diff options
Diffstat (limited to 'src/thread/mips/syscall_cp.s')
| -rw-r--r-- | src/thread/mips/syscall_cp.s | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/thread/mips/syscall_cp.s b/src/thread/mips/syscall_cp.s new file mode 100644 index 0000000..d284626 --- /dev/null +++ b/src/thread/mips/syscall_cp.s @@ -0,0 +1,53 @@ +.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 +.hidden __cancel +.global __syscall_cp_asm +.hidden __syscall_cp_asm +.type __syscall_cp_asm,@function +__syscall_cp_asm: + subu $sp, $sp, 32 +__cp_begin: + lw $4, 0($4) + bne $4, $0, __cp_cancel + move $2, $5 + move $4, $6 + move $5, $7 + lw $6, 48($sp) + lw $7, 52($sp) + lw $8, 56($sp) + lw $9, 60($sp) + lw $10,64($sp) + sw $8, 16($sp) + sw $9, 20($sp) + sw $10,24($sp) + sw $2, 28($sp) + lw $2, 28($sp) + syscall +__cp_end: + beq $7, $0, 1f + addu $sp, $sp, 32 + subu $2, $0, $2 +1: jr $ra + nop + +__cp_cancel: + move $2, $ra + bal 1f + addu $sp, $sp, 32 + .gpword . + .gpword __cancel +1: lw $3, ($ra) + subu $3, $ra, $3 + lw $25, 4($ra) + addu $25, $25, $3 + jr $25 + move $ra, $2 |