2020-06-16 13:38:43 +00:00
|
|
|
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
2020-06-15 14:18:57 +00:00
|
|
|
│vi: set et ft=asm ts=8 sw=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/nexgen32e/x86feature.h"
|
|
|
|
|
#include "libc/macros.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
|
