Fneg.s negate fneg.s – Motorola DSP96002 User Manual
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DSP96002 USER’S MANUAL
MOTOROLA
FNEG.S
Negate
FNEG.S
Operation:
0 - D
→
ROUND(SP)
→
D
(parallel data bus move)
Assembler Syntax:
FNEG.S D
(move syntax - see the MOVE instruction
description.)
Description:
Subtract the destination operand D from zero, round to single precision and store the result in the destina-
tion operand D.
Input Operand(s) Precision: SEP Floating-Point.
Output Operand Precision: SP Floating-Point.
CCR Condition Codes:
C
- Not affected.
V
- Not affected.
Z
- Set if result is zero. Cleared otherwise.
N
- Set if result is negative. Cleared otherwise.
I
- Set if result is infinity. Cleared otherwise.
LR
- Not affected.
–
R
- Not affected.
A
- Not affected.
ER Status Bits:
INX
-Set if result is inexact. Cleared otherwise.
DZ
-Always cleared.
UNF
-Set if result underflows. Cleared otherwise.
OVF
-Set if result overflows. Cleared otherwise.
OPERR-Always cleared.
SNAN -Set if operand is a signaling NaN. Cleared otherwise.
NAN
-Set if result is a NaN. Cleared otherwise.
UNCC -Always cleared.
IER Flags: Flags changed according to standard definition.