[comp.sys.mac.hypercard] Hypercard freezes after swap to 32-bit mode and back

frigo@cernvax.UUCP (frigo) (05/31/88)

We have written to XCMD's to swap to 32-bit mode and back. The code
works fine from MPW pascal. When the XCMD's are executed from within
Hypercard (that is, 32-bit addressing is entered, and immediately
after 24-bit addressing is restored) Hypercard freezes. We need the
32-bit mode to interface some electronics in conjunction with some
physics experiment.    Any hint?

   G. Vittorio Frigo, Data Handling Division, C.E.R.N., Geneva, CH
OM
-- 
                       G. Vittorio FRIGO,
                       C.E.R.N., CH - 1211 Geneva 23, Switzerland

dan@Apple.COM (Dan Allen) (06/02/88)

HyperCard has known problems with running in 32-bit mode.  HyperCard
will not currently run under A/UX, for example, which DOES run the Mac
II in 32 bit mode.  We are looking into fixing this, but as of release
1.2, HC simply will not work in 32-bit mode.  No promises as to when...

Sorry.

Dan Allen
Software Explorer
Apple Computer