5d139a1519
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@41 315a16e6-25f9-4109-90ae-ca3045a26c18
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of MetalSVM.
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*/
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#ifndef __ARCH_IO_H__
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#define __ARCH_IO_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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inline static unsigned char inportb(unsigned short _port) {
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unsigned char rv;
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asm volatile("inb %1, %0":"=a"(rv):"dN"(_port));
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return rv;
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}
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inline static unsigned short inportw(unsigned short _port) {
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unsigned short rv;
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asm volatile("inw %1, %0":"=a"(rv):"dN"(_port));
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return rv;
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}
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inline static unsigned int inportl(unsigned short _port) {
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unsigned int rv;
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asm volatile("inl %1, %0":"=a"(rv):"dN"(_port));
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return rv;
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}
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inline static void outportb(unsigned short _port, unsigned char _data) {
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asm volatile("outb %1, %0"::"dN"(_port), "a"(_data));
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}
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inline static void outportw(unsigned short _port, unsigned short _data) {
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asm volatile("outw %1, %0"::"dN"(_port), "a"(_data));
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}
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inline static void outportl(unsigned short _port, unsigned int _data)
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{
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asm volatile("outl %1, %0"::"dN"(_port), "a"(_data));
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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