From 04e0a9bb81356b6713e634b4d950c524f0abf15c Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Thu, 13 Oct 2011 23:57:54 -0400
Subject: libthread: Lion context routines

---
 src/libthread/Darwin-x86_64-asm.s | 44 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 src/libthread/Darwin-x86_64-asm.s

(limited to 'src/libthread/Darwin-x86_64-asm.s')

diff --git a/src/libthread/Darwin-x86_64-asm.s b/src/libthread/Darwin-x86_64-asm.s
new file mode 100644
index 00000000..d50d3b6d
--- /dev/null
+++ b/src/libthread/Darwin-x86_64-asm.s
@@ -0,0 +1,44 @@
+.text
+.align 8
+
+.globl	_libthread_getmcontext
+_libthread_getmcontext:
+	movq	$1, 0*8(%rdi)  // rax
+	movq	%rbx, 1*8(%rdi)
+	movq	%rcx, 2*8(%rdi)
+	movq	%rdx, 3*8(%rdi)
+	movq	%rsi, 4*8(%rdi)
+	movq	%rdi, 5*8(%rdi)
+	movq	%rbp, 6*8(%rdi)
+	movq	%rsp, 7*8(%rdi)
+	movq	%r8, 8*8(%rdi)
+	movq	%r9, 9*8(%rdi)
+	movq	%r10, 10*8(%rdi)
+	movq	%r11, 11*8(%rdi)
+	movq	%r12, 12*8(%rdi)
+	movq	%r13, 13*8(%rdi)
+	movq	%r14, 14*8(%rdi)
+	movq	%r15, 15*8(%rdi)
+	movq	$0, %rax
+	ret
+
+.globl	_libthread_setmcontext
+_libthread_setmcontext:
+	movq	0*8(%rdi), %rax
+	movq	1*8(%rdi), %rbx
+	movq	2*8(%rdi), %rcx
+	movq	3*8(%rdi), %rdx
+	movq	4*8(%rdi), %rsi
+	// %rdi later
+	movq	6*8(%rdi), %rbp
+	movq	7*8(%rdi), %rsp
+	movq	8*8(%rdi), %r8
+	movq	9*8(%rdi), %r9
+	movq	10*8(%rdi), %r10
+	movq	11*8(%rdi), %r11
+	movq	12*8(%rdi), %r12
+	movq	13*8(%rdi), %r13
+	movq	14*8(%rdi), %r14
+	movq	15*8(%rdi), %r15
+	movq	5*8(%rdi), %rdi
+	ret
-- 
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