The following is an 8051 instruction: CJNE A, # 'Q' ,AHEAD a) what is the opcode for this instruction? b) how many bytes long is this instruction? c)

Emily-Jane Bray

Emily-Jane Bray

Answered question

2021-04-24

The following is an 8051 instruction: CJNE A, # Q ,AHEAD
a) what is the opcode for this instruction?
b) how many bytes long is this instruction?
c) explain the purpose of each byte of this instruction.
d) how many machine cycles are required to execute this instruction?
e) If an 8051 is operating from a 10 MHz crystal, how longdoes this instruction take to execute?

Answer & Explanation

lobeflepnoumni

lobeflepnoumni

Skilled2021-04-26Added 99 answers

a)OPCODE OxB4
b)no.ofbytes 3
c)the first byte contains the first operand
direct data specified
the second and third byte are relative address AHEAD

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?