48 lines
2.4 KiB
ArmAsm
48 lines
2.4 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/macros.h"
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/ Base 36 Decoder Table.
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/
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/ This supports uppercase and lowercase. For encoding, the string
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/ 0123456789abcdefghijklmnopqrstuvwxyz can be used, which linkers
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/ are able to deduplicate.
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.initbss 300,_init_kBase36
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kBase36:.zero 256
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.endobj kBase36,globl,hidden
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.previous
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.init.start 300,_init_kBase36
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add $'0,%rdi
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xor %eax,%eax
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pushpop 10,%rcx
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0: inc %eax
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stosb
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.loop 0b
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add $'A-1-'9,%rdi
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pushpop 'Z+1-'A,%rcx
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0: inc %eax
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mov %al,0x20(%rdi)
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stosb
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.loop 0b
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add $255-'Z,%rdi
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.init.end 300,_init_kBase36
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.source __FILE__
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