Register 0 (FIFO)          
Register 1 (PHI status)    
Register 2 (IRQ conditions)
Register 3 (IRQ mask)      
Register 4 (Poll mask)     
Register 5 (Poll sense)    
Register 6 (PHI control)   
Register 7 (Bus address)   
Register 8 (DMA bank)      
Register 9 (DMA address)   
Register A (DMA byte count)
Register B (DMA status)    
Register C (Interrupt)     
Register D (Interrupt info)
Register E (Configuration) 
Register F (Service info)  


 10 .RUNNING THIS PROGRAM TESTS THE DISPLAY OF ALL GIC REGISTERS
 20 .
 30 .
 40 .
 50 .
 60 .
 70 .
 80 .
 90 .
100 DB AA,256
110 DB BB,256
120 LET CHANNEL:=11
130 LET DEVICE:=0
140 BSIO ZZ
    .
    WREG 0,!405E    .TALK 30
    WREG 0,!0020    .DATA BYTE
    WREG 0,!8030    .DATA BYTE | EOI
    WREG 0,!405F    .UNTALK
    WREG 0,!800F    .RECEIVE 15
    WREG 0,!C000    .RECEIVE
    WREG 0,!001F    .RECEIVE 31 | LF
    .
    RREG 0,X
    .
    WREG 1,!0000
    WREG 1,!FFFF
    RREG 1,X
    .
    WREG 2,!0000
    WREG 2,!FFFF
    RREG 2,X
    .
    WREG 3,!0000
    WREG 3,!FFFF
    RREG 3,X
    .
    WREG 4,!0000
    WREG 4,!FFFF
    RREG 4,X
    .
    WREG 5,!0000
    WREG 5,!FFFF
    RREG 5,X
    .
    WREG 6,!0000
    WREG 6,!FFFF
    RREG 6,X
    .
    WREG 7,!0000
    WREG 7,!FFFF
    RREG 7,X
    .
    WREG 8,!0000
    WREG 8,!FFFF
    RREG 8,X
    .
    WREG 9,!0000
    WREG 9,!FFFF
    RREG 9,X
    .
    WREG 10,!0000
    WREG 10,!FFFF
    RREG 10,X
    .
    WREG 11,!0000
    WREG 11,!FFFF
    RREG 11,X
    .
    WREG 12,!0000
    WREG 12,!FFFF       .SETS INTERRUPT DEVICE 7
    RREG 12,X
    WREG 12,!0007       .CLEARS INTERRUPT DEVICE 7
    .
    WREG 13,!0000
    WREG 13,!FFFF
    RREG 13,X
    .
    WREG 14,!0000
    WREG 14,!FFFF
    RREG 14,X
    .
    WREG 15,!0000
    WREG 15,!FFFF
    RREG 15,X
    .
    IN H
    RSIO ZZ
    END