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Rockboy plugin

This plugin is a port of gnuboy to the iriver in order to play gameboy games. 2/3/05 version runs at near fullspeed, in native 2 bit grayscale.

• Grayscale and Sound build
• Keybindings
• Pictures
• Status
• Open bugs.

Grayscale and Sound build

this link should contain a fairly recent iriver build of rockboy with grayscale and sound. Probably outdated now that the greyscale lib has been rewritten and committed to cvs.

Keybindings

Key	Function	Comment
Play	A button	This is the only button that may be used simultaneously to another
Stop	B button
Select (click joystick)	Select
Record	Start
A-B	Rockboy menu	Exit/Savestate/Reset
Hold	Toggle LCD mode	cycle on and off to change between line dropping modes

Pictures

Pictures Old Pictures

Status

Todo	Status	Description
More lcd modes	Done	drop top 16 / drop bottom 16 / drop top 8 bottom 8 / drop a line every 9 lines
Menu	Done	needs more options
Sound support	Done	Done. still choppy because rockboy is not at full speed. but the driver should work fine. (thanks to XShocK) only works on iriver (duh) Currently disabled to improve performance.
Grayscale support for iriver	Done	Done. Color can probably be added for h3xx models later.
Savestates	90%	slightly buggy
Dynamic recompilation cpu core	10%	Framework exists, needs more opcodes implemented
New interpreter cpu core written in assembly	0%	Not started, eventually to be merged with dynarec
Fixing the sprite palette	0%	see open bugs
More / better button handling	0%	Button hold, buttons for simultaneous button presses

Open bugs.

Bug	Description
sprite palette	Sprites are not using the correct palette; caused by gnuboy not supporting a gb mode but only gbc mode, look at BGP / OBP0 / OBP1 and *_scan() functions, this causes some sprites to be displayed wrongly, like the guy in the house at the start of zelda: link's awakening

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Revision r1.17 - 09 Jul 2005 - 04:37 GMT - MarkHawthorne	Copyright © 1999-2005 by the contributing authors.