Untitled_Kernel/include/asm.h

/**
 * @file asm.h
 * @brief Assembly wrappers
 * @author Jake "lordtet" Holtham
 * @date 2025
 * Wrapper functions for using assembly files.
 */
#ifndef ASM_H
#define ASM_H
#include <stdint.h>

/**
 * @brief Wrapper for asm instruction `out` that feeds a byte. 
 * @param port I/O Address for the port to send to
 * @param data Data to send
 */
void outb(uint16_t port, uint8_t data);

/**
 * @brief Wrapper for asm instruction "in" that receives bytewise.
 * @param port I/O Address for the port to listen from
 * @return (uint8_t) The received byte.
 */
uint8_t inb(uint16_t port);

/**
 * @brief Refresh the CR3 register.
 * Moves CR3 into a scratch register and back into CR3. Usually used to nuke the TLB.
 */
void cr3_reload();

#endif