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Groups > comp.sys.apple2.programmer > #4156
| Newsgroups | comp.sys.apple2.programmer |
|---|---|
| Date | 2018-01-30 17:05 -0800 |
| References | <c9526b75-256b-47ff-b462-1f2afd3e2e7b@googlegroups.com> <6382c63c-f8c5-4f81-8fd2-dd369879fc25@googlegroups.com> <6f817d87-c479-4850-946f-a73ab471666b@googlegroups.com> <83413fc1-658c-4b63-b461-c3ba0dc8311a@googlegroups.com> |
| Message-ID | <55745a9f-9043-422a-a689-e970cf8bf89a@googlegroups.com> (permalink) |
| Subject | Re: ProRWTS usage |
| From | gids.rs@sasktel.net |
On Tuesday, January 30, 2018 at 5:04:26 PM UTC-6, qkumba wrote: > > page 1 main and aux load fine > > The loads to $800 end up in main both times. > The sta to $c054 or $c055 doesn't work to load into page 2. > It does, however, work for page 1. The reads to $400 work as expected. > > That's why it's missing frames. > ProRWTS can help, since it keeps the file offset in the zpage. > However, there's a complication if you're running it from main memory, which is that at every 64kb boundary, you'd have to duplicate the 512 bytes tree buffer into aux memory so that it can be read when you switch banks. > If you're running entirely from LC, then there's no problem at all (other than ProDOS is gone, of course, so you can't exit). I haven't had the time to delve into Prodos yet, but what is keeping Prodos from writing to Aux using the $C005 instead of $C055 as in? STA $C005 JSR $BF00 HEX CA DW READPARM Both the tree buffer and the global page are still available to Prodos in main memory.
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ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-25 14:51 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-25 23:05 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-26 08:28 -0800
Re: ProRWTS usage gids.rs@sasktel.net - 2018-01-26 09:54 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-26 10:51 -0800
Re: ProRWTS usage gids.rs@sasktel.net - 2018-01-26 12:07 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-28 15:52 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-30 08:00 -0800
Re: ProRWTS usage gids.rs@sasktel.net - 2018-01-30 19:19 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-26 17:43 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-28 08:48 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-28 15:49 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-30 08:05 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-30 08:11 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-30 15:04 -0800
Re: ProRWTS usage gids.rs@sasktel.net - 2018-01-30 17:05 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-30 17:10 -0800
Re: ProRWTS usage gids.rs@sasktel.net - 2018-01-30 18:06 -0800
Re: ProRWTS usage "Frank M." <frank_o_rama@hotmail.com> - 2018-01-30 18:48 -0800
Re: ProRWTS usage qkumba <peter.ferrie@gmail.com> - 2018-01-30 19:08 -0800
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