| /kernel/trunk/arch/mips32/src/start.S |
|---|
| 251,10 → 251,15 |
| sw $t2,SS_STATUS($sp) |
| mtc0 $t0, $status |
| li $t4, 2 # SYS_INT_CONTROL |
| beq $t4, $v0, sysc_int_control |
| nop |
| # CALL Syscall handler |
| jal syscall_handler |
| sw $v0, SS_ARG4($sp) # save v0 - arg4 to stack |
| sysc_exit: |
| # restore status |
| mfc0 $t0, $status |
| lw $t1,SS_STATUS($sp) |
| 275,6 → 280,13 |
| eret |
| sysc_int_control: |
| jal ddi_int_control |
| addi $a1, $sp, SS_STATUS |
| j sysc_exit |
| nop |
| tlb_refill_handler: |
| KERNEL_STACK_TO_K0 |
| sub $k0, REGISTER_SPACE |