Multiply '*'

Syntax

Assignment Variable = Variable * Variable

Overview

Multiplies variables and/or constants, returning an unsigned or signed 8, 16, 24, 32-bit or floating point result.

Operands

Variable can be a constant, variable or expression. Assignment Variable can be any valid variable type.

Multiply works exactly as you would expect with signed or unsigned integers from -2147483648 to +2147483647 as well as floating point. If the result of multiplication is larger than 2147483647 when using 32-bit variables, the excess bit will be lost.

Example 1

Device = 18F26K40             ' Select the device to compile for
Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
Declare Hserial_Baud = 9600   ' Set the Baud rate for HRsoutLn

Dim wMyVar1 as Word = 1000    ' Create a variable and assign a value to it
Dim wMyVar2 as Word = 19       ' Create a variable and assign a value to it

wMyVar1 = wMyVar1 * wMyVar2    ' Multiply wMyVar1 by wMyVar2
HRsoutLn Dec wMyVar1           ' Display the result

Example 2

  Device = 18F26K40             ' Select the device to compile for
  Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
  Declare Hserial_Baud = 9600   ' Set the Baud rate for HRsoutLn

' 32-bit multiplication
  Dim wMyVar1 as Word
  Dim dMyVar2 as Dword

  wMyVar1 = 100
  dMyVar2 = 10000
  dMyVar2 = dMyVar2 * wMyVar1    ' Multiply the numbers
  HRsoutLn Dec dMyVar2           ' Display the result

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