diff --git a/src/video/vid_ati18800.c b/src/video/vid_ati18800.c
index fa4b22044..43925c733 100644
--- a/src/video/vid_ati18800.c
+++ b/src/video/vid_ati18800.c
@@ -8,7 +8,7 @@
*
* ATI 18800 emulation (VGA Edge-16)
*
- * Version: @(#)vid_ati18800.c 1.0.14 2018/10/02
+ * Version: @(#)vid_ati18800.c 1.0.15 2020/01/18
*
* Authors: Sarah Walker,
* Miran Grca,
@@ -39,15 +39,18 @@
#endif
#define BIOS_ROM_PATH_VGA88 L"roms/video/ati18800/vga88.bin"
#define BIOS_ROM_PATH_EDGE16 L"roms/video/ati18800/vgaedge16.vbi"
+#define BIOS_ROM_PATH_EGAWONDER800P L"roms/video/ati18800/ATI EGA Wonder 800+ N1.00.BIN"
enum {
#if defined(DEV_BRANCH) && defined(USE_VGAWONDER)
ATI18800_WONDER = 0,
ATI18800_VGA88,
- ATI18800_EDGE16
+ ATI18800_EDGE16,
+ ATI18800_EGAWONDER800P
#else
ATI18800_VGA88 = 0,
- ATI18800_EDGE16
+ ATI18800_EDGE16,
+ ATI18800_EGAWONDER800P
#endif
};
@@ -61,6 +64,10 @@ typedef struct ati18800_t
uint8_t regs[256];
int index;
+
+ int is_ega;
+ int ega_switches;
+ int ega_switch_read;
} ati18800_t;
static video_timings_t timing_ati18800 = {VIDEO_ISA, 8, 16, 32, 8, 16, 32};
@@ -71,6 +78,7 @@ static void ati18800_out(uint16_t addr, uint8_t val, void *p)
ati18800_t *ati18800 = (ati18800_t *)p;
svga_t *svga = &ati18800->svga;
uint8_t old;
+ int c;
if (((addr & 0xfff0) == 0x3d0 || (addr & 0xfff0) == 0x3b0) && !(svga->miscout & 1))
addr ^= 0x60;
@@ -103,6 +111,41 @@ static void ati18800_out(uint16_t addr, uint8_t val, void *p)
}
break;
+ case 0x3c2:
+ if (ati18800->is_ega)
+ {
+ if ((val & 0x80) != (svga->miscout & 0x80))
+ {
+ if (val & 0x80)
+ {
+ for (c = 0; c < 256; c++)
+ {
+ svga->pallook[c] = makecol32(((c >> 2) & 1) * 0xaa, ((c >> 1) & 1) * 0xaa, (c & 1) * 0xaa);
+ svga->pallook[c] += makecol32(((c >> 5) & 1) * 0x55, ((c >> 4) & 1) * 0x55, ((c >> 3) & 1) * 0x55);
+ }
+ svga->vertical_linedbl = 0;
+ }
+ else
+ {
+ for (c = 0; c < 256; c++)
+ {
+ if ((c & 0x17) == 6)
+ svga->pallook[c] = makecol32(0xaa, 0x55, 0x00);
+ else
+ {
+ svga->pallook[c] = makecol32(((c >> 2) & 1) * 0xaa, ((c >> 1) & 1) * 0xaa, (c & 1) * 0xaa);
+ svga->pallook[c] += makecol32(((c >> 4) & 1) * 0x55, ((c >> 4) & 1) * 0x55, ((c >> 4) & 1) * 0x55);
+ }
+ }
+ svga->vertical_linedbl = 1;
+ }
+
+ svga->fullchange = changeframecount;
+ }
+ ati18800->ega_switch_read = val & 0xc;
+ }
+ break;
+
case 0x3D4:
svga->crtcreg = val & 0x3f;
return;
@@ -153,6 +196,19 @@ static uint8_t ati18800_in(uint16_t addr, void *p)
}
break;
+ case 0x3c2:
+ if (ati18800->is_ega)
+ {
+ switch (ati18800->ega_switch_read)
+ {
+ case 0xc: return (ati18800->ega_switches & 1) ? 0x10 : 0;
+ case 0x8: return (ati18800->ega_switches & 2) ? 0x10 : 0;
+ case 0x4: return (ati18800->ega_switches & 4) ? 0x10 : 0;
+ case 0x0: return (ati18800->ega_switches & 8) ? 0x10 : 0;
+ }
+ }
+ break;
+
case 0x3D4:
temp = svga->crtcreg;
break;
@@ -188,13 +244,32 @@ static void ati18800_recalctimings(svga_t *svga)
}
}
