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Fneg.x negate fneg.x – Motorola DSP96002 User Manual

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DSP96002 USER’S MANUAL

MOTOROLA

FNEG.X

Negate

FNEG.X

Operation:

0 - D

D (parallel data bus move)

Assembler Syntax:

FNEG.X D
(move syntax - see the MOVE instruction descrip-

tion.)

Description:

Subtract the destination operand D from zero and store the result in the destination operand D.

Input Operand(s) Precision: SEP Floating-Point.

Output Operand Precision: SEP 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

-Always cleared.

DZ

-Always cleared.

UNF

-Always cleared.

OVF

-Always cleared.

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.

Instruction Format: FNEG.X D (move syntax - see the MOVE instruction description.)

10

0001

uu00

0ddd

31

14 13

0

OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA

DATA BUS MOVE FIELD