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ruby--ruby/coroutine/win64/Context.asm
samuel 3710dedc12 Tidy up comments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65850 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-20 10:16:29 +00:00

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650 B
NASM

;;
;; This file is part of the "Coroutine" project and released under the MIT License.
;;
;; Created by Samuel Williams on 10/5/2018.
;; Copyright, 2018, by Samuel Williams. All rights reserved.
;;
.code
coroutine_transfer proc
push rbp
push rbx
push rdi
push rsi
push r12
push r13
push r14
push r15
; Save caller stack pointer
mov [rcx], rsp
; Restore callee stack pointer
mov rsp, [rdx]
; Restore callee stack
pop r15
pop r14
pop r13
pop r12
pop rsi
pop rdi
pop rbx
pop rbp
; Put the first argument into the return value
mov rax, rcx
; We pop the return address and jump to it
ret
coroutine_transfer endp
end