diff options
Diffstat (limited to 'src/thread/mipsn32/syscall_cp.s')
| -rw-r--r-- | src/thread/mipsn32/syscall_cp.s | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/thread/mipsn32/syscall_cp.s b/src/thread/mipsn32/syscall_cp.s new file mode 100644 index 00000000..e85615bc --- /dev/null +++ b/src/thread/mipsn32/syscall_cp.s @@ -0,0 +1,51 @@ +.set noreorder +.global __cp_begin +.hidden __cp_begin +.type __cp_begin,@function +.global __cp_end +.hidden __cp_end +.type __cp_end,@function +.global __cp_cancel +.hidden __cp_cancel +.type __cp_cancel,@function +.global __cp_cancel_data +.hidden __cp_cancel_data +.type __cp_cancel_data,@function +.hidden __cancel +.global __syscall_cp_asm +.hidden __syscall_cp_asm +.type __syscall_cp_asm,@function +__syscall_cp_asm: +__cp_begin: + lw $4, 0($4) + bne $4, $0, __cp_cancel + move $2, $5 + move $4, $6 + move $5, $7 + move $6, $8 + move $7, $9 + move $8, $10 + move $9, $11 + lw $10, 0($sp) + syscall +__cp_end: + beq $7, $0, 1f + nop + subu $2, $0, $2 +1: jr $ra + nop + + # if cancellation flag is 1 then call __cancel +__cp_cancel: + move $2, $ra + bal 1f + nop +__cp_cancel_data: + .gpword __cp_cancel_data + .gpword __cancel +1: lw $3, 0($ra) + subu $3, $ra, $3 + lw $25, 4($ra) + addu $25, $25, $3 + jr $25 + move $ra, $2 |