Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
02143 Graphics Minor Always Aug 22, 2008, 02:28 Aug 24, 2008, 04:07
Tester Robbbert View Status Public Platform MAME (Self-compiled)
Assigned To Resolution Fixed OS
Status [?] Resolved Driver
Version 0.127 Fixed in Version 0.127u1 Build Normal
Fixed in Git Commit Github Pull Request #
Summary 02143: ozmawars, ozmawars2, solfight, spaceph: Streaks and dashes appear on screen after playing awhile
Description Streaks and dashes appear on screen after playing awhile.
When the small rolling balls appear, so do lots of dashes and
other corruptions. Didn't happen in 0.126

Also noticed get 2 credits when should only get 1.
This one is probably too trivial to worry about.

Tafoid: Created new bug for this.
Steps To Reproduce Play game until small balls appear
Additional Information
Github Commit
Flags
Regression Version 0.127
Affected Sets / Systems ozmawars, ozmawars2, solfight, spaceph
Attached Files
png file icon ozmawars.png (1,653 bytes) Aug 22, 2008, 02:28
Relationships
There are no relationship linked to this issue.
Notes
3
User avatar
No.02164
etabeta
Developer
Aug 22, 2008, 07:16
The fix I submitted for 02144 seems to fix this issue as well, but I'm not good at these games and I'd like to have a confirmation before marking the bug as solved.

The proposed fix consists of simply adding in INPUT_PORTS_START( ozmawars ) (src/mame/drivers/8080bw.c line 1170) the following lines

	PORT_MODIFY("IN2")
	PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )

after the PORT_INCLUDE line
User avatar
No.02170
Robbbert
Senior Tester
Aug 22, 2008, 11:14
Tested ozmawars, it now works fine. Good fix!
User avatar
No.02196
etabeta
Developer
Aug 24, 2008, 04:07
It was not the right fix, however. Further tests showed that the real fix to these and other unreported regressions in invaders clones since 0.126u5/0.127 [1] consists in changing the "DSW0" tag to "IN2", so that invaders_map works as expected. The fix has been submitted to MAMEdev, so I'm going to close this bug.


[1] e.g. since 0.127 spaceatt, spaceat2 and sinvzan don't start because tilted (thanks LastNinja2 for pointing this out), since 0.126u5 dips were not correctly read by space invaders clones etc...