2018-11-20 10:13:59 +00:00
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##
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2018-11-20 10:16:29 +00:00
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## This file is part of the "Coroutine" project and released under the MIT License.
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2018-11-20 10:13:59 +00:00
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##
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## Created by Samuel Williams on 3/11/2018.
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## Copyright, 2018, by Samuel Williams. All rights reserved.
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##
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.text
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.globl coroutine_transfer
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coroutine_transfer:
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# For older linkers
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.globl _coroutine_transfer
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_coroutine_transfer:
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# Save caller registers
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pushl %ebp
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pushl %ebx
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pushl %edi
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pushl %esi
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# Save caller stack pointer
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movl %esp, (%ecx)
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# Restore callee stack pointer
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movl (%edx), %esp
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# Restore callee stack
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popl %esi
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popl %edi
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popl %ebx
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popl %ebp
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# Save the first argument as the return value
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movl %ecx, %eax
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# Jump to the address on the stack
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ret
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