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Implemented preliminary S3 ViRGE 2D blitter emulation.

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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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35
src/vid_tgui9440.c
View file

@ -4,6 +4,7 @@
#include "device.h"
#include "io.h"
#include "mem.h"
#include "rom.h"
#include "video.h"
#include "vid_svga.h"
#include "vid_svga_render.h"
@ -15,6 +16,8 @@ typedef struct tgui_t
mem_mapping_t linear_mapping;
mem_mapping_t accel_mapping;
rom_t bios_rom;
svga_t svga;
struct
@ -462,37 +465,20 @@ void tgui_pci_write(int func, int addr, uint8_t val, void *p)
}
}
void *tgui8900d_init()
{
tgui_t *tgui = malloc(sizeof(tgui_t));
memset(tgui, 0, sizeof(tgui_t));
svga_init(&tgui->svga, tgui, 1 << 20, /*1mb - chip supports 2mb, but drivers are buggy*/
tgui_recalctimings,
tgui_in, tgui_out,
NULL);
mem_mapping_add(&tgui->linear_mapping, 0, 0, svga_read_linear, svga_readw_linear, svga_readl_linear, svga_write_linear, svga_writew_linear, svga_writel_linear, &tgui->svga);
mem_mapping_add(&tgui->accel_mapping, 0xbc000, 0x4000, tgui_accel_read, tgui_accel_read_w, tgui_accel_read_l, tgui_accel_write, tgui_accel_write_w, tgui_accel_write_l, tgui);
mem_mapping_disable(&tgui->linear_mapping);
mem_mapping_disable(&tgui->accel_mapping);
io_sethandler(0x03c0, 0x0020, tgui_in, NULL, NULL, tgui_out, NULL, NULL, tgui);
return tgui;
}
void *tgui9440_init()
{
tgui_t *tgui = malloc(sizeof(tgui_t));
memset(tgui, 0, sizeof(tgui_t));
rom_init(&tgui->bios_rom, "roms/9440.vbi", 0xc0000, 0x8000, 0x7fff, 0, 0);
svga_init(&tgui->svga, tgui, 1 << 21, /*2mb*/
tgui_recalctimings,
tgui_in, tgui_out,
tgui_hwcursor_draw);
mem_mapping_add(&tgui->linear_mapping, 0, 0, svga_read_linear, svga_readw_linear, svga_readl_linear, svga_write_linear, svga_writew_linear, svga_writel_linear, &tgui->svga);
mem_mapping_add(&tgui->accel_mapping, 0xbc000, 0x4000, tgui_accel_read, tgui_accel_read_w, tgui_accel_read_l, tgui_accel_write, tgui_accel_write_w, tgui_accel_write_l, tgui);
mem_mapping_add(&tgui->linear_mapping, 0, 0, svga_read_linear, svga_readw_linear, svga_readl_linear, svga_write_linear, svga_writew_linear, svga_writel_linear, NULL, 0, &tgui->svga);
mem_mapping_add(&tgui->accel_mapping, 0xbc000, 0x4000, tgui_accel_read, tgui_accel_read_w, tgui_accel_read_l, tgui_accel_write, tgui_accel_write_w, tgui_accel_write_l, NULL, 0, tgui);
mem_mapping_disable(&tgui->accel_mapping);
io_sethandler(0x03c0, 0x0020, tgui_in, NULL, NULL, tgui_out, NULL, NULL, tgui);
@ -503,6 +489,11 @@ void *tgui9440_init()
return tgui;
}
static int tgui9440_available()
{
return rom_present("roms/9440.vbi");
}
void tgui_close(void *p)
{
tgui_t *tgui = (tgui_t *)p;
@ -1127,7 +1118,7 @@ device_t tgui9440_device =
0,
tgui9440_init,
tgui_close,
NULL,
tgui9440_available,
tgui_speed_changed,
tgui_force_redraw,
tgui_add_status_info