02645: sbrkout: Super Breakout paddle not reaching left hand side

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
02645	Gameplay	Minor	Always	Nov 13, 2008, 00:16	Aug 2, 2009, 22:29

Tester	grant	View Status	Public	Platform	MAME (Official Binary)
Assigned To	hap	Resolution	Fixed	OS
Status [?]	Resolved			Driver	atari/sbrkout.cpp
Version	0.123	Fixed in Version	0.133u1	Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	02645: sbrkout: Super Breakout paddle not reaching left hand side
Description	The values for the paddle (in service mode) only go from 00 to DF. Older versions (and my original arcade PCB) correctly go from 00 to FF. As a result, the paddle cannot reach the left hand side of the playfield (there is a gap appriximately half the width of the paddle). This worked correctly with version 0.122.
Steps To Reproduce	Start game normally. Try to move paddle all the way to the left hand side of the screen.
Additional Information
Github Commit

Flags	Verified with Original
Regression Version	0.122u3
Affected Sets / Systems	sbrkout

Attached Files

No.03039 Tafoid Administrator Nov 13, 2008, 02:43	Thank you for your report. In the future, please make sure you report with the latest version of MAME (right now, base is 0.128). It's possible that bugs like this are fixed in later versions and 5+ versions is a long time. Nevertheless, I confirmed on the latest build 0.128u3 and have identified the regression version where your paddle doesn't reach all the way left.
No.03042 grant Tester Nov 13, 2008, 08:12	Hi Tafoid. Appologies for not making myself clear. I found this problem with the latest release version (0.128) so, to try to help, I went back versions until I found the release where this problem started. The problem first appeared with release 0.123, so that's the version I noted here.
No.03187 Luigi30 Tester Nov 30, 2008, 20:04 edited on: Nov 30, 2008, 20:04	The driver was completely rewritten in 122u3. Previously, it wrote the paddle data to $1F, but now it uses a more accurate method involving rising voltages and the potentiometer. It's not implemented correctly and as a result the paddle can never be more than DF.
No.04748 hap Developer Aug 1, 2009, 20:07	fix submitted