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5-20-3 BINARY MULTIPLY – MLB(52)
Md: Multiplicand word (binary)
IR, SR, AR, DM, HR, TC, LR, #
Mr: Multiplier word (binary)
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols
Operand Data Areas
R: First result word
IR, SR, AR, DM, HR LR
MLB(52)
Md
Mr
R
@MLB(52)
Md
Mr
R
Limitations R and R+1 must be in the same data area.
Description When the execution condition is OFF, MLB(52) is not executed. When the ex-
ecution
condition is ON, MLB(52) multiplies the content of Md by the contents
of
Mr,
places the rightmost four digits of the result in R,
and places the leftmost four
digits in R+1.
Md
Mr
R
+1
R
X
Precautions MLB(52)
cannot be used to multiply signed binary data.
Use MBS(––) instead.
Refer to 5-20-7 SIGNED BINARY MULTIPLY – MBS(––) for details.
Flags ER: Indirectly
addressed
DM word is non-existent. (Content of
:
DM word is
not BCD, or the DM area boundary has been exceeded.)
EQ: ON when the result is 0.
5-20-4 BINARY DIVIDE – DVB(53)
Dd: Dividend word (binary)
IR, SR, AR, DM, HR, TC, LR, #
Dr: Divisor word (binary)
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols
Operand Data Areas
R: First result word
IR, SR, AR, DM, HR LR
DVB(53)
Dd
Dr
R
@DVB(53)
Dd
Dr
R
Description When the execution condition is OFF, DVB(53) is not executed. When the ex-
ecution
condition is ON, DVB(53) divides the content of Dd by the content of Dr
and
the result is placed in R and
R+1: the quotient in R, the remainder in R+1.
DdDr
R
R + 1
Quotient Remainder
Binary Calculations Section 5-20
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