Table of Contents
Advertisement
DBL/DBLL
Instruction
16-BIT TO DOUBLE FLOATING DBL
32-BIT TO DOUBLE FLOATING DBLL
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage
OK
Operands
Operand
DBL: Source word
S
DBLL: First source word
D
First destination word
Operand Specifications
• DBL
Area
CIO
WR
HR
S
OK
OK
OK
D
• DBLL
Area
CIO
WR
HR
S
OK
OK
OK
D
Flags
Name
Error Flag
Equals Flag
Negative Flag
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Mnemonic
Variations
@DBL
@DBLL
DBL
DBL(843)
S
S:
Source word
D
D: First destination word
Block program areas
Step program areas
OK
OK
Description
Word addresses
AR
T
C
DM
EM
OK
OK
OK
OK
OK
Word addresses
AR
T
C
DM
EM
OK
OK
OK
OK
OK
Label
ER
OFF
=
• ON if both the exponent and mantissa of the result are 0.
• OFF in all other cases.
N
• ON if the result is negative.
• OFF in all other cases.
Function
code
Converts a 16-bit signed binary value to double-
843
precision (64-bit) floating-point data and places
the result in the specified destination words.
Converts a double-precision (64-bit) floating-point
844
value to 32-bit signed binary data and places the
result in the specified result words.
Subroutines
OK
Data type
DBL
INT
LREAL
Indirect DM/EM
addresses
Con-
stants
@DM
*DM
DR
@EM
*EM
OK
OK
OK
OK
---
---
Indirect DM/EM
addresses
Con-
stants
@DM
*DM
DR
@EM
*EM
OK
OK
OK
---
---
Operation
3. Instructions
Function
DBLL
DBLL(844)
S
S:
First Source word
D
D: First destination word
SFC action or
Interrupt tasks
transition programs
OK
OK
Size
DBLL
DBL
DINT
1
LREAL
4
Registers
Flags
Pulse
bits
Indirect
IR
TK
CF
using IR
---
OK
---
---
---
Registers
Flags
Pulse
bits
Indirect
IR
TK
CF
using IR
---
OK
---
---
---
3
DBLL
2
4
TR
bits
---
TR
bits
---
515
Advertisement
Chapters
Table of Contents
