107 lines
1.9 KiB
ArmAsm
107 lines
1.9 KiB
ArmAsm
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; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
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; Contributed by Red Hat.
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;
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; This file 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 the
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; Free Software Foundation; either version 3, or (at your option) any
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; later version.
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;
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; This file 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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; Under Section 7 of GPL version 3, you are granted additional
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; permissions described in the GCC Runtime Library Exception, version
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; 3.1, as published by the Free Software Foundation.
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;
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; You should have received a copy of the GNU General Public License and
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; a copy of the GCC Runtime Library Exception along with this program;
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; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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; <http://www.gnu.org/licenses/>.
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.text
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.macro _srai n
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.global __mspabi_srai_\n
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__mspabi_srai_\n:
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RRA.W R12
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.endm
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/* Logical Right Shift - R12 -> R12 */
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_srai 15
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_srai 14
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_srai 13
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_srai 12
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_srai 11
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_srai 10
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_srai 9
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_srai 8
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_srai 7
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_srai 6
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_srai 5
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_srai 4
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_srai 3
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_srai 2
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_srai 1
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#ifdef __MSP430X_LARGE__
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RETA
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#else
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RET
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#endif
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1: ADD.W #-1,R13
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RRA.W R12,R12
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.global __mspabi_srai
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__mspabi_srai:
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CMP #0,R13
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JNZ 1b
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#ifdef __MSP430X_LARGE__
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RETA
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#else
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RET
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#endif
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/* Logical Right Shift - R12:R13 -> R12:R13 */
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.macro _sral n
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.global __mspabi_sral_\n
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__mspabi_sral_\n:
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RRA.W R13
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RRC.W R12
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.endm
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_sral 15
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_sral 14
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_sral 13
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_sral 12
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_sral 11
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_sral 10
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_sral 9
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_sral 8
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_sral 7
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_sral 6
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_sral 5
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_sral 4
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_sral 3
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_sral 2
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_sral 1
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#ifdef __MSP430X_LARGE__
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RETA
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#else
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RET
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#endif
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1: ADD.W #-1,R14
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RRA.W R13
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RRC.W R12
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.global __mspabi_sral
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__mspabi_sral:
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CMP #0,R14
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JNZ 1b
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#ifdef __MSP430X_LARGE__
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RETA
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#else
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RET
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#endif
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