void ati68860_ramdac_out(uint16_t addr, uint8_t val, ati68860_ramdac_t *ramdac, svga_t *svga)
{
// pclog("ati68860_out : addr %04X val %02X %04X:%04X\n", addr, val, CS,pc);
switch (addr)
{
case 0:
svga_out(0x3c8, val, svga);
break;
case 1:
svga_out(0x3c9, val, svga);
break;
case 2:
svga_out(0x3c6, val, svga);
break;
case 3:
svga_out(0x3c7, val, svga);
break;
default:
ramdac->regs[addr & 0xf] = val;
switch (addr & 0xf)
{
case 0xb:
switch (val)
{
case 0x82:
ramdac->render = svga_render_4bpp_highres;
break;
case 0x83:
ramdac->render = svga_render_8bpp_highres;
break;
case 0xa0:
ramdac->render = svga_render_15bpp_highres;
break;
case 0xa1: case 0xb1:
ramdac->render = svga_render_16bpp_highres;
break;
case 0xc0: case 0xd0:
ramdac->render = svga_render_24bpp_highres;
break;
case 0xe2:
ramdac->render = svga_render_32bpp_highres;
break;
case 0xf2:
ramdac->render = svga_render_RGBA8888_highres;
break;
default:
ramdac->render = svga_render_8bpp_highres;
break;
}
break;
}
break;
}
}
void vga_out(uint16_t addr, uint8_t val, void *p)
{
vga_t *vga = (vga_t *)p;
svga_t *svga = &vga->svga;
uint8_t old;
// pclog("vga_out : %04X %02X %04X:%04X %02X %i\n", addr, val, CS,pc, ram[0x489], ins);
if (((addr & 0xfff0) == 0x3d0 || (addr & 0xfff0) == 0x3b0) && !(svga->miscout & 1))
addr ^= 0x60;
switch (addr)
{
case 0x3D4:
svga->crtcreg = val & 0x1f;
return;
case 0x3D5:
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)
{
if (svga->crtcreg < 0xe || svga->crtcreg > 0x10)
{
svga->fullchange = changeframecount;
svga_recalctimings(svga);
}
}
break;
}
svga_out(addr, val, svga);
}
void tvga_out(uint16_t addr, uint8_t val, void *p)
{
tvga_t *tvga = (tvga_t *)p;
svga_t *svga = &tvga->svga;
uint8_t old;
// pclog("tvga_out : %04X %02X %04X:%04X %i\n", addr, val, CS,pc, svga->bpp);
if (((addr&0xFFF0) == 0x3D0 || (addr&0xFFF0) == 0x3B0) && !(svga->miscout & 1)) addr ^= 0x60;
switch (addr)
{
case 0x3C5:
switch (svga->seqaddr & 0xf)
{
case 0xB:
tvga->oldmode=1;
break;
case 0xC:
if (svga->seqregs[0xe] & 0x80)
svga->seqregs[0xc] = val;
break;
case 0xd:
if (tvga->oldmode)
tvga->oldctrl2 = val;
else
{
tvga->newctrl2 = val;
svga_recalctimings(svga);
}
break;
case 0xE:
if (tvga->oldmode)
tvga->oldctrl1 = val;
else
{
svga->seqregs[0xe] = val ^ 2;
svga->write_bank = (svga->seqregs[0xe] & 0xf) * 65536;
if (!(svga->gdcreg[0xf] & 1))
svga->read_bank = svga->write_bank;
}
return;
}
break;
case 0x3C6: case 0x3C7: case 0x3C8: case 0x3C9:
tkd8001_ramdac_out(addr, val, &tvga->ramdac, svga);
return;
case 0x3CF:
switch (svga->gdcaddr & 15)
{
case 0xE:
svga->gdcreg[0xe] = val ^ 2;
if ((svga->gdcreg[0xf] & 1) == 1)
svga->read_bank = (svga->gdcreg[0xe] & 0xf) * 65536;
break;
case 0xF:
if (val & 1) svga->read_bank = (svga->gdcreg[0xe] & 0xf) *65536;
else svga->read_bank = (svga->seqregs[0xe] & 0xf) *65536;
svga->write_bank = (svga->seqregs[0xe] & 0xf) * 65536;
break;
}
break;
case 0x3D4:
