned char *)malloc(3);
- if (read(mem_fd, (char *)tmp, (size_t) 3) != (size_t) 3) {
- fprintf(stderr,"Cannot read\n");
- goto Error;
- }
- if (lseek(mem_fd,(off_t) v_base,SEEK_SET) != (off_t) v_base)
- goto Error;
-
- if (*tmp != 0x55 || *(tmp+1) != 0xAA ) {
- fprintf(stderr,"No bios found at: 0x%lx\n",v_base);
- goto Error;
- }
-#ifdef DEBUG
- dprint((unsigned long)tmp,0x100);
-#endif
- size = *(tmp+2) * 512;
-
- if (read(mem_fd, (char *)v_base, (size_t) size) != (size_t) size) {
- fprintf(stderr,"Cannot read\n");
- goto Error;
- }
- free(tmp);
- close(mem_fd);
- if (!chksum((CARD8*)v_base))
- return (0);
-
- return (1);
-
-Error:
- perror("v_bios");
- close(mem_fd);
- return (0);
-}
-
-static int
-copy_sys_bios(void)
-{
-#define SYS_BIOS 0xF0000
- int mem_fd;
-
- if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) {
- perror("opening memory");
- return (0);
- }
-
- if (lseek(mem_fd,(off_t) SYS_BIOS,SEEK_SET) != (off_t) SYS_BIOS)
- goto Error;
- if (read(mem_fd, (char *)SYS_BIOS, (size_t) 0xFFFF) != (size_t) 0xFFFF)
- goto Error;
-
- close(mem_fd);
- return (1);
-
-Error:
- perror("sys_bios");
- close(mem_fd);
- return (0);
-}
-
-void
-loadCodeToMem(unsigned char *ptr, CARD8 code[])
-{
- int i;
- CARD8 val;
- int size = code[0];
-
- for ( i=1;i<=size;i++) {
- val = code[i];
- *ptr++ = val;
- }
- return;
-}
-
-void
-dprint(unsigned long start, unsigned long size)
-{
- int i,j;
- char *c = (char *)start;
-
- for (j = 0; j < (size >> 4); j++) {
- char *d = c;
- printf("\n0x%lx: ",(unsigned long)c);
- for (i = 0; i<16; i++)
- printf("%2.2x ",(unsigned char) (*(c++)));
- c = d;
- for (i = 0; i<16; i++) {
- printf("%c",((((CARD8)(*c)) > 32) && (((CARD8)(*c)) < 128)) ?
- (unsigned char) (*(c)): '.');
- c++;
- }
- }
- printf("\n");
-}
-
-static void
-save_bios_to_file(void)
-{
- static int num = 0;
- int size, count;
- char file_name[256];
- int fd;
-
- sprintf(file_name,"bios_%i.fil",num);
- if ((fd = open(file_name,O_WRONLY | O_CREAT | O_TRUNC,00644)) == -1)
- return;
- size = (*(unsigned char*)(V_BIOS + 2)) * 512;
-#ifdef V86BIOS_DEBUG
- dprint(V_BIOS,20);
-#endif
- if ((count = write(fd,(void *)(V_BIOS),size)) != size)
- fprintf(stderr,"only saved %i of %i bytes\n",size,count);
- num++;
-}
-
-static void
-sig_handler(int unused)
-{
- fflush(stdout);
- fflush(stderr);
-
- /* put system back in a save state */
- unmap_vram();
- pciVideoRestore();
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
-
- close_console(Console);
- iopl(0);
- unmap();
-
- exit(1);
-}
-
-/*
- * For initialization we just pass ax to the BIOS.
- * PCI BIOSes need this. All other register are set 0.
- */
-static void setup_bios_regs(i86biosRegsPtr regs, CARD32 ax)
-{
- regs->ax = ax;
- regs->bx = 0;
- regs->cx = 0;
- regs->dx = 0;
- regs->es = 0;
- regs->ds = 0x40; /* standard pc ds */
- regs->si = 0;
- regs->di = 0;
-}
-
-/*
- * here we are really paranoid about faking a "real"
- * BIOS. Most of this information was pulled from
- * dosem.
