Dilwyn Jones wrote: >>> Does it contain this feature (background drawing), too? >> Yes, it does. Can't say whether it fully works, however, I normally use >> SMSQ/E instead of the plain QL stuff. > Remember, though, that this version doesn't work across all QL ROM > versions - Minerva being required to make full use of all facilities and > absolute minimum JS ROM to work at all - it doesn't work properly on AH, JM > etc.
Ah, you remember that better than me! :-) The reason is that while previous PEs were completely separate from SMSQ/E's PE, my latest release shares 95% of the code. SMSQ/E's code relies on the sd_linel variable in the CON channel definition block, which is only defined from JS onwards. Unfortunately the space where it's located at is used differently on JM+AH, so it's impossible to use the same code there. To the reason why only Minerva got background updating I can only speculate, it was too long ago, but I guess that the QDOS CON driver probably does not use the sd_scrb variable consequently enough (back then it was never anything other than $20000 anyway), which is also necessary for background updating. Marcel _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
