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Added 4 MB VRAM patches for two more known working BIOS'es to ET4000/W32p init.

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This commit is contained in:
OBattler 2016-07-23 04:16:33 +02:00
parent 485d3d9b39
commit 7993b667d2
1 changed files with 12 additions and 7 deletions
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19
src/vid_et4000w32.c
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@ -1239,14 +1239,22 @@ void *et4000w32p_common_init(char *biosfile)
if (vram_size == 4)
{
/* The ROM is hardcoded to 256k sticks, so let's patch it for 1M. */
if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "04/28/95 V2.10N", 15) == 0)
if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "06/28/94 V1.0CN", 15) == 0)
{
bios_offset = 0x01d3;
}
else if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "04/28/95 V2.10N", 15) == 0)
{
bios_offset = 0x0244;
}
if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "05/15/95 V8.00N", 15) == 0)
else if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "05/15/95 V8.00N", 15) == 0)
{
bios_offset = 0x027f;
}
else if (memcmp(&((&et4000->bios_rom)->rom[0x008f]), "05/17/95 V8.00N", 15) == 0)
{
bios_offset = 0x041d;
}
if (bios_offset)
{
checksum_diff = (&et4000->bios_rom)->rom[bios_offset] - 0x03;
@ -1259,11 +1267,8 @@ void *et4000w32p_common_init(char *biosfile)
}
else
{
if (gfxcard != GFX_ET4000W32CS)
{
pclog("No known BIOS detected or BIOS already set to 1 MB DRAM modules, maximum VRAM is 2 MB\n");
vram_size == 2;
}
pclog("No known BIOS detected or BIOS already set to 1 MB DRAM modules, maximum VRAM is 2 MB\n");
vram_size == 2;
}
}
if (PCI)