Omron SYSMAC CJ - REFERENCE MANUAL 08-2008

659
Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only) Section 3-16
Description FIXLD(842) converts the integer portion of the double-precision (64-bit) float-
ing-point number in words S to S+3 (IEEE754-format) to 32-bit signed binary
data and places the result in D+1 and D.
Only the integer portion of the floating-point data is converted, and the fraction
portion is truncated. (The integer portion of the floating-point data must be
within the range of –2,147,483,648 to 2,147,483,647.)
Example conversions:
A floating-point value of 2,147,483,640.5 is converted to 2,147,483,640.
A floating-point value of –2,147,483,640.5 is converted to –2,147,483,640.
Flags
Holding Bit Area H000 to H508 H000 to H510
Auxiliary Bit Area A000 to A956 A448 to A958
Timer Area T0000 to T4092 T0000 to T4094
Counter Area C0000 to C4092 C0000 to C4094
DM Area D00000 to D32764 D00000 to D32766
EM Area without bank E00000 to E32764 E00000 to E32766
EM Area with bank En_00000 to En_32766
(n = 0 to C)
En_00000 to En_32766
(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 ---
Data Registers ---
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
Area S D
S+3CH
D+1CH
SCH
DCH
S+2CH S+1CH
Floating-point data (64 bits)
Signed binary data (32 bits)
Name Label Operation
Error Flag ER ON if the data in words S to S+3 is not a number (NaN).
ON if the integer portion of words S to S+3 is not within
the range of –2,147,483,648 to 2,147,483,647.
OFF in all other cases.
Equals Flag = ON if the result is 0000 0000.
OFF in all other cases.
Negative Flag N ON if bit 15 of D+1 is ON after execution.
OFF in all other cases.