Re: A86: Re: sqrtKEY

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: Re: sqrtKEY
From: "David Phillips" <david@acz.org>
Date: Wed, 10 Nov 1999 14:03:42 -0700
References: <19991110.113457.-4079693.2.rabidcow@juno.com>
Reply-To: assembly-86@lists.ticalc.org


> that's the sort of thing you'd probly never discover if you were using an
> emulator, cuz you'd just reset it as soon as you noticed it was doing
> something funny.  or at least i would.

Yes, exactly.  Very interesting, though.

> combined program, 15 bytes:
> 3E 01 21 EE C3 AE 77
> 3E 40 21 FD C3 AE 77 C9
> just program menus, 8 bytes:
> 3E 01 21 EE C3 AE 77 C9

Oops, I did screw it up.  For just menus, should be as shown:

21 FD C3 3E 40 AE 77 C9

I don't know what I was thinking when I got $18.  $40 is the correct value.
 
> wait a minute, the one you just gave to hide menus,
> 21 FD C3 3E 
> *18* AE 77 C9 
> changes 2 flags, bits 3 and 4 at (iy+$18).  what are those?
> the combined one here changes 6,(iy+$18) aka textwrite,(iy+new_grf_flgs)
> was this an error or are these flags i don't know about?

References:

Re: A86: Re: sqrtKEY

From: Joshua J Seagoe <rabidcow@juno.com>