+static void ega_wonder_800_recalctimings(svga_t *svga)
+{
+ ati18800_t *ati18800 = (ati18800_t *)svga->p;
+ int clksel = ((svga->miscout & 0xc) >> 2) | ((ati18800->regs[0xbe] & 0x10) ? 4 : 0);
+
+ switch (clksel)
+ {
+ case 0: svga->clock = (cpuclock * (double)(1ull << 32)) / 25175000.0; break;
+ case 1: svga->clock = (cpuclock * (double)(1ull << 32)) / 28322000.0; break;
+ case 4: svga->clock = (cpuclock * (double)(1ull << 32)) / 14318181.0; break;
+ case 5: svga->clock = (cpuclock * (double)(1ull << 32)) / 16257000.0; break;
+ case 7: default: svga->clock = (cpuclock * (double)(1ull << 32)) / 36000000.0; break;
+ }
+}
+
+
static void *ati18800_init(const device_t *info)
{
+ int c;
ati18800_t *ati18800 = malloc(sizeof(ati18800_t));
memset(ati18800, 0, sizeof(ati18800_t));
video_inform(VIDEO_FLAG_TYPE_SPECIAL, &timing_ati18800);
+ ati18800->is_ega = (info->local == ATI18800_EGAWONDER800P);
+
switch (info->local) {
#if defined(DEV_BRANCH) && defined(USE_VGAWONDER)
case ATI18800_WONDER:
@@ -210,20 +285,46 @@ static void *ati18800_init(const device_t *info)
case ATI18800_EDGE16:
rom_init(&ati18800->bios_rom, BIOS_ROM_PATH_EDGE16, 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
break;
+ case ATI18800_EGAWONDER800P:
+ rom_init(&ati18800->bios_rom, BIOS_ROM_PATH_EGAWONDER800P, 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
+ break;
};
+ if (info->local != ATI18800_EGAWONDER800P) {
svga_init(&ati18800->svga, ati18800, 1 << 20, /*512kb*/
ati18800_recalctimings,
ati18800_in, ati18800_out,
NULL,
NULL);
+ } else {
+ svga_init(&ati18800->svga, ati18800, 1 << 18, /*256kb*/
+ ega_wonder_800_recalctimings,
+ ati18800_in, ati18800_out,
+ NULL,
+ NULL);
+ }
io_sethandler(0x01ce, 0x0002, ati18800_in, NULL, NULL, ati18800_out, NULL, NULL, ati18800);
- io_sethandler(0x03c0, 0x0020, ati18800_in, NULL, NULL, ati18800_out, NULL, NULL, ati18800);
+ if (info->local != ATI18800_EGAWONDER800P)
+ io_sethandler(0x03c0, 0x0020, ati18800_in, NULL, NULL, ati18800_out, NULL, NULL, ati18800);
+ else {
+ io_sethandler(0x03c6, 0x0006, ati18800_in, NULL, NULL, ati18800_out, NULL, NULL, ati18800);
+ io_sethandler(0x03ca, 0x0016, ati18800_in, NULL, NULL, ati18800_out, NULL, NULL, ati18800);
+
+ for (c = 0; c < 256; c++) {
+ ati18800->svga.pallook[c] = makecol32(((c >> 2) & 1) * 0xaa, ((c >> 1) & 1) * 0xaa, (c & 1) * 0xaa);
+ ati18800->svga.pallook[c] += makecol32(((c >> 5) & 1) * 0x55, ((c >> 4) & 1) * 0x55, ((c >> 3) & 1) * 0x55);
+ }
+ }
ati18800->svga.miscout = 1;
- ati_eeprom_load(&ati18800->eeprom, L"ati18800.nvr", 0);
+ if (info->local != ATI18800_EGAWONDER800P)
+ ati_eeprom_load(&ati18800->eeprom, L"ati18800.nvr", 0);
+ else {
+ ati18800->ega_switches = 9;
+ ati_eeprom_load(&ati18800->eeprom, L"egawonder800.nvr", 0);
+ }
return ati18800;
}
@@ -245,6 +346,11 @@ static int ati18800_available(void)
return rom_present(BIOS_ROM_PATH_EDGE16);
}
+static int ega_wonder_800_available(void)
+{
