Omron SYSMAC CP CP1E-N@@D@-@ Bedienungsanleitung Seite 202

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2 Instructions
2-166
CP1E CPU Unit Instructions Reference Manual(W483)
–/–L
Applicable Program Areas
Operands
Operand Specifications
Flags
Instruction Mnemonic Variations
Function
code
Function
SIGNED BINARY SUBTRACT
WITHOUT CARRY
@– 410
Subtracts 4-digit (single-word) hexadecimal data
and/or constants.
DOUBLE SIGNED BINARY
SUBTRACT WITHOUT
CARRY
–L @–L 411
Subtracts 8-digit (double-word) hexadecimal data
and/or constants.
Symbol
–L
Area Step program areas Subroutines Interrupt tasks
Usage OK OK OK
Operand Description
Data type Size
–L –L
Mi
–: Minuend word
–L: First minuend word
INT DINT 1 2
Su
–: Subtrahend word
–L: First subtrahend word
INT DINT 1 2
R
–: Result word
–L: First result word
INT DINT 1 2
Area
Word addresses Indirect DM addresses
Constants CF Pulse bits TR bits
CIO WR HR AR T C DM @DM *DM
Mi, Su
OK OK OK OK OK OK OK OK OK
OK
--- --- ---
R ---
Name Label
Operation
–L
Error Flag P_ER OFF OFF
Equals Flag P_EQ ON when the result is 0.
OFF in all other cases.
ON when the result is 0.
OFF in all other cases.
Carry Flag P_CY ON when the subtraction results in a borrow.
OFF in all other cases.
ON when the subtraction results in a borrow.
OFF in all other cases.
Overflow Flag P_OF ON when the result of subtracting a negative num-
ber from a positive number is in the range 8000 to
FFFF hex.
OFF in all other cases.
ON when the result of subtracting a negative num-
ber from a positive number is in the range
80000000 to FFFFFFFF hex.
OFF in all other cases.
Underflow Flag P_UF ON when the result of subtracting a negative num-
ber from a positive number is in the range 0000 to
7FFF hex.
OFF in all other cases.
ON when the result of subtracting a positive num-
ber from a negative number is in the range
00000000 to 7FFFFFFF hex.
OFF in all other cases.
Negative Flag P_N ON when the leftmost bit of the result is 1.
OFF in all other cases.
ON when the leftmost bit of the result is 1.
OFF in all other cases.
R
Mi
Su
Mi: Minuend word
Su: Subtrahend word
R: Result word
-(410)
R
Mi
Su
Mi: Minuend word
Su: Subtrahend word
R: Result word
-L(410)
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