Sega Master System / Mark III / Game Gear
|1||28 Mar 2017||nextvolume BcnAbel76||Pengo-GG-GG2SMS-1.zip||???KB|
There is a forum topic for Pengo GG2SMS
This hack is made by 0, differs from already done none Japanese version, because it includes PopCorn Music!!!
First release v1
This is the first release of this patch that allows you to play Pengo, a game released in 1991 by SEGA for the Game Gear, on your Master System.
The game works well, and is playable. I could find no problems, if there are any, let me know.
The Game Gear START button is mapped to Button 1 on the Master System, and does what START used to do on the Game Gear (pause, etc.)
The patch applies to a ROM image of the European and American version of the Pengo cartridge.
In this archive other than for the IPS format patch, named `pengo_sms.ips', you can find the full source code of the injected code snippets that were used to make the patch; this means that if you are technically versed, you can improve the patch yourself. The Makefile is very simple and easily understood; to build the patch, simply run `make'. The ROM image must be placed in this directory and named `pengo_orig.sms'; the patched ROM afte running `make' will be named `pengo.sms'. The Makefile assumes you are on a Unix-like operating system; if you are on Windows you can try using MSYS or Cygwin.
The assembler you will need to use is z80asm (http://www.nongnu.org/z80asm/)
inject, fixsum, nop and putstring were written by me (nextvolume), they will respectively inject a code snippet, fix the ROM checksum, insert NOP instructions in the ROM and insert a string in the ROM; do whatever you want with them, but give credit.
-nextvolume 17th May 2014
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