lkml.org 
[lkml]   [2018]   [Dec]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Fixing MIPS delay slot emulation weakness?
On Sat, Dec 15, 2018 at 09:26:45PM +0000, Paul Burton wrote:
> > The really nice but less compatible fix would be to let processes or
> > even the whole system opt out by promising not to put anything in FPU
> > branch delay slots, of course.
>
> The ultimate fix comes with a switch to the nanoMIPS ISA which has no
> delay slots :)

I don't understand the MIPS position that introducing new ISAs
(including silently-new like r6) and not supporting or deprecating
support for the old one is a solution to anything. If one doesn't care
about the ability to run existing binaries for your platform, one
might as well switch to RISC-V or ARM or whatever. The whole advantage
of an ISA as a "platform" is the ability to run existing software and
use existing tooling (not just compilers; think also JITs, FFI
frameworks, etc), not any particular design advantage the ISA has.

Rich

\
 
 \ /
  Last update: 2018-12-16 19:12    [W:0.107 / U:0.604 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site