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Results tagged with instruction-set
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user 10260
For questions regarding the instruction sets of microprocessors.
11
votes
1
answer
436
views
What was the 6-bit length instruction(s) in the Intel iAPX 432?
The iAPX 432 was arguably the most complex processor architecture ever and a commercial failure for Intel. It was a stack machine with no visible general-purpose registers. It had hardware support fo …
- 16.6k
14
votes
2
answers
2k
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Origin of "arithmetic" and "logical" for signed and unsigned shifts
The assembly language for many processors use the phrase "arithmetic shift" to represent the bitwise shift of a signed value, and "logical shift" for an unsigned value. The two types of shift are the …
- 16.6k