TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 145

• Manufacturer Part Number: TSC80251
• Manufacturer: TEMIC [TEMIC Semiconductors]

5.100
TSC80251
JZ rel
Function:
Jump if accumulator zero
Description:
If all bits of the accumulator are clear (zero), branch to the address specified; 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.
Example :
The accumulator contains 01h. After executing the instruction sequence:
the accumulator contains 00h and program execution continues at label LABEL2.
[Encoding]
FLAGS :
Hex Code in:
Binary Mode = [Encoding]
Source Mode = [Encoding]
0110
JZ
DEC A
JZ
CY
_
LABEL1
LABEL2
0000
AC
_
rel. addr
OV
_
Operation:
JZ
(PC)
IF [(A) = 0]
THEN
(PC)
(PC) + 2
(PC) + rel
N
_
Rev. C – May 7, 1999
Z
!