| 65,6 → 65,7 |
|---|
| @prev mode was usermode \n\ |
| ldmfd r13!, {r0} \n\ |
| ldr r13, =supervisor_sp \n\ |
| ldr r13, [r13] \n\ |
| stmfd r13!, {lr} \n\ |
| stmfd r13!, {r0-r12} \n\ |
| stmfd r13!, {r13, lr}^ \n\ |
| 87,8 → 88,9 |
|---|
| mov r2, lr \n\ |
| stmfd r13!, {r4-r12} \n\ |
| mov r1, r13 \n\ |
| @following two lines are for debugging \n\ |
| mov sp, #0 \n\ |
| mov lr, #0 \n\ |
| mov sp, #0 \n\ |
| msr cpsr_c, r0 \n\ |
| \n\ |
| ldmfd r13!, {r4, r5, r6, r7} \n\ |
| 130,9 → 132,7 |
|---|
| msr cpsr_c, r0 \n\ |
| \n\ |
| @actual return \n\ |
| \n\ |
| ldmfd r13, {r0-r12, pc}^ \n\ |
| 4:" |
| 4: ldmfd r13, {r0-r12, pc}^" |
| ); |
| } |
| |
| 246,6 → 246,9 |
|---|
| */ |
| static void swi_exception(int exc_no, istate_t* istate) |
| { |
| dprintf("SYSCALL: r0-r4: %x, %x, %x, %x, %x; pc: %x", istate->r0, |
| istate->r1, istate->r2, istate->r3, istate->r4, istate->pc); |
| |
| istate->r0 = syscall_handler( |
| istate->r0, |
| istate->r1, |