| Random Number Generator for SNES | FinS | This is a fast effective RNG using the H/V scroll setting as a seed without excessive redundancy for the 65816 processor.
Creates a table of random numbers at $1100 ram or edit to a chosen location.
| Assembly | SNES | Multiple Games | 1.0 | Int | 02 Mar 2014 |
| FCEUd, Tutorial #1 (Hacking Character Stats) | Parasyte | Parasyte gently introduces the FCEUd interface and ASM hacking techniques. Romhackers will learn to modify the jump height of Samus in the original Metroid. (Applies equally to FCEUXD SP debugging) | Assembly | NES | Metroid | 1.0 | Int | 01 Jan 2003 |
| Startropics Level Format Notes | Jigglysaint | This is a text file archiving some level format notes posted by Jiggleysaint and ETG in a thread on RHDN’s Message Board on October 8,2007. | Game Specific | NES | StarTropics | 1.0 | Beg | 08 Oct 2007 |
| FCEUd, Tutorial #2 (Password Generators) | Parasyte | Parasyte continues his FCEUd hacking explination and this time delves into reverse engineering NES password generators. Romhackers will apply techniques on an Adams Family game. (Applies equally to FCEUXD SP debugging) | Assembly | NES | N/A | 1.0 | Adv | 30 Apr 2003 |
| FF4 Advance Data Structures | PKT Paladin | Structure data for items, level up data, and spell learning data.
This info is based on the US version of the game. You can do a similar search with these known values on the other versions of the game as it should be relatively close by. | Game Specific | GBA | Final Fantasy IV Advance | 1.0 | Beg | 20 Jun 2009 |
| FCEUd, Tutorial #3 (Compression in ROMs) | Parasyte | Parasyte explains how to use FCEUd to locate and reverse engineer graphics compression in NES roms. Hackers will see a real world example on The Goonies II. (Applies equally to FCEUXD SP debugging) | Assembly | NES | The Goonies II | 1.0 | Adv | 30 Apr 2003 |
| How to find & edit enemy health with FCEUXD | bbitmaster | bbitmaster explains how to locate and edit enemy health in almost any game with FCEUXD. Hackers will apply this knowledge on Ninja Gaiden 1. (Applies equally to FCEUXD SP debugging) | Assembly | NES | Ninja Gaiden | 1.0 | Int | 14 May 2008 |
| Lost Woods & Lost Hills Hacking | Dr. Floppy | Comprehensive guide to altering the special sequences of the Lost Woods and Lost Hills in The Legend of Zelda. | Game Specific | NES | The Legend of Zelda | 1.0 | Beg | 17 Jun 2009 |
| SMB3 Object Data & Enemy Data Orders | Quick Curly | This document is for Super Mario Bros. 3 for the NES.
There is nothing really “new” in this document. I made it to organize the enemy data and object data as it appears in the SMB3 ROM. This is useful if you intend to expand the enemy da…. | Game Specific | NES | Super Mario Bros. 3 | 1.0 | Beg | 25 Feb 2009 |
| Programming the 65816 | Western Design Center | Official programming guide to the 65816 microprocessor. Also includes documentation on the 6502, 65C02 and 65802 microprocessors. 469 pages covering basic assembly language concepts, microprocessor architecture, instruction sets, simple and complex…. | Assembly | SNES | N/A | 1.0 | Int | 28 Apr 1992 |
| Automatic Line-Wrap Example ASM | KingMike | This is some source code to a automatic word-wrap hack from KingMike’s Translations Shell Monsters Story translation.
It was useful as the translation had used some long names and it would have been difficult to format the line-breaks used in t…. | Source Code | NES | N/A | 1.0 | Adv | 06 Jun 2014 |
| JIS X 0211 Table | Tauwasser | A complete JIS X 0211 table file encoded in UTF-8.
Please note that JIS X 0211 contains control codes only! You will have to have a special hex editor to use it in this format. | Table Files | N/A | N/A | 1.0 | Beg | 06 Jun 2009 |
| ZSNES Savestate Format | ZsKnight | Straight from the creator himself, this is the ZSNES save state format documentation. This is a must have for serious save state hackers! | Save State Hacking | SNES | N/A | 1.0 | Beg | 25 Oct 2011 |
| JIS X 0213 Table | Tauwasser | A complete JIS X 0213 table file encoded in UTF-8.
Note that this does not contain private Windows remappings. Rather it follows the JIS X 0213:2004. | Table Files | N/A | N/A | 1.0 | Beg | 07 Jun 2009 |
| ZSNES Savestate SPC Format | _Demo_ | This is a detailed look at the SPC portion of the ZSNES savestate. This is invaluable information for anybody trying to learn some SPC700 hacking skills.
The companion general ZSNES savestate format document can also be found right here at ROMhack…. | Save State Hacking | SNES | N/A | 1.0 | Int | 21 Dec 2005 |
| ISO/IEC 646 Table | JPN Translations | A table for the ISO/IEC 646 encoding, an older version of ASCII. | Table Files | N/A | N/A | 1.0 | Beg | 20 Jun 2009 |
| Freshly-Picked Tingle's Rosy Rupeeland | joesteve1914 | Table file for Tingle’s Rosy Rupeeland (text located in lang.bin files)
Only includes latin alphabet, not punctuation or accented letters. (They’re not that hard to figure out if you want them) | Table Files | NDS | Freshly-Picked Tingle's Rosy Rupeeland | 1.0 | Beg | 26 Oct 2014 |
| SNES Register Map | Nintendo | A short and sweet guide to the SNES hardware registers. It can be a handy quick reference register sheet when doing SNES programming. Anomie’s Register doc is also recommended. | Hardware Info. | SNES | N/A | 1.0 | Int | 16 May 2007 |
| Phantasy Star II Disassembly | lory1990 | This is a disassembly for the US/EU version of Phantasy Star II. It targets the Macro Assembler AS.
The ASM code produces a byte-perfect copy of the original US/UE ROM.
The code can be changed freely without worrying about shifting data since e…. | Source Code | GEN | Phantasy Star II | 1.0 | Adv | 23 Aug 2019 |
| BRR Sound Encoding Scheme | Butcha | Explains the BRR encoding scheme used by the SPC700 in detail. Note: The filter formulas are not bit perfect if you are coding an emulator. | Hardware Info. | SNES | N/A | 1.0 | Int | 21 May 2007 |
