mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
e64f71f812
It is more conventional to use compiler to pre-process and assemble the `.S` file rather than forcing Makefile to use `.s`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
39 lines
675 B
ArmAsm
39 lines
675 B
ArmAsm
##
|
|
## This file is part of the "Coroutine" project and released under the MIT License.
|
|
##
|
|
## Created by Samuel Williams on 3/11/2018.
|
|
## Copyright, 2018, by Samuel Williams. All rights reserved.
|
|
##
|
|
|
|
.text
|
|
|
|
.globl coroutine_transfer
|
|
coroutine_transfer:
|
|
|
|
# For older linkers
|
|
.globl _coroutine_transfer
|
|
_coroutine_transfer:
|
|
|
|
# Save caller registers
|
|
pushl %ebp
|
|
pushl %ebx
|
|
pushl %edi
|
|
pushl %esi
|
|
|
|
# Save caller stack pointer
|
|
movl %esp, (%ecx)
|
|
|
|
# Restore callee stack pointer
|
|
movl (%edx), %esp
|
|
|
|
# Restore callee stack
|
|
popl %esi
|
|
popl %edi
|
|
popl %ebx
|
|
popl %ebp
|
|
|
|
# Save the first argument as the return value
|
|
movl %ecx, %eax
|
|
|
|
# Jump to the address on the stack
|
|
ret
|