Help with game genie codes for Gauntlet 2 (NES) Sorry, I am new to all this.

[nuomega457]

I need help with codes for Gauntlet 2 (NES). I found these here on the site: http://www.gshi.org/?s=v2&sys=5&gid=5220 I don't know what they are and how to use them. Can these be made into GG codes? If so, how? There is a section for GG Gauntlet codes but they aren't as many as the ones here and the ones here have the codes I want to use. Any help would be greatly appreciated. Thanks!

[Tony H]

Are you using a real NES and Game Genie, or an emulator?

[nuomega457]

Gauntlet 2 (NES). Made some progress.

OK, I have made some progress after reading the how to hack a nes rom document. I was able to make the following game genie codes for the following using the FCEUX debugger and GG code converter:

P1 Reflective Shot 000716 FF
GG Code: NYVGEKSU

P1 Have Super Shot 00071B 0A
GG Code: ZAVKXKSU

However I can't get the following to work: Level Select, P1 Infinite Potions, P1 Armor, P1 Fight Power, P1 Magic, P1 Shot Power, P1 Appearance Modifier and P1 Speed.

What am I doing wrong here?
For example, I load 00664F (P1 Appearance Modifier for "Death" is 00664F 0A) into the debugger and tell it to halt when something reads or writes to it. I get the following:

Read: 07DB6:BD 4E 66 LDA $664E,X @ $664F = #$04
Write: 07AFB:99 4E 66 STA $664E,Y @ $664F = #$00

Then I create the GG code: ZEUIVSSU (DDB6 BD 0A) and ZENSUXOO (DAFB 99 0A) respectively. I tried them separately and together and either way it doesn't work and the game bombs.

Here is how I got P1 Reflective shot to work (000716 FF).
Load 000716 into the debugger.
Set to read, I get this: 07:CC60:BD 15 07 LDA $0715,X @ $0716 = #$00
To get the game genie code I did this: CC60 BD FF
...which gave me this: NYVGEKSU

Thanks!

[nuomega457]

@ Tony Hedstrom - I'm using an Emulator.

[Tony H]

Many NES emulators will accept the codes that you linked to above: http://www.gshi.org/?s=v2&sys=5&gid=5220

They're just RAM addresses with values.

So there's no need to make Game Genie equivalents unless you just want to learn how.

[nuomega457]

Many NES emulators will accept the codes that you linked to above: http://www.gshi.org/?s=v2&sys=5&gid=5220

They're just RAM addresses with values.

So there's no need to make Game Genie equivalents unless you just want to learn how.

Many NES emulators will accept the codes that you linked to above: http://www.gshi.org/?s=v2&sys=5&gid=5220

They're just RAM addresses with values.

So there's no need to make Game Genie equivalents unless you just want to learn how.

Unfortunately I use a MAC and there are no NES emulators that will accept par codes. This is why I have been trying to convert them. But on the bright side, I have gotten some help and got to understand much more than before with how it all works and even made a code or two from scratch that actually work. So definitely learning more with assembly codes and what each operation function does and why certain ones must be used depending on what you want to do. For now, I will mess with the debug menu with addresses that change and play around with them to see what they do. Thanks everyone who helped me! :-)