Freescale Semiconductor StarCore SC140 - Manual (Page 474)

A-160 SC140 DSP Core Reference Manual
DOENSHn
Instruction Formats and Opcodes
Instruction Fields
n Loop Identifier
DR HHHH Data/Address Register
SR $00E4 0000 $A0E4 0000
Instruction Words Cycles Type Opcode
15 8 7 0
DOENSHn #u6 1 1 4 1 0 0 1 0 1 n n 0 1 i i i i i i
15 8 7 0
DOENSHn #u16 2 1 4 0 0 1 0 0 1 n n i i i 0 0 1 0 0
1 0 0 i i i i i i i i i i i i i
15 8 7 0
DOENSHn DR 1 1 4 1 0 0 1 1 1 n n 0 1 0 0 H H H H
00 Loop 0 01 Loop 1 10 Loop 2 11 Loop 3
0000 D0 0100 D4 1000 R0 1100 R4
0001 D1 0101 D5 1001 R1 1101 R5
0010 D2 0110 D6 1010 R2 1110 R6
0011 D3 0111 D7 1011 R3 1111 R7
Note: This instruction can specify D8-D15 or R8-R15 as operands by using a high register prefix.
#u6 iiiiii 6-bit unsigned immediate data
#u16 iiiiiiiiiiiiiiii 16-bit unsigned immediate data
Register/Memory Address Before After