Konstantinos Margaritis wrote: > On Wed, 04 Jun 2014 06:45:54 +0900 > Hiroyuki Yamamoto <yama1...@gmail.com> wrote: > >> Hi, >> >> VMX128 doesn't seem compatible with VMX on OPcode level as follows: >> >> http://biallas.net/doc/vmx128/vmx128.txt >> https://sourceware.org/ml/binutils/2007-03/msg00075.html > > Hi, > > Thanks for the reply, I've been reading the info in those links myself, > from what I understand the VMX128 opcodes are an extention, that is, > they are added on top of the existing VMX opcodes, isn't that correct? > If not, then you're right and I will go forth and fix the data on the > tables. Also, I noticed something else, those opcodes, while on 2007 > binutils, are not in the current version of binutils-and I guess that > there are no respective intrinsics in gcc for that matter. Anyone by > any chance knows why? If VMX128 is a completely dead and obsolete SIMD > unit then perhaps I should not include it, it has been very hard > finding documentation on it as it, the only things I could find were > these: > > http://download.microsoft.com/download/2/2/0/2208E622-4365-4C00-A6E7-9C3A0190EAAA/Case_Studies_in_VMX128_Optimization_US.zip > > and > > http://download.microsoft.com/download/e/3/7/e3791b88-c41d-4a49-a24c-e4ccfbca4843/Using%20VMX%20and%20SSE%20Instructions%20for%20Performance.zip > > However, these include some -probably informative- docs on > xds.xbox.com, which does not exist anymore. So the links you mentioned > and the above are the only info I could find on vmx128. > > Anyway, thanks a lot for your time. >
Although I don't check that there is overlap on current opcode yet, VMX128 instructions use extra 2 bits for distinguishing 128 registers. Best regards, -- Hiroyuki Yamamoto A75D B285 7050 4BF9 AEDA 91AC 3A10 59C6 5203 04DC -- To UNSUBSCRIBE, email to debian-powerpc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/538e4b46.1070...@gmail.com
