diff --git a/src/kernel/trap.c b/src/kernel/trap.c index 0952313..0705141 100644 --- a/src/kernel/trap.c +++ b/src/kernel/trap.c @@ -10,10 +10,17 @@ void handle_trap() { unsigned long cause; __asm__ volatile("csrr %0, mcause" : "=r"(cause)); - if (cause == 3) { // 3 is the code for 'breakpoint' (ebreak) - kprint("Reason: ebreak (Breakpoint)\n"); - } else { - kprint("Reason: Other Exception\n"); + switch(cause) { + case 0: kprint("Reason: Instruction Address Misaligned\n"); break; + case 1: kprint("Reason: Instruction Access Fault\n"); break; + case 2: kprint("Reason: Illegal Instruction\n"); break; + case 3: kprint("Reason: Breakpoint (ebreak)\n"); break; + case 4: kprint("Reason: Load Address Misaligned\n"); break; + case 5: kprint("Reason: Load Access Fault\n"); break; + case 6: kprint("Reason: Store/AMO Address Misaligned\n"); break; + case 7: kprint("Reason: Store/AMO Access Fault\n"); break; + default: + kprintf("Reason: Unknown Exception Code %d\n", cause); } poweroff();