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Instruction Functions
Section 2-2
2-2-14 Double-precision Floating-point Instructions
The Double-precision Floating-point Instructions are supported only by the
CS1-H, CJ1-H, CJ1M, or CS1D CPU Units.
FLOATING-
POINT TO ASCII
(CS1-H, CJ1-H,
CJ1M, or CS1D
only)
FSTR
@FSTR
448
Converts the specified single-precision floating-point data (32-bit deci-
mal-point or exponential format) to text string data (ASCII) and outputs
the result to the destination word.
Output
required
ASCII TO FLOAT-
ING-POINT (CS1-
H, CJ1-H, CJ1M,
or CS1D only)
FVAL
@FVAL
449
Converts the specified text string (ASCII) representation of single-pre-
cision floating-point data (decimal-point or exponential format) to 32-bit
single-precision floating-point data and outputs the result to the desti-
nation words.
Output
required
Instruction
Mnemonic
Code
Symbol/Operand
Function
Location
Execution
condition
Page
S: 1st source
word
C: Control word
D: Destination
word
FSTR(448)
S
C
D
S: Source word
D: 1st destination
word
FVAL(449)
S
D
Instruction
Mnemonic
Code
Symbol/Operand
Function
Location
Execution
condition
Page
DOUBLE FLOAT-
ING TO 16-BIT
BINARY
FIXD
@FIXD
841
Converts the specified double-precision floating-point data (64 bits) to 16-
bit signed binary data and outputs the result to the destination word.
Output
Required
DOUBLE FLOAT-
ING TO 32-BIT
BINARY
FIXLD
@FIXLD
842
Converts the specified double-precision floating-point data (64 bits) to 32-
bit signed binary data and outputs the result to the destination words.
Output
Required
16-BIT BINARY
TO DOUBLE
FLOATING
DBL
@DBL
843
Converts the specified 16-bit signed binary data to double-precision float-
ing-point data (64 bits) and outputs the result to the destination words.
Output
Required
S: 1st source
word
D: Destination
word
FIXD(841)
S
D
S: 1st source
word
D: 1st destination
word
FIXLD(842)
S
D
S: Source word
D: 1st destination
word
DBL(843)
S
D
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...