M100/T102 Hardware scrolling patch - Revision history

Sadolph at 13:57, 12 March 2022

2022-03-12T13:57:16Z

← Older revision		Revision as of 06:57, 12 March 2022
Line 15:		Line 15:
	\|'''Version'''\|\|'''Note'''\|\|'''File'''		\|'''Version'''\|\|'''Note'''\|\|'''File'''
	\|-		\|-
	\|Version 2, March 2022\|\| patch ~~source~~, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]		\|Version 2, March 2022\|\| patch binary, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]
	\|-		\|-
	\|Version 2, March 2022\|\| Word document that describes the patch in detail \|\|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]		\|Version 2, March 2022\|\| Word document that describes the patch in detail \|\|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]

Sadolph at 13:56, 12 March 2022

2022-03-12T13:56:11Z

← Older revision		Revision as of 06:56, 12 March 2022
Line 20:		Line 20:
	\|-		\|-
	\|}		\|}


			= TIPS =

			Hardware scroll works when the LABEL line is DISABLED.
			This is important in TELCOM.
			Turn off LABEL line to see the benefit of hardware scrolling.

			Same tip for other situations where LABEL line is on.
			Like in BASIC or TEXT.
			Again, turn off for fast scrolling.

Sadolph at 12:39, 11 March 2022

2022-03-11T12:39:38Z

← Older revision		Revision as of 05:39, 11 March 2022
Line 1:		Line 1:
	March 2022		'''Updated March 2022'''

	The Model 100 and Tandy 102 (as well as KC-85, NEC and M10 machines) all have top and bottom LCD drivers that are capable of hardware scrolling. However the main ROM does not take advantage of that; it manually writes new screen data to every pixel to accomplish a scroll.		The Model 100 and Tandy 102 (as well as KC-85, NEC and M10 machines) all have top and bottom LCD drivers that are capable of hardware scrolling. However the main ROM does not take advantage of that; it manually writes new screen data to every pixel to accomplish a scroll.
Line 15:		Line 15:
	\|'''Version'''\|\|'''Note'''\|\|'''File'''		\|'''Version'''\|\|'''Note'''\|\|'''File'''
	\|-		\|-
	\|Version 2\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]		\|Version 2, March 2022\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]
	\|-		\|-
	\|Version 2\|\| Word document that describes the patch in detail \|\|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]		\|Version 2, March 2022\|\| Word document that describes the patch in detail \|\|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]
	\|-		\|-
	\|}		\|}

Sadolph at 12:39, 11 March 2022

2022-03-11T12:39:02Z

← Older revision		Revision as of 05:39, 11 March 2022
Line 1:		Line 1:
	~~== M100/T102 Hardware Scrolling patch ==~~
	March 2022		March 2022

Sadolph: /* M100/T102 Hardware Scrolling patch */

2022-03-11T12:38:12Z

M100/T102 Hardware Scrolling patch

← Older revision		Revision as of 05:38, 11 March 2022
Line 14:		Line 14:

	{\| class="wikitable"		{\| class="wikitable"
	\|'''~~T102 main rom with hardware scroll patch~~'''\|\|'''Note'''\|\|'''File'''		\|'''Version'''\|\|'''Note'''\|\|'''File'''
	\|-		\|-
	\|Version 2\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]		\|Version 2\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]

Sadolph: /* M100/T102 Hardware Scrolling patch */

2022-03-11T12:37:57Z

M100/T102 Hardware Scrolling patch

← Older revision		Revision as of 05:37, 11 March 2022
Line 18:		Line 18:
	\|Version 2\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]		\|Version 2\|\| patch source, incl. TS-DOS bug-fix - March 2022 \|\|[[Media:M102_hs.ZIP\|M102_hs.ZIP]]
	\|-		\|-
	\|Version 2\|\| Word document that describes the patch in detail \| \|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]		\|Version 2\|\| Word document that describes the patch in detail \|\|[[Media:hs_patch_doc.ZIP\|hs_patch_doc.ZIP]]
	\|-		\|-
	\|}		\|}

Sadolph: Created page with "== M100/T102 Hardware Scrolling patch == March 2022 The Model 100 and Tandy 102 (as well as KC-85, NEC and M10 machines) all have top and bottom LCD drivers that are capable ..."

2022-03-11T12:37:35Z

Created page with "== M100/T102 Hardware Scrolling patch == March 2022 The Model 100 and Tandy 102 (as well as KC-85, NEC and M10 machines) all have top and bottom LCD drivers that are capable ..."

New page

== M100/T102 Hardware Scrolling patch ==
March 2022

The Model 100 and Tandy 102 (as well as KC-85, NEC and M10 machines) all have top and bottom LCD drivers that are capable of hardware scrolling. However the main ROM does not take advantage of that; it manually writes new screen data to every pixel to accomplish a scroll.

A patch has been developed now that provides an implementation of hardware scrolling. It is not a major rewrite of the LCD routines, but it modifies how the existing routines work to speed up scrolling using the hardware scroll function.

The overall patch consists of a first patch that creates about 150 free bytes in the main ROM, and then the hardware scrolling patch is implemented on top of that.

Note. The so-called "base patch" is also used to enable NSC800 support.

A document that describes the patch is here.
The Tandy 102 main ROM with the 2 patches applied, is here.

{| class="wikitable"
|'''T102 main rom with hardware scroll patch'''||'''Note'''||'''File'''
|-
|Version 2|| patch source, incl. TS-DOS bug-fix - March 2022 ||[[Media:M102_hs.ZIP|M102_hs.ZIP]]
|-
|Version 2|| Word document that describes the patch in detail | |[[Media:hs_patch_doc.ZIP|hs_patch_doc.ZIP]]
|-
|}