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Offset     Read          Write          |     Offset     Read          Write

00     Control          Control          |     40     T0 count low     T0 latch low
04     Kbd receive     Kbd send     |     44     T0 count high     T0 latch high
08     -          -          |     48     -          T0 Go command
0C     -          -          |     4C     -          T0 Latch command
10     IRQ status A     -          |     50     T1 count low     T1 latch low
14     IRQ request A     IRQ clear     |     54     T1 count high     T1 latch high
18     IRQ mask A     IRQ mask A     |     58     -          T1 Go command
1C     -          -          |     5C     -          T1 Latch command
20     IRQ status B     -          |     60     T2 count low     T2 latch low
24     IRQ request B     -          |     64     T2 count high     T2 latch high
28     IRQ mask B     IRQ mask B     |     68     -          T2 Go command
2C     -          -          |     6C     -          T2 Latch command
30     FIQ status     -          |     70     T3 count low     T3 latch low
34     FIQ request     -          |     74     T3 count high     T3 latch high
38     FIQ mask     FIQ mask     |     78     -          T3 Go command
3C     -          -          |     7C     -          T3 Latch command

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