Jackal: Jackal MMC5 Patch

This is a Mapper Conversion hack for Jackal ROM from UNROM to MMC5.

Features:

Note: The author has tested most of the emulators, but doesn't work well with Nintendulator, RockNES, and VirtuaNES.

Jackal Conversion
From UNROM to MMC5 (from UNROM to Mapper 5)
by Dracula X

RELEASE DATE: 9-25-2021

MMC5 Setup is located at $3FE10


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:

LDA bank_number
JSR $FFE0
JSR New Location

or

LDA bank_number #$80
PHA
LDA bank_number #$00
PHA
LDA bank_number #$08
JSR $FFE0
RTS



New location would be $8000 or $A000 etc... Bank 08 would be at $20010.

CHR bank 1 (Right side of PPU) is at $FFD4

To switch background pages, use like so:

LDA page_number
JSR $FFD4

Nametable Mapping Routine (one of its uses is mirroring) is at $FFD0

To change mirroring for instance, use like so:

LDA mirroring_number (#$50 for Horizontal, #$44 for Vertical)
JSR $FFD0


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!


Added three patches for Mode 1, 2 and 3.
Patch 1 is for Mode 01.
Patch 2 is for Mode 02.
Patch 3 is for Mode 03.


Have fun!

Non Supported Emulators:
Some old emulators might not work until I find a way.
RockNES
VirtuaNES

Database match: Jackal (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 6AE152E9A223FF2D4C226DE2835489FB2F8CBD02
File CRC32: D7DFA90F
ROM SHA-1: 813E6A8BC0A502BB393F8729B1BC19836D5421A5
ROM CRC32: 1D5B03A5