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P0: 8085 Basics

posted Mar 29, 2013, 5:08 AM by Neil Mathew   [ updated Mar 29, 2013, 5:08 AM by Neil Mathew ]

I think the first thing we learnt is to recognize how many bytes of memory each instruction takes.

For eg:  MOV A,B takes 1 byte (8 bits) of memory.

However, LDA 2000H takes 3 bytes since the complete string takes exactly one byte (represented by an opcode later) and each 8 bit operand takes one byte. So, LDA    20    00  =  3 bytes.


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InstructionSet.pdf
(150k)
Neil Mathew,
Mar 29, 2013, 6:16 AM
v.3
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MPRC8085Notes.pdf
(2270k)
Neil Mathew,
Mar 29, 2013, 6:17 AM
v.3
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