Groups > comp.os.linux.development.system > #136

Re: read/write 128-bit register

From	new <luvraghu@gmail.com>
Newsgroups	comp.os.linux.development.system
Subject	Re: read/write 128-bit register
Date	2011-05-18 22:09 -0700
Organization	http://groups.google.com
Message-ID	<61ff0016-2607-430b-be21-04697f3864ce@x38g2000pri.googlegroups.com> (permalink)
References	<e9f7afa7-1d2b-4efc-bb6e-7b5f0d7ae383@k3g2000prl.googlegroups.com> <2c682ea8-069a-4592-830b-4e7a8f4d16c7@j13g2000pro.googlegroups.com>

Show all headers | View raw

Thanks for the reply.
I'm writing a chain descriptor-based dma pci-e driver for fpga, i have
a 20 byte descriptor so how do i read the descriptor values?
any reference codes available?

Thanks

On May 18, 11:54 pm, David Schwartz <dav...@webmaster.com> wrote:
> On May 17, 6:32 am, new <luvra...@gmail.com> wrote:
>
> > Hello experts,
> > How to read or write a 128-bit register in linux. I think readq()
> > writeq() is used for 64-bit regs. Is there any call for 128-bit too?
>
> > Please help.
>
> > Thanks.
>
> What is a "128-bit register"? Are you talking about SSE registers?
>
> DS

Back to comp.os.linux.development.system | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

read/write 128-bit register new <luvraghu@gmail.com> - 2011-05-17 06:32 -0700
  Re: read/write 128-bit register Tim Roberts <timr@probo.com> - 2011-05-18 01:34 -0700
  Re: read/write 128-bit register David Schwartz <davids@webmaster.com> - 2011-05-18 11:54 -0700
    Re: read/write 128-bit register new <luvraghu@gmail.com> - 2011-05-18 22:09 -0700
      Re: read/write 128-bit register Tim Roberts <timr@probo.com> - 2011-05-19 21:48 -0700

csiph-web