B/*Bl - Omron SYSMAC CP Series Instruction & Reference Manual

*B/*BL

Instruction
BCD MULTIPLY
DOUBLE BCD MULTIPLY
Symbol
Applicable Program Areas
Area
Usage
Operands
Operand
*B: Multiplicand word
Md
*BL: First multiplicand word
*B: Multiplier word
Mr
*BL: First multiplier word
R First result word
Operand Specifications
Word addresses
Area
CIO WR HR
Md, Mr
OK OK OK
R
Flags
Name
Error Flag P_ER
Equals Flag P_EQ
CP1E CPU Unit Instructions Reference Manual(W483)
Mnemonic Variations
*B @*B
*BL @*BL
*B
*B(424)
Md Md: Multiplicand word
Mr Mr: Multiplier word
R R: Result word
Step program areas
OK
Description
AR T C DM
OK OK OK OK
Label
• ON when Md is not BCD.
• ON when Mr is not BCD.
• OFF in all other cases.
• ON when the result is 0.
• OFF in all other cases.
Function
code
Multiplies 4-digit (single-word) BCD data and/or
424
constants.
Multiplies 8-digit (double-word) BCD data and/or
425
constants.
Subroutines
OK
Data type
*B *BL
WORD DWORD
WORD DWORD
DWORD LWORD
Indirect DM addresses
Constants
@DM *DM
OK
OK OK
---
Operation
*B
• ON when Md and/or Md+1 are not BCD.
• ON when Mr and/or Mr +1 are not BCD.
• OFF in all other cases.
• ON when the result is 0.
• OFF in all other cases.
2 Instructions
Function
*BL
*BL(425)
Md Md: 1st multiplicand word
Mr Mr: 1st multiplier word
R R: 1st result word
Interrupt tasks
OK
Size
*B *BL
1 2
1 2
2 4
CF Pulse bits TR bits
--- --- ---
*BL
2-179
2