45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
#include "common.h"
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#include "isr.h"
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#include "screen.h"
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IsrFunction gInterruptHandlers[256];
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extern uint32 gSystemTickCount;
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void registerInterruptHandler(uint8 n, IsrFunction handler) {
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gInterruptHandlers[n] = handler;
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}
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void handleISR(Registers regs) {
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//printkf("handleISR interrupt no:%d\n", regs.int_no);
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uint8 int_no = regs.interruptNumber & 0xFF;
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if (gInterruptHandlers[int_no] != 0) {
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IsrFunction handler = gInterruptHandlers[int_no];
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handler(®s);
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}
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else {
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printkf("unhandled interrupt: %d\n", int_no);
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printkf("Tick: %d\n", gSystemTickCount);
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PANIC("unhandled interrupt");
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}
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}
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void handleIRQ(Registers regs) {
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// end of interrupt message
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if (regs.interruptNumber >= 40) {
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//slave PIC
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outb(0xA0, 0x20);
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}
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outb(0x20, 0x20);
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//printkf("irq: %d\n", regs.int_no);
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if (gInterruptHandlers[regs.interruptNumber] != 0) {
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IsrFunction handler = gInterruptHandlers[regs.interruptNumber];
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handler(®s);
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}
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}
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