+ return rom_present(BIOS_ROM_PATH_EGAWONDER800P);
+}
+
static void ati18800_close(void *p)
{
ati18800_t *ati18800 = (ati18800_t *)p;
@@ -308,3 +414,16 @@ const device_t ati18800_device =
ati18800_force_redraw,
NULL
};
+
+const device_t ati_ega_wonder_800_device =
+{
+ "ATI EGA Wonder 800+",
+ DEVICE_ISA, ATI18800_EGAWONDER800P,
+ ati18800_init,
+ ati18800_close,
+ NULL,
+ ega_wonder_800_available,
+ ati18800_speed_changed,
+ ati18800_force_redraw,
+ NULL
+};
diff --git a/src/video/vid_ati18800.h b/src/video/vid_ati18800.h
index b41facab3..725f5cc73 100644
--- a/src/video/vid_ati18800.h
+++ b/src/video/vid_ati18800.h
@@ -4,3 +4,4 @@
extern const device_t ati18800_wonder_device;
extern const device_t ati18800_vga88_device;
extern const device_t ati18800_device;
+extern const device_t ati_ega_wonder_800_device;
diff --git a/src/video/vid_svga.c b/src/video/vid_svga.c
index 8a5aeca5a..6b3044aef 100644
--- a/src/video/vid_svga.c
+++ b/src/video/vid_svga.c
@@ -11,7 +11,7 @@
* This is intended to be used by another SVGA driver,
* and not as a card in it's own right.
*
- * Version: @(#)vid_svga.c 1.0.40 2019/12/28
+ * Version: @(#)vid_svga.c 1.0.41 2020/01/18
*
* Authors: Sarah Walker,
* Miran Grca,
@@ -700,6 +700,12 @@ svga_poll(void *p)
svga->ma = svga->maback;
}
}
+
+ svga->hsync_divisor = !svga->hsync_divisor;
+
+ if (svga->hsync_divisor && (svga->crtc[0x17] & 4))
+ return;
+
svga->vc++;
svga->vc &= 2047;
@@ -1238,7 +1244,10 @@ svga_doblit(int y1, int y2, int wx, int wy, svga_t *svga)
} else
suppress_overscan = 0;
- set_screen_size(xsize + x_add, ysize + y_add);
+ if (svga->vertical_linedbl)
+ set_screen_size(xsize + x_add, (ysize + y_add) * 2);
+ else
+ set_screen_size(xsize + x_add, ysize + y_add);
if (video_force_resize_get())
video_force_resize_set(0);
diff --git a/src/video/vid_svga.h b/src/video/vid_svga.h
index be4db180e..d04a1bb99 100644
--- a/src/video/vid_svga.h
+++ b/src/video/vid_svga.h
@@ -8,7 +8,7 @@
*
* Generic SVGA handling.
*
- * Version: @(#)vid_svga.h 1.0.15 2018/10/04
+ * Version: @(#)vid_svga.h 1.0.16 2020/01/18
*
* Authors: Sarah Walker,
* Miran Grca,
@@ -131,6 +131,12 @@ typedef struct svga_t
dac_mask, dac_status,
ksc5601_sbyte_mask;
+
+ int vertical_linedbl;
+
+ /*Used to implement CRTC[0x17] bit 2 hsync divisor*/
+ int hsync_divisor;
+
void *ramdac, *clock_gen;
} svga_t;
diff --git a/src/video/vid_table.c b/src/video/vid_table.c
index b72a71e08..cec443f7d 100644
--- a/src/video/vid_table.c
+++ b/src/video/vid_table.c
@@ -80,6 +80,7 @@ static const VIDEO_CARD
video_cards[] = {
{ "None", "none", NULL },
{ "Internal", "internal", NULL },
+ { "[ISA] ATI EGA Wonder 800+", "egawonder800", &ati_ega_wonder_800_device },
{ "[ISA] ATI Graphics Pro Turbo (Mach64 GX)", "mach64gx_isa", &mach64gx_isa_device },
{ "[ISA] ATI Korean VGA (ATI-28800-5)", "ati28800k", &ati28800k_device },
{ "[ISA] ATI VGA-88 (ATI-18800-1)", "ati18800v", &ati18800_vga88_device },