User manual

PD-1141 TMCL Firmware V1.19 Manual (Rev. 1.01 / 2012-JUL-27) 41
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3.6.17 COMP (compare)
The specified number is compared to the value in the accumulator register. The result of the comparison
can for example be used by the conditional jump (JC) instruction. This command is intended for use in
standalone operation only.
The host address and the reply are only used to take the instruction to the TMCL program memory while
the program loads down. It does not make sense to use this command in direct mode.
Internal function: The specified value is compared to the internal accumulator, which holds the value of a
preceding get or calculate instruction (see GAP/GGP/ CALC/CALCX). The internal arithmetic status flags are
set according to the comparison result.
Related commands: JC (jump conditional), GAP, GGP, CALC, CALCX
Mnemonic: COMP <value>
Binary representation:
INSTRUCTION NO.
TYPE
MOT/BANK
VALUE
20
(don't care)
(don't care)
<comparison value>
Example:
Jump to the address given by the label when the position of motor is greater than or equal to
1000.
GAP 1, 2, 0 //get axis parameter, type: no. 1 (actual position), motor: 0, value: 0 (don't care)
COMP 1000 //compare actual value to 1000
JC GE, Label //jump, type: 5 greater/equal, the label must be defined somewhere else in the
program
Binary format of the COMP 1000 command:
Byte Index
0
1
2
3
4
5
6
7
Function
Target-
address
Instruction
Number
Type
Motor/
Bank
Operand
Byte3
Operand
Byte2
Operand
Byte1
Operand
Byte0
Value (hex)
$01
$14
$00
$00
$00
$00
$03
$e8