Texas Instruments TMS320C67X/C67X+ DSP - Manual (Page 312)

SUB Subtract Two Signed Integers Without Saturation
3-252 Instruction Set SPRU733
Instruction Type Single-cycle
Delay Slots 0
See Also ADD, SSUB, SUBC, SUBDP, SUBSP, SUBU, SUB2
Example SUB .L1 A1,A2,A3
Before instruction 1 cycle after instruction
A1 0000 325Ah 12810 A1 0000 325Ah
A2 FFFF FF12h −238 A2 FFFF FF12h
A3 xxxx xxxxh A3 0000 3348h 13128