diff options
Diffstat (limited to 'tests/lm32/crt.S')
| -rw-r--r-- | tests/lm32/crt.S | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/tests/lm32/crt.S b/tests/lm32/crt.S new file mode 100644 index 0000000000..5f9cfd95d3 --- /dev/null +++ b/tests/lm32/crt.S @@ -0,0 +1,84 @@ +.text +.global _start + +_start: +_reset_handler: + xor r0, r0, r0 + mvhi r1, hi(_start) + ori r1, r1, lo(_start) + wcsr eba, r1 + wcsr deba, r1 + bi _main + nop + nop + +_breakpoint_handler: + ori r25, r25, 1 + addi ra, ba, 4 + ret + nop + nop + nop + nop + nop + +_instruction_bus_error_handler: + ori r25, r25, 2 + addi ra, ea, 4 + ret + nop + nop + nop + nop + nop + +_watchpoint_handler: + ori r25, r25, 4 + addi ra, ba, 4 + ret + nop + nop + nop + nop + nop + +_data_bus_error_handler: + ori r25, r25, 8 + addi ra, ea, 4 + ret + nop + nop + nop + nop + nop + +_divide_by_zero_handler: + ori r25, r25, 16 + addi ra, ea, 4 + ret + nop + nop + nop + nop + nop + +_interrupt_handler: + ori r25, r25, 32 + addi ra, ea, 4 + ret + nop + nop + nop + nop + nop + +_system_call_handler: + ori r25, r25, 64 + addi ra, ea, 4 + ret + nop + nop + nop + nop + nop + |