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37 lines
784 B
C
37 lines
784 B
C
#ifndef IO_H
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#define IO_H
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#include <stdint.h>
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static inline void outb(uint16_t port, uint8_t val) {
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__asm__("outb %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint8_t inb(uint16_t port) {
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uint8_t ret;
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__asm__("inb %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outw(uint16_t port, uint16_t val) {
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__asm__("outw %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint16_t inw(uint16_t port) {
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uint16_t ret;
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__asm__("inw %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outl(uint16_t port, uint32_t val) {
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__asm__("outl %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint32_t inl(uint16_t port) {
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uint32_t ret;
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__asm__("inl %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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#endif
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