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Fix CGA color select register writing in machine=vga mode

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2206
This commit is contained in:
Sjoerd van der Berg 2005-05-03 20:33:55 +00:00
parent 8008c426fb
commit 4751e234c0
1 changed files with 22 additions and 2 deletions
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24
src/ints/int10_pal.cpp
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@ -174,12 +174,32 @@ void INT10_SetBackgroundBorder(Bit8u val) {
Bitu temp=real_readb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL);
temp=(temp & 0xe0) | (val & 0x1f);
real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,temp);
IO_Write(0x3d9,temp);
if (machine == MCH_CGA || machine == MCH_TANDY)
IO_Write(0x3d9,temp);
else if (machine == MCH_VGA) {
val = ((val << 1) & 0x10) | (val & 0x7);
INT10_SetSinglePaletteRegister( 0, val );
val = (temp & 0x10) | 2 | ((temp & 0x20) >> 5);
INT10_SetSinglePaletteRegister( 1, val );
val+=2;
INT10_SetSinglePaletteRegister( 2, val );
val+=2;
INT10_SetSinglePaletteRegister( 3, val );
}
}
void INT10_SetColorSelect(Bit8u val) {
Bitu temp=real_readb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL);
temp=(temp & 0xdf) | ((val & 1) ? 0x20 : 0x0);
real_writeb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAL,temp);
IO_Write(0x3d9,temp);
if (machine == MCH_CGA || machine == MCH_TANDY)
IO_Write(0x3d9,temp);
else if (machine == MCH_VGA) {
val = (temp & 0x10) | 2 | val;
INT10_SetSinglePaletteRegister( 1, val );
val+=2;
INT10_SetSinglePaletteRegister( 2, val );
val+=2;
INT10_SetSinglePaletteRegister( 3, val );
}
}