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OSWORD &2A - Revision history
2024-03-29T10:38:10Z
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Jgharston: Created page with "Category:OSWORD &2A 42 Read PRISMA logical screen size Prisma On exit: XY?0..1 = maximum X coordinate (width-1) XY?2..3 = maximum Y corrdinate (height-1) Th..."
2015-10-25T19:52:16Z
<p>Created page with "<a href="/Category:OSWORD" title="Category:OSWORD">Category:OSWORD</a> &2A 42 Read PRISMA logical screen size Prisma On exit: XY?0..1 = maximum X coordinate (width-1) XY?2..3 = maximum Y corrdinate (height-1) Th..."</p>
<p><b>New page</b></p><div>[[Category:OSWORD]]<br />
&2A 42 Read PRISMA logical screen size Prisma<br />
On exit:<br />
XY?0..1 = maximum X coordinate (width-1)<br />
XY?2..3 = maximum Y corrdinate (height-1)<br />
The size of the logical screen will vary with the parameter set<br />
by the *WIDTH command.<br />
<br />
==PRISMA calls==<br />
* [[OSWORD &28]] Read PRISMA information table<br />
* [[OSWORD &29]] Read PRISMA pixel value<br />
* [[OSWORD &2A]] Read PRISMA logical screen size<br />
* [[OSWORD &2B]] Read PRISMA colour palette<br />
* [[OSWORD &2C]] Send VDU sequence direct to PRISMA<br />
* [[OSWORD &2D]] Read last two PRISMA graphics cursors<br />
* [[OSWORD &2E]] Read PRISMA base screen visible origin<br />
* [[OSWORD &2F]] Read PRISMA graphics origin<br />
* [[OSWORD &30]] Read PRISMA interrupt status<br />
* [[OSWORD &31]] Direct call to PRISMA command<br />
* [[OSWORD &32]] Read position of PRISMA-3 roller screen<br />
* [[OSWORD &33]] Read/Write PRISMA overlay or nonvolatile memory<br />
<br />
==See Also==<br />
* http://mdfs.net/Docs/Comp/BBC/Oswords<br />
[[User:Jgharston|Jgharston]] ([[User talk:Jgharston|talk]]) 19:52, 25 October 2015 (UTC)</div>
Jgharston