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An eight bit microprocessor made by Intel in 1976.

3 votes
Accepted

IO mapped IO design problem

You are asking about the high 3 address lines, which are the 3 input bits to the 3 to 8 line decoder. All 8 possible combinations of A5-A7 (same as A13-A15 in this case) cause one of the 8 outputs to …
Olin Lathrop's user avatar
1 vote

what does byte 2 and byte 3 mean?

You apparently have 2-byte and 3-byte instructions. The first byte is apparently the opcode in these cases. The SBI instruction only has a single byte of data beyond the opcode, so the data byte is …
Olin Lathrop's user avatar
0 votes

Why the time of execution is never shown in any Instruction Cycle?

Probably such timing is not shown because it is irrelevant to using the processor. All you need to know is that the result of one instruction is available as input to the next, except when it is stat …
Olin Lathrop's user avatar