🚀 go-pugleaf

Dave Sparks  wrote:
> >>>>> "DB" == Dave Beames <dave@beames.demon.co.uk> writes:
>
>   DB> I've just started trying to un-cripple a small text editor

>   DB> I'm still on WB3.0, and I don't have the expensive books, so I don't
>   DB> know what's in what library.  I know the ordinary clock-read function
>   DB> is (or was) in dos.library, but he doesn't seem to open that.  ...
>
> He probably uses the timer device, which counts either vertical
> blanking intervals or the 8520 timer.	 VBLANK would be the more
> sensible choice, except that the time interval would then be
> affected if you use a graphics card.

I *do* use CyberVision.	 But the ordinary video port is still operable,
bypassing the CV -- won't the "old" blanking still be available?

> Look for 'timerequest' and 'TR_ADDREQUEST'.  The timer event would
> be requested by a 'DoIO'.  Commenting out the 'DoIO' call would then be
> enough to disable the timer.
>
> Does the code have any comments in it?

Er ... all I have is the binary, disassembled.

That's why I asked about offsets, so that I could look for lines like
   JSR	-<offset>(An)
I know where he puts the pointers to all the libraries that he opens, so I
can tell which library he's looking at with each JSR, so if I knew the
actual offset value for (eg) the "what's the time" routine, I could easily
find where he called it from.  Except that he doesn't open dos.library, as
I said.

But you seem to be suggesting that he's not using library routines at all.
What would the sort of thing that you are suggesting look like in
assembler?  Or isn't that a meaningful question :-(

Thanks for taking an interest. You may regret it :-)

DaveB