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Motorola DSP96002 User Manual

Page 335

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MOTOROLA

DSP96002 USER’S MANUAL

A - 147

OPERR-Set if one of the multiply operands is infinity and the other is zero. Set if the subtract

operands are like-signed infinities. Cleared otherwise.

SNAN -Set if anyone of the source operands is a signaling NaN. Cleared otherwise.

NAN

-Set if result of the subtraction is a NaN. Cleared otherwise.

UNCC -Always cleared.

IER Flags: Flags changed according to standard definition.

Instruction Fields:

D1

D D

Dn

n n

where nn = 0-3

D2

d d

Dn

n n

where nn = 0-3

S3

s s s

Dn

n n n

where nnn = 0-7

S1*S2

Q QQ Q

D0*D4

0 0 0 0

D4*D4

0 0 0 1

D4*D5

0 0 1 0

D4*D6

0 0 1 1

D5*D6

0 1 0 0

D4*D7

0 1 0 1

D5*D7

0 1 1 0

D6*D7

0 1 1 1

D4*D8

1 0 0 0

D5*D8

1 0 0 1

D6*D8

1 0 1 0

D7*D8

1 0 1 1

D4*D9

1 1 0 0

D5*D9

1 1 0 1

D6*D9

1 1 1 0

D7*D9

1 1 1 1

Timing: 2 + mv + da oscillator clock cycles
Memory: 1 + mv program words

01

1sss

ddQQ

QQDD

31

14 13

0

OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA

DATA BUS MOVE FIELD

Instruction Format: FMPY S1,S2,D1 FSUB.S S3,D2 (move syntax - see the MOVE instruction de-

scription.)