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path: root/board/MAI/bios_emulator/scitech/src/v86bios/main.c
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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/v86bios/main.c')
-rw-r--r--board/MAI/bios_emulator/scitech/src/v86bios/main.c410
1 files changed, 205 insertions, 205 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/v86bios/main.c b/board/MAI/bios_emulator/scitech/src/v86bios/main.c
index b73d05776..15f91150f 100644
--- a/board/MAI/bios_emulator/scitech/src/v86bios/main.c
+++ b/board/MAI/bios_emulator/scitech/src/v86bios/main.c
@@ -45,12 +45,12 @@
#define V_BIOS_SIZE 0x1FFFF
#define BIOS_START 0x7C00 /* default BIOS entry */
-//CARD8 code[] = { 0xb8 , 0xf0 , 0xf0, 0xf4 };
+/*CARD8 code[] = { 0xb8 , 0xf0 , 0xf0, 0xf4 }; */
#define VB_X(x) (V_BIOS >> x) & 0xFF
CARD8 code[] = { 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 };
+/*CARD8 code[] = { 0x9a, 0x03, 0x00, 0x00, VB_X(12), 0xb8, 0x03, 0x00, */
+/*0xcd, 0x10, 0xf4 }; */
+/*CARD8 code[] = { 0xb8 , 0xf0 , 0xf0 ,0xf4 }; */
static void sig_handler(int);
static int map(void);
@@ -87,154 +87,154 @@ main(void)
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;
+ Config.ShowAllDev = SHOW_ALL_DEV;
+ Config.PrintIp = PRINT_IP;
+ Config.SaveBios = SAVE_BIOS;
+ Config.Trace = TRACE;
+ Config.ConfigActiveOnly = CONFIG_ACTIVE_ONLY;
Config.ConfigActiveDevice = CONFIG_ACTIVE_DEVICE;
- Config.MapSysBios = MAP_SYS_BIOS;
- Config.Resort = RESORT;
- Config.FixRom = FIX_ROM;
- Config.NoConsole = NO_CONSOLE;
+ Config.MapSysBios = MAP_SYS_BIOS;
+ Config.Resort = RESORT;
+ Config.FixRom = FIX_ROM;
+ Config.NoConsole = NO_CONSOLE;
Config.Verbose = VERBOSE;
if (!map())
- exit(1);
-
+ exit(1);
+
if (!setup_system_bios())
- exit(1);
-
+ exit(1);
+
iopl(3);
setup_io();
-
+
scan_pci();
if (!CurrentPci && !Config.ConfigActiveDevice && !Config.ConfigActiveOnly)
- exit (1);
+ exit (1);
#endif
Console = open_console();
if (Config.ConfigActiveOnly) {
- CARD16 ax;
- int activePci = 0;
- int error = 0;
-
- while (CurrentPci) {
- if (CurrentPci->active) {
- activePci = 1;
- if (!(mapPciRom(NULL) && chksum((CARD8*)V_BIOS)))
- error = 1;
- break;
- }
- CurrentPci = CurrentPci->next;
- }
- ax = ((CARD16)(CurrentPci->bus) << 8)
- | (CurrentPci->dev << 3) | (CurrentPci->func & 0x7);
- P_printf("ax: 0x%x\n",ax);
- setup_int_vect();
- if (!error && (activePci || copy_vbios())) {
-
- if (Config.SaveBios) save_bios_to_file();
- if (map_vram()) {
- printf("initializing ISA\n");
- bootBIOS(0);
- }
- }
- unmap_vram();
- sleep(1);
+ CARD16 ax;
+ int activePci = 0;
+ int error = 0;
+
+ while (CurrentPci) {
+ if (CurrentPci->active) {
+ activePci = 1;
+ if (!(mapPciRom(NULL) && chksum((CARD8*)V_BIOS)))
+ error = 1;
+ break;
+ }
+ CurrentPci = CurrentPci->next;
+ }
+ ax = ((CARD16)(CurrentPci->bus) << 8)
+ | (CurrentPci->dev << 3) | (CurrentPci->func & 0x7);
+ P_printf("ax: 0x%x\n",ax);
+ setup_int_vect();
+ if (!error && (activePci || copy_vbios())) {
+
+ if (Config.SaveBios) save_bios_to_file();
+ if (map_vram()) {
+ printf("initializing ISA\n");
+ bootBIOS(0);
+ }
+ }
+ unmap_vram();
+ sleep(1);
} else {
- /* disable primary card */
- save_msr = inb(0x3CC);
- save_vse = inb(0x3C3);
- save_46e8 = inb(0x46e8);
- save_pos102 = inb(0x102);
-
- signal(2,sig_handler);
- signal(11,sig_handler);
-
- 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) {
- 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 */
