MUL (BINARY)

Owned by CIMON (Unlicensed)
Jul 06, 2023
2 min read

MUL, MULP, DMUL, DMULP (Binary)

 

MUL instruction multiplies S1 with S2 and save the result in Destination (assigned device address).

 

 

S1, S2

Source

D

Destination

 

Instruction

Device address

No. of Steps

Flag

M

X

Y

K

L

F

T

C

S

Z

D

@D

Int.

 

Error

Zero

Carry

MUL(P)

DMUL(P)

S1

o

o

o

o

o

o

o

o

-

o

o

o

o

4

o

-

-

S2

o

o

o

o

o

o

o

o

-

o

o

o

o

D

o

-

o

o

o

-

o

o

-

o

o

o

-

 

MUL

Function

  • Multiply S1 with S2 and save the result as double word type to D (Low byte) and D+1 (High byte).

 

Example)

If X10 is ON, multiply H777(D1) with HCCC(D2) and save low byte(h06D4) to D20 and save high byte(h5F92) to D21.

 

 

 

 

DMUL

Function

  • Multiply S1(Double word) with S2(Double word) and save the result as 4 word type to D, D+1, D+2, and D+3 in sequence.

 

Example)

If X10 is ON, multiply H000F4240(D0) with H0012D687(D2) and then save H6FC0 to D4, H71ED to D5, H011F to D6, and H0000 to D7 in sequence.