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Default handler for int 1 single stepping.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@552
This commit is contained in:
Sjoerd van der Berg 2002-11-30 12:15:16 +00:00
parent 96edd67bb7
commit e4d34f171d
1 changed files with 16 additions and 6 deletions
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22
src/ints/bios.cpp
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@ -25,6 +25,7 @@
#include "pic.h"
static Bitu call_int1a,call_int11,call_int8,call_int17,call_int12,call_int15,call_int1c;
static Bitu call_int1;
static Bitu INT1A_Handler(void) {
switch (reg_ah) {
@ -212,12 +213,16 @@ static Bitu INT15_Handler(void) {
CALLBACK_SCF(false);
}
return CBRET_NONE;
};
static void INT15_StartUp(void) {
/* TODO Start the time correctly */
};
}
static Bitu INT1_Single_Step(void) {
static bool warned=false;
if (!warned) {
warned=true;
LOG_WARN("INT 1:Single Step called");
}
return CBRET_NONE;
}
void BIOS_SetupKeyboard(void);
void BIOS_SetupDisks(void);
@ -262,10 +267,15 @@ void BIOS_Init(Section* sec) {
CALLBACK_Setup(call_int1a,&INT1A_Handler,CB_IRET_STI);
RealSetVec(0x1A,CALLBACK_RealPointer(call_int1a));
/* INT 1C System Timer tick called from INT 8 */
call_int1c=CALLBACK_Allocate();
call_int1c=CALLBACK_Allocate();
CALLBACK_Setup(call_int1c,&INT1C_Handler,CB_IRET);
RealSetVec(0x1C,CALLBACK_RealPointer(call_int1c));
/* Some defeault CPU error interrupt handlers */
call_int1=CALLBACK_Allocate();
CALLBACK_Setup(call_int1,&INT1_Single_Step,CB_IRET);
RealSetVec(0x1,CALLBACK_RealPointer(call_int1));
}