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Implemented preliminary S3 ViRGE 2D blitter emulation.

Browse source 
Misc ViRGE fixes.
Changes to memory mapping.
Changes to PCI handling.
Disabled 'AMI WinBIOS 486 PCI' due to incomplete chipset emulation.
Invalid GUS register reads no longer kill the emulator.
This commit is contained in:
TomW 2014-03-20 14:03:55 +00:00
commit 2ca4ead570
49 changed files with 2078 additions and 700 deletions
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40
src/vid_oti067.c
View file

@ -4,6 +4,7 @@
#include "device.h"
#include "io.h"
#include "mem.h"
#include "rom.h"
#include "video.h"
#include "vid_oti067.h"
#include "vid_svga.h"
@ -12,6 +13,8 @@ typedef struct oti067_t
{
svga_t svga;
rom_t bios_rom;
int index;
uint8_t regs[32];
} oti067_t;
@ -110,11 +113,13 @@ void oti067_recalctimings(svga_t *svga)
svga->interlace = oti067->regs[0x14] & 0x80;
}
void *oti067_init()
void *oti067_common_init(char *bios_fn)
{
oti067_t *oti067 = malloc(sizeof(oti067_t));
memset(oti067, 0, sizeof(oti067_t));
rom_init(&oti067->bios_rom, bios_fn, 0xc0000, 0x8000, 0x7fff, 0, 0);
svga_init(&oti067->svga, oti067, 1 << 19, /*512kb*/
oti067_recalctimings,
oti067_in, oti067_out,
@ -126,6 +131,26 @@ void *oti067_init()
return oti067;
}
void *oti067_init()
{
return oti067_common_init("roms/oti067/bios.bin");
}
void *oti067_acer386_init()
{
oti067_t *oti067 = oti067_common_init("roms/acer386/oti067.bin");
if (oti067)
oti067->bios_rom.rom[0x5d] = 0x74;
return oti067;
}
static int oti067_available()
{
return rom_present("roms/oti067/bios.bin");
}
void oti067_close(void *p)
{
oti067_t *oti067 = (oti067_t *)p;
@ -162,7 +187,18 @@ device_t oti067_device =
0,
oti067_init,
oti067_close,
NULL,
oti067_available,
oti067_speed_changed,
oti067_force_redraw,
oti067_add_status_info
};
device_t oti067_acer386_device =
{
"Oak OTI-067 (Acermate 386SX/25N)",
0,
oti067_acer386_init,
oti067_close,
oti067_available,
oti067_speed_changed,
oti067_force_redraw,
oti067_add_status_info