Texas Instruments TMS320C67X - Page 208

MPYH Multiply Signed 16 MSB x Signed 16 MSB
3-148 Instruction Set SPRU733
Example MPYH .M1 A1,A2,A3
Before instruction 2 cycles after instruction
A1
0023 0000h
35
†
A1 0023 0000h
A2 FFA7 1234h −89
†
A2 FFA7 1234h
A3 xxxx xxxxh A3 FFFF F3D5h −3115
†
Signed 16-MSB integer