Omron C200HE User Manual

Md: First multiplicand word (BCD)

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

MULL(56)

Md

Mr

R

@MULL(56)

Md

Mr

R

Md and Md+1 must be in the same data area, as must Mr and Mr+1.

R through R+3 must be in the same data area.

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.

Md + 1

Md

Mr + 1

Mr

R + 1

R

R + 3

R + 2

x

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.)

EQ:

ON when the result is 0.

Dd: Dividend word (BCD)

IR, SR, AR, DM, HR, TC, LR, #

Dr: Divisor word (BCD)

IR, SR, AR, DM, HR, TC, LR, #

DIV(33)

Dd

Dr

R

R: First result word (BCD)

IR, SR, AR, DM, HR, LR

R and R+1 must be in the same data area.

When the execution condition is OFF, DIV(33) is not executed and the program
moves to the next instruction. When the execution condition is ON, Dd is divided
by Dr and the result is placed in R and R + 1: the quotient in R and the remainder
in R + 1.

R+1

  

R

Dd

Dr

Quotient

Remainder