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2 Instructions
2-150
CP1E CPU Unit Instructions Reference Manual(W483)
--/--L
Applicable Program Areas
Operands
Operand Specifications
Flags
Instruction Mnemonic Variations
Function
code
Function
DECREMENT BINARY -- @-- 592
Decrements the 4-digit hexadecimal content of the
specified word by 1.
DOUBLE DECREMENT
BINARY
--L @--L 593
Decrements the 8-digit hexadecimal content of the
specified words by 1.
Symbol
-- --L
Area Step program areas Subroutines Interrupt tasks
Usage OK OK OK
Operand Description
Data type Size
-- --L -- --L
Wd
--: Word
--L: First word
UINT UDINT 1 2
Area
Word addresses Indirect DM addresses
Constants CF
Pulse
bits
TR
bits
CIO WR HR AR T C DM @DM *DM
Wd OK OK OK OK OK OK OK OK OK --- --- --- ---
Name Label Operation
Error Flag P_ER OFF
Equals Flag P_EQ • ON if the result is 0000/0000 0000 after execution.
• OFF in all other cases.
Carry Flag P_CY • ON if a digit in Wd/Wd+1 or Wd went from 0 to F during execution.
• OFF in all other cases.
Negative Flag P_N • ON if bit 15 of Wd/Wd+1 is ON after execution.
• OFF in all other cases.
Wd: Word
--(592)
Wd
Wd: First word
--L(593)
Wd