Instruction fields – Freescale Semiconductor StarCore SC140 User Manual
Page 554
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A-240
SC140 DSP Core Reference Manual
MACSU
1.100
$C000
x 0.000 0000 0000 0001$0001 (2
–15
)
1.111 1111 1111 1111 1000
$FFFF 8000
Instruction Formats and Opcodes
Note:
** indicates serial grouping encoding.
Instruction Fields
Dc,Dd
ee
Data Register Pairs
Dn
FFF
Single Source/Destination Data Register
Instruction
Words Cycles Type
Opcode
15
8
7
0
MACSU Dc,Dd,Dn
1
1
1
0
*
1
0
0
0
F
F
F
1
1
1
0
0
e
e
00
D0,D1
01
D2,D3
10
D4,D5
11
D6,D7
Note:
This instruction can specify D8-D15 as operands by using a prefix.
000
D0
010
D2
100
D4
110
D6
001
D1
011
D3
101
D5
111
D7
Note:
This instruction can specify D8-D15 as operands by using a prefix.
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