Summary of recent SM64 codes for testing

These codes now at https://sites.google.com/site/sm64gameshark/

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Please test the following and provide feedback! All of this seems to work but some codes might end up causing problems we haven't noticed yet. If you've run these codes for a while and feel like they're not causing any issues, please let me know. Once I have enough feedback I'll update the Google site.


Fixing the Slide Timer

The current timer code starts ticking when you enter the slide level and doesn't reset when you start the actual slide, making it difficult to determine your proper slide time and impossible to complete in under 21 seconds. There's at least two ways to fix this and return the slide timer to its normal behavior. The first option is to patch out the check completely with this line:
US 8125073C 2400
JP 81250564 2400

The second option is to use the "Show Timer in Castle" code from the Google site and remove this line from your existing timer code:
US 8024B197 0040
JP 8024B017 0040


Fixing the Level Reset Camera

If you Level Reset while swimming, flying, in a cannon, etc. you'll end up back in the level with a bad camera. This happens because the camera state is retained during the level reset and not set back to default. The following code hijacks an existing game function and forces the camera back to default whenever you enter a level/sublevel/warp which fixes this behavior but may break cameras elsewhere:
US D233B249 001D
US 812872DA 0001
US D033B249 001D
US 812872DA 0000
JP D2339ED9 001D
JP 81286D2A 0001
JP D0339ED9 001D
JP 81286D2A 0000
Code updated to fix initial camera in Wing Cap stage.


Fixing the Savestate Star-Grab Camera Issue

Collecting a star and then reloading state with the current savestate code leaves you with a bad camera. This happens because the star-grab puts Mario in a new camera state which isn't backed up in the savestate. One way to work around this is to use the non-stop code but it causes issues with 100 coin stars among other things. Another option is to use the following code which simply disables the star-grab camera, though it may break cameras elsewhere:
US 8128C250 A3A0
JP 8128BC50 A3A0

One more option is to use this modified savestate code, it'll reset the "special camera" value back to 00 every time you load state.

The root of the problems is a "special camera" byte which isn't backed up in the savestate. This byte is usually 00 but temporarily changes to a different value to trigger certain special cameras like star-grab, death and doors. The result is that this special camera is retained when you grab a star/die/etc then reload state.

Rather than patching functions to disable each problematic camera we could instead modify the savestate code. Backing up and restoring the special camera byte would increase the code length by about 15-20 lines, but simply resetting the byte to 00 while loading states only takes 4 extra lines.

This'll likely be a preferable solution since it fixes not just the star-grab but other cameras too, while still retaining the proper camera transitions during normal play.

US
812CB1C0 03E0
812CB1C2 1025
812CB1C4 3C08
812CB1C6 8033
812CB1C8 3C09
812CB1CA 8036
812CB1CC 3C0A
812CB1CE 8042
812CB1D0 3C0B
812CB1D2 8034
812CB1D4 8578
812CB1D6 AFA0
812CB1D8 340F
812CB1DA 1000 <- Save Button
812CB1DC 030F
812CB1DE C824
812CB1E0 3C04
812CB1E2 8040
812CB1E4 3545
812CB1E6 6B28
812CB1E8 132F
812CB1EA 000C
812CB1EC 3506
812CB1EE B170
812CB1F0 340F
812CB1F2 000F <- Load Button
812CB1F4 030F
812CB1F6 C824
812CB1F8 3504
812CB1FA B170
812CB1FC 3525
812CB1FE 1C98
812CB200 172F
812CB202 000B
812CB204 3C06
812CB206 8040
812CB208 8D4C
812CB20A 5FE8
812CB20C 8D2D
812CB20E 1158
812CB210 15AC
812CB212 0007
812CB214 8D6E
812CB216 CBD0
812CB218 A1C0
812CB21A 0030
812CB21C 8CC7
812CB21E 0000
812CB220 AC87
812CB222 0000
812CB224 2484
812CB226 0004
812CB228 14A4
812CB22A FFFC
812CB22C 24C6
812CB22E 0004
812CB230 0040
812CB232 0008
812CB234 2400

JP
812CA6E0 03E0
812CA6E2 1025
812CA6E4 3C08
812CA6E6 8033
812CA6E8 3C09
812CA6EA 8036
812CA6EC 3C0A
812CA6EE 8042
812CA6F0 3C0B
812CA6F2 8034
812CA6F4 8578
812CA6F6 9C30
812CA6F8 340F
812CA6FA 1000 <- Save Button
812CA6FC 030F
812CA6FE C824
812CA700 3C04
812CA702 8040
812CA704 3545
812CA706 6B28
812CA708 132F
812CA70A 000C
812CA70C 3506
812CA70E 9E00
812CA710 340F
812CA712 000F <- Load Button
812CA714 030F
812CA716 C824
812CA718 3504
812CA71A 9E00
812CA71C 3525
812CA71E 0928
812CA720 172F
812CA722 000B
812CA724 3C06
812CA726 8040
812CA728 8D4C
812CA72A 5FE8
812CA72C 8D2D
812CA72E FDE8
812CA730 15AC
812CA732 0007
812CA734 8D6E
812CA736 B860
812CA738 A1C0
812CA73A 0030
812CA73C 8CC7
812CA73E 0000
812CA740 AC87
812CA742 0000
812CA744 2484
812CA746 0004
812CA748 14A4
812CA74A FFFC
812CA74C 24C6
812CA74E 0004
812CA750 0040
812CA752 0008
812CA754 2400