Got IDT & ISRs working!

2025-03-21 14:09:15 +01:00
parent 05c8ee8f67
commit c3f8d7d8f2
9 changed files with 322 additions and 2 deletions
@@ -0,0 +1,26 @@
+#ifndef _ISR_H
+#define _ISR_H
+
+#include <kernel.h>
+
+// Interrupt frame (ie. what's on the stack on interrupt)
+struct isr_intFrame {
+	// Pushed by OS
+	uint32_t esp, ebx, ecx, edx, esi, edi, ebp;
+	uint32_t ds, es, fs, gs, eax;
+	uint32_t interrupt, error;
+
+	// Pushed by CPU
+	uint32_t eip, cs, eflags, user_esp, user_ss;
+};
+typedef void (*isr_handlerPtr)(struct isr_intFrame* iframe);
+
+int isr_init(void);
+void isr_registerIRQ(uint8_t i, isr_handlerPtr handler);
+int isr_handleInterrupt(struct isr_intFrame iframe);
+
+// Assembly definitions (isr.s)
+extern void* isr_redirectTable[48]; // ISR Table
+extern void isr128(); // int 0x80 - syscall
+
+#endif