566
Special Math Instructions Section 3-14
Applicable Program Areas
Operand Specifications
Description 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.
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.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
Area S R
CIO Area CIO 0000 to CIO 6142 CIO 0000 to CIO 6143
Work Area W000 to W510 W000 to W511
Holding Bit Area H000 to H510 H000 to H511
Auxiliary Bit Area A000 to A958 A448 to A959
Timer Area T0000 to T4094 T0000 to T4095
Counter Area C0000 to C4094 C0000 to C4095
DM Area D00000 to D32766 D00000 to D32767
EM Area without bank E00000 to E32766 E00000 to E32767
EM Area with bank En_00000 to En_32766
(n = 0 to C)
En_00000 to En_32767
(n = 0 to C)
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants #00000000 to #FFFFFFFF
(binary)
---
Data Registers DR0 to DR15
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
RS+1 S
Binary data (32 bits) Binary data (16 bits)
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