Maxim Integrated DS4830 Optical Microcontroller - Manual (Page 199)

DS4830 User’s Guide
199
{L/S} JUMP C / {L/S} JUMP NC, src Conditional {Long/Short} Jump on Status Flag
{L/S} JUMP Z / {L/S} JUMP NZ, src
{L/S} JUMP E / {L/S} JUMP NE, src
{L/S} JUMP S, src
Description:
Performs conditional branching based upon the state of a specific processor status flag. JUMP C
results in a branch if the Carry flag is set while JUMP NC branches if the Carry flag is clear.
JUMP Z results in a branch if the Zero flag is set while JUMP NZ branches if the Zero flag is
clear. JUMP E results in a branch if the Equal flag is set while JUMP NE branches if the Equal
flag is clear. JUMP S results in a branch if the Sign flag is set. Program branches can be relative
or absolute depending upon the src
specifier and may be qualified by using the ‘L’ or ‘S’ prefixes
as documented in the JUMP src opcode. Special src restrictions apply to JUMP E and JUMP
NE.
Status Flags: None
JUMP C
Operation:
C=1: IP  IP + src (relative) –or— src (absolute)
C=0: IP  IP + 1
Encoding:
15 0
f010 1100 ssss ssss
Example(s):
JUMP C, label1 ; C=0, branch not taken
JUMP NC
Operation:
C=0: IP  IP + src (relative) –or— src (absolute)
C=1: IP  IP +1
Encoding:
15 0
f010 1100 ssss ssss
Example(s):
JUMP NC, label1 ; C=0, branch taken
JUMP Z
Operation:
Z=1: IP  IP + src
Z=0: IP  IP + 1
Encoding:
15 0
f001 1100 ssss ssss
Example(s):
JUMP Z, label1 ; Z=1, branch taken