Re: [SeaBIOS] vgabios -> seabios breaks (my) 16-bit applications

2015-01-13 Thread Peter Stuge
Kevin O'Connor wrote: > I can think of a few options: 7 - use top of video memory as stack? //Peter ___ SeaBIOS mailing list SeaBIOS@seabios.org http://www.seabios.org/mailman/listinfo/seabios

Re: [SeaBIOS] vgabios -> seabios breaks (my) 16-bit applications

2015-01-13 Thread Paolo Bonzini
On 13/01/2015 13:26, Peter Stuge wrote: >> > I can think of a few options: > 7 - use top of video memory as stack? That would be pretty slow on KVM, since video memory is MMIO. But worse, one could imagine that NTVDM blocks a-b as well. Paolo __

Re: [SeaBIOS] vgabios -> seabios breaks (my) 16-bit applications

2015-01-13 Thread Peter Stuge
Paolo Bonzini wrote: > >> > I can think of a few options: > > 7 - use top of video memory as stack? > > That would be pretty slow on KVM, since video memory is MMIO. slow reliable > fast unreliable > But worse, one could imagine that NTVDM blocks a-b as well. I doubt that? Then how wou

Re: [SeaBIOS] vgabios -> seabios breaks (my) 16-bit applications

2015-01-13 Thread Paolo Bonzini
On 13/01/2015 15:30, Peter Stuge wrote: > > That would be pretty slow on KVM, since video memory is MMIO. > > slow reliable > fast unreliable > > > But worse, one could imagine that NTVDM blocks a-b as well. > > I doubt that? Then how would the VGA BIOS write its data? The question is