2023-10-26 20:43:30 +00:00
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/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2019,2020 Danny Milosavljevic <dannym@scratchpost.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes 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
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* GNU 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mes/lib-mini.h"
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// *INDENT-OFF*
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#if !__TINYC__
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#define SYS_exit "93"
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void
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_exit (int code)
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{
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asm (
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2023-11-05 20:33:24 +00:00
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"mov x7, #"SYS_exit"\n\t"
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2023-10-26 20:43:30 +00:00
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"mov x0, %0\n\t"
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2023-11-05 20:33:24 +00:00
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"svc #0\n\t"
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2023-10-26 20:43:30 +00:00
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: // no outputs "=" (r)
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: "r" (code)
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: "x0", "x7"
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);
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// not reached
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_exit (0);
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}
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#else //__TINYC__
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#define SYS_exit 0x01
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void
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_exit (int code)
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{
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int c = SYS_exit;
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__asm__ (".int 0xe51b7004\n"); //ldr r7, [fp, #-4] ; "c"
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__asm__ (".int 0xe59b000c\n"); //ldr r0, [fp, #12] ; code
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__asm__ (".int 0xef000000\n"); //svc 0x00000000
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}
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#endif //__TINYC__
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