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Added correct clock support for S3 Trio64 (Number Nine 9FX).

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Seperated TGUI9440 and TVGA8900D implementations.
Modes > 8 bpp now handled more logically in SVGA core.
Fixed broken status window for most SVGA cards.
Masking of address on 'legacy' VGA memory ranges now handled better.
This commit is contained in:
TomW 2013-11-20 21:34:09 +00:00
commit a8b286a2ec
21 changed files with 1382 additions and 937 deletions
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18
src/vid_cl5429.c
View file

@ -17,6 +17,7 @@ typedef struct gd5429_t
svga_t svga;
uint32_t bank[2];
uint32_t mask;
struct
{
@ -228,19 +229,23 @@ void gd5429_recalc_mapping(gd5429_t *gd5429)
case 0x0: /*128k at A0000*/
mem_mapping_set_addr(&svga->mapping, 0xa0000, 0x10000);
mem_mapping_disable(&gd5429->mmio_mapping);
svga->banked_mask = 0xffff;
break;
case 0x4: /*64k at A0000*/
mem_mapping_set_addr(&svga->mapping, 0xa0000, 0x10000);
if (svga->seqregs[0x17] & 0x04)
mem_mapping_set_addr(&gd5429->mmio_mapping, 0xb8000, 0x00100);
svga->banked_mask = 0xffff;
break;
case 0x8: /*32k at B0000*/
mem_mapping_set_addr(&svga->mapping, 0xb0000, 0x08000);
mem_mapping_disable(&gd5429->mmio_mapping);
svga->banked_mask = 0x7fff;
break;
case 0xC: /*32k at B8000*/
mem_mapping_set_addr(&svga->mapping, 0xb8000, 0x08000);
mem_mapping_disable(&gd5429->mmio_mapping);
svga->banked_mask = 0x7fff;
break;
}
}
@ -294,7 +299,9 @@ void gd5429_write_linear(uint32_t addr, uint8_t val, void *p);
void gd5429_write(uint32_t addr, uint8_t val, void *p)
{
gd5429_t *gd5429 = (gd5429_t *)p;
svga_t *svga = &gd5429->svga;
// pclog("gd5429_write : %05X %02X ", addr, val);
addr &= svga->banked_mask;
addr = (addr & 0x7fff) + gd5429->bank[(addr >> 15) & 1];
// pclog("%08X\n", addr);
gd5429_write_linear(addr, val, p);
@ -303,8 +310,10 @@ void gd5429_write(uint32_t addr, uint8_t val, void *p)
uint8_t gd5429_read(uint32_t addr, void *p)
{
gd5429_t *gd5429 = (gd5429_t *)p;
svga_t *svga = &gd5429->svga;
uint8_t ret;
// pclog("gd5429_read : %05X ", addr);
addr &= svga->banked_mask;
addr = (addr & 0x7fff) + gd5429->bank[(addr >> 15) & 1];
ret = svga_read_linear(addr, &gd5429->svga);
// pclog("%08X %02X\n", addr, ret);
@ -850,6 +859,13 @@ void gd5429_force_redraw(void *p)
gd5429->svga.fullchange = changeframecount;
}
int gd5429_add_status_info(char *s, int max_len, void *p)
{
gd5429_t *gd5429 = (gd5429_t *)p;
return svga_add_status_info(s, max_len, &gd5429->svga);
}
device_t gd5429_device =
{
"Cirrus Logic GD5429",
@ -858,5 +874,5 @@ device_t gd5429_device =
NULL,
gd5429_speed_changed,
gd5429_force_redraw,
svga_add_status_info
gd5429_add_status_info
};