02145: All sets in cave.c: doesn't working save states

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
02145	Save/Restore	Minor	Always	Aug 22, 2008, 04:04	Aug 22, 2008, 18:39

Tester	hotcoke	View Status	Public	Platform	MAME (Unofficial Binary)
Assigned To		Resolution	No change required	OS	Windows XP/Vista 32-bit
Status [?]	Closed			Driver	misc/cave.cpp
Version	0.126	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	02145: All sets in cave.c: doesn't working save states
Description	Look Screenshot....
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	All sets in cave.c

Attached Files	cavesave.JPG (80,308 bytes) Aug 22, 2008, 04:04

No.02162 Tafoid Administrator Aug 22, 2008, 04:27	I don't see at any time any games in CAVE.C have had official support for SAVE STATES. While you can attempt to Save a State for any game in MAME, there is no flag in the source saying that this particular driver has had officially coded support, so any success you have using the SHIFT+F7/F7 is purely coincidental. It may work one version and not another. If the driver/set were to have a GAME_SAVE_SUPPORTED flag in the source, perhaps there would be something that could be done about it. Those with that flag are games which have had the Save State routine EXPLICITLY CODED for the driver/set. Using the command -autosave will tell you if a driver/set supports Save States. From the config.txt document in the DOCS folder: F7 Load a save state. You will be requested to press a key to determine which save state you wish to load. Note that the save state feature is not supported for a large number of drivers. If support is not enabled for a given driver, you will receive a warning when attempting to save or load. Again, this is not a bug and closed because a driver/set which does not have Save State support coded is not guaranteed to successfully work with saving or loading of States. Sorry.
No.02183 john_iv Senior Tester Aug 22, 2008, 18:39	Also MameUI32/64 have a save state folder view on the left so you can quickly see if a driver has 'proper' support; as a suggestion if you don't want to dig into the source to see.

No.02162

Tafoid

Administrator

Aug 22, 2008, 04:27

I don't see at any time any games in CAVE.C have had official support for SAVE STATES. While you can attempt to Save a State for any game in MAME, there is no flag in the source saying that this particular driver has had officially coded support, so any success you have using the SHIFT+F7/F7 is purely coincidental. It may work one version and not another.

If the driver/set were to have a GAME_SAVE_SUPPORTED flag in the source, perhaps there would be something that could be done about it. Those with that flag are games which have had the Save State routine EXPLICITLY CODED for the driver/set. Using the command -autosave will tell you if a driver/set supports Save States.

From the config.txt document in the DOCS folder:

F7        Load a save state. You will be requested to press a key to
          determine which save state you wish to load. Note that the save
          state feature is not supported for a large number of drivers. If
          support is not enabled for a given driver, you will receive a 
          warning when attempting to save or load.

Again, this is not a bug and closed because a driver/set which does not have Save State support coded is not guaranteed to successfully work with saving or loading of States. Sorry.

No.02183

john_iv

Senior Tester

Aug 22, 2008, 18:39

Also MameUI32/64 have a save state folder view on the left so you can quickly see if a driver has 'proper' support; as a suggestion if you don't want to dig into the source to see.