TSC80251 TEMIC [TEMIC Semiconductors], TSC80251 Datasheet - Page 137
TSC80251
Manufacturer Part Number
TSC80251
Description
Manufacturer
TEMIC [TEMIC Semiconductors]
Datasheet
1.TSC80251.pdf
(219 pages)
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TSC80251
JNB bit51,rel JNB bit,rel
Function:
Jump if bit not set
Description:
If the specified bit is clear, branch to the specified address; otherwise proceed with the next instruction. The branch
destination is computed by adding the signed relative displacement in the third instruction byte to the PC, after
incrementing the PC to the first byte of the next instruction. The bit tested is not modified.
Example :
Input Port 1 contains 11001010B and the accumulator contains 56h (01010110B). After executing the instruction
sequence:
program execution continues at label LABEL2.
JNB bit51,rel
[Encoding]
JNB bit,rel
[Encoding]
5.92
FLAGS :
Hex Code in:
Binary Mode = [Encoding]
Source Mode = [Encoding]
Hex Code in:
Binary Mode = [A5][Encoding]
Source Mode = [Encoding]
0011
1010
JNB P1.3,LABEL1
JNB ACC.3,LABEL2
CY
_
0000
1001
AC
_
bit addr
0011
OV
_
rel addr
00yy
Operation:
JNB
(PC)
IF [(bit51) = 0]
Operation:
JNB
(PC)
IF [(bit) = 0]
THEN
(PC)
THEN
(PC)
(PC) + 3
(PC) + 3
(PC) + rel
(PC) + rel
bit addr
N
_
rel addr
Rev. C – May 7, 1999
Z
_