dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 659

• Manufacturer Part Number: dsp56800e
• Description: 16-bit Digital Signal Controller Core
• Manufacturer: Freescale Semiconductor, Inc

A.3.1
Table A-7 contains the encoding fields that are used to specify data ALU registers in most instructions.
Note that different encoding field specifiers are sometimes used to indicate the same set of possible
registers.
Freescale Semiconductor
Register Operand Encodings
Encoding Field
EEE
FFF
~F
aaa
bbb
DD
FF
bb
F
1
Table A-7. Data ALU Register Operand Encodings
Instruction Set Details
Value
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
00
01
10
11
00
01
10
11
0
1
(Reserved)
(Reserved)
Register
X0
Y0
Y1
X0
Y0
Y1
X0
Y0
Y1
A
B
A
B
C
D
A
B
C
D
A
B
C
D
Y
A-315