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(MESS) Fixed video memory paging (no whatsnew)

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mahlemiut 2012-09-13 01:52:22 +00:00
parent 83c97dac26
commit 9a27128e68
1 changed files with 11 additions and 3 deletions
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14
src/emu/video/pc_vga.c
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@ -5011,9 +5011,17 @@ WRITE8_DEVICE_HANDLER(ati_port_ext_w)
vga.crtc.cursor_addr = (vga.crtc.cursor_addr & 0xfffeffff) | ((data & 0x04) << 14);
break;
case 0x32: // memory page select
svga.bank_r = ((data & 0x01) << 3) | ((data & 0xe0) >> 5);
svga.bank_w = ((data & 0x1e) >> 1);
//logerror("ATI: Memory Page Select write %02x\n",data);
if(ati.ext_reg[0x3e] & 0x08)
{
svga.bank_r = ((data & 0x01) << 3) | ((data & 0xe0) >> 5);
svga.bank_w = ((data & 0x1e) >> 1);
}
else
{
svga.bank_r = ((data & 0x1e) >> 1);
svga.bank_w = ((data & 0x1e) >> 1);
}
logerror("ATI: Memory Page Select write %02x (read: %i write %i)\n",data,svga.bank_r,svga.bank_w);
break;
case 0x33: // EEPROM
if(data & 0x04)