PIC_MASTER_ISR
#define PIC_MASTER_POLL PIC_MASTER_ISR
#define PIC_MASTER_OCW3 PIC_MASTER_ISR
outb(0x0B, PIC_MASTER_ISR); /* ISR register */
if(~inb(PIC_MASTER_ISR) & 0x80)
outb(0x0B, PIC_MASTER_ISR); /* ISR register */
if (~inb(PIC_MASTER_ISR) & 0x80)
#define PIC_MASTER_POLL PIC_MASTER_ISR
#define PIC_MASTER_OCW3 PIC_MASTER_ISR