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Removed excess memset()'s from hdd_image.c and did a few other optimizations there, also fixed incorrect zero'ing of the buffer in hdd_image_write_ex();

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Did a tweak to mmutranslate() in mem.c, should increase performance again;
Added the ATi VGA Wonder and ATi VGA-88, made the ATi VGA Edge-16 use the correct BIOS.
This commit is contained in:
OBattler
2018-02-07 19:01:39 +01:00
parent dbae9ae0f5
commit f18cd3d89e
7 changed files with 134 additions and 248 deletions
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99
src/video/vid_ati18800.c
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@@ -8,7 +8,7 @@
*
* ATI 18800 emulation (VGA Edge-16)
*
* Version: @(#)vid_ati18800.c 1.0.4 2018/02/03
* Version: @(#)vid_ati18800.c 1.0.5 2018/02/07
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -33,7 +33,15 @@
#include "vid_svga.h"
#define BIOS_ROM_PATH L"roms/video/ati18800/vga88.bin"
#define BIOS_ROM_PATH_WONDER L"roms/video/ati18800/VGA_Wonder_V3-1.02.bin"
#define BIOS_ROM_PATH_VGA88 L"roms/video/ati18800/vga88.bin"
#define BIOS_ROM_PATH_EDGE16 L"roms/video/ati18800/vgaedge16.vbi"
enum {
ATI18800_WONDER = 0,
ATI18800_VGA88,
ATI18800_EDGE16
};
typedef struct ati18800_t
@@ -93,18 +101,6 @@ static void ati18800_out(uint16_t addr, uint8_t val, void *p)
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80) && !(ati18800->regs[0xb4] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
if ((ati18800->regs[0xb4] & 4) && (svga->crtcreg == 9))
val = (svga->crtc[9] & ~0x60) | (val & 0x60);
if ((ati18800->regs[0xb4] & 8) && ((svga->crtcreg == 6) || (svga->crtcreg == 0x10) || (svga->crtcreg == 0x12) || (svga->crtcreg == 0x15) || (svga->crtcreg == 0x16)))
return;
if ((ati18800->regs[0xb4] & 8) && (svga->crtcreg == 7))
val = (svga->crtc[9] & ~0x10) | (val & 0x10);
if ((ati18800->regs[0xb4] & 8) && (svga->crtcreg == 9))
val = (svga->crtc[9] & ~0xdf) | (val & 0xdf);
if ((ati18800->regs[0xb4] & 8) && (svga->crtcreg == 0x11))
val = (svga->crtc[9] & ~0xf0) | (val & 0xf0);
if ((ati18800->regs[0xb4] & 0x10) && ((svga->crtcreg == 0x0a) || (svga->crtcreg == 0x0b)))
return;
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)
@@ -163,28 +159,23 @@ static uint8_t ati18800_in(uint16_t addr, void *p)
return temp;
}
void ati18800_recalctimings(svga_t *svga)
{
ati18800_t *ati18800 = (ati18800_t *)svga->p;
svga->ma_latch += (ati18800->regs[0xb0] & 0xc0) << 10;
if(ati18800->regs[0xb1] & 0x40)
{
svga->vtotal >>= 1;
svga->dispend >>= 1;
svga->vsyncstart >>= 1;
svga->split >>= 1;
svga->vblankstart >>= 1;
}
}
static void *ati18800_init(device_t *info)
{
ati18800_t *ati18800 = malloc(sizeof(ati18800_t));
memset(ati18800, 0, sizeof(ati18800_t));
rom_init(&ati18800->bios_rom, BIOS_ROM_PATH, 0xc0000, 0x10000, 0xffff, 0, MEM_MAPPING_EXTERNAL);
switch (info->local) {
case ATI18800_WONDER:
default:
rom_init(&ati18800->bios_rom, BIOS_ROM_PATH_WONDER, 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
break;
case ATI18800_VGA88:
rom_init(&ati18800->bios_rom, BIOS_ROM_PATH_VGA88, 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
break;
case ATI18800_EDGE16:
rom_init(&ati18800->bios_rom, BIOS_ROM_PATH_EDGE16, 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
break;
};
svga_init(&ati18800->svga, ati18800, 1 << 19, /*512kb*/
NULL,
@@ -202,9 +193,19 @@ static void *ati18800_init(device_t *info)
return ati18800;
}
static int ati18800_wonder_available(void)
{
return rom_present(BIOS_ROM_PATH_WONDER);
}
static int ati18800_vga88_available(void)
{
return rom_present(BIOS_ROM_PATH_VGA88);
}
static int ati18800_available(void)
{
return rom_present(BIOS_ROM_PATH);
return rom_present(BIOS_ROM_PATH_EDGE16);
}
static void ati18800_close(void *p)
@@ -237,10 +238,38 @@ static void ati18800_add_status_info(char *s, int max_len, void *p)
svga_add_status_info(s, max_len, &ati18800->svga);
}
device_t ati18800_device =
device_t ati18800_wonder_device =
{
"ATI-18800",
DEVICE_ISA, 0,
DEVICE_ISA, ATI18800_WONDER,
ati18800_init,
ati18800_close,
NULL,
ati18800_wonder_available,
ati18800_speed_changed,
ati18800_force_redraw,
ati18800_add_status_info,
NULL
};
device_t ati18800_vga88_device =
{
"ATI-18800-1",
DEVICE_ISA, ATI18800_VGA88,
ati18800_init,
ati18800_close,
NULL,
ati18800_vga88_available,
ati18800_speed_changed,
ati18800_force_redraw,
ati18800_add_status_info,
NULL
};
device_t ati18800_device =
{
"ATI-18800-5",
DEVICE_ISA, ATI18800_EDGE16,
ati18800_init,
ati18800_close,
NULL,