mirrors/86Box
1
0
Fork 0
mirror of https://github.com/86Box/86Box.git synced 2025-01-23 09:42:47 -05:00
Code Issues Projects Releases Packages Wiki Activity

HT216-32: Apply the blanking calculation.

Browse source
This commit is contained in:
OBattler 2024-01-10 23:25:16 +01:00
parent 03a1f783f2
commit 0090000f85
1 changed files with 11 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/video/vid_ht216.c
View file

@ -312,6 +312,10 @@ ht216_out(uint16_t addr, uint8_t val, void *priv)
ht216_remap(ht216); ht216_remap(ht216);
break; break;
case 0xca:
svga_recalctimings(svga);
break;
case 0xc9: case 0xc9:
case 0xcf: case 0xcf:
ht216_remap(ht216); ht216_remap(ht216);
@ -321,6 +325,7 @@ ht216_out(uint16_t addr, uint8_t val, void *priv)
svga->adv_flags &= ~FLAG_RAMDAC_SHIFT; svga->adv_flags &= ~FLAG_RAMDAC_SHIFT;
if (val & 0x04) if (val & 0x04)
svga->adv_flags |= FLAG_RAMDAC_SHIFT; svga->adv_flags |= FLAG_RAMDAC_SHIFT;
svga_recalctimings(svga);
fallthrough; fallthrough;
/*Bank registers*/ /*Bank registers*/
case 0xe8: case 0xe8:
@ -688,7 +693,7 @@ ht216_recalctimings(svga_t *svga)
if (!(svga->crtc[1] & 1)) if (!(svga->crtc[1] & 1))
svga->hdisp--; svga->hdisp--;
svga->hdisp++; svga->hdisp++;
svga->hdisp *= (svga->seqregs[1] & 8) ? 16 : 8; svga->hdisp *= svga->dots_per_clock;
svga->rowoffset <<= 1; svga->rowoffset <<= 1;
if ((svga->crtc[0x17] & 0x60) == 0x20) /*Would result in a garbled screen with trailing cursor glitches*/ if ((svga->crtc[0x17] & 0x60) == 0x20) /*Would result in a garbled screen with trailing cursor glitches*/
svga->crtc[0x17] |= 0x40; svga->crtc[0x17] |= 0x40;
@ -711,6 +716,9 @@ ht216_recalctimings(svga_t *svga)
svga->vram_display_mask = 0x7ffff; svga->vram_display_mask = 0x7ffff;
else else
svga->vram_display_mask = (ht216->ht_regs[0xf6] & 0x40) ? ht216->vram_mask : 0x3ffff; svga->vram_display_mask = (ht216->ht_regs[0xf6] & 0x40) ? ht216->vram_mask : 0x3ffff;
if (ht216->ht_regs[0xe0] & 0x20)
svga->hblankstart = ((ht216->ht_regs[0xca] >> 2) << 8) + svga->crtc[4] + 1;
} }
static void static void
@ -1466,9 +1474,8 @@ radius_mca_feedb(UNUSED(void *priv))
return 1; return 1;
} }
void void *
* ht216_init(const device_t *info, uint32_t mem_size, int has_rom)
ht216_init(const device_t *info, uint32_t mem_size, int has_rom)
{ {
ht216_t *ht216 = malloc(sizeof(ht216_t)); ht216_t *ht216 = malloc(sizeof(ht216_t));
svga_t *svga; svga_t *svga;