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use phys_write for rom area.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1117
This commit is contained in:
Sjoerd van der Berg 2003-07-14 08:26:07 +00:00
parent 9f5a0c6859
commit 35188cb6c8
1 changed files with 21 additions and 21 deletions
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42
src/cpu/callback.cpp
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@ -121,23 +121,23 @@ bool CALLBACK_Setup(Bitu callback,CallBack_Handler handler,Bitu type) {
if (callback>=CB_MAX) return false;
switch (type) {
case CB_RETF:
real_writeb((Bit16u)CB_SEG,(callback<<4)+0,(Bit8u)0xFE); //GRP 4
real_writeb((Bit16u)CB_SEG,(callback<<4)+1,(Bit8u)0x38); //Extra Callback instruction
real_writew((Bit16u)CB_SEG,(callback<<4)+2,callback); //The immediate word
real_writeb((Bit16u)CB_SEG,(callback<<4)+4,(Bit8u)0xCB); //A RETF Instruction
phys_writeb(CB_BASE+(callback<<4)+0,(Bit8u)0xFE); //GRP 4
phys_writeb(CB_BASE+(callback<<4)+1,(Bit8u)0x38); //Extra Callback instruction
phys_writew(CB_BASE+(callback<<4)+2,callback); //The immediate word
phys_writeb(CB_BASE+(callback<<4)+4,(Bit8u)0xCB); //A RETF Instruction
break;
case CB_IRET:
real_writeb((Bit16u)CB_SEG,(callback<<4)+0,(Bit8u)0xFE); //GRP 4
real_writeb((Bit16u)CB_SEG,(callback<<4)+1,(Bit8u)0x38); //Extra Callback instruction
real_writew((Bit16u)CB_SEG,(callback<<4)+2,callback); //The immediate word
real_writeb((Bit16u)CB_SEG,(callback<<4)+4,(Bit8u)0xCF); //An IRET Instruction
phys_writeb(CB_BASE+(callback<<4)+0,(Bit8u)0xFE); //GRP 4
phys_writeb(CB_BASE+(callback<<4)+1,(Bit8u)0x38); //Extra Callback instruction
phys_writew(CB_BASE+(callback<<4)+2,callback); //The immediate word
phys_writeb(CB_BASE+(callback<<4)+4,(Bit8u)0xCF); //An IRET Instruction
break;
case CB_IRET_STI:
real_writeb((Bit16u)CB_SEG,(callback<<4)+0,(Bit8u)0xFB); //STI
real_writeb((Bit16u)CB_SEG,(callback<<4)+1,(Bit8u)0xFE); //GRP 4
real_writeb((Bit16u)CB_SEG,(callback<<4)+2,(Bit8u)0x38); //Extra Callback instruction
real_writew((Bit16u)CB_SEG,(callback<<4)+3,callback); //The immediate word
real_writeb((Bit16u)CB_SEG,(callback<<4)+5,(Bit8u)0xCF); //An IRET Instruction
phys_writeb(CB_BASE+(callback<<4)+0,(Bit8u)0xFB); //STI
phys_writeb(CB_BASE+(callback<<4)+1,(Bit8u)0xFE); //GRP 4
phys_writeb(CB_BASE+(callback<<4)+2,(Bit8u)0x38); //Extra Callback instruction
phys_writew(CB_BASE+(callback<<4)+3,callback); //The immediate word
phys_writeb(CB_BASE+(callback<<4)+5,(Bit8u)0xCF); //An IRET Instruction
break;
default:
@ -185,16 +185,16 @@ void CALLBACK_Init(Section* sec) {
/* Setup the Stop Handler */
call_stop=CALLBACK_Allocate();
CallBack_Handlers[call_stop]=stop_handler;
real_writeb((Bit16u)CB_SEG,(call_stop<<4)+0,0xFE);
real_writeb((Bit16u)CB_SEG,(call_stop<<4)+1,0x38);
real_writew((Bit16u)CB_SEG,(call_stop<<4)+2,call_stop);
phys_writeb(CB_BASE+(call_stop<<4)+0,0xFE);
phys_writeb(CB_BASE+(call_stop<<4)+1,0x38);
phys_writew(CB_BASE+(call_stop<<4)+2,call_stop);
/* Setup the idle handler */
call_idle=CALLBACK_Allocate();
CallBack_Handlers[call_idle]=stop_handler;
for (i=0;i<=11;i++) real_writeb((Bit16u)CB_SEG,(call_idle<<4)+i,0x90);
real_writeb((Bit16u)CB_SEG,(call_idle<<4)+12,0xFE);
real_writeb((Bit16u)CB_SEG,(call_idle<<4)+13,0x38);
real_writew((Bit16u)CB_SEG,(call_idle<<4)+14,call_idle);
for (i=0;i<=11;i++) phys_writeb(CB_BASE+(call_idle<<4)+i,0x90);
phys_writeb(CB_BASE+(call_idle<<4)+12,0xFE);
phys_writeb(CB_BASE+(call_idle<<4)+13,0x38);
phys_writew(CB_BASE+(call_idle<<4)+14,call_idle);
/* Setup all Interrupt to point to the default handler */
call_default=CALLBACK_Allocate();
@ -204,7 +204,7 @@ void CALLBACK_Init(Section* sec) {
real_writed(0,i*4,CALLBACK_RealPointer(call_default));
}
real_writed(0,0x67*4,CALLBACK_RealPointer(call_default));
real_writed(0,0xf*4,0);
}