Stereo System User Manual

MOTOROLA DSP96002 USER’S MANUAL A - 143
ER Status Bits:
INX -Set if the result of the addition, subtraction or multiplication is inexact. Cleared oth-
erwise.
DZ -Always cleared.
UNF -Set if the result of the addition, subtraction or multiplication underflows. Cleared oth-
erwise.
OVF -Set if the result of the addition, subtraction or multiplication overflows. Cleared oth-
erwise.
OPERR-Set if one of the multiply operands is infinity and the other is zero. Set if the addition
operands are opposite-signed infinities. 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 addition is a NaN. Cleared otherwise.
UNCC -Always cleared.
IER Flags: Flags changed according to standard definition.
Instruction Format:
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
10 1sss ddQQ QQDD
31 14 13 0
OPTIONAL EFFECTIVE ADDRESS EXTENSION OR IMMEDIATE LONG DATA
DATA BUS MOVE FIELD
S1*S2 Q QQQ
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