- setup_int_vect();
-
- ax = ((CARD16)(CurrentPci->bus) << 8)
- | (CurrentPci->dev << 3) | (CurrentPci->func & 0x7);
- P_printf("ax: 0x%x\n",ax);
-
- if (!((mapPciRom(NULL) && chksum((CARD8*)V_BIOS))
- || (CurrentPci->active && copy_vbios()))) {
- 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();
-
- CurrentPci = CurrentPci->next;
- }
-
- /* We have an ISA device - configure if requested */
- if (!Active_is_Pci && Config.ConfigActiveDevice) {
- pciVideoDisable();
-
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
+ /* disable primary card */
+ save_msr = inb(0x3CC);
+ save_vse = inb(0x3C3);
+ save_46e8 = inb(0x46e8);
+ save_pos102 = inb(0x102);
+
+ signal(2,sig_handler);
+ signal(11,sig_handler);
+
+ 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) {
+ 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 */
+ setup_int_vect();
+
+ ax = ((CARD16)(CurrentPci->bus) << 8)
+ | (CurrentPci->dev << 3) | (CurrentPci->func & 0x7);
+ P_printf("ax: 0x%x\n",ax);
+
+ if (!((mapPciRom(NULL) && chksum((CARD8*)V_BIOS))
+ || (CurrentPci->active && copy_vbios()))) {
+ 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();
+
+ CurrentPci = CurrentPci->next;
+ }
+
+ /* We have an ISA device - configure if requested */
+ if (!Active_is_Pci && Config.ConfigActiveDevice) {
+ pciVideoDisable();
- setup_int_vect();
- if (copy_vbios()) {
-
- if (Config.SaveBios) save_bios_to_file();
- if (map_vram()) {
- printf("initializing ISA\n");
- bootBIOS(0);
- }
- }
-
- unmap_vram();
- sleep(1);
- }
-
- pciVideoRestore();
+ outb(0x102, save_pos102);
+ outb(0x46e8, save_46e8);
+ outb(0x3C3, save_vse);
+ outb(0x3C2, save_msr);
- outb(0x102, save_pos102);
- outb(0x46e8, save_46e8);
- outb(0x3C3, save_vse);
- outb(0x3C2, save_msr);
+ setup_int_vect();
+ if (copy_vbios()) {
+
+ if (Config.SaveBios) save_bios_to_file();
+ if (map_vram()) {
+ printf("initializing ISA\n");
+ bootBIOS(0);
+ }
+ }
+
+ unmap_vram();
+ sleep(1);
+ }
+
+ pciVideoRestore();
+
+ outb(0x102, save_pos102);
+ outb(0x46e8, save_46e8);
+ outb(0x3C3, save_vse);
+ outb(0x3C2, save_msr);
}
-
+
close_console(Console);
#ifdef DELETE
iopl(0);
@@ -243,24 +243,24 @@ main(void)
printf("done !\n");
#endif
if (Config.IoStatistics)
- io_statistics();
+ io_statistics();
#ifdef DELETE
exit(0);
#endif
}
-int
+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 );
+ PROT_EXEC | PROT_READ | PROT_WRITE,
+ MAP_FIXED | MAP_PRIVATE | MAP_ANON,
+ -1, 0 );
if (mem != 0) {
- perror("anonymous map");
- return (0);
+ perror("anonymous map");
+ return (0);
}
memset(mem,0,SIZE);
@@ -294,33 +294,33 @@ map_vram(void)
int mem_fd;
#ifdef __ia64__
- if ((mem_fd = open(MEM_FILE,O_RDWR | O_SYNC))<0)
+ if ((mem_fd = open(MEM_FILE,O_RDWR | O_SYNC))<0)
#else
- if ((mem_fd = open(MEM_FILE,O_RDWR))<0)
+ if ((mem_fd = open(MEM_FILE,O_RDWR))<0)
#endif
{
- perror("opening memory");
- return 0;
+ perror("opening memory");
+ return 0;
}
#ifndef __alpha__
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)
+ PROT_EXEC | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED,
+ mem_fd, VRAM_START) == (void *) -1)
#else
- 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)
+ 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)
#endif
{
- perror("mmap error in map_hardware_ram");
- close(mem_fd);
- return (0);
- }
+ perror("mmap error in map_hardware_ram");
+ close(mem_fd);
+ return (0);
+ }
vram_mapped = 1;
close(mem_fd);
return (1);
@@ -330,7 +330,7 @@ static void
unmap_vram(void)
{
