Re: Ctrl-C Interrupt?

Date	2023-12-10 21:10 -0600
From	Hugh Hood <hughhood@earthlink.net>
Subject	Re: Ctrl-C Interrupt?
Newsgroups	comp.sys.apple2.programmer
References	<20231210194712.4301d589@smilodon-gracilis>
Message-ID	<8ROdnZS9bYMI4Ov4nZ2dnZfqnPednZ2d@earthlink.com> (permalink)

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On 12/10/2023 6:47 PM, Bill Chatfield wrote:
> Is there any way to have Ctrl-C interrupt a BIN program like it does
> a Basic program? I know Ctrl-Reset will do it, but that messes up
> the screen and probably other things too.
> 

Bill,

Are you able to patch the particular BIN program?

If so, I might suggest you inject a JMP somewhere in the program's main 
'run' loop to some new code you graft onto the end of the code.

The new code would save the registers, poll the keyboard, check for a 
CTRL-C, and just BRK if a CTRL-C is found. If not, just add whatever 
code you messed up by inserting the JMP to the new code, restore the 
registers, and then JMP back to where the program was interrupted.

Or, if the program already is polling the keyboard for some input, can 
you just re-purpose a key you don't normally need to do the same, or 
maybe JMP to a routine to add the check for CTRL-C?

Just some thoughts. Maybe none of them are appealing.

I'm assuming you're not using a IIgs where you can interrupt and Visit 
the Monitor.

Hugh Hood

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Thread

Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-10 19:47 -0500
  Re: Ctrl-C Interrupt? fadden <fadden@fadden.com> - 2023-12-10 17:54 -0800
    Re: Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-11 10:07 -0500
  Re: Ctrl-C Interrupt? Hugh Hood <hughhood@earthlink.net> - 2023-12-10 21:10 -0600
    Re: Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-11 10:09 -0500
      Re: Ctrl-C Interrupt? Oliver Schmidt <ol.sc@web.de> - 2023-12-11 19:10 +0000
        Re: Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-11 15:39 -0500
          Re: Ctrl-C Interrupt? Oliver Schmidt <ol.sc@web.de> - 2023-12-12 20:36 +0000
            Re: Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-12 23:55 -0500
  Re: Ctrl-C Interrupt? I am Rob <gids.rs@sasktel.net> - 2023-12-10 20:30 -0800
    Re: Ctrl-C Interrupt? Bill Chatfield <bill_chatfield@yahoo.com> - 2023-12-11 10:11 -0500

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