/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│ │vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│ ╞══════════════════════════════════════════════════════════════════════════════╡ │ Copyright 2020 Justine Alexandra Roberts Tunney │ │ │ │ This program is free software; you can redistribute it and/or modify │ │ it under the terms of the GNU General Public License as published by │ │ the Free Software Foundation; version 2 of the License. │ │ │ │ This program is distributed in the hope that it will be useful, but │ │ WITHOUT ANY WARRANTY; without even the implied warranty of │ │ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │ │ General Public License for more details. │ │ │ │ You should have received a copy of the GNU General Public License │ │ along with this program; if not, write to the Free Software │ │ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │ │ 02110-1301 USA │ ╚─────────────────────────────────────────────────────────────────────────────*/ #include "libc/macros.h" .text.windows / Epilogues for calling functions w/ Microsoft x64 convention. / / @param %rax is address of windows x64 function to call / @param %rsi is ignored / @param %rdx,%rcx,%r8,%r9,stack are params (unlimited) / @param %xmm0,%xmm1,%xmm2 are double params (limited to 3) / @return is in %rax, %xmm0, or %st / @note GCC 4.8+ and Clang can avoid this indirection / @note thunk that jumps here must setup frame / @note this is so much faster than nt2sysv() __sysv2nt14: pushq 72(%rbp) pushq 64(%rbp) __sysv2nt12: pushq 56(%rbp) pushq 48(%rbp) __sysv2nt10: pushq 40(%rbp) pushq 32(%rbp) __sysv2nt8: pushq 24(%rbp) pushq 16(%rbp) __sysv2nt6: push %r9 push %r8 __sysv2nt: mov %rdx,%r8 mov %rcx,%r9 mov %rdi,%rcx mov %rsi,%rdx sub $32,%rsp call *%rax leave ret .endfn __sysv2nt,globl,hidden .endfn __sysv2nt6,globl,hidden .endfn __sysv2nt8,globl,hidden .endfn __sysv2nt10,globl,hidden .endfn __sysv2nt12,globl,hidden .endfn __sysv2nt14,globl,hidden .source __FILE__