lkml.org 
[lkml]   [1998]   [Jun]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: MMX emulator ?
On Mon, 15 Jun 1998, Sylvain Pion wrote:

>Hi,
>
>I wondered whether there has been some thoughts about implementing an MMX
>emulator in the kernel, something like the FPU emulator. It sounds like a

Intel say that it' s impossible. From 24319201.pdf section 10.1:

10.1. EMULATION OF THE MMX™ INSTRUCTION SET

The Intel Architecture does not support emulation of the MMX
technology, as it does for floating-point instructions. The EM
flag in control register CR0 (provided to invoke emulation of
floating-point instructions) cannot be used for MMX instruction
emulation. If an MMX instruction is executed when the EM flag is
set, an invalid opcode (UD#) exception is generated.

Andrea[s] Arcangeli


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu

\
 
 \ /
  Last update: 2005-03-22 13:43    [W:0.229 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site