Re: [microblaze-uclinux] rtid emulation

[alucero@xxxxxxxxx]

Sorry. I got it.

I was clobbering r11. This works;

// BIP=0 IE=0

 swi r11, r0, R11_SAVE
 mfs r11, rmsr
 ori r11, r11, 0xa
 mts r11, rmsr //  BIP=1 IE=1
 nop;
 lwi r11, r0, R11_SAVE
 rtbd r14, 0;
 nop;

On Friday 05 August 2005 12:12, alucero@os3sl.com wrote:
> Hi,
>
> I'm working in a virtual emulation for rtid instruction. At a fist step I
> have tried to use rtbd in this way:
>
> Instead of:
>
> // BIP=0 IE=0
> rtid r14, o
> nop;
>
>
> I do:
>
> // BIP=0 IE=0
>
> mfs r11, rmsr
> ori r11, r11, 0xa
> mts r11, rmsr //  BIP=1 IE=1
> nop;
> rtbd r14, 0;
> nop;
>
> After enabling interrupts at MSR at the same time that BIP, they are not
> really enabled. When rtbd is executed the PC will be address from r14 and
> the IE enabled with BIP=0.
>
> However this approach is not working, so as I can't see the problem I ask
> some help from an expert (john?) ;-)
>
> Thanks

-- 
Alejandro Lucero
OS3, OS Serveis i Solucions
www.os3sl.com
Ingeniería Informática
+34 665687168
Av.Benjamin Franklin
CEEI. Parque Tecnológico de Paterna
Valencia(Spain)

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