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Onboard video memory config overhaul part 1: Cirrus cards

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win2kgamer
2026-02-26 22:10:03 -06:00
parent 62c43d8699
commit 7da97a8987
3 changed files with 60 additions and 7 deletions
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2
src/include/86box/video.h
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@@ -388,6 +388,7 @@ extern const device_t gd5426_onboard_isa_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_pb450_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;
@@ -410,6 +411,7 @@ extern const device_t gd5434_vlb_device;
extern const device_t gd5434_pci_device;
extern const device_t gd5436_pci_device;
extern const device_t gd5436_onboard_pci_device;
extern const device_t gd5436_onboard_pci_ics_device;
extern const device_t gd5440_pci_device;
extern const device_t gd5440_onboard_pci_device;
extern const device_t gd5446_pci_device;

4
src/machine/machine_table.c
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@@ -11070,7 +11070,7 @@ const machine_t machines[] = {
.device = &sb486pv_device,
.kbd_device = NULL,
.fdc_device = NULL,
.vid_device = &gd5436_onboard_pci_device,
.vid_device = &gd5436_onboard_pci_ics_device,
.snd_device = NULL,
.net_device = NULL
},
@@ -11213,7 +11213,7 @@ const machine_t machines[] = {
.device = &pb450_device,
.kbd_device = NULL,
.fdc_device = NULL,
.vid_device = &gd5428_vlb_onboard_device,
.vid_device = &gd5428_vlb_onboard_pb450_device,
.snd_device = NULL,
.net_device = NULL
},

61
src/video/vid_cl54xx.c
View File

@@ -4439,6 +4439,8 @@ gd54xx_init(const device_t *info)
vram = 1024;
else if ((id == CIRRUS_ID_CLGD5426) && (info->local & 0x200) && (info->local & 0x1000))
vram = 1024;
else if ((id == CIRRUS_ID_CLGD5420) && (info->local & 0x200))
vram = 512;
else if (id == CIRRUS_ID_CLGD5401)
vram = 256;
else
@@ -4446,7 +4448,10 @@ gd54xx_init(const device_t *info)
gd54xx->vram_size = vram << 10;
} else {
vram = device_get_config_int("memory");
if ((id == CIRRUS_ID_CLGD5436) && (info->local & 0x200) && (info->local & 0x1000))
vram = 1;
else
vram = device_get_config_int("memory");
gd54xx->vram_size = vram << 20;
}
}
@@ -4834,6 +4839,25 @@ static const device_config_t gd5426_config[] = {
{ .name = "", .description = "", .type = CONFIG_END }
};
static const device_config_t gd5428_1mb_config[] = {
{
.name = "memory",
.description = "Memory size",
.type = CONFIG_SELECTION,
.default_string = NULL,
.default_int = 2048,
.file_filter = NULL,
.spinner = { 0 },
.selection = {
{ .description = "1 MB", .value = 1024 },
{ .description = "2 MB", .value = 2048 },
{ .description = "" }
},
.bios = { { 0 } }
},
{ .name = "", .description = "", .type = CONFIG_END }
};
static const device_config_t gd5429_config[] = {
{
.name = "memory",
@@ -4969,13 +4993,12 @@ static const device_config_t gd5434_onboard_config[] = {
.description = "Memory size",
.type = CONFIG_SELECTION,
.default_string = NULL,
.default_int = 4,
.default_int = 2,
.file_filter = NULL,
.spinner = { 0 },
.selection = {
{ .description = "1 MB", .value = 1 },
{ .description = "2 MB", .value = 2 },
{ .description = "4 MB", .value = 4 },
{ .description = "" }
},
.bios = { { 0 } }
@@ -5098,7 +5121,7 @@ const device_t gd5420_onboard_device = {
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = gd542x_config,
.config = NULL,
};
const device_t gd5422_isa_device = {
@@ -5341,6 +5364,20 @@ const device_t gd5428_onboard_vlb_device = {
.config = gd542x_config
};
const device_t gd5428_vlb_onboard_pb450_device = {
.name = "Cirrus Logic GD5428 (VLB) (On-Board) (PB450)",
.internal_name = "cl_gd5428_vlb_onboard_pb450",
.flags = DEVICE_VLB,
.local = CIRRUS_ID_CLGD5428 | 0x200,
.init = gd54xx_init,
.close = gd54xx_close,
.reset = gd54xx_reset,
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = gd5428_1mb_config
};
const device_t gd5428_vlb_onboard_tandy_device = {
.name = "Cirrus Logic GD5428 (VLB) (On-Board) (Tandy)",
.internal_name = "cl_gd5428_vlb_onboard_tandy",
@@ -5536,7 +5573,21 @@ const device_t gd5436_onboard_pci_device = {
.available = NULL,
.speed_changed = gd54xx_speed_changed,
.force_redraw = gd54xx_force_redraw,
.config = gd5434_config
.config = gd5434_onboard_config
};
const device_t gd5436_onboard_pci_ics_device = {
.name = "Cirrus Logic GD5436 (PCI) (On-Board) (ICS)",
.internal_name = "cl_gd5436_onboard_pci_ics",
.flags = DEVICE_PCI,
.local = CIRRUS_ID_CLGD5436 | 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 gd5436_pci_device = {