NES FCEUD codes by Abystus

[Abystus]

Is the tool you speak of, on that page, called the "Game Genie Code Converter 4.0"?

Yep that's the one. As for conversion it should be pretty self explanatory. Just click on the NES section, enter your memory address you wish to convert in the second section and when done filling it out the Game Genie equivalent should appear above.

I tested this (NES) Ninja Gaiden PAR Code on Nestopia
The code works but the game crashes after ten seconds. Are you sure that codes does not crash FCEUX too?

I played through several levels with no problems in FCEUXD SP 1.07. They should be fully compatible with any variation of FCEUX however. Which code in particular crashed your game? Emulators have slight differences between them which could account for the crash, or the rom version is incorrect.

[OldSchoolGamer]

I tested this (NES) Ninja Gaiden PAR Code on Nestopia 1.40

No Enemies (Turn off before boss fights.) 007300

The code works but the game crashes after ten seconds.

[Hybrid]

only codes that fall within the 0x8000 - 0xFFFF range
out of range

[Abystus]

I tested this (NES) Ninja Gaiden PAR Code on Nestopia 1.40

No Enemies (Turn off before boss fights.) 007300

The code works but the game crashes after ten seconds.

I am at work currently so there isn't much I can do for it at the moment. I will take a look this evening to see if there is an issue with the code or if its just a difference between emulators.

[Abystus]

So here is a vid of the code in action running on FCEUX. Rune was nice enough to create this since I was at work. Not sure why Nestopia doesn't like it but it appears to be an emulation difference rather than a code problem. I may see if I can get something working in nestopia as it's just a ram hack.

[Abystus]

Ninja Gaiden (U) PAR FCEUX

Hit Anywhere

DEEB00
DEE300
DED500
DEF7D0
DEF310

Game Genie conversion 6 digit below for those interested:

Ninja Gaiden (U) GG FCEUX

Hit Anywhere
AETSUT
AETIUT
AEIIST
ESYINT
AOYIUT

Game Genie conversion 8 digit for those interested:

Hit Anywhere
AEVSUVPA
AEVIUTIP
AESISTGZ
ESNINTEP
AONIUTEP

[Abystus]

Ninja Gaiden (U) PAR FCEUX

Enemies Continually Being Hit Anywhere (Even bosses almost instantly die.)
DDF200
DEEB00
DEE300
DED500
DEF7D0
DEF310

Game Genie conversion 6 digit below for those interested:

Ninja Gaiden (U) GG FCEUX

Enemies Continually Being Hit Anywhere (Even bosses almost instantly die.)
AEYIXI
AETSUT
AETIUT
AEIIST
ESYINT
AOYIUT

Game Genie conversion 8 digit for those interested:

Enemies Continually Being Hit Anywhere (Even bosses almost instantly die.)
AENIXILA
AEVSUVPA
AEVIUTIP
AESISTGZ
ESNINTEP
AONIUTEP

[nolberto82]

Added.

[Abystus]

Added.

Thanks.

Ninja Gaiden II - The Dark Sword of Chaos (U) PAR FCEUX

Hit Anywhere
CA9CF0
CA8100
CA6A00
CA9200

Ninja Gaiden II - The Dark Sword of Chaos (U) GG FCEUX

Hit Anywhere
ENOKKZEL
AEEGOXKL
AAVKXZUI
AEOGXXIA

[Abystus]

Ninja Gaiden II - The Dark Sword of Chaos (U) PAR FCEUX

Enemies Continually Being Hit Anywhere (Even bosses almost instantly die.)
CA0800
CA9CF0
CA8100
CA6A00
CA9200

Ninja Gaiden II - The Dark Sword of Chaos (U) GG FCEUX

Enemies Continually Being Hit Anywhere (Even bosses almost instantly die.)
AAEKEZGA
ENOKKZEL
AEEGOXKL
AAVKXZUI
AEOGXXIA

[Abystus]

Robocop (U) PAR FCEUX

Hit Anywhere
C87700
C88100
C86D00
C86300
CA3110
C9A600
C98800

Robocop (U) GG FCEUX

Hit Anywhere
AANGNAZZ
AEEGOEAP
AAVKSEGZ
AAVGUATL
APUGOZEI
AEXGVPLA
AEEKEPPZ

[OldSchoolGamer]

Abystus.... you said to enter the PAR code in the Game Genie Code Converter 4.0 to make the code into a game genie code instead of a PAR code. I will use this as an example:

Ninja Gaiden (U) PAR FCEUX

Hit Anywhere DEEB00

When I open the game genie code converter 4.0 and I click on NES... the Hex Code slot has:
4 spaces where you can enter letters or numbers, then there is a " ? ", then there are 2 spaces where you can enter letters or numbers, then there is a " : ", and then there is two more spaces where you can enter letters or numbers. That is a total of 8 letter/number spaces.
The example PAR code I am using only has 6 letters/numbers. So how do I input a 6 digit code into the Hex Code slot which is 8 digits?

[Abystus]

Abystus.... you said to enter the PAR code in the Game Genie Code Converter 4.0 to make the code into a game genie code instead of a PAR code. I will use this as an example:

Ninja Gaiden (U) PAR FCEUX

Hit Anywhere DEEB00

When I open the game genie code converter 4.0 and I click on NES... the Hex Code slot has:
4 spaces where you can enter letters or numbers, then there is a " ? ", then there are 2 spaces where you can enter letters or numbers, then there is a " : ", and then there is two more spaces where you can enter letters or numbers. That is a total of 8 letter/number spaces.
The example PAR code I am using only has 6 letters/numbers. So how do I input a 6 digit code into the Hex Code slot which is 8 digits?

Your example code below:

First Field: DEEB
Second Field: Compare Value
Third Field: New Value (00)

To get the Compare Value you need to have a debugger (Find the address with the code off to see it's original value). The compare value is only used to compare against the value it is about to change. If it is true (compare is equal to the value at that address) then the code goes into place, otherwise the code is skipped (To prevent crashing the game if the original value was changed by the game to something else, or if the game version is different.). There is only need for a compare value if the game changes its value at that address at some point (most games typically won't but most people create 8 digit codes just to be safe), and mostly just a safety precaution. So if you generate a 6 digit GG code it still will have the same effect, however it won't compare before it writes the value.

BTW if your using hardware doesn't it have a 3 code limit anyways? Seems that converting codes longer than 3 lines is only going to provide partial effect at most. Just saying .

[OldSchoolGamer]

BTW if your using hardware doesn't it have a 3 code limit anyways? Seems that converting codes longer than 3 lines is only going to provide partial effect at most. Just saying

I use both