Clip Window ULA/LoRes Register - Revision history

Ped7g: core 3.0 changes/refresh

2019-11-11T13:32:09Z

core 3.0 changes/refresh

← Older revision		Revision as of 14:32, 11 November 2019
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	The displayed area is "inclusive", i.e. for default values full 256x192 pixel area is displayed.		The displayed area is "inclusive", i.e. for default values full 256x192 pixel area is displayed.

			LoRes may get a separate clip window in the future.

Specnext: 3 revisions imported

2019-04-14T09:59:51Z

3 revisions imported

← Older revision		Revision as of 10:59, 14 April 2019
(No difference)

wiki>Ped7g: Fixing read/write vs index auto increment description, thanks to Garry help on Facebook to identify the mistake

2019-01-06T23:16:03Z

Fixing read/write vs index auto increment description, thanks to Garry help on Facebook to identify the mistake

← Older revision		Revision as of 00:16, 7 January 2019
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	\|ShortDesc=Sets and reads clip-window for ULA/LoRes layer.		\|ShortDesc=Sets and reads clip-window for ULA/LoRes layer.
	}}		}}
	~~# read/write~~: X1 position		The coordinates are stored under index:
	~~# read/write:~~ X2 position		{\| class="wikitable"
	~~# read/write:~~ Y1 position		\|-
	~~# read/write:~~ Y2 position		! Index !! Coordinate
			\|-
			\| 0 \|\| X1 position
			\|-
			\| 1 \|\| X2 position
			\|-
			\| 2 \|\| Y1 position
			\|-
			\| 3 \|\| Y2 position
			\|}

	The ~~values are 0,255,0,191 after a Reset~~.		The current read/write index (which coordinate is selected) can be read or reset by {{NextRegNo\|$1C}}.

	~~The current read/write~~ index (~~which~~ coordinate is next) ~~can be read or reset by {{NextRegNo\|$1C}}~~.		Write to register will modify currently selected coordinate, and auto-increment index (wrapping from 3 to 0).

			Read from register will only read currently selected coordinate, index is not modified (to read next coordinate, write the current coordinate value back, to increment index).

			The coordinate values are 0,255,0,191 after a Reset.

			The displayed area is "inclusive", i.e. for default values full 256x192 pixel area is displayed.

wiki>Ped7g: further details from Jim in forum post

2018-12-23T12:54:46Z

further details from Jim in forum post

← Older revision		Revision as of 13:54, 23 December 2018
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	# read/write: Y1 position		# read/write: Y1 position
	# read/write: Y2 position		# read/write: Y2 position

			The values are 0,255,0,191 after a Reset.

			The current read/write index (which coordinate is next) can be read or reset by {{NextRegNo\|$1C}}.

wiki>Ped7g: added info + Core 2.00.22 changes (readable now)

2018-12-22T18:55:02Z

added info + Core 2.00.22 changes (readable now)

New page

{{NextRegister
|Number=$1A
|Readable=Yes
|Writable=Yes
|ShortDesc=Sets and reads clip-window for ULA/LoRes layer.
}}
# read/write: X1 position
# read/write: X2 position
# read/write: Y1 position
# read/write: Y2 position