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47 lines
2.4 KiB
47 lines
2.4 KiB
/*-*- 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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