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Games are running faster than on real hardware.
 
Games are running faster than on real hardware.
  
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel6502.cpp fidel6502] ==
+
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel_as12.cpp fidel_as12] ==
''' feleg, fscc12 and clone ''' - They seem a little bit slower than the real machine. Currently, a dummy timer workaround is needed, or it's much worse.  Is the problem here is due to timing of CPU addressbus changes?
+
Seems a little bit slower than the real machine. Currently, a dummy timer workaround is needed, or it's much worse.  Is the problem here is due to timing of CPU addressbus changes?
  
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel68k.cpp fidel68k] ==
+
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel_eag68k.cpp fidel_eag68k] ==
 
''' feagv10 ''' - V9(68030 @ 32MHz) is faster than V10(68040 @ 25MHz) but it should be the other  way around, culprit is unemulated cache?
 
''' feagv10 ''' - V9(68030 @ 32MHz) is faster than V10(68040 @ 25MHz) but it should be the other  way around, culprit is unemulated cache?
  
 
''' feagv11 ''' - V11 CPU should be M68EC060, not yet emulated. Now using M68EC040 in its place  at twice the frequency due to lack of superscalar.
 
''' feagv11 ''' - V11 CPU should be M68EC060, not yet emulated. Now using M68EC040 in its place  at twice the frequency due to lack of superscalar.
 +
 +
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel_elite.cpp fidel_elite] ==
 +
 +
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/fidel_sc12.cpp fidel_sc12] ==
 +
Seems a little bit slower than the real machine. Currently, a dummy timer workaround is needed, or it's much worse.  Is the problem here is due to timing of CPU addressbus changes?
  
 
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/konamim2.cpp konamim2] ==
 
== [http://github.com/mamedev/mame/blob/master/src/mame/drivers/konamim2.cpp konamim2] ==

Revision as of 15:00, 6 March 2019

This page is designed to allow for a quick look over all the drivers with a MACHINE_IMPERFECT_TIMING flag by giving, as much as possible, an idea on the amount of effort needed to fix them.

aristmk5

Games are running at double speed.

cv1k

Games are running faster than on real hardware.

fidel_as12

Seems a little bit slower than the real machine. Currently, a dummy timer workaround is needed, or it's much worse. Is the problem here is due to timing of CPU addressbus changes?

fidel_eag68k

feagv10 - V9(68030 @ 32MHz) is faster than V10(68040 @ 25MHz) but it should be the other way around, culprit is unemulated cache?

feagv11 - V11 CPU should be M68EC060, not yet emulated. Now using M68EC040 in its place at twice the frequency due to lack of superscalar.

fidel_elite

fidel_sc12

Seems a little bit slower than the real machine. Currently, a dummy timer workaround is needed, or it's much worse. Is the problem here is due to timing of CPU addressbus changes?

konamim2

Games are running slower than they should.

taitojc

Games are running at wrong speed(unthrottled?) compared to pcb recordings, easily noticeable on sidebs/sidebs2, for example the selection screens are too fast, and the driving is almost twice as slow.