master_outb
#define Q40_LED_ON() master_outb(1,LED_REG)
#define Q40_LED_OFF() master_outb(0,LED_REG)
master_outb(0, EXT_ENABLE_REG);
master_outb(0, KEY_IRQ_ENABLE_REG);
master_outb(0, KEY_IRQ_ENABLE_REG);
master_outb(-1, FRAME_CLEAR_REG);
master_outb( 1, FRAME_RATE_REG);
master_outb(-1, FRAME_CLEAR_REG);
master_outb(1, EXT_ENABLE_REG);
master_outb(0, EXT_ENABLE_REG);
master_outb(1, EXT_ENABLE_REG); /* ISA IRQ 5-15 */
master_outb(-1, KEYBOARD_UNLOCK_REG);
master_outb(0, KEY_IRQ_ENABLE_REG);
master_outb(-1, KEYBOARD_UNLOCK_REG);
master_outb(-1, KEYBOARD_UNLOCK_REG);
master_outb(1, KEY_IRQ_ENABLE_REG);
master_outb(3, DISPLAY_CONTROL_REG);
master_outb(0,SAMPLE_ENABLE_REG);
master_outb(0,SAMPLE_ENABLE_REG);
master_outb( 0,SAMPLE_ENABLE_REG);
master_outb( speed, SAMPLE_RATE_REG);
master_outb( 1,SAMPLE_CLEAR_REG);
master_outb( 1,SAMPLE_ENABLE_REG);
master_outb(1,SAMPLE_CLEAR_REG);
master_outb(1,SAMPLE_CLEAR_REG);
master_outb(0,SAMPLE_ENABLE_REG); /* better safe */
master_outb(0,SAMPLE_ENABLE_REG);
master_outb(1,SAMPLE_CLEAR_REG);