SAB80C517-M16 SIEMENS [Siemens Semiconductor Group], SAB80C517-M16 Datasheet - Page 210

• Manufacturer Part Number: SAB80C517-M16
• Description: 8-Bit CMOS Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

JNZ
Function:
Description:
Example:
Operation:
Encoding:
Bytes:
Cycles:
Semiconductor Group
rel
Jump if accumulator is not zero
If any bit of the accumulator is a one, branch to the indicated address; otherwise
proceed with the next instruction. The branch destination is computed by adding the
signed relative-displacement in the second instruction byte to the PC, after
incrementing the PC twice. The accumulator is not modified. No flags are affected.
The accumulator originally holds 00 H . The instruction sequence
JNZ
INC
JNZ
will set the accumulator to 01 H and continue at label LABEL2.
JNZ
(PC)
if (A)
then (PC)
2
2
0 1 1 1
0
(PC) + 2
LABEL1
A
LABEL2
0 0 0 0
(PC) + rel.
211
rel. address
Instruction Set