Addaw, Add using word addressing mode addaw – Texas Instruments TMS320C67X/C67X+ DSP User Manual
Page 114
ADDAW
Add Using Word Addressing Mode
3-54
Instruction Set
SPRU733
Add Using Word Addressing Mode
ADDAW
Syntax
ADDAW (.unit) src2, src1, dst
.unit = .D1 or .D2
Compatibility
C62x, C64x, C67x, and C67x+ CPU
Opcode
31
29
28
27
23
22
18
17
13
12
7
6
5
4
3
2
1
0
creg
z
dst
src2
src1
op
1 0 0 0 0 s p
3
1
5
5
5
6
1
1
Opcode map field used... For operand type...
Unit
Opfield
src2
src1
dst
sint
sint
sint
.D1, .D2
11 1000
src2
src1
dst
sint
ucst5
sint
.D1, .D2
11 1010
Description
src1 is added to src2 using the word addressing mode specified for src2. The
addition defaults to linear mode. However, if src2 is one of A4−A7 or B4−B7,
the mode can be changed to circular mode by writing the appropriate value to
the AMR (see section 2.7.3, page 2-10). src1 is left shifted by 2. The result is
placed in dst.
Execution
if (cond)
src2 +a src1
→
dst
else nop
Pipeline
stage
E1
Read
src1, src2
Written
dst
Unit in use
.D
Instruction Type
Single-cycle
Delay Slots
0
See Also
ADD, ADDAB, ADDAD, ADDAH
Pipeline