BKCMP Block Comparison Operation

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

Relational operators (Block comparison)

 

Relational operators compare two values or strings to provide a true and false result.

 

S1

Value to compare

S2

Value to compare

D

Destination where comparison result is stored

n

Number of block for comparison

 

Instruction

Device address

No. of Steps

Flag

M

X

Y

K

L

F

T

C

S

Z

D

@D

Int.

Error

Zero

Carry

BKCMP

BKCMPP

S1

o

o

o

o

o

o

o

o

-

o

o

o

o

5

o

-

-

S2

o

o

o

o

o

o

o

o

-

o

o

o

o

D

o

-

o

o

o

-

o

o

-

o

o

o

o

n

o

o

o

o

o

o

o

o

o

o

o

o

o

 

  • Compare n number of S1 and n number of S2 and save the result to the Destination.

  • If the result is true then the assigned bit on D will be turned ON.

  • If the result is false then the assigned bit on D will be turned OFF.

 

Comparison

Operator

Result

BKCMP< Less than

S1 < S2

ON

BKCMP<= Less than or equal

S1 <= S2

ON

BKCMP= equal to

S1 = S2

ON

BKCMP> Greater than

S1 > S2

ON

BKCMP>= Greater than or equal

S1 >= S2

ON

BKCMP<> Not equal

S1 ≠ S2

ON

 

Example)

If X00 is ON and D0, D1 and D2 are less than D10, D11 and D13 then set the D100, D101 and D103 to 1 in sequence.