Hello world: GRUB 0.4 OK with ATI 3D-XPRESSION(mach64), fails with TRIO 64+ video

[joel at oarcorp.com (joel at oarcorp.com)]

On Mon, 28 Sep 1998, erik.ivanenko wrote:

> When using grub-0.4 on DELL Optiplex GM5100, with TRIO 64+ video, after
> selecting the test I get:
> 
> Booting 'Hello World test'
> 
> kernel=/hello.exe
> Loading:[format=NetBSD-a.out. loadaddr=0x100000, text=0x19750, C,
> data=0xfa4, bss=0x50e4, entry=0x100000]
> 
> and it stops dead ( the floppy access light is still on )
> 
> When using grub-0.5 on the TRIO 64+, the booting 'Hello World test'
> showed up amongst a very poorly refreshed monitor image. ( colored lines
> cycling up the screen. )

I don't know enough about the differences between the grub versions to
explain this.  I recall that some version had a nice fix in it.

> When using grub-0.4 on a NEC powerplayer, Pentium 200MMX with ATI
> 3D-XPRESSION(mach64)(direct draw):
>
> Hello world: works
> base_sp:         works
> ticker:             works
> paranoia         works and hangs ( I think perhaps I should wait longer
> for the test to complete?)

paranoia generates a floating point trap which is almost certainly not
handled by the BSP.  So you could end up waiting a long time. :)

> BTW: I think this shows the move of the pc386dev contents to the shared
> area was successful.