116
Floating-point Math Instructions
Section 3-13
32-BIT TO
FLOATING
FLTL
@FLTL
453
Output
Required
FLOATING-
POINT ADD
+F
@+F
454
Output
Required
FLOATING-
POINT SUB-
TRACT
–F
@–F
455
Output
Required
FLOATING-
POINT MULTIPLY
*F
@*F
456
Output
Required
FLOATING-
POINT DIVIDE
/F
@/F
457
Output
Required
Instruction
Mnemonic
Code
Symbol/Operand Function Location
Execution condition
S
R
FLTL(453)
S: 1st source
word
R: 1st result word
R+1 R
S
S+1
Signed binary data
(32 bits)
Floating-point data
(32 bits)
Converts a 32-bit signed binary value to 32-bit floating-point data and
places the result in the specified result words.
+F(454)
Au
Ad
R
Au: 1st augend
word
AD: 1st addend
word
R: 1st result word
R+1 R
Au
Ad
Ad+1
+
Au+1
Adds two 32-bit floating-point numbers and places the result in the
specified result words.
Augend (floating-point
data, 32 bits)
Addend (floating-point
data, 32 bits)
Result (floating-point
data, 32 bits)
−F(455)
Mi
Su
R
Mi: 1st Minuend
word
Su: 1st
Subtrahend word
R: 1st result word
R+1
R
Mi
Mi+1
Su
Su+1
−
Subtracts one 32-bit floating-point number from another and places
the result in the specified result words.
Minuend (floating-
point data, 32 bits)
Subtrahend (floating-
point data, 32 bits)
Result (floating-
point data, 32 bits)
Md
Mr
R
*F(456)
Md: 1st
Multiplicand word
Mr: 1st Multiplier
word
R: 1st result word
R+1
R
Md
Md+1
Mr
Mr+1
Result (floating-point
data, 32 bits)
Multiplier (floating-
point data, 32 bits)
Multiplicand (floating-
point data, 32 bits)
Multiplies two 32-bit floating-point numbers and places the result in
the specified result words.
×
/F(457)
Dd
Dr
R
Dd: 1st Dividend
word
Dr: 1st Divisor
word
R: 1st result word
R+1
R
Dd
Dd+1
Dr
Dr+1
÷
Divides one 32-bit floating-point number by another and places the
result in the specified result words.
Dividend (floating-
point data, 32 bits)
Divisor (floating-
point data, 32 bits)
Result (floating-
point data, 32 bits)
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