if (!vram_mapped) return;
-
+
munmap((void*)VRAM_START,VRAM_SIZE);
vram_mapped = 0;
}
@@ -343,39 +343,39 @@ copy_vbios(void)
int size;
if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) {
- perror("opening memory");
- return (0);
+ perror("opening memory");
+ return (0);
}
- if (lseek(mem_fd,(off_t) V_BIOS, SEEK_SET) != (off_t) V_BIOS) {
- fprintf(stderr,"Cannot lseek\n");
- goto Error;
+ if (lseek(mem_fd,(off_t) V_BIOS, SEEK_SET) != (off_t) V_BIOS) {
+ 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;
+ fprintf(stderr,"Cannot read\n");
+ goto Error;
}
- if (lseek(mem_fd,(off_t) V_BIOS,SEEK_SET) != (off_t) V_BIOS)
- goto Error;
+ if (lseek(mem_fd,(off_t) V_BIOS,SEEK_SET) != (off_t) V_BIOS)
+ goto Error;
if (*tmp != 0x55 || *(tmp+1) != 0xAA ) {
#ifdef DEBUG
- dprint((unsigned long)tmp,0x100);
+ dprint((unsigned long)tmp,0x100);
#endif
- fprintf(stderr,"No bios found at: 0x%x\n",V_BIOS);
- goto Error;
+ fprintf(stderr,"No bios found at: 0x%x\n",V_BIOS);
+ goto Error;
}
size = *(tmp+2) * 512;
if (read(mem_fd, (char *)V_BIOS, (size_t) size) != (size_t) size) {
- fprintf(stderr,"Cannot read\n");
- goto Error;
+ fprintf(stderr,"Cannot read\n");
+ goto Error;
}
free(tmp);
close(mem_fd);
if (!chksum((CARD8)V_BIOS))
- return (0);
+ return (0);
return (1);
@@ -392,14 +392,14 @@ copy_sys_bios(void)
int mem_fd;
if ((mem_fd = open(MEM_FILE,O_RDONLY))<0) {
- perror("opening memory");
- return (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;
+
+ 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);
@@ -415,16 +415,16 @@ loadCodeToMem(unsigned char *ptr, CARD8 code[])
{
int i;
CARD8 val;
-
+
for ( i=0;;i++) {
- val = code[i];
- *ptr++ = val;
- if (val == 0xf4) break;
+ val = code[i];
+ *ptr++ = val;
+ if (val == 0xf4) break;
}
return;
}
-
-void
+
+void
dprint(unsigned long start, unsigned long size)
{
int i,j;
@@ -433,13 +433,13 @@ dprint(unsigned long start, unsigned long size)
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++)));
+ 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("%c",((((CARD8)(*c)) > 32) && (((CARD8)(*c)) < 128)) ?
+ (unsigned char) (*(c)): '.');
+ c++;
}
}
printf("\n");
@@ -452,16 +452,16 @@ save_bios_to_file(void)
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;
+ 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);
+ fprintf(stderr,"only saved %i of %i bytes\n",size,count);
num++;
}
@@ -511,11 +511,11 @@ setup_int_vect(void)
const CARD16 cs = 0x0000;
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;
+ ((CARD16*)0)[i<<1] = ip;
+ ((CARD16*)0)[(i<<1)+1] = cs;
}
/* video interrupts default location */
((CARD16*)0)[(0x42<<1)+1] = 0xf000;
@@ -566,13 +566,13 @@ setup_system_bios(void)
{
char *date = "06/01/99";
char *eisa_ident = "PCI/ISA";
-
+
#if MAP_SYS_BIOS
if (!copy_sys_bios()) return 0;
return 1;
#endif
-// memset((void *)0xF0000,0xf4,0xfff7);
-
+/* memset((void *)0xF0000,0xf4,0xfff7); */
+
/*
* we trap the "industry standard entry points" to the BIOS
* and all other locations by filling them with "hlt"
@@ -586,7 +586,7 @@ setup_system_bios(void)
* and the font tables (0xfa6e-0xfe6d)
* from the original bios here
*/
-
+
/* set bios date */
strcpy((char *)0xFFFF5,date);
/* set up eisa ident string */
@@ -604,10 +604,10 @@ chksum(CARD8 *start)
CARD8 val = 0;
int i;
- size = *(start+2) * 512;
+ size = *(start+2) * 512;
for (i = 0; i<size; i++)
val += *(start + i);
-
+
if (!val)
return 1;
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-30 22:03:29 +0000