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Show the actual rip value in the monitor when an exception occurs

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Ry 2023-01-22 16:32:05 -08:00
parent 8fb3e8a982
commit 1899ed0f67
1 changed files with 21 additions and 3 deletions
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24
exception.asm
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@ -3,23 +3,41 @@
; called if a divide by zero occurs ; called if a divide by zero occurs
; does not return, calls panic ; does not return, calls panic
system_div_zero_handler: system_div_zero_handler:
push r0
mov r0, system_div_zero_str mov r0, system_div_zero_str
jmp panic call debug_print
call print_string_to_monitor
pop r0
jmp system_breakpoint_handler
system_div_zero_str: data.str "Divide by zero" data.8 10 data.8 0 system_div_zero_str: data.str "Divide by zero" data.8 10 data.8 0
; called if an invalid opcode is executed ; called if an invalid opcode is executed
; does not return, calls panic ; does not return, calls panic
system_invalid_op_handler: system_invalid_op_handler:
push r0
mov r0, system_invalid_op_str mov r0, system_invalid_op_str
jmp panic call debug_print
call print_string_to_monitor
pop r0
jmp system_breakpoint_handler
system_invalid_op_str: data.str "Invalid opcode" data.8 10 data.8 0 system_invalid_op_str: data.str "Invalid opcode" data.8 10 data.8 0
; called if a page fault occurs ; called if a page fault occurs
; does not return, calls panic ; does not return, calls panic
system_page_fault_handler: system_page_fault_handler:
push r0
mov r0, system_page_fault_str mov r0, system_page_fault_str
call debug_print
call print_string_to_monitor
pop r0
pop r1 pop r1
jmp panic jmp system_breakpoint_handler
system_page_fault_str: data.str "Page fault at virtual address r1" data.8 10 data.8 0 system_page_fault_str: data.str "Page fault at virtual address r1" data.8 10 data.8 0
; called upon execution of a `brk` instruction ; called upon execution of a `brk` instruction