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small additions: vga override, lazy fullscreen switching, pci read override

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3768
This commit is contained in:
Sebastian Strohhäcker 2011-12-11 17:30:50 +00:00
parent 41d307292b
commit 77970d28cd
5 changed files with 100 additions and 9 deletions
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7
include/pci_bus.h
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@ -61,16 +61,17 @@ public:
PCI_Device* GetSubdevice(Bits subfct);
Bit16u NumSubdevices(void) {
if (num_subdevices>PCI_MAX_PCIFUNCTIONS-1) return PCI_MAX_PCIFUNCTIONS-1;
return num_subdevices;
if (num_subdevices>PCI_MAX_PCIFUNCTIONS-1) return (Bit16u)(PCI_MAX_PCIFUNCTIONS-1);
return (Bit16u)num_subdevices;
}
Bits GetNextSubdeviceNumber(void) {
if (num_subdevices>=PCI_MAX_PCIFUNCTIONS-1) return -1;
return num_subdevices+1;
return (Bits)num_subdevices+1;
}
virtual Bits ParseReadRegister(Bit8u regnum)=0;
virtual bool OverrideReadRegister(Bit8u regnum, Bit8u* rval, Bit8u* rval_mask)=0;
virtual Bits ParseWriteRegister(Bit8u regnum,Bit8u value)=0;
virtual bool InitializeRegisters(Bit8u registers[256])=0;