DSP Core Reference Manual

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*1000FFF11100ee
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.