326
BCD Calculation Instructions
Section 5-21
Description
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.
Flags
ER:
Md, Md+1,Mr, or Mr+1 is not BCD.
Indirectly addressed EM/DM word is non-existent.
(Content of
*
EM/
*
DM word is not BCD, or the EM/DM area boundary
has been exceeded.)
CY:
ON when there is a carry in the result.
EQ:
ON when the result is 0.
5-21-10 DOUBLE BCD DIVIDE – DIVL(57)
Limitations
DM 6141 to DM 6655 cannot be used for R.
Description
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
divided by the content of Dr and Dr+1 and the result is placed in R to R+3: the
quotient in R and R+1, the remainder in R+2 and R+3.
Flags
ER:
Dr and Dr+1 contain 0.
Dd, Dd+1, Dr, or Dr+1 is not BCD.
Indirectly addressed EM/DM word is non-existent.
(Content of
*
EM/
*
DM word is not BCD, or the EM/DM area boundary
has been exceeded.)
EQ:
ON when the result is 0.
Md + 1
Md
Mr + 1
Mr
R + 1
R
R + 3
R + 2
x
Dd
:
First dividend word (BCD)
IR, SR, AR, DM, EM, HR, TIM/CNT, LR
Dr
:
First divisor word (BCD)
IR, SR, AR, DM, EM, HR, TIM/CNT, LR
Ladder Symbols
Operand Data Areas
R
:
First result word
IR, SR, AR, DM, EM, HR, LR
DIVL(57)
Dd
Dr
R
@DIVL(57)
Dd
Dr
R
R+1
R
Quotient
Remainder
Dd+1
Dd
Dr+1
Dr
R+3
R+2
