42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2023 Ekaitz Zarraga <ekaitz@elenq.tech>
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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<stdint.h>
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#include<stdio.h>
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int
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main ()
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{
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uint32_t r = 0xFFFFFFFF;
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r = r <<30 >>30; // higher 30 bits are cleared because they leave
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// the register to the left
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if (r != 3)
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return 1;
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uint16_t s = 0xFFFF;
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s = s <<14 >>14; // s<<14 is promoted to int, the higher bits are
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// not cleared, because there's space in the
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// register
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if (s != 0xFFFF)
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return 2;
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return 0;
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}
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