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Minor ATi fixes.

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This commit is contained in:
OBattler
2024-01-11 02:07:21 +01:00
parent c4aa4e8889
commit 3010ce4f8a
2 changed files with 9 additions and 4 deletions
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9
src/video/vid_ati28800.c
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@@ -407,7 +407,8 @@ ati28800_recalctimings(svga_t *svga)
ati28800_t *ati28800 = (ati28800_t *) svga->priv;
int clock_sel;
clock_sel = ((svga->miscout >> 2) & 3) | ((ati28800->regs[0xbe] & 0x10) >> 1) | ((ati28800->regs[0xb9] & 2) << 1);
clock_sel = ((svga->miscout >> 2) & 3) | ((ati28800->regs[0xbe] & 0x10) >> 1) |
((ati28800->regs[0xb9] & 2) << 1);
if (ati28800->regs[0xa3] & 0x10)
svga->ma_latch |= 0x10000;
@@ -447,7 +448,11 @@ ati28800_recalctimings(svga_t *svga)
if (!svga->scrblank && (svga->crtc[0x17] & 0x80) && svga->attr_palette_enable) {
if ((svga->gdcreg[6] & 1) || (svga->attrregs[0x10] & 1)) {
svga->clock = (cpuclock * (double) (1ULL << 32)) / svga->getclock(clock_sel, svga->clock_gen);
ati28800_log("SEQREG1 bit 3=%x. gdcreg5 bits 5-6=%02x, 4bit pel=%02x, planar 16color=%02x, apa mode=%02x, attregs10 bit 7=%02x.\n", svga->seqregs[1] & 8, svga->gdcreg[5] & 0x60, ati28800->regs[0xb3] & 0x40, ati28800->regs[0xac] & 0x40, ati28800->regs[0xb6] & 0x18, ati28800->svga.attrregs[0x10] & 0x80);
ati28800_log("SEQREG1 bit 3=%x. gdcreg5 bits 5-6=%02x, 4bit pel=%02x, "
"planar 16color=%02x, apa mode=%02x, attregs10 bit 7=%02x.\n",
svga->seqregs[1] & 8, svga->gdcreg[5] & 0x60,
ati28800->regs[0xb3] & 0x40, ati28800->regs[0xac] & 0x40,
ati28800->regs[0xb6] & 0x18, ati28800->svga.attrregs[0x10] & 0x80);
switch (svga->gdcreg[5] & 0x60) {
case 0x00:
if (svga->seqregs[1] & 8) /*Low res (320)*/

4
src/video/vid_ati_mach8.c
View File

@@ -2842,8 +2842,8 @@ mach_recalctimings(svga_t *svga)
}
}
if (ati28800->regs[0xad] & 0x08)
svga->hblankstart = ((ati28800->regs[0x0d] >> 2) << 8) + svga->crtc[4] + 1;
if (mach->regs[0xad] & 0x08)
svga->hblankstart = ((mach->regs[0x0d] >> 2) << 8) + svga->crtc[4] + 1;
}
static void