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2. Summary of Instructions
2-2-14 Double-precision Floating-point Instructions
Instruction
Symbol/Operand
Mnemonic
Code
DOUBLE FLOAT-
ING TO 16-BIT
FIXD(841)
BINARY
FIXD
@FIXD
841
S: 1st source
word
D: Destination
word
DOUBLE FLOAT-
ING TO 32-BIT
FIXLD(842)
BINARY
FIXLD
@FIXLD
842
S: 1st source
word
D: 1st destination
word
16-BIT BINARY
TO DOUBLE
DBL(843)
FLOATING
DBL
@DBL
843
S: Source word
D: 1st destination
word
32-BIT BINARY
TO DOUBLE
DBLL(844)
FLOATING
DBLL
@DBLL
844
S: 1st source
word
D: 1st destination
word
DOUBLE FLOAT-
ING-POINT ADD
+D(845)
+D
@+D
845
Au: 1st augend
word
Ad: 1st addend
word
R: 1st result word
DOUBLE FLOAT-
ING-POINT SUB-
TRACT
D
@ D
846
Mi: 1st minuend
word
Su: 1st subtra-
hend word
R: 1st result word
78
The Double-precision Floating-point Instructions are supported only by the
CJ2, CS1-H, CJ1-H, CJ1M, or CS1D CPU Units.
Converts the specified double-precision floating-point data (64 bits) to 16-
bit signed binary data and outputs the result to the destination word.
S
D
Converts the specified double-precision floating-point data (64 bits) to 32-
bit signed binary data and outputs the result to the destination words.
S
D
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.
S
D
Converts the specified 32-bit signed binary data to double-precision float-
ing-point data (64 bits) and outputs the result to the destination words.
S
D
Adds the specified double-precision floating-point values (64 bits each)
and outputs the result to the result words.
Au
Ad
R
Subtracts the specified double-precision floating-point values (64 bits
each) and outputs the result to the result words.
D(846)
Mi
Su
R
Function
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Location
Page
Execution
condition
Output
519
Required
Output
519
Required
Output
521
Required
Output
521
Required
Output
523
Required
Output
523
Required
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