pic.h

#ifndef BARESNAKE_PIC_H
#define BARESNAKE_PIC_H

#define MASTER_COMMAND 0x20
#define MASTER_DATA 0x21
#define SLAVE_COMMAND 0xA0
#define SLAVE_DATA 0xA1

#define PIC_RESET 0x20

#define ICW1_ICW4 0x01       /* ICW4 (not) needed */
#define ICW1_SINGLE 0x02     /* Single (cascade) mode */
#define ICW1_INTERVAL4 0x04  /* Call address interval 4 (8) */
#define ICW1_LEVEL 0x08      /* Level triggered (edge) mode */
#define ICW1_INIT 0x10       /* Initialization - required! */

#define ICW4_8086 0x01       /* 8086/88 (MCS-80/85) mode */
#define ICW4_AUTO 0x02       /* Auto (normal) EOI */
#define ICW4_BUF_SLAVE 0x08  /* Buffered mode/slave */
#define ICW4_BUF_MASTER 0x0C /* Buffered mode/master */
#define ICW4_SFNM 0x10       /* Special fully nested (not) */

void remap_pic();

#endif