valter/dosbox-staging
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Extend int29 to include page and colour. Thanks for your input ripsaw8080. Change removesetup to remove the right amount of bytes.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3620
This commit is contained in:
Peter Veenstra 2010-07-10 11:36:39 +00:00
parent 47281bd3e5
commit db66fef419
1 changed files with 11 additions and 7 deletions
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18
src/cpu/callback.cpp
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@ -351,12 +351,16 @@ Bitu CALLBACK_SetupExtra(Bitu callback, Bitu type, PhysPt physAddress, bool use_
phys_writew(physAddress+0x02,(Bit16u)callback); //The immediate word
physAddress+=4;
}
phys_writeb(physAddress+0x00,(Bit8u)0x50); // push ax
phys_writew(physAddress+0x01,(Bit16u)0x0eb4); // mov ah, 0x0e
phys_writew(physAddress+0x03,(Bit16u)0x10cd); // int 10
phys_writeb(physAddress+0x05,(Bit8u)0x58); // pop ax
phys_writeb(physAddress+0x06,(Bit8u)0xcf); //An IRET Instruction
return (use_cb?0x0b:0x07);
phys_writeb(physAddress+0x00,(Bit8u)0x50); // push ax
phys_writeb(physAddress+0x01,(Bit8u)0x53); // push bx
phys_writew(physAddress+0x02,(Bit16u)0x0eb4); // mov ah, 0x0e
phys_writeb(physAddress+0x04,(Bit8u)0xbb); // mov bx,
phys_writew(physAddress+0x05,(Bit16u)0x0007); // 0x0007
phys_writew(physAddress+0x07,(Bit16u)0x10cd); // int 10
phys_writeb(physAddress+0x09,(Bit8u)0x5b); // pop bx
phys_writeb(physAddress+0x0a,(Bit8u)0x58); // pop ax
phys_writeb(physAddress+0x0b,(Bit8u)0xcf); //An IRET Instruction
return (use_cb?0x10:0x0c);
case CB_HOOKABLE:
phys_writeb(physAddress+0x00,(Bit8u)0xEB); //jump near
phys_writeb(physAddress+0x01,(Bit8u)0x03); //offset
@ -456,7 +460,7 @@ Bitu CALLBACK_Setup(Bitu callback,CallBack_Handler handler,Bitu type,PhysPt addr
}
void CALLBACK_RemoveSetup(Bitu callback) {
for (Bitu i = 0;i < 16;i++) {
for (Bitu i = 0;i < CB_SIZE;i++) {
phys_writeb(CALLBACK_PhysPointer(callback)+i ,(Bit8u) 0x00);
}
}