Fujitsu F2MC-8FX Manual Do Utilizador

CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS

6.13 BNZ (Branch relative if Z = 0)/BNE (Branch if Not Equal)

Execute the next instruction if the Z-flag is 1 and the branch if it is 0. Branch address
corresponds to the value of addition between the PC value (word value) of the next
instruction and the value with rel code-extended (word value).

■

BNZ (Branch relative if Z = 0)/BNE (Branch if Not Equal)

Operation

(Z) = 1: (PC)

← (PC) + 2 (Word addition)

(Z) = 0: (PC)

← (PC) + 2 + rel (Word addition)

Assembler format

BNZ rel/BNE rel

Condition code (CCR)

+: Changed by executing instruction

-: Not changed

N: Not changed

Z: Not changed

V: Not changed

C: Not changed

Number of execution cycles: 4 (at divergence)/ 2 (at non-divergence)

Byte count: 2

OP code: FC