Re: [PATCH] Fixup for Amigas with memory at 0x200000

[Ilpo Ruotsalainen <lonewolf%iki.fi@localhost>]

On Wed Jan 08 2003 at 21:27:20 +0100, Aymeric Vincent wrote:
> +LMMUenable_start:
> +
> +/* enable the MMU */
> +#if defined(M68040) || defined(M68060)
> +     RELOC(mmutype, %a0)
> +     cmpl    #MMU_68040,%a0@
> +     jne     Lenable030
> +     pflusha
> +     movl    #0xc000,%d0
> +     .word   0x4e7b, 0x0003          | movec %d0,%tc
> +     jmp     Lunshadow:l
> +#endif /* M68040 || M68060 */
> +/* ENABLE, SRP_ENABLE, 8K pages, 8bit A-level, 11bit B-level */
> +Ltc: .long   0x82d08b00
> +Lenable030:
> +     lea     Ltc,%a0
> +     pmove   %a0@,%tc
>       jmp     Lunshadow:l
>  
> +LMMUenable_end:

Btw isn't there a bug here if neither M68040 or M68060 is defined?

If either is defined, what you execute (on a '030) is

RELOC(mmutype, %a0)
cmpl #MMU_68040,%a0@
jne  Lenable030
lea  Ltc,%a0
...

If neither is defined, what you execute is

.long 0x82d08b00
lea  Ltc,%a0
...

Which seems wrong to me.

-- 
Ilpo Ruotsalainen - <lonewolf%iki.fi@localhost> - http://www.iki.fi/lonewolf/