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26 lines
645 B
26 lines
645 B
10 months ago
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2011-01-13 weety first version
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*/
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#ifndef __ASM_ARCH_IO_H
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#define __ASM_ARCH_IO_H
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#define IO_SPACE_LIMIT 0xFFFFFFFF
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#define readb(a) (*(volatile unsigned char *)(a))
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#define readw(a) (*(volatile unsigned short *)(a))
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#define readl(a) (*(volatile unsigned int *)(a))
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#define writeb(v,a) (*(volatile unsigned char *)(a) = (v))
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#define writew(v,a) (*(volatile unsigned short *)(a) = (v))
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#define writel(v,a) (*(volatile unsigned int *)(a) = (v))
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#endif
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