[VM] Large integers mishandled

[Ludovic Courtès]

Hi,

Before I forget:

  scheme@(guile-user)> (expt 2 32)
  $3 = 4294967296
  scheme@(guile-user)> 4294967296
  ERROR: In procedure vm-debug-engine:
  ERROR: load-integer: not implemented yet
  scheme@(guile-user)> 4294967295
  $4 = -1

The error is acceptable, but the last one is a bug.  Perhaps there
should be a `load-unsigned-integer' instruction?

Thanks,
Ludo'.