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ROM HACKING14,794 hacks

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Nintendo Entertainment System · Improvement

Dick Tracy MMC5 Patch

By Dracula X

Dick Tracy · All hacks & resources →

Dick Tracy MMC5 Patch gameplay screenshot.

About this project

This is an Mapper Conversion hack for Dick Tracy ROM from UNROM to MMC5.

Features:

Expansion RAM ($5C00-$5FFF, read/write)
CPU $6000-$7FFF: 8 KB switchable PRG RAM bank
Bankswitching included. Readme file for more info.
Extended RAM mode ($5104)

Read the Readme for changes in this version v1.3

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

Now works with BizHawk and Mesen.

Original game requirements

Database match: Dick Tracy (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: 66A1DD97389BA92AC2CBB956858ECF48BE32CD18
File CRC32: E431136D
ROM SHA-1: E2645645C72061DEDD43AEDBD1BF6D1C4EACCFD8
ROM CRC32: D738C059

Creator credits

Dracula X: Listed creator

RELEASE 1.3

Readme & instructions

4640readme.txt

Dick Tracy Mapper Conversion From UNROM to MMC5 (from UNROM to Mapper 5) by Dracula X RELEASE DATE: August 14, 2019 Last Modified: August 18, 2019 TIME SPAN FROM START TO FINISH: 1 Day Bankswitch: To use it, all you have to do is select a bank and jump to it. LDA bank_number JSR $FFB0 I had to expand the ROM because Dick Tracy had a little of free space in hardwired bank. You can also use Nflate from http://www.romhacking.net/ Utilities to expand the ROM up to 512kb.

Read moreRead less

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

RELEASE DATE: August 14, 2019
Last Modified: August 18, 2019
TIME SPAN FROM START TO FINISH: 1 Day

Bankswitch:
To use it, all you have to do is select a bank and jump to it.

LDA bank_number
JSR $FFB0

I had to expand the ROM because Dick Tracy had a little of free space in hardwired bank.

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:

LDA bank_number
JSR $FFB0
JMP New Location

or

LDA bank_number
JSR $FFB0
RTS

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

Credits:
Rockman: for info on how to convert the mapper!
Disch: for his mapper docs!

Have fun!


Changes for this version 1.3:
Change all $FF's to $00's in the expanded ROM area from location $20000

Changes for this version 1.2:
Change MMC5 setup code at $3ff00 in the Expanded ROM area.
Fixed: I changed $4c JMP to $20 JSR because it was wrong at location $1ffe6.

Changes for this version 1.1:
Fixed the Nametable mapping ($5105)



Non Supported Emulators:
Nintendulator
RockNES
VirtuaNES

Download 4640readme.txt ↓

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