[comp.sys.mac] IIci incompatibilities?

rrw@naucse.UUCP (Robert Wier) (12/13/89)

 I'm not sure that this should have gone to .programmers or
 .hardware, but here goes.

 What with the discussion of some incompatibilities of the IIci
 with (especially older) programs, can someone detail exactly
 what it is that is different with the ci?  Would it be hardware
 (interrupt vectors, etc?) or software (requires being truly 32
 bit clean?).  

 Just curious....

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  - Bob Wier                             Northern Arizona University
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Fabian@cup.portal.com (Fabian Fabe Ramirez) (12/14/89)

Bob,

You guess it...applications MUST be "32-Bit Clean".  Remember that the Mac 
IIci has 32-Bit QuickDraw in ROM.

Fabian Ramirez
SuperMac Technology

fabian@cup.portal.com
sun!cup.portal.com!fabian

msmiller@gonzoville.East.Sun.COM (Mark S. Miller) (12/15/89)

In article <24977@cup.portal.com> Fabian@cup.portal.com (Fabian Fabe Ramirez) writes:
 >Bob,
 >
 >You guess it...applications MUST be "32-Bit Clean".  Remember that the Mac 
 >IIci has 32-Bit QuickDraw in ROM.
 >
 >Fabian Ramirez
 >SuperMac Technology
 >
 >fabian@cup.portal.com
 >sun!cup.portal.com!fabian

Some applications have a switch in them for "Use QuickDraw for
On-Screen Drawing" which will allow them to run with 32-bit QD when
they normally couldn't. I know this has worked for me and my IIcx with
both SuperPaint and AirWarrior. Check around the Preferences dialogs
for something like this in an application which dies.

    -MSM
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