Addab, Add using byte addressing mode addab – Texas Instruments TMS320C67X/C67X+ DSP User Manual
Page 108
ADDAB
Add Using Byte Addressing Mode
3-48
Instruction Set
SPRU733
Add Using Byte Addressing Mode
ADDAB
Syntax
ADDAB (.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 0000
src2
src1
dst
sint
ucst5
sint
.D1, .D2
11 0010
Description
src1 is added to src2 using the byte 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). 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, ADDAD, ADDAH, ADDAW
Pipeline