On 20 September 2015 at 13:54, Peter Coghlan <cct...@beyondthepale.ie> wrote: > BBC BASIC (when running on a BBC Micro at least) does clear (most) variables > when a program is loaded. Most variables are stored in memory above the > program and if a small program was replaced by a larger program, some could > get > overwritten. Acorn may have decided that it was too much trouble to figure > out > whether or which variables might be affected and that it was easier to be safe > by clearing them every time a program is loaded. > > BBC BASIC (on a BBC Micro) doesn't have a MERGE command or equivelant either > but it is possible to merge programs together using slight hackery. However, > once BASIC is made aware of the change, it will clear the variables so a > certain level of deviousness is required to do stuff like overlays.
Hmmm. I'm now wondering if the command was CHAIN not LOAD... -- Liam Proven • Profile: http://lproven.livejournal.com/profile Email: lpro...@cix.co.uk • GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lpro...@hotmail.com • Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) • +420 702 829 053 (ČR)
