Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!mephisto!udel!princeton!phoenix!kadickey
From: kadickey@phoenix.Princeton.EDU (Kent Andrew Dickey)
Newsgroups: comp.sys.apple
Subject: HyperC //gs patch
Message-ID: <13758@phoenix.Princeton.EDU>
Date: 10 Feb 90 06:50:28 GMT
Organization: Princeton University, NJ
Lines: 34

I recently (8 hours ago?) posted to comp.binaries.apple2 a little
program I whipped up...

Finally:  //gs users can use HyperC ProDOS!

How to use it: Get the patch (Incredibly small...I wrote it in the
monitor [literally: 2100:A9 00 type stuff]), and unBinscii it.  Place
the resulting file (GS.SYSTEM) on the /CSYS disk (there should be one
block free--and guess what? GS.SYSTEM is one block long!).  Now, just
select GS.SYSTEM to start up HyperC instead of C.SYSTEM.

More neato features: My code tries to be smart to allow interrupts to
behave as normal (unlike the old patch for the CDOS version of HyperC).
My code seems to work ok, and I could get to the control panel regularly from
the prompt--but if I tried it in the middle of an 'ls', sometimes it
would hang when the 'ls' tried to return...I don't know what caused this.

Question: Does the //gs always enable the ROM when an interrupt occur?
If so, how is one supposed to return to a routine on the language card
that was interrupted?

Coming soon: A nibble copier.

Another Comment:  Why doesn't 'cd ..' work?  And is there an equivalent
for 'ls -l'?  If not, does anyone have source code for these routines?

I only played with it for about 10 minutes, to see if my patch worked.
My code is gross looking, so don't bother disassembling it--please
don't....I'm embarrassed by it :-).

Let me know if you have any problems....

			Kent Dickey
kadickey@phoenix.Princeton.EDU