Mullhw - IBM PPC440X5 CPU Core User Manual

Preliminary

mullhw

Multiply High Halfword to Word Signed
mullhw RT, RA, RB
mullhw. RT, RA, RB
4
0 6
(RT) (RA)
0 31
: 16:31
The low-order halfword of RA is multiplied by the low-order halfword of RB, considering both source operands
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.
instrset.fm.
September 12, 2002
RT RA
11
(RB) signed
16:31
Multiply Low Halfword to Word Signed
PPC440x5 CPU Core User's Manual
Rc=0
Rc=1
RB
16 21
mullhw
424 Rc
31
Page 379 of 589