src/include/asm.h


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#pragma once
#include <stdint.h>

// IO
static inline void outb(uint16_t port, uint8_t val) {
    asm volatile("outb %0, %1" : : "a"(val), "Nd"(port) : "memory");
}

static inline uint8_t inb(uint16_t port) {
    uint8_t ret;
    asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port) : "memory");
    return ret;
}

static inline void io_wait(void) { outb(0x80, 0); }