From 6b765c480f8c810fc495a32baa696bbeb75adc09 Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Sun, 16 Jul 2006 15:40:51 +0000
Subject: rename swtch.S to setjmp.S

---
 setjmp.S | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 setjmp.S

(limited to 'setjmp.S')

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
+
+
+	
-- 
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