Instruction Set of Intel 8085 microprocessor                                                                                                 Print this page
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J condition addr (Conditional jump)

If ( C C C ) then

If the specified condition is true, control is transferred to the instruction whose address is specified in byte 3 and byte 2 of the current instruction, otherwise control continuous sequentially.

Example:
1 1 0 0 1 0 1 1, this op-code indicates JZ, ie. Jump on zero. It will check the zero flag bit, and if the Z flag is 1, control will jump to specified address.
In hex, this op-code is
Therefore, , for this instruction,
It will check the Z flag, if Z flag is set to 1, then program counter will be loaded with , otherwise control continues sequentially.

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