Adding support for R6 of MIPS architecture

Steve Ellcey sellcey at
Wed Feb 11 23:42:51 UTC 2015

On Wed, 2015-02-11 at 13:51 +0100, Torbjörn Granlund wrote:

> I think mpn/alpha/addmul_1.asm might serve as a better starting point
> than the mips64 lo/hi code.  That code is simple enough, yet OK for
> pipelined in-order and out-of-order cores.

I will take a look at that.

>   The top-of-tree Qemu is pretty good these days, I use it for GCC
>   testing, including R6 testing.
> Have you been able to boot some kernel under QEMU in r6 mode?  Or are
> you using user-level QEMU, passing options to QEMU with some trickery?

I just use user-level QEMU.

Steve Ellcey
sellcey at

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