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Use a HW_interrupt

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1454
This commit is contained in:
Sjoerd van der Berg 2003-11-18 22:43:58 +00:00
parent 16ef4fa54c
commit d7b678ab45
1 changed files with 5 additions and 4 deletions
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9
src/hardware/pic.cpp
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@ -114,6 +114,7 @@ static void write_data(Bit32u port,Bit8u val) {
Bitu i;
switch(pic->icw_index) {
case 0: /* mask register */
LOG(LOG_PIC,LOG_NORMAL)("%d mask %X",port==0x21 ? 0 : 1,val);
for (i=0;i<=7;i++) {
irqs[i+irq_base].masked=(val&(1<<i))>0;
if (irqs[i+irq_base].active && !irqs[i+irq_base].masked) PIC_IRQCheck|=(1 << (i+irq_base));
@ -127,14 +128,14 @@ static void write_data(Bit32u port,Bit8u val) {
#endif
break;
case 1: /* icw2 */
LOG(LOG_PIC,LOG_NORMAL)("%d:Base vector %X",static_cast<Bitu>(port==0x21 ? 0 : 1),static_cast<Bitu>(val));
LOG(LOG_PIC,LOG_NORMAL)("%d:Base vector %X",port==0x21 ? 0 : 1,val);
for (i=0;i<=7;i++) {
irqs[i+irq_base].vector=(val&0xf8)+i;
};
if(pic->icw_index++ >= pic->icw_words) pic->icw_index=0;
break;
case 2: /* icw 3 */
LOG(LOG_PIC,LOG_NORMAL)("%d:ICW 3 %X",static_cast<Bitu>(port==0x21 ? 0 : 1),static_cast<Bitu>(val));
LOG(LOG_PIC,LOG_NORMAL)("%d:ICW 3 %X",port==0x21 ? 0 : 1,val);
if(pic->icw_index++ >= pic->icw_words) pic->icw_index=0;
break;
case 3: /* icw 4 */
@ -148,7 +149,7 @@ static void write_data(Bit32u port,Bit8u val) {
*/
pic->auto_eoi=(val & 0x2)>0;
LOG(LOG_PIC,LOG_NORMAL)("%d:ICW 4 %X",static_cast<Bitu>(port==0x21 ? 0 : 1),static_cast<Bitu>(val));
LOG(LOG_PIC,LOG_NORMAL)("%d:ICW 4 %X",port==0x21 ? 0 : 1,val);
if(pic->icw_index++ >= pic->icw_words) pic->icw_index=0;
break;
default: /* icw 3, and 4*/
@ -227,7 +228,7 @@ void PIC_runIRQs(void) {
if (!irqs[i].masked && irqs[i].active) {
irqs[i].active=false;
PIC_IRQCheck&=~(1 << i);
Interrupt(irqs[i].vector);
CPU_HW_Interrupt(irqs[i].vector);
if (!pics[0].auto_eoi) {
PIC_IRQActive=i;
irqs[i].inservice=true;