- */
-
-#ifdef __ia32__
-static CARD32
-setup_primary_int_vect(void)
-{
- int mem_fd;
- CARD32 vbase;
- void *map;
-
- if ((mem_fd = open(MEM_FILE,O_RDWR))<0)
- {
- perror("opening memory");
- return (0);
- }
-
- if ((map = mmap((void *) 0, (size_t) 0x2000,
- PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED,
- mem_fd, 0)) == (void *)-1) {
- perror("mmap error in map_hardware_ram (2)");
- close(mem_fd);
- return (0);
- }
-
- close(mem_fd);
- memcpy(0,map,BIOS_MEM);
- munmap(map,0x2000);
- /*
- * create a backup copy of the bios variables to write back the
- * modified values
- */
- if (!bios_var)
- bios_var = (char *)malloc(BIOS_MEM);
- memcpy(bios_var,0,BIOS_MEM);
-
- vbase = (*((CARD16*)(0x10 << 2) + 1)) << 4;
- if (Config.Verbose > 0) printf("vbase: 0x%x\n",vbase);
- return vbase;
-}
-#endif
-
-static CARD32
-setup_int_vect(void)
-{
- const CARD16 cs = 0x0;
- const CARD16 ip = 0x0;
- int i;
-
- /* let the int vects point to the SYS_BIOS seg */
- for (i=0; i<0x80; i++) {
- ((CARD16*)0)[i<<1] = ip;
- ((CARD16*)0)[(i<<1)+1] = cs;
- }
- /* video interrupts default location */
- ((CARD16*)0)[(0x42<<1)+1] = 0xf000;
- ((CARD16*)0)[0x42<<1] = 0xf065;
- ((CARD16*)0)[(0x10<<1)+1] = 0xf000;
- ((CARD16*)0)[0x10<<1] = 0xf065;
- /* video param table default location (int 1d) */
- ((CARD16*)0)[(0x1d<<1)+1] = 0xf000;
- ((CARD16*)0)[0x1d<<1] = 0xf0A4;
- /* font tables default location (int 1F) */
- ((CARD16*)0)[(0x1f<<1)+1] = 0xf000;
- ((CARD16*)0)[0x1f<<1] = 0xfa6e;
-
- /* int 11 default location */
- ((CARD16*)0)[(0x11<<1)+1] = 0xf000;
- ((CARD16*)0)[0x11<<1] = 0xf84d;
- /* int 12 default location */
- ((CARD16*)0)[(0x12<<1)+1] = 0xf000;
- ((CARD16*)0)[0x12<<1] = 0xf841;
- /* int 15 default location */
- ((CARD16*)0)[(0x15<<1)+1] = 0xf000;
- ((CARD16*)0)[0x15<<1] = 0xf859;
- /* int 1A default location */
- ((CARD16*)0)[(0x1a<<1)+1] = 0xf000;
- ((CARD16*)0)[0x1a<<1] = 0xff6e;
- /* int 05 default location */
- ((CARD16*)0)[(0x05<<1)+1] = 0xf000;
- ((CARD16*)0)[0x05<<1] = 0xff54;
- /* int 08 default location */
- ((CARD16*)0)[(0x8<<1)+1] = 0xf000;
- ((CARD16*)0)[0x8<<1] = 0xfea5;
- /* int 13 default location (fdd) */
- ((CARD16*)0)[(0x13<<1)+1] = 0xf000;
- ((CARD16*)0)[0x13<<1] = 0xec59;
- /* int 0E default location */
- ((CARD16*)0)[(0xe<<1)+1] = 0xf000;
- ((CARD16*)0)[0xe<<1] = 0xef57;
- /* int 17 default location */
- ((CARD16*)0)[(0x17<<1)+1] = 0xf000;
- ((CARD16*)0)[0x17<<1] = 0xefd2;
- /* fdd table default location (int 1e) */
- ((CARD16*)0)[(0x1e<<1)+1] = 0xf000;
- ((CARD16*)0)[0x1e<<1] = 0xefc7;
- return V_BIOS;
-}
-
-static int
-setup_system_bios(void)
-{
- char *date = "06/01/99";
- char *eisa_ident = "PCI/ISA";
-
- if (Config.MapSysBios) {
-
- if (!copy_sys_bios()) return 0;
- return 1;
-
- } else {
-
-/* memset((void *)0xF0000,0xf4,0xfff7); */
-
- /*
- * we trap the "industry standard entry points" to the BIOS
- * and all other locations by filling them with "hlt"
- * TODO: implement hlt-handler for these
- */
- memset((void *)0xF0000,0xf4,0x10000);
-
- /*
- * TODO: we should copy the fdd table (0xfec59-0xfec5b)
- * the video parameter table (0xf0ac-0xf0fb)
- * and the font tables (0xfa6e-0xfe6d)
- * from the original bios here
- */
-
- /* set bios date */
- strcpy((char *)0xFFFF5,date);
- /* set up eisa ident string */
- strcpy((char *)0xFFFD9,eisa_ident);
- /* write system model id for IBM-AT */
- ((char *)0)[0xFFFFE] = 0xfc;
-
- return 1;
- }
-
-}
-
-static void
