TMCM-6212 TMCL
™
Firmware Manual • Firmware Version V1.11 | Document Revision V1.07 • 2019-JAN-25
83 / 140
3.6.41
DJNZ (Decrement and Jump if not Zero)
Decrement a given user variable and jump to the given address if the user variable is greater than zero.
This command can for example be used to easily program a counting loop, using any user variable as the
loop counter.
This command is intended for standalone operation only.
Internal function:
The user variable passed to this command is decremented. If it is not zero then the
TMCL program counter is set to the value passed to this command.
Related commands:
JC, WAIT, CSUB.
Mnemonic:
DJNZ <var>, <label>
Binary Representation
Instruction
Type
Motor/Bank
Value
49
<user variable> (0. . . 255)
0 (don’t care)
<jump address>
Example
A counting loop in TMCL, using user variable #42:
SGP 42, 2, 100
2
Loop :
MVP ABS , REL , 51200
4
WAIT POS , 0, 0
WAIT TICKS , 0, 500
6
DJNZ 42, Loop
Binary form of the DJNZ 42, Loop command when the label Loop is at address 1:
Binary Form of DJNZ Loop (as-
suming Loop at address 1)
Field
Value
Target address
01
h
Instruction number
31
h
Type
64
h
Motor/Bank
00
h
Value (Byte 3)
00
h
Value (Byte 2)
00
h
Value (Byte 1)
00
h
Value (Byte 0)
01
h
Checksum
97
h
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