Category Archives: ASM

Automap Without The Map

I’ve been asked if there was a version of the Automap Plus patch without the automap. In other words, just the partial heart pieces in the HUD and faster life refilling with potions and fairies. Easy enough: just chop all of the map-related stuffs from the code, and voila. Download the IPS patch with source […]

Editroid 3.6

A new version of Editroid has been released with some bug fixes (namely a bug that prevented certain screen-load code from running). Grab it from the RHDN Editroid page. Everything should work the same as Editroid 3.5, except fewer bugs.

ASM Hack: Elevator to Same Level

Here is a nice, small hack that allows you to add an elevator to Metroid that, rather than bringing the player to a different level, brings the player to a different part of the same level. This hack is very unlikely to work with any other hack that involves ASM since it uses the memory […]

Editroid 3.5

Time to release a new version of my Metroid editor. This version allows you to add ASM to each screen that will run when the screen loads. It includes a built-in assembler so you can do everything right in Editroid.

Metroid Hacking Resources

This is my attempt to collect and catalog useful resources for Metroid hacking. If anyone wants to make an addition, feel free to tell me in the comments.

FCEUX Debug File Format

Just in case anybody else ever needs to know the format for FCEUX’s debugger’s config files (.deb), here it is, based on the source code for version 2.1.5 (found in \src\drivers\win\pref.cpp) and the contents of actual .deb files.

Metroid: Wavy-Ice

I’ve decided to share my simple Wavy-Ice hack. It allows the player to combine the wave beam and ice beam in Metroid. Note that this only works on a ROM expanded by Editroid 2.1.

snarfblASM Manual

snarfblASM 6502 Assembler Updated 12/2/2012 for version 1.1 (download)