Red Button/Input Problem (CD32)

bagpipes · 15 August 2010, 12:53

I have problem with Red Button/Input in CD32's compilations maded by rgcd. Others inputs works good.

Here's the site:
http://www.rgcd.co.uk/cd32/

For example Turrican Collection image:
http://www.rgcd.co.uk/cd32/turricancollectioncd32.iso

I know that this compilation (and others maded by rgcd) works good on real CD32.

Toni Wilen · 15 August 2010, 13:17

"Problem" is not very helpful..

bagpipes · 15 August 2010, 13:35

For example - in Turrican Collection when I press & hold blue or yellow buttons the games starts, but when I press & hold red button I see "choose menu" again and again ....Hmm - looks like red button "holding" don't work.

Toni Wilen · 15 August 2010, 16:10

Boot script uses exact same command to read initial red button before menu and after menu image loads.

Red button is also correctly returned in hardware and lowlevel.library read routine detects it correctly. (checked in debugger)

Must be some timing related thing or perhaps even timing issue in pad read utility..

Toni Wilen · 15 August 2010, 21:09

It was a bug after all, 3rd button line was not floating in CD32 pad 2-button mode.

This was originally quite confusing problem because of undocumented(?) lowlevel.library "feature":

Very first lowlevel.library/ReadJoyPort() reads CD32 pad as normal joystick (2-button mode, only dpad and red and blue can be detected), all following ReadJoyPort() calls read it as CD32 pad (all buttons are available)

In other words: only first read (Red button check) returns 2 buttons pressed (fire=red and 3rd button=yellow), following reads (Blue and Yellow checks) use full CD32 pad read mode which returns correct button state.

winuae.zip updated, please test that other games still work

bagpipes · 15 August 2010, 23:57

YEAH!!! Everything (RGCD compilations and official titles) works great! Thanks Toni!!!

15 August 2010, 12:53	#1
bagpipes Registered User Join Date: Feb 2009 Location: Poland Posts: 93	Red Button/Input Problem (CD32) I have problem with Red Button/Input in CD32's compilations maded by rgcd. Others inputs works good. Here's the site: http://www.rgcd.co.uk/cd32/ For example Turrican Collection image: http://www.rgcd.co.uk/cd32/turricancollectioncd32.iso I know that this compilation (and others maded by rgcd) works good on real CD32.

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15 August 2010, 13:17	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,553	"Problem" is not very helpful..

15 August 2010, 13:35	#3
bagpipes Registered User Join Date: Feb 2009 Location: Poland Posts: 93	For example - in Turrican Collection when I press & hold blue or yellow buttons the games starts, but when I press & hold red button I see "choose menu" again and again ....Hmm - looks like red button "holding" don't work.

15 August 2010, 16:10	#4
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,553	Boot script uses exact same command to read initial red button before menu and after menu image loads. Red button is also correctly returned in hardware and lowlevel.library read routine detects it correctly. (checked in debugger) Must be some timing related thing or perhaps even timing issue in pad read utility..

15 August 2010, 21:09	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,553	It was a bug after all, 3rd button line was not floating in CD32 pad 2-button mode. This was originally quite confusing problem because of undocumented(?) lowlevel.library "feature": Very first lowlevel.library/ReadJoyPort() reads CD32 pad as normal joystick (2-button mode, only dpad and red and blue can be detected), all following ReadJoyPort() calls read it as CD32 pad (all buttons are available) In other words: only first read (Red button check) returns 2 buttons pressed (fire=red and 3rd button=yellow), following reads (Blue and Yellow checks) use full CD32 pad read mode which returns correct button state. winuae.zip updated, please test that other games still work

15 August 2010, 23:57	#6
bagpipes Registered User Join Date: Feb 2009 Location: Poland Posts: 93	YEAH!!! Everything (RGCD compilations and official titles) works great! Thanks Toni!!!

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