Texas Instruments TMS320C67X/C67X+ DSP - Manual (Page 109)

Add Using Byte Addressing Mode ADDAB
3-49 Instruction Set SPRU733
Example 1 ADDAB .D1 A4,A2,A4
Before instruction 1 cycle after instruction
A2 0000 000Bh A2 0000 000Bh
A4 0000 0100h A4 0000 0103h
AMR 0002 0001h AMR 0002 0001h
BK0 = 2 → size = 8
A4 in circular addressing mode using BK0
Example 2 ADDAB .D1X B14,42h,A4
Before instruction 1 cycle after instruction
B14 0020 1000h A4 0020 1042h
Example 3 ADDAB .D2 B14,7FFFh,B4
Before instruction 1 cycle after instruction
B14 0010 0000h B4 0010 7FFFh