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79 lines
1.5 KiB
NASM
79 lines
1.5 KiB
NASM
;;
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;; This file is part of the "Coroutine" project and released under the MIT License.
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;;
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;; Created by Samuel Williams on 10/5/2018.
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;; Copyright, 2018, by Samuel Williams.
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;;
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.code
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coroutine_transfer proc
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; Save the thread information block:
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push qword ptr gs:[8]
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push qword ptr gs:[16]
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; Save caller registers:
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push rbp
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push rbx
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push rdi
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push rsi
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push r12
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push r13
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push r14
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push r15
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movaps [rsp - 24], xmm6
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movaps [rsp - 40], xmm7
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movaps [rsp - 56], xmm8
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movaps [rsp - 72], xmm9
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movaps [rsp - 88], xmm10
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movaps [rsp - 104], xmm11
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movaps [rsp - 120], xmm12
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movaps [rsp - 136], xmm13
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movaps [rsp - 152], xmm14
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movaps [rsp - 168], xmm15
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; Save caller stack pointer:
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mov [rcx], rsp
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; Restore callee stack pointer:
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mov rsp, [rdx]
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movaps xmm15, [rsp - 168]
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movaps xmm14, [rsp - 152]
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movaps xmm13, [rsp - 136]
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movaps xmm12, [rsp - 120]
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movaps xmm11, [rsp - 104]
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movaps xmm10, [rsp - 88]
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movaps xmm9, [rsp - 72]
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movaps xmm8, [rsp - 56]
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movaps xmm7, [rsp - 40]
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movaps xmm6, [rsp - 24]
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; Restore callee stack:
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pop r15
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pop r14
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pop r13
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pop r12
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pop rsi
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pop rdi
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pop rbx
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pop rbp
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; Restore the thread information block:
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pop qword ptr gs:[16]
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pop qword ptr gs:[8]
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; Put the first argument into the return value:
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mov rax, rcx
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; We pop the return address and jump to it:
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ret
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coroutine_transfer endp
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coroutine_trampoline proc
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; Do not remove this. This forces 16-byte alignment when entering the coroutine.
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ret
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coroutine_trampoline endp
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end
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