Viewing Issue Advanced Details
|ID||Category [?]||Severity [?]||Reproducibility||Date Submitted||Last Update|
|00448||Graphics||Minor||Have not tried||Jan 29, 2008, 16:24||Nov 4, 2018, 10:45|
|Version||0.95u6||Fixed in Version||Build|
|Summary||00448: pisces: Sometimes there is a square block on the bottom right in attract mode, or gameplay.|
Sometimes there is a square block on the bottom right in attract mode, or gameplay.
Update by Machone: This seems to be related to the main CPU speed. If you underclock or overclock the z80 processor by just 1%, the problem goes away. The current speed of the z80 in MAME is 3.072mhz, so perhaps this is wrong and should be set at 3mhz?
|Steps To Reproduce|
|Additional Information||Formerly driver galaxian.c (changed in 0.124u1)|
|Affected Sets / Systems||pisces|
v0.100.png (1,921 bytes) Apr 4, 2008, 09:14
v0.124u1.png (4,834 bytes) Apr 4, 2008, 09:24
savestate_0124u1.rar (8,691 bytes) Apr 4, 2008, 09:33
|There are no relationship linked to this issue.|
Apr 4, 2008, 07:54
|I've seen this squares on many games, just look on the recent bug in cp1 cps2 driver. Also this happens to me in vs. games as well, but not always.|
Apr 4, 2008, 09:24
edited on: Apr 4, 2008, 09:25
I think this is different from the case of cps1 and cps2 drivers.
I uploaded screenshots taken with 0.100 and 0.124u1.
Apr 4, 2008, 09:45
|mAybe this is more general bug.|
Nov 4, 2018, 10:45
edited on: Nov 4, 2018, 23:05
Tested on mame 0.203
More testing done. The bug can ocurred in two situations. Attract mode and gameplay.
- The bug appeared always in attract mode before mame 0.114
- The bug still appears randomly in gameplay
Fixed in attract mode between mame 0.113 and mame 0.114
In mame 0.203 the bug still ocurrs during gameplay, but it is quite rare to ocurr (5%)