mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-18 03:22:40 +00:00
e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
90 lines
3.3 KiB
PHP
90 lines
3.3 KiB
PHP
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
|
│ vi: set noet ft=asm ts=8 sw=8 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/macros.internal.h"
|
|
#include "libc/nexgen32e/x86feature.h"
|
|
|
|
// Broadcast byte literal to vector, e.g.
|
|
//
|
|
// # xmm0=0x12121212121212121212121212121212
|
|
// .bcblit $0x12,%al,%eax,%xmm0
|
|
//
|
|
// @param reg and regSI need to be the same register
|
|
.macro .bcblit lit:req reg:req regSI:req xmm:req
|
|
mov \lit,\reg
|
|
movd \regSI,\xmm
|
|
pbroadcastb \xmm
|
|
.endm
|
|
|
|
// Broadcast word literal to vector, e.g.
|
|
//
|
|
// # xmm0=0x01230123012301230123012301230123
|
|
// .bcwlit $0x123,%ax,%eax,%xmm0
|
|
//
|
|
// @param reg and regSI need to be the same register
|
|
.macro .bcwlit lit:req reg:req regSI:req xmm:req
|
|
mov \lit,\reg
|
|
movd \regSI,\xmm
|
|
pbroadcastw \xmm
|
|
.endm
|
|
|
|
// Broadcast int16 from register to vector.
|
|
.macro .bcwreg regSI:req xmm:req
|
|
movd \regSI,\xmm
|
|
pbroadcastw \xmm
|
|
.endm
|
|
|
|
// Sets all bytes in XMM register to first byte, e.g.
|
|
//
|
|
// mov $0x11,%eax
|
|
// movd %eax,%xmm0
|
|
// pbroadcastb %xmm0
|
|
//
|
|
// 11000000000000000000000000000000
|
|
// → 11111111111111111111111111111111
|
|
//
|
|
// @param xmm can be %xmm0,%xmm1,etc.
|
|
.macro pbroadcastb xmm:req
|
|
#if X86_NEED(AVX2)
|
|
vpbroadcastb \xmm,\xmm
|
|
#else
|
|
punpcklbw \xmm,\xmm
|
|
punpcklwd \xmm,\xmm
|
|
pshufd $0,\xmm,\xmm
|
|
#endif
|
|
.endm
|
|
|
|
// Sets all words in XMM register to first word, e.g.
|
|
//
|
|
// mov $0x1234,%eax
|
|
// movd %eax,%xmm0
|
|
// pbroadcastw %xmm0
|
|
//
|
|
// 12340000000000000000000000000000
|
|
// → 12341234123412341234123412341234
|
|
//
|
|
// @param xmm can be %xmm0,%xmm1,etc.
|
|
.macro pbroadcastw xmm:req
|
|
#if X86_NEED(AVX2)
|
|
vpbroadcastw \xmm,\xmm
|
|
#else
|
|
punpcklwd \xmm,\xmm
|
|
pshufd $0,\xmm,\xmm
|
|
#endif
|
|
.endm
|