Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual page 484

BCD Calculation Instructions
7-21-9 DOUBLE BCD MULTIPLY – MULL(56)
Limitations
Description
Flags
7-21-10 DOUBLE BCD DIVIDE – DIVL(57)
Limitations
Description
466
Ladder Symbols
MULL(56) @MULL(56)
Md
Mr
R
DM 6144 to DM 6655 cannot be used for R.
When the execution condition is OFF, MULL(56) is not executed. When the
execution condition is ON, MULL(56) multiplies the eight-digit content of Md and
Md+1 by the content of Mr and Mr+1, and places the result in R to R+3.
ER: Md, Md+1,Mr, or Mr+1 is not BCD.
Indirectly addressed DM word is non-existent. (Content of *DM word is
not BCD, or the DM area boundary has been exceeded.)
CY: ON when there is a carry in the result.
EQ: ON when the result is 0.
Ladder Symbols
DIVL(57) @DIVL(57)
Dd
Dr
R
DM 6144 to DM 6655 cannot be used for R.
When the execution condition is OFF, DIVL(57) is not executed. When the
execution condition is ON, DIVL(57) the eight-digit content of Dd and D+1 is di-
vided by the content of Dr and Dr+1 and the result is placed in R to R+3: the quo-
tient in R and R+1, the remainder in R+2 and R+3.
Remainder
R+3
Dr+1
Md: First multiplicand word (BCD)
Md
Mr
R
Md + 1
x
Mr + 1
R + 3 R + 2 R + 1
Dd
Dr
R
R+2 R+1
Dr Dd+1
Section
Operand Data Areas
IR, SR, AR, DM, HR, TC, LR
Mr: First multiplier word (BCD)
IR, SR, AR, DM, HR, TC, LR
R: First result word
IR, SR, AR, DM, HR LR
Md
Mr
R
Operand Data Areas
Dd: First dividend word (BCD)
IR, SR, AR, DM, HR, TC, LR
Dr: First divisor word (BCD)
IR, SR, AR, DM, HR, TC, LR
R: First result word
IR, SR, AR, DM, HR LR
Quotient
R
Dd
7-21