From 495dffba430a530649c89fb220492ad42ee803bc Mon Sep 17 00:00:00 2001
From: samuel <samuel@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 20 Nov 2018 10:18:16 +0000
Subject: GAS style assembly for win64 (mingw).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65876 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 coroutine/amd64/Context.s |  5 ++-
 coroutine/win64/Context.s | 77 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+), 3 deletions(-)
 create mode 100644 coroutine/win64/Context.s

(limited to 'coroutine')

diff --git a/coroutine/amd64/Context.s b/coroutine/amd64/Context.s
index 0c4296035e..641bd016ab 100644
--- a/coroutine/amd64/Context.s
+++ b/coroutine/amd64/Context.s
@@ -7,13 +7,12 @@
 
 .text
 
-.globl coroutine_transfer
-coroutine_transfer:
-
 # For older linkers
 .globl _coroutine_transfer
 _coroutine_transfer:
 
+.globl coroutine_transfer
+coroutine_transfer:
 	# Save caller state
 	pushq %rbp
 	pushq %rbx
diff --git a/coroutine/win64/Context.s b/coroutine/win64/Context.s
new file mode 100644
index 0000000000..04d97d1aaf
--- /dev/null
+++ b/coroutine/win64/Context.s
@@ -0,0 +1,77 @@
+##
+##  This file is part of the "Coroutine" project and released under the MIT License.
+##
+##  Created by Samuel Williams on 4/11/2018.
+##  Copyright, 2018, by Samuel Williams. All rights reserved.
+##
+
+.text
+
+.globl coroutine_transfer
+coroutine_transfer:
+	# Save the thread information block:
+	pushq %gs:8
+	pushq %gs:16
+
+	# Save caller registers:
+	pushq %rbp
+	pushq %rbx
+	pushq %rdi
+	pushq %rsi
+	pushq %r12
+	pushq %r13
+	pushq %r14
+	pushq %r15
+
+	movaps -24(%rsp), %xmm6
+	movaps -40(%rsp), %xmm7
+	movaps -56(%rsp), %xmm8
+	movaps -72(%rsp), %xmm9
+	movaps -88(%rsp), %xmm10
+	movaps -104(%rsp), %xmm11
+	movaps -120(%rsp), %xmm12
+	movaps -136(%rsp), %xmm13
+	movaps -152(%rsp), %xmm14
+	movaps -168(%rsp), %xmm15
+
+	# Save caller stack pointer:
+	mov %rsp, (%rcx)
+
+	# Restore callee stack pointer:
+	mov (%rdx), %rsp
+
+	movaps %xmm15, -168(%rsp)
+	movaps %xmm14, -152(%rsp)
+	movaps %xmm13, -136(%rsp)
+	movaps %xmm12, -120(%rsp)
+	movaps %xmm11, -104(%rsp)
+	movaps %xmm10, -88(%rsp)
+	movaps %xmm9, -72(%rsp)
+	movaps %xmm8, -56(%rsp)
+	movaps %xmm7, -40(%rsp)
+	movaps %xmm6, -24(%rsp)
+
+	# Restore callee stack:
+	popq %r15
+	popq %r14
+	popq %r13
+	popq %r12
+	popq %rsi
+	popq %rdi
+	popq %rbx
+	popq %rbp
+
+	# Restore the thread information block:
+	popq %gs:16
+	popq %gs:8
+
+	# Put the first argument into the return value:
+	mov %rcx, %rax
+
+	# We pop the return address and jump to it:
+	ret
+
+.globl coroutine_trampoline
+coroutine_trampoline:
+	# Do not remove this. This forces 16-byte alignment when entering the coroutine.
+	ret
-- 
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