Teenage Mutant Ninja Turtles
Mapper Conversion Patch
FROM Mapper 1 (MMC1) TO Mapper 5 (MMC5)
Converted by Dracula X
RELEASE DATE: 2/3/2020
Last Modified: 5/16/2020

PRG Bankswitch Routine is at $CEA5

To switch banks from $C000 - $FFFF, use like so:

LDA bank_number
JSR $CEA5
JMP to any location in $8000-$BFFF




CHR Sprite Bankswitch Routine (Left side of PPU) is at $CE71

To switch sprite pages, use like so:

LDA page_number
JSR $CE71




CHR Background Bankswitch Routine (Right side of PPU) is at $CE6A

To switch background pages, use like so:

LDA page_number
JSR $CE6A




Nametable Mapping Routine (one of its uses is mirroring) is at $CE56

To change mirroring for instance, use like so:

LDA mirroring_number (#$50 for Horizontal, #$44 for Vertical)
JSR $CE56

This patch will not work for:
Gekikame Ninja Den (Japan)
Teenage Mutant Ninja Turtles (USA) (Beta)

Hacks supported:
All!

Use Delta Patcher to patch the ROM. 
Ignore the checksum and then patch the file.


Other info: fixed the mirroring bug.


Credits:
Rockman or RetroRain: for info on how to convert the mapper!
Disch: for his mapper docs and a better MMC5 startup!

Original Mapper Converter:
RetroRain
None of his work have not been used in this hack.

Changes for this version 1.1
Fixed the PPU Viewer Pattern Tables.

Non Supported Emulators:
Nintendulator
RockNES
VirtuaNES