Motorola DSP56000 Manual page 520

24-bit digital signal processor
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REP
Instruction Format:
REP X:ea
REP Y:ea
Opcode:
23
0
0
0
0
Instruction Fields:
ea=6-bit Effective Address=MMMRRR,
Effective
Addressing Mode
(Rn)-Nn
(Rn)+Nn
(Rn)-
(Rn)+
(Rn)
(Rn+Nn)
-(Rn)
where "rrr" refers to an address register R0-R7
Timing: 4+mv oscillator clock cycles
Memory: 1 program word
MOTOROLA
INSTRUCTION SET DESCRIPTIONS
Repeat Next Instruction
16 15
0
1
1
0
0
1
M
M M M R R R
0 0 0 r r r
0 0 1 r r r
0 1 0 r r r
0 1 1 r r r
1 0 0 r r r
1 0 1 r r r
1 1 1 r r r
INSTRUCTION SET DETAILS
8
7
M
M
R
R
R
0
s
Memory Space s
X Memory
0
Y Memory
1
REP
0
1
0
0
0
0
0
A - 251

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