Difference between revisions of "OSWORD &28"

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[[Category:OSWORD]]
 
[[Category:OSWORD]]
OSWORD &28 (40 ) -  
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&28 40 Read PRISMA information table Prisma
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On exit:
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XY?0..1 = PRISMA-3 I/O base address (default is &FCB0)
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XY?2    = PRISMA-3 ROM version number
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XY?3    = PRISMA-3 hardware revision level
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XY?4    = PRISMA-3 private workspace base page
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XY?5    = Sideways ROM number
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XY?6    = PRISMA-3 current number of buffer pages
  
  to } Allocated to Millipede Prisma 2 Graphics Processor
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==PRISMA calls==
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* [[OSWORD &28]] Read PRISMA information table
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* [[OSWORD &29]] Read PRISMA pixel value
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* [[OSWORD &2A]] Read PRISMA logical screen size
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* [[OSWORD &2B]] Read PRISMA colour palette
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* [[OSWORD &2C]] Send VDU sequence direct to PRISMA
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* [[OSWORD &2D]] Read last two PRISMA graphics cursors
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* [[OSWORD &2E]] Read PRISMA base screen visible origin
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* [[OSWORD &2F]] Read PRISMA graphics origin
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* [[OSWORD &30]] Read PRISMA interrupt status
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* [[OSWORD &31]] Direct call to PRISMA command
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* [[OSWORD &32]] Read position of PRISMA-3 roller screen
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* [[OSWORD &33]] Read/Write PRISMA overlay or nonvolatile memory
  
 
==See Also==
 
==See Also==
 
* http://mdfs.net/Docs/Comp/BBC/Oswords
 
* http://mdfs.net/Docs/Comp/BBC/Oswords
 
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[[User:Jgharston|Jgharston]] ([[User talk:Jgharston|talk]]) 19:50, 25 October 2015 (UTC)
[[User:Jgharston|Jgharston]] 13:32, 26 May 2009 (UTC)
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Latest revision as of 21:50, 25 October 2015

&28 40  Read PRISMA information table				Prisma
	On exit:
		XY?0..1 = PRISMA-3 I/O base address (default is &FCB0)
		XY?2    = PRISMA-3 ROM version number
		XY?3    = PRISMA-3 hardware revision level
		XY?4    = PRISMA-3 private workspace base page
		XY?5    = Sideways ROM number
		XY?6    = PRISMA-3 current number of buffer pages

PRISMA calls

See Also

Jgharston (talk) 19:50, 25 October 2015 (UTC)