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Motorola DSP96002 User Manual

Page 297

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MOTOROLA

DSP96002 USER’S MANUAL

A - 109

CCR Condition Codes:

(Note: Since there is no destination, there is no rounding and therefore the condition codes are set assum-
ing an infinite precision result)

C

- Set if result is a NaN. Set if result is negative and not zero. Cleared otherwise.

V

- Not affected.

Z

- Set if source operands are equal. Cleared otherwise.

N

- Set if result is negative. Cleared otherwise.

I

- Set if anyone of the operands is infinity. Cleared otherwise.

LR

- Always set (initialize for the next FCMP, FCMPG combination).

R

- Cleared if result is a NaN. Cleared if result is negative and not zero and LR was set

(i. e., first point was rejected). Not affected otherwise.

A

- Cleared if result is a NaN. Cleared if result is negative and not zero. Not affected

otherwise.

ER Status Bits:

IER Flags: Flags changed according to standard definition.

Instruction Format: FCMPG S1,S2 (move syntax - see the MOVE instruction description.)

Instruction Fields:

S1

s s s

Dn

n n n

where nnn = 0-7

(u u)

S2

d d d

Dn

n n n

where nnn = 0-7

Timing: 2 + mv + da oscillator clock cycles

Memory: 1 + mv program words

01

1sss

uu10

1ddd

31

14 13

0

OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA

DATA BUS MOVE FIELD