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SVGA hskew

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This commit is contained in:
Jasmine Iwanek
2023-08-06 20:29:39 -04:00
parent cb24ee27cb
commit 01ffb60df8
7 changed files with 306 additions and 32 deletions
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8
src/video/vid_et4000w32.c
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@@ -457,6 +457,7 @@ et4000w32p_recalctimings(svga_t *svga)
}
}
#if 0
if (svga->adv_flags & FLAG_NOSKEW) {
/* On the Cardex ET4000/W32p-based cards, adjust text mode clocks by 1. */
if (!(svga->gdcreg[6] & 1) && !(svga->attrregs[0x10] & 1)) { /* Text mode */
@@ -480,6 +481,7 @@ et4000w32p_recalctimings(svga_t *svga)
}
}
}
#endif
if (et4000->type == ET4000W32) {
if ((svga->gdcreg[6] & 1) || (svga->attrregs[0x10] & 1)) {
@@ -2561,6 +2563,9 @@ et4000w32p_pci_read(UNUSED(int func), int addr, void *priv)
{
et4000w32p_t *et4000 = (et4000w32p_t *) priv;
if (func > 0)
return 0xff;
addr &= 0xff;
switch (addr) {
@@ -2618,6 +2623,9 @@ et4000w32p_pci_write(UNUSED(int func), int addr, uint8_t val, void *priv)
et4000w32p_t *et4000 = (et4000w32p_t *) priv;
svga_t *svga = &et4000->svga;
if (func > 0)
return;
addr &= 0xff;
switch (addr) {