FIFW

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

FIFW, FIFWP

 

FIFW instruction copies the source to the Destination (assigned device address).

 

 

S

Source to copy

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

FIFW

FIFWP

S

o

o

o

o

o

o

o

o

-

o

o

o

o

3

o

-

-

D

-

-

-

-

-

-

-

-

-

o

o

o

-

 

  • When enabled, the number of word device(S) is increased by one word.

  • FIFW(P) instruction shift each element of array (S+1 ~ S+3)  into the same position within array S and copies 1234 (D) and places at the end of element of array S (S+4).

 

 

Example)

If X00 is ON, copy D11, D12 and D13 (3 array) and write them to the same position.

The number of word device 3 in D10 is increased to 4 word.

And then FIFW copies 2222 (D00) to D14.