Root - Omron CJ - INSTRUCTIONS Reference Manual

3. Instructions

ROOT

Instruction
BCD SQUARE ROOT
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
S First source word
R Result word
Operand Specifications
Word addresses
Area
CIO WR HR
S
OK OK OK
R
Flags
Name
Error Flag
Equals Flag
Function
ROOT(072) computes the square root of the 8-digit
BCD number in S+1 and S and outputs the integer
portion of the result to R.
Note 1 The non-integer remainder is eliminated.
2 The operands of this instruction (S+1, S,
and R) are all treated as BCD values. If the
input data is binary, use the ROTB(620)
instruction.
450
Mnemonic Variations
ROOT @ROOT
Block program areas Step program areas
OK OK
Description
AR T C DM EM
OK OK OK OK OK
Label
ER • ON if the data in S+1 and S is not BCD.
• OFF in all other cases.
= • ON if the result is 0000.
• OFF in all other cases.
Function
code
Computes the square root of an 8-digit BCD num-
072 ber and outputs the integer portion of the result to
the specified result word.
ROOT
ROOT(072)
S: First source word
S
R: Result word
R
Subroutines
OK
Data type
DWORD
WORD
Indirect DM/EM
addresses
Con-
stants
@DM *DM
DR
@EM *EM
OK ---
OK OK
--- OK
Operation
S+1
Binary data (8 digits)
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Function
SFC action or
Interrupt tasks
transition programs
OK OK
Size
2
1
Registers Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- --- ---
S R
Binary data (4 digits)
TR
bits
---