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2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)

Symbol Math Instructions

2

*/*L

*/*L
Applicable Program Areas
Operands
Operand Specifications
Flags

Instruction Mnemonic Variations Function

code Function

SIGNED BINARY MULTIPLY * @* 420 Multiplies 4-digit signed hexadecimal data and/or

constants.

DOUBLE SIGNED BINARY

MULTIPLY *L @*L 421 Multiplies 8-digit signed 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
Md *: Multiplicand word
*L: First multiplicand word INT DINT 1 2
Mr *: Multiplier word
*L: First multiplier word INT DINT 1 2
R First result word DINT LINT 2 4
Area Word addresses Indirect DM addresses Constants CF Pulse bits TR bits
CIO WR HR AR T C DM @DM *DM
Md, Mr 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.
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.
*(420)
R
Md
Mr
Md: Multiplicand word
Mr: Multiplier word
R: Result word
*L(421)
R
Md
Mr
Md: 1st multiplicand word
Mr: 1st multiplier word
R: 1st result word