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7. Block Diagram and Register descriptions

A small block diagram showing the interconnection if the units in the CPU. The CPU incldes its own memory and memory control, and all input/output is intended to be via a host Z80 processor.

There are 9 general purpose 40-bit registers, register 0 is always zero, and the remaining 6 registers are for the stack pointer, program counter, loop counter, In and Out registers, and index register.