This is a Mapper Conversion hack for Super Pitfall ROM from UNROM to MMC5.
Features:
Note: The author has tested most of the emulators, but doesn't work well with RockNES and VirtuaNES.
Super Pitfall Conversion
From UNROM to MMC5 (from UNROM to Mapper 5)
by Dracula X
RELEASE DATE: 5-3-2022
MMC5 Setup is located at $3FE10
You can also use Nflate from http://www.romhacking.net/ Utilities to expand the ROM up to 512kb.
You can now use free RAM space at $5c00 to $5fff and $6000 to $7fff for cool or new stuff.
Bankswitching:
to bankswitch from $8000 - $Bfff and from $C000 - $ffff, here's how to do it:
Do this in a fixed bank:
LDA bank_number
JSR $C000
JMP New Location
or
LDA bank_number #$80
PHA
LDA bank_number #$00
PHA
LDA bank_number #$08
JSR $C000
RTS
Compact Mapper makes it easier to switch banks and it is located at $C030
JSR Bank_08 - $C046
JMP New Location
JSR Bank_09 - $C04A
JMP New Location
goes up to bank $8D
Do this in $8000-$BFFF for Compact Mapper Example:
; somewhere in 8000-BFFF, bank 6
JSR to a bankswitching routine in a fixed bank
; somewhere in 8000-BFFF, bank A
RTS
; somewhere in C000-FFFF, fixed bank
; saving & restoring AXY regs may be needed
JSR switch to bank 8
JSR to RTS in bank 8 or anywhere in $8000-$BFFF
JSR switch to bank 6
+ original code from bank 6 that was replaced with your JSR
RTS
New location would be $8000 or $A000 etc... Bank 08 would be at $20010.
CHR bank 1 (Right side of PPU) is at $C00D
To switch background pages, use like so:
LDA page_number
JSR $C00D
Nametable Mapping Routine (one of its uses is mirroring) is at $C009
To change mirroring for instance, use like so:
LDA mirroring_number (#$50 for Horizontal, #$44 for Vertical)
JSR $FF50
The setings that was at $C020 is now at Bank 08 at $8000 A little Free Space
Hacks supported:
All!
Hacks not Supported:
MMC1 or MMC3 Hacks!
Use Delta Patcher to patch the xdelta file to the ROM.
Ignore the checksum and then patch the file.
Let me know if the game is not acting normal and I'll fix it. Thanks!
Credits:
Rockman: for info on how to convert the mapper!
Disch: for his mapper docs!
Shredder: for letting me use his Compact Mapper!
Cyneprepou4uk
Compact Mapper manual is an example on how it works from another game.
Have fun!
Non Supported Emulators:
RockNES
VirtuaNES
Database match: Super Pitfall (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 2373E952FECC5F7507F99476E82C298CAB1F51CB
File CRC32: A4958020
ROM SHA-1: B29F4BB5B0C30ED133AD82CA5A2134C31C003862
ROM CRC32: 979C5314