Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual page 606

Special Math Instructions
Applicable Program Areas
Operand Specifications
Description
Block program areas
OK OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
ROTB(620) computes the square root of the 32-bit binary number in S+1 and
S and outputs the integer portion of the result to R. The non-integer remainder
is eliminated.
S+1
Binary data (32 bits)
The range of data that can be specified for words S+1 and S is 0000 0000 to
3FFF FFFF. If a number from 4000 0000 to 7FFF FFFF is specified, it will be
treated as 3FFF FFFF for the square root computation. An error will occur if
the content of the source words is greater than 7FFF FFFF, i.e., if bit 15 of
S+1 is 1.
Step program areas Subroutines
OK
S
CIO 0000 to CIO 6142
W000 to W510
H000 to H510
A000 to A958
T0000 to T4094
C0000 to C4094
D00000 to D32766
E00000 to E32766
En_00000 to En_32766
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
#00000000 to #FFFFFFFF
(binary)
DR0 to DR15
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
S
Section 3-14
Interrupt tasks
OK
R
CIO 0000 to CIO 6143
W000 to W511
H000 to H511
A448 to A959
T0000 to T4095
C0000 to C4095
D00000 to D32767
E00000 to E32767
En_00000 to En_32767
(n = 0 to C)
---
R
Binary data (16 bits)
567