cosmopolitan/libc/nexgen32e/kcrc32ctab.S

43 lines
2.4 KiB
ArmAsm

/*-*- 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"
/ Castagnoli CRC32 ISCSI Polynomial
/ x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1
/ 0b00011110110111000110111101000001
/ bitreverse32(0x1edc6f41)
#define ISCSI_POLYNOMIAL 0x82f63b78
.initbss 300,_init_kCrc32cTab
kCrc32cTab:
.rept 256
.long 0
.endr
.endobj kCrc32cTab,globl,hidden
.previous
.init.start 300,_init_kCrc32cTab
push %rsi
mov $ISCSI_POLYNOMIAL,%esi
call crc32init
pop %rsi
.init.end 300,_init_kCrc32cTab
.source __FILE__