1 files changed, 37 insertions, 0 deletions
diff --git a/setjmp.S b/setjmp.S
new file mode 100644
index 0000000..7b42dc7
--- /dev/null
+++ b/setjmp.S
@@ -0,0 +1,37 @@
+.globl setjmp
+setjmp:
+	movl 4(%esp), %eax
+	
+	movl %ebx, 0(%eax)
+	movl %ecx, 4(%eax)
+	movl %edx, 8(%eax)
+	movl %esi, 12(%eax)
+	movl %edi, 16(%eax)
+	movl %esp, 20(%eax)
+	movl %ebp, 24(%eax)
+	pushl 0(%esp)	/* %eip */
+	popl 28(%eax)
+	
+	movl $0, %eax	/* return value */
+	ret
+
+.globl longjmp
+longjmp:
+	movl 4(%esp), %eax
+	
+	movl 0(%eax), %ebx
+	movl 4(%eax), %ecx
+	movl 8(%eax), %edx
+	movl 12(%eax), %esi
+	movl 16(%eax), %edi
+	movl 20(%eax), %esp
+	movl 24(%eax), %ebp
+
+	addl $4, %esp	/* pop %eip into thin air */
+	pushl 28(%eax)	/* push new %eip */
+	
+	movl $1, %eax	/* return value (appears to come from setjmp!) */
+	ret
+
+
+