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Add v0.7 source

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This commit is contained in:
TomW 2013-04-21 14:54:35 +01:00
commit 3c253c2cf8
188 changed files with 52566 additions and 0 deletions
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66
src/vid_unk_ramdac.c Normal file
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@ -0,0 +1,66 @@
/*It is unknown exactly what RAMDAC this is
It is possibly a Sierra 1502x
It's addressed by the TLIVESA1 driver for ET4000*/
#include "ibm.h"
#include "video.h"
#include "vid_svga.h"
#include "vid_unk_ramdac.h"
static int unk_state=0;
static uint8_t unk_ctrl;
void unk_ramdac_out(uint16_t addr, uint8_t val)
{
//pclog("OUT RAMDAC %04X %02X\n",addr,val);
switch (addr)
{
case 0x3C6:
if (unk_state == 4)
{
unk_state = 0;
unk_ctrl = val;
switch ((val&1)|((val&0xE0)>>4))
{
case 0: case 1: case 2: case 3:
bpp = 8;
break;
case 6: case 7:
bpp = 24;
break;
case 8: case 9: case 0xA: case 0xB:
bpp = 15;
break;
case 0xC: case 0xD: case 0xE: case 0xF:
bpp = 16;
break;
}
return;
}
unk_state = 0;
break;
case 0x3C7: case 0x3C8: case 0x3C9:
unk_state = 0;
break;
}
svga_out(addr,val);
}
uint8_t unk_ramdac_in(uint16_t addr)
{
//pclog("IN RAMDAC %04X\n",addr);
switch (addr)
{
case 0x3C6:
if (unk_state == 4)
{
unk_state = 0;
return unk_ctrl;
}
unk_state++;
break;
case 0x3C7: case 0x3C8: case 0x3C9:
unk_state = 0;
break;
}
return svga_in(addr);
}