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use phys_write for setting up callback in rom area.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1116
This commit is contained in:
Sjoerd van der Berg 2003-07-14 08:25:18 +00:00
parent 3820b14384
commit 9f5a0c6859
1 changed files with 5 additions and 5 deletions
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10
src/ints/mouse.cpp
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@ -649,11 +649,11 @@ void CreateMouseCallback(void)
// Create a mouse vector with weird address
// for strange mouse detection routines in Sim City & Wasteland
Bit16u ofs = call_int33<<4;
real_writeb((Bit16u)CB_SEG,ofs+0,(Bit8u)0x90); //NOP
real_writeb((Bit16u)CB_SEG,ofs+1,(Bit8u)0xFE); //GRP 4
real_writeb((Bit16u)CB_SEG,ofs+2,(Bit8u)0x38); //Extra Callback instruction
real_writew((Bit16u)CB_SEG,ofs+3,call_int33); //The immediate word
real_writeb((Bit16u)CB_SEG,ofs+5,(Bit8u)0xCF); //An IRET Instruction
phys_writeb(CB_BASE+ofs+0,(Bit8u)0x90); //NOP
phys_writeb(CB_BASE+ofs+1,(Bit8u)0xFE); //GRP 4
phys_writeb(CB_BASE+ofs+2,(Bit8u)0x38); //Extra Callback instruction
phys_writew(CB_BASE+ofs+3,call_int33); //The immediate word
phys_writeb(CB_BASE+ofs+5,(Bit8u)0xCF); //An IRET Instruction
// Write weird vector
WriteMouseIntVector();
};