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Merge pull request #6818 from win2kgamer/tandy-fixes-2

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Tandy and Cirrus VRAM fixes
This commit is contained in:
Miran Grča
2026-02-17 05:31:37 +01:00
committed by GitHub
parent 5b4b486afc 9a5ec04ec5
commit 9cf60a4633
4 changed files with 52 additions and 14 deletions
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1
src/include/86box/video.h
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@@ -387,6 +387,7 @@ extern const device_t gd5426_vlb_device;
extern const device_t gd5426_onboard_device;
extern const device_t gd5428_isa_device;
extern const device_t gd5428_vlb_onboard_device;
extern const device_t gd5428_vlb_onboard_tandy_device;
extern const device_t gd5428_vlb_device;
extern const device_t gd5428_diamond_speedstar_pro_b1_vlb_device;
extern const device_t gd5428_boca_isa_device;

10
src/machine/machine_table.c
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@@ -7893,7 +7893,7 @@ const machine_t machines[] = {
.max_multi = 0
},
.bus_flags = MACHINE_PS2,
.flags = MACHINE_IDE | MACHINE_SOUND | MACHINE_GAMEPORT | MACHINE_APM,
.flags = MACHINE_IDE | MACHINE_SOUND | MACHINE_GAMEPORT,
.ram = {
.min = 2048,
.max = 32768,
@@ -8620,7 +8620,7 @@ const machine_t machines[] = {
.kbd_device = NULL,
.fdc_device = NULL,
.sio_device = NULL,
.vid_device = &gd5428_vlb_onboard_device,
.vid_device = &gd5428_onboard_vlb_device,
.snd_device = NULL,
.net_device = NULL
},
@@ -8670,7 +8670,7 @@ const machine_t machines[] = {
},
/* Has a VLSI VL82C113A SCAMP Combination I/O which holds the KBC. */
{
.name = "[VLSI 82C486] Tandy Sensation! II (25-1651)/3100/MMPC",
.name = "[VLSI 82C486] Tandy Sensation! II (25-1651)",
.internal_name = "sensation2",
.type = MACHINE_TYPE_486_S2,
.chipset = MACHINE_CHIPSET_VLSI_VL82C486,
@@ -8690,7 +8690,7 @@ const machine_t machines[] = {
.max_multi = 0
},
.bus_flags = MACHINE_PS2,
.flags = MACHINE_IDE | MACHINE_VIDEO | MACHINE_APM,
.flags = MACHINE_IDE | MACHINE_VIDEO,
.ram = {
.min = 2048,
.max = 65536,
@@ -8708,7 +8708,7 @@ const machine_t machines[] = {
.kbd_device = NULL,
.fdc_device = NULL,
.sio_device = NULL,
.vid_device = &gd5428_vlb_onboard_device,
.vid_device = &gd5428_vlb_onboard_tandy_device,
.snd_device = NULL,
.net_device = NULL
},

1
src/sound/snd_sensation.c
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@@ -808,6 +808,7 @@ sensation_visdac_read(uint16_t port, void *priv)
sensation_t *visdac = (sensation_t *) priv;
uint8_t ret;
ret = 0xff;
switch (port & 0xF) {
case 0x00:

54
src/video/vid_cl54xx.c
View File

@@ -1330,7 +1330,10 @@ gd54xx_in(uint16_t addr, void *priv)
/* Scratch Pad 1 (Memory size for 5402/542x) */
ret = svga->seqregs[0x0a] & ~0x1a;
if (svga->crtc[0x27] == CIRRUS_ID_CLGD5402) {
ret |= 0x01; /*512K of memory*/
if ((gd54xx->vram_size >> 10) == 512)
ret |= 0x01; /*512K of memory*/
else
ret &= 0xfe; /*256K of memory*/
} else if (svga->crtc[0x27] > CIRRUS_ID_CLGD5402) {
switch (gd54xx->vram_size >> 10) {
case 512:
@@ -4439,12 +4442,12 @@ gd54xx_init(const device_t *info)
gd54xx->vram_size = vram << 10;
} else {
if (id <= CIRRUS_ID_CLGD5428) {
if ((id == CIRRUS_ID_CLGD5426) && (info->local & 0x200))
if ((id == CIRRUS_ID_CLGD5428) && (info->local & 0x200) && (info->local & 0x1000))
vram = 1024;
else if ((id == CIRRUS_ID_CLGD5426) && (info->local & 0x200))
vram = 1024;
else if (id == CIRRUS_ID_CLGD5401)
vram = 256;
else if (id == CIRRUS_ID_CLGD5402)
vram = 512;
else
vram = device_get_config_int("memory");
@@ -4780,6 +4783,25 @@ gd54xx_force_redraw(void *priv)
}
// clang-format off
static const device_config_t gd5402_config[] = {
{
.name = "memory",
.description = "Memory size",
.type = CONFIG_SELECTION,
.default_string = NULL,
.default_int = 512,
.file_filter = NULL,
.spinner = { 0 },
.selection = {
{ .description = "256 KB", .value = 256 },
{ .description = "512 KB", .value = 512 },
{ .description = "" }
},
.bios = { { 0 } }
},
{ .name = "", .description = "", .type = CONFIG_END }
};
static const device_config_t gd542x_config[] = {
{
.name = "memory",
@@ -5027,7 +5049,7 @@ const device_t gd5402_isa_device = {
.available = gd5402_available,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = NULL,
.config = gd5402_config,
};
const device_t gd5402_onboard_device = {
@@ -5041,7 +5063,7 @@ const device_t gd5402_onboard_device = {
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = NULL,
.config = gd5402_config,
};
const device_t gd5402_onboard_commodore_device = {
@@ -5055,7 +5077,7 @@ const device_t gd5402_onboard_commodore_device = {
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = NULL,
.config = gd5402_config,
};
const device_t gd5420_isa_device = {
@@ -5281,7 +5303,7 @@ const device_t gd5428_onboard_device = {
.available = gd5428_isa_available,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = gd5426_config
.config = gd542x_config
};
const device_t gd5428_vlb_onboard_device = {
@@ -5299,7 +5321,7 @@ const device_t gd5428_vlb_onboard_device = {
};
const device_t gd5428_onboard_vlb_device = {
.name = "Cirrus Logic GD5428 (VLB) (On-Board) (Dell)",
.name = "Cirrus Logic GD5428 (VLB) (On-Board) (1MB)",
.internal_name = "cl_gd5428_onboard_vlb",
.flags = DEVICE_VLB,
.local = CIRRUS_ID_CLGD5428 | 0x200,
@@ -5312,6 +5334,20 @@ const device_t gd5428_onboard_vlb_device = {
.config = gd542x_config
};
const device_t gd5428_vlb_onboard_tandy_device = {
.name = "Cirrus Logic GD5428 (VLB) (On-Board) (Tandy)",
.internal_name = "cl_gd5428_vlb_onboard_tandy",
.flags = DEVICE_VLB,
.local = CIRRUS_ID_CLGD5428 | 0x200 | 0x1000,
.init = gd54xx_init,
.close = gd54xx_close,
.reset = gd54xx_reset,
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = NULL
};
const device_t gd5429_isa_device = {
.name = "Cirrus Logic GD5429 (ISA)",
.internal_name = "cl_gd5429_isa",