CPI

 

Opcode

Operand

Description

CPI

8-bit data

Compare immediate with accumulator

 

 

—  The 8-bit data is compared with the contents of accumulator.

 

—  The values being compared remain unchanged.

—  The result of the comparison is shown by setting the flags of the PSW as follows:


 


—  if (A) < data: carry flag is set

—  if (A) = data: zero flag is set

—  if (A) > data: carry and zero flags are reset

—  Example: CPI 89H

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