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ER Status Bits:
INX
DZ
UNF
OVF
OPERR- Set if one of the multiply operands is infinity and the other is zero. Set if the addition
SNAN - Set if anyone of the source operands is a signaling NaN. Cleared otherwise.
NAN
UNCC - Always cleared.
IER Flags: Flags changed according to standard definition.
Instruction Format:
31
DATA BUS MOVE FIELD
OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA
Instruction Fields:
D1
Dn
D2
Dn
S3
Dn
Timing: 2 + mv + da oscillator clock cycles
Memory: 1 + mv program words
MOTOROLA
- Set if the result of the addition, subtraction or multiplication is inexact. Cleared oth-
erwise.
- Always cleared.
- Set if the result of the addition, subtraction or multiplication underflows. Cleared
otherwise.
- Set if the result of the addition, subtraction or multiplication overflows. Cleared oth-
erwise.
operands are opposite-signed infinities. Set if the subtract operands are like-
signed infinities. Cleared otherwise.
- Set if result of the addition is a NaN. Cleared otherwise.
FMPY S1,S2,D1 FADDSUB.X D3,D2 (move syntax - see the MOVE instruction
description.)
FMPY S2,S1,D1 FADDSUB.X D3,D2 (move syntax - see the MOVE instruction
description.)
D D
n n
where nn = 0-3
d d
n n
where nn = 0-3
s s s
n n n
where nnn = 0-7
DSP96002 USER'S MANUAL
14 13
10
0sss
S1*S2
D0*D4
D4*D4
D4*D5
D4*D6
D5*D6
D4*D7
D5*D7
D6*D7
D4*D8
D5*D8
D6*D8
D7*D8
D4*D9
D5*D9
D6*D9
D7*D9
0
ddQQ
QQDD
Q QQ Q
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
A - 145
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