42 lines
2.2 KiB
ArmAsm
42 lines
2.2 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 sw=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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.text.startup
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/ Seventeen byte decompressor.
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/
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/ @param di points to output buffer
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/ @param si points to uint8_t {len₁,byte₁}, ..., {0,0}
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/ @mode long,legacy,real
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rldecode:
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.leafprologue
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.profilable
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xor %ecx,%ecx
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0: lodsb
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xchg %al,%cl
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lodsb
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jrcxz 2f
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1: stosb
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.loop 1b
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jmp 0b
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2: .leafepilogue
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.endfn rldecode,globl
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.source __FILE__
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