21 lines
346 B
C
21 lines
346 B
C
#include "io.h"
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void outb(uint16_t port, uint8_t val)
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{
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asm volatile("outb %0, %1" : : "a"(val), "Nd"(port));
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}
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uint8_t inb(uint16_t port)
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{
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uint8_t ret;
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asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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void wait(void)
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{
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asm volatile("jmp 1f\n\t"
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"1:jmp 2f\n\t"
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"2:");
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}
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