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Tagged with instruction-set zuse
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Why does the Z22 have a read-only shadow of the return address location?
For some context to this question see Raffzahn's excellent question and answer How were Zuse Z22 Instructions Encoded?.
The Z22 treats the first few locations of its address space in a particular way:...
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How were Zuse Z22 Instructions Encoded?
The title says it all:
How to En-/Decode Z22/Z23 Instructions?
(History and Linkage:
The question was raised by Wilson in a comment on my answer to his question "Why are PDP-7-style microprogrammed ...
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What is the instruction set of the Z4?
I am able to find a few instructions, such as:
Fin (presumably "Fine", as in the end of a musical score, ends a program),
Fin', (a conditional Fin),
St (possibly "Start" -- the need for this is ...