Texas Instruments TMS320C67X/C67X+ DSP - 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