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Instruction Set
3-51
RISC 16−Bit CPU
JNE Jump if not equal
JNZ Jump if not zero
Syntax JNE label
JNZ label
Operation If Z = 0: PC + 2 × offset −> PC
If Z = 1: execute following instruction
Description The status register zero bit (Z) is tested. If it is reset, the 10-bit signed offset
contained in the instruction LSBs is added to the program counter. If Z is set,
the next instruction following the jump is executed.
Status Bits Status bits are not affected.
Example Jump to address TONI if R7 and R8 have different contents.
CMP R7,R8 ; COMPARE R7 WITH R8
JNE TONI ; if different: jump
...... ; if equal, continue