DDOTP4H

Naim dahnoun

Is there any instruction that add the results of the DDOT4H? that is the upper 32-bit + the lower 32-bit of the long long results

Regards

Naim

0 one and zero over 11 years ago

Hi Naim,

can't you use the ADD command? DDOTP4H is using paired registers. So you have the 64 bit result in let's say A4 and A5.

You can add then use ADD A4,A5,A6

Or am I missing something here?

Kind regards,

one and zero

0 Naim dahnoun over 11 years ago in reply to one and zero

Many thanks.

I was thinking of additing two results res1 and res2 such as

res1 = A3:A2

res2=B3:B2

FRes1= A3 +B3 and FRes2= A2 + B2 in ONE cycle ! :)

Regards

Naim

0 one and zero over 11 years ago in reply to Naim dahnoun

OK, then how about DADD ?

Kind regards,

one and zero

Processors forum