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-rw-r--r--src/internal/mips/syscall.s22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/internal/mips/syscall.s b/src/internal/mips/syscall.s
new file mode 100644
index 00000000..01a5917b
--- /dev/null
+++ b/src/internal/mips/syscall.s
@@ -0,0 +1,22 @@
+.set noreorder
+
+.global __syscall
+.type __syscall,@function
+__syscall:
+ move $10, $4
+ move $4, $5
+ move $5, $6
+ move $6, $7
+ lw $7, 16($sp)
+ lw $8, 20($sp)
+ lw $9, 24($sp)
+ subu $sp, $sp, 32
+ sw $8, 16($sp)
+ sw $9, 20($sp)
+ move $2, $10
+ syscall
+ beq $7, $0, 1f
+ addu $sp, $sp, 32
+ subu $2, $0, $2
+1: jr $ra
+ nop