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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
03897 Graphics Minor Always Jun 22, 2010, 17:55 Jun 22, 2017, 16:03
Tester hap View Status Public Platform MAME (Official Binary)
Assigned To Resolution Fixed OS
Status [?] Resolved Driver namcona1.cpp
Version 0.138u2 Fixed in Version Build Normal
Summary 03897: knckhead: Sprites jitter.
Description in-game sprites jitter, it's easily visible by playing the game or watching the demo
Steps To Reproduce
Additional Information
Regression Version 0.125u1
Affected Sets / Systems knckhead
Attached Files
png file icon knckhead0058.png (25,839 bytes) Jun 22, 2010, 18:05
There are no relationsihp linked to this issue.
User avatar
Jun 22, 2010, 18:20
Regression spied on 0.125u1. A number of items were worked on in the driver for that version:

Bug fixes for NamcoNA Hardware: [Phil Stroffolino]
 - support for scanline effect (fixes invisible dolphin in Emeralda
    attract mode)
 - ROZ implementation no longer breaks Numan Athletics pixmap layer
 - blitter fixes; xday graphics are now correct
 - identified extra communications RAM used by xday (probably to
    control printer)

Fixed the ROZ effect in Namco NA1 driver. ROZ tilemap is actually an
additional tilemap. Fixes a bug where a "roz enable" test was causing
a normal layer to be rendered with ROZ effects in-game. There is no
roz enable register - it's always available for mixing with other
tilemaps and sprites. This also adds a missing NAMCO logo zoom/spin
effect in Emeralda's attract mode. [Phil Stroffolino]
User avatar
Jun 22, 2017, 16:03
This issue has been fixed.