47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright (c) 2008 Carsten Schlote <c.schlote@konzeptpark.de>
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* See file CREDITS for list of people who contributed to this project.
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*
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* This file is part of U-Boot V2.
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*
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* U-Boot V2 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, either version 3 of the License, or
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* (at your option) any later version.
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*
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* U-Boot V2 is distributed in the hope that it will be useful,
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* but 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 U-Boot V2. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file
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* General processor specific definitions
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*/
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#ifndef __ASM_M68K_PROCESSOR_H
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#define __ASM_M68K_PROCESSOR_H
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/*
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* Default implementation of macro that returns current
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* instruction pointer ("program counter").
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*/
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#define current_text_addr() ({ __label__ _l; _l: &&_l;})
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static inline unsigned long rdusp(void)
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{
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unsigned long usp;
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__asm__ __volatile__("movel %/usp,%0" : "=a" (usp));
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return usp;
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}
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static inline void wrusp(unsigned long usp)
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{
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__asm__ __volatile__("movel %0,%/usp" : : "a" (usp));
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}
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#endif /* __ASM_M68K_PROCESSOR_H */
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