-update_bios_vars(void)
-{
- int mem_fd;
- void *map;
- memType i;
-
-#ifdef __ia64__
- if ((mem_fd = open(MEM_FILE,O_RDWR | O_SYNC))<0)
-#else
- if ((mem_fd = open(MEM_FILE,O_RDWR))<0)
-#endif
- {
- perror("opening memory");
- return;
- }
-
- if ((map = mmap((void *) 0, (size_t) 0x2000,
- PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED,
- mem_fd, 0)) == (void *)-1) {
- perror("mmap error in map_hardware_ram (3)");
- close(mem_fd);
- return;
- }
-
- for (i = 0; i < BIOS_MEM; i++) {
- if (bios_var[i] != *(CARD8*)i)
- *((CARD8*)map + i) = *(CARD8*)i;
- }
-
- munmap(map,0x2000);
- close(mem_fd);
-}
-
-static int
-chksum(CARD8 *start)
-{
- CARD16 size;
- CARD8 val = 0;
- int i;
-
- size = *(start+2) * 512;
- for (i = 0; i<size; i++)
- val += *(start + i);
-
- if (!val)
- return 1;
-
- fprintf(stderr,"BIOS cksum wrong!\n");
- return 0;
-}
-
-void
-runINT(int num, i86biosRegsPtr Regs)
-{
- Bool isVideo = FALSE;
- CARD8 code_int[] = { 3, 0xcd, 0x00, 0xf4 };
-
- code_int[2] = (CARD8) num;
-
- if (num == 0x10)
- isVideo = TRUE;
-
- if (!setup_system_bios())
- return;
-
- if ((isVideo && (!CurrentPci || CurrentPci->active)) || !isVideo) {
- CARD32 vbios_base;
-
-#ifdef __ia32__
- if (!(vbios_base = setup_primary_int_vect()))
-#else
- if (!(vbios_base = setup_int_vect()))
-#endif
- return;
- if (!copy_vbios(vbios_base))
- return;
- }
-
- if (!map_vram())
- return;
-
-#ifdef V86BIOS_DEBUG
- printf("starting BIOS\n");
-#endif
- loadCodeToMem((unsigned char *) BIOS_START, code_int);
- setup_io();
- print_regs(Regs);
- set_ioperm();
- set_hlt(TRUE);
- do_x86(BIOS_START,Regs);
- set_hlt(FALSE);
- print_regs(Regs);
-
-#ifdef V86BIOS_DEBUG
- printf("done\n");
-#endif
-
- if ((isVideo && (!CurrentPci || CurrentPci->active)) || !isVideo)
- update_bios_vars();
-}
-
-static void
-print_regs(i86biosRegsPtr regs)
-{
- printf("ax=%x bx=%x cx=%x dx=%x ds=%x es=%x di=%x si=%x\n",
- (CARD16)regs->ax,(CARD16)regs->bx,(CARD16)regs->cx,(CARD16)regs->dx,
- (CARD16)regs->ds,(CARD16)regs->es,(CARD16)regs->di,
- (CARD16)regs->si);
-}
-
-static void
-print_usage(void)
-{
-}
-
-void
-add_hlt(unsigned long val)
-{
- int i;
-
- if (val < BIOS_MEM || (val > VRAM_START && val < (VRAM_START + VRAM_SIZE))
- || val >= SIZE) {
- printf("address out of range\n");
- return;
- }
-
- for (i=0; i<20; i++) {
- if (hltp[i].address == 0) {
- hltp[i].address = (void*)val;
- break;
- }
- }
- if (i == 20) printf("no more hltpoints available\n");
-}
-
-void
-del_hlt(int val)
-{
- if (val == 21) { /* delete all */
- int i;
- printf("clearing all hltpoints\n");
- for (i=0; i <20; i++)
- hltp[i].address = NULL;
- } else if (val >= 0 && val <20)
- hltp[val].address = NULL;
- else printf("hltpoint %i out of range: valid range 0-19\n",val);
-}
-
-void
-list_hlt()
-{
- int i;
- for (i=0; i<20; i++)
- if (hltp[i].address)
- printf("hltpoint[%i]: 0x%lx\n",i,(unsigned long)hltp[i].address);
-}
-
-static void
-set_hlt(Bool set)
-{
- int i;
- for (i=0; i<20; i++)
- if (hltp[i].address) {
- if (set) {
- hltp[i].orgval = *(CARD8*)hltp[i].address;
- *(CARD8*)hltp[i].address = 0xf4;
- } else
- *(CARD8*)hltp[i].address = hltp[i].orgval;
- }
-}
-
-static void
-set_ioperm(void)
-{
- int i, start;
-
- ioperm(0,IOPERM_BITS,0);
-
- for (i = 0; i < IOPERM_BITS;i++)
- if (ioperm_list[i]) {
- start = i;
- for (;i < IOPERM_BITS; i++) {
- if (!ioperm_list[i]) {
- ioperm(start,i - start, 1);
- break;
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 13:49:16 +0000