Motorola DSP56000 Manual page 473

24-bit digital signal processor
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X: Y:
Note: The MOVE A,X:<eax> B,Y:<eay> operation will result in one or two 24-bit positive
and/or negative saturation constant(s) being stored in the specified 24-bit X and/or Y
memory location(s) if the signed integer portion of the A and/or B accumulator(s) is in use.
Instruction Format:
( . . . . . ) X:<eax>,D1 Y:<eay>,D2
( . . . . . ) X:<eax>,D1 S2,Y:<eay>
( . . . . . ) S1,X:<eax> Y:<eay>,D2
( . . . . . ) S1,X:<eax> S2,Y:<eay>
Opcode:
23
1
w
m
m
Instruction Fields:
X:<eax>=6-bit X Effective Address=WMMRRR (R0–R3 or R4–R7)
Y:<eay>=5-bit Y Effective Address=wmmrr (R4–R7 or R0–R3)
X Effective
Addressing Mode
(Rn)+Nn
(Rn)-
(Rn)+
(Rn)
where "sss" refers to an address register R0–R7
A - 204
INSTRUCTION DESCRIPTIONS
XY Memory Data Move
16 15
e
e
f
f
W
r
r
M M R R R
0 1 s s s
1 0 s s s
1 1 s s s
0 0 s s s
INSTRUCTION SET DETAILS
8
7
M
M
R
R
R
INSTRUCTION OPCODE
X: Y:
0
MOTOROLA

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