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
// if (svga->crtcreg != 0xC && svga->crtcreg != 0xE && svga->crtcreg != 0xF) pclog("CRTC R%02X = %02X %04X:%04X\n", svga->crtcreg, val, CS, pc);
if (old != val)
{
if (svga->crtcreg < 0xE || svga->crtcreg > 0x10)
{
svga->fullchange = changeframecount;
svga_recalctimings(svga);
}
}
switch (svga->crtcreg)
{
case 0x1e:
svga->vrammask = (val & 0x80) ? tvga->vram_mask : 0x3ffff;
break;
}
return;
case 0x3D8:
tvga->tvga_3d8 = val;
if (svga->gdcreg[0xf] & 4)
{
svga->write_bank = (val & 0x1f) * 65536;
// pclog("SVGAWBANK 3D8 %08X %04X:%04X\n",svgawbank,CS,pc);
if (!(svga->gdcreg[0xf] & 1))
{
svga->read_bank = (val & 0x1f) * 65536;
// pclog("SVGARBANK 3D8 %08X %04X:%04X\n",svgarbank,CS,pc);
}
}
return;
case 0x3D9:
tvga->tvga_3d9=val;
if ((svga->gdcreg[0xf] & 5) == 5)
{
svga->read_bank = (val & 0x1F) * 65536;
// pclog("SVGARBANK 3D9 %08X %04X:%04X\n",svgarbank,CS,pc);
}
return;
}
svga_out(addr, val, svga);
}
void ati68860_ramdac_out(uint16_t addr, uint8_t val, ati68860_ramdac_t *ramdac, svga_t *svga)
{
switch (addr)
{
case 0:
svga_out(0x3c8, val, svga);
break;
case 1:
svga_out(0x3c9, val, svga);
break;
case 2:
svga_out(0x3c6, val, svga);
break;
case 3:
svga_out(0x3c7, val, svga);
break;
default:
ramdac->regs[addr & 0xf] = val;
switch (addr & 0xf)
{
case 0x4:
ramdac->dac_write = val;
ramdac->dac_pos = 0;
break;
case 0x5:
switch (ramdac->dac_pos)
{
case 0:
ramdac->dac_r = val;
ramdac->dac_pos++;
break;
case 1:
ramdac->dac_g = val;
ramdac->dac_pos++;
break;
case 2:
if (ramdac->dac_write > 1)
break;
ramdac->pal[ramdac->dac_write].r = ramdac->dac_r;
ramdac->pal[ramdac->dac_write].g = ramdac->dac_g;
ramdac->pal[ramdac->dac_write].b = val;
if (ramdac->ramdac_type == RAMDAC_8BIT)
ramdac->pallook[ramdac->dac_write] = makecol32(ramdac->pal[ramdac->dac_write].r, ramdac->pal[ramdac->dac_write].g, ramdac->pal[ramdac->dac_write].b);
else
ramdac->pallook[ramdac->dac_write] = makecol32((ramdac->pal[ramdac->dac_write].r & 0x3f) * 4, (ramdac->pal[ramdac->dac_write].g & 0x3f) * 4, (ramdac->pal[ramdac->dac_write].b & 0x3f) * 4);
ramdac->dac_pos = 0;
ramdac->dac_write = (ramdac->dac_write + 1) & 255;
break;
}
break;
case 0xb:
switch (val)
{
case 0x82:
ramdac->render = svga_render_4bpp_highres;
break;
case 0x83:
ramdac->render = svga_render_8bpp_highres;
break;
case 0xa0: case 0xb0:
ramdac->render = svga_render_15bpp_highres;
break;
case 0xa1: case 0xb1:
ramdac->render = svga_render_16bpp_highres;
break;
case 0xc0: case 0xd0:
ramdac->render = svga_render_24bpp_highres;
break;
case 0xe2: case 0xf7:
ramdac->render = svga_render_32bpp_highres;
break;
case 0xe3:
ramdac->render = svga_render_ABGR8888_highres;
break;
case 0xf2:
ramdac->render = svga_render_RGBA8888_highres;
break;
default:
ramdac->render = svga_render_8bpp_highres;
break;
}
break;
case 0xc:
svga_set_ramdac_type(svga, (val & 1) ? RAMDAC_6BIT : RAMDAC_8BIT);
break;
}
break;
}
}
