dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 578

• Manufacturer Part Number: dsp56000
• Description: 24-bit Digital Signal Processor Family Manual
• Manufacturer: Freescale Semiconductor, Inc

Section A.10.4 gives the encoding for the data ALU portion of those instructions which
allow parallel data moves. These 8-bit partial instruction codes may be combined with
the 16-bit parallel move opcodes listed in Section A.10.1 to form a complete 24-bit
instruction word.
A.10.1 Partial Encodings for Use in Instruction Encoding
A - 312
* For class II encodings for R:Y and X:R, see Table A-16
Table A-16 Single-Bit Special Register Encodings
Code
0
1
Table A-15 Single-Bit Register Encodings
Table A-17 Double-Bit Register Encodings
Freescale Semiconductor, Inc.
0
1
d
For More Information On This Product,
d*
A
B
Where: DD = 4 registers in data ALU
X:R Class II Opcode
A
B
INSTRUCTION SET DETAILS
INSTRUCTION ENCODING
Code
00
01
10
11
X:<ea> X0
X:<ea> X0
ee = 4 XDB registers in data ALU
ff = 4 YDB registers in data ALU
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X0
X1
e
DD
X0
X1
Y0
Y1
Y0
Y1
f
A
B
Where:
d = 2 Accumulators in Data ALU
e = 2 Registers in Data ALU
f = 2 Registers in Data ALU
X0
X1
ee
A
B
R:Y Class II Opcode
Y0
Y0
A A
B B
Y0
Y1
ff
A
B
Y:<ea>
Y:<ea>
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