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merged Shadow President and Bio Menace into one hack

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2310
This commit is contained in:
Peter Veenstra 2005-09-11 13:32:33 +00:00
parent 3f0ac17ceb
commit 933642091d
1 changed files with 2 additions and 4 deletions
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6
src/dos/dos_memory.cpp
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@ -362,18 +362,16 @@ void DOS_SetupMemory(void) {
* buggy games, which compare against the interrupt table. (probably a
* broken linked list implementation) */
// BioMenace (segment of int2<0x8000)
mem_writeb((DOS_MEM_START+1)<<4,0xcf);// iret
RealSetVec(0x02,(DOS_MEM_START+1)<<16);
callbackhandler.Allocate(&DOS_default_handler,"DOS default int");
//Shadow president wants int 4 to point to this.
real_writeb(0x70,0,(Bit8u)0xFE); //GRP 4
real_writeb(0x70,1,(Bit8u)0x38); //Extra Callback instruction
real_writew(0x70,2,callbackhandler.Get_callback()); //The immediate word
real_writeb(0x70,4,(Bit8u)0xCF); //An IRET Instruction
real_writed(0,0x04*4,0x700000);
//claim some more ints to this location
real_writed(0,0x01*4,0x700000);
real_writed(0,0x02*4,0x700000); //BioMenace
real_writed(0,0x03*4,0x700000);
real_writed(0,0x04*4,0x700000); //Shadow President
// real_writed(0,0x0f*4,0x700000); //Always a tricky one (soundblaster irq)
DOS_MCB mcb((Bit16u)DOS_MEM_START+2);