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Bochs VBE Extensions: Difference between revisions
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Line 14:
* 0xB0C3 - support for getting capabilities, support for using 8 bit DAC
* 0xB0C4 - [TODO: check and describe]
[TODO: if and when 4BPP modes are supported]
== Programming the BGA ==
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=== Miscellaneous ===
[TODO: check and describe
=== Example code ===
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outpw(VBE_DISPI_IOPORT_INDEX, IndexValue);
outpw(VBE_DISPI_IOPORT_DATA, DataValue);
}
unsigned short BgaReadRegister(unsigned short IndexValue)
{
outpw(VBE_DISPI_IOPORT_INDEX, IndexValue);
return inpw(VBE_DISPI_IOPORT_DATA);
}
int BgaIsAvailable(void)
{
return (BgaReadRegister(VBE_DISPI_INDEX_ID) == VBE_DISPI_ID4);
}
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