IBM PPC440X5 Manual do Utilizador descarregar pdf (Página 375)

100

101

mulhhw

Multiply High Halfword to Word Signed

Preliminary PPC440x5 CPU Core User’s Manual

instrset.fm.

September 12, 2002 Page 375 of 589

mulhhw

Multiply High Halfword to Word Signed

(RT)

← (RA)

0:15

× (RB)

0:15

signed

The high-order halfword of RA is multiplied by the high-order halfword of RB, considering both source oper-

ands as signed integers. The 32-bit result is placed into register RT.

Registers Altered

•RT

• CR[CR0] if Rc contains 1

Architecture Note

This instruction is implementation-specific and programs which use this instruction may not be portable to

other PowerPC Book-E implementations. See Instruction Set Portability on page 250.

mulhhw RT, RA, RB Rc=0

mulhhw. RT, RA, RB Rc=1

4RTRARB 40Rc

0 6 11 16 21 31

1 2 ... 370 371 372 373 374 375 376 377 378 379 380 ... 589 590

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