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DESCRIPTION OF INSTRUCTIONS
301
46. JNB bit address, code address (Jump if bit is not set)
00110000
70
Instruction code
Bit address
Relative offset
Operations
Number of bytes
Number of cycles
Flags
(PSW)
Description
: Byte 1
R7 R6 R5 R4 R3 R2 R1 R0
70
Byte 3
(PC)←(PC)+3
IF (bit address)=0
THEN
(PC)←(PC)+relative offset
:
C AC F0 RS1 RS0 OV F1 P
:
:
:
Control is shifted to a relative jump address if the specified bit
address content is 0, but shifted to the next address following
this instruction if the content is 1.
:
3
2
b7 b6 b5 b4 b3 b2 b1 b0
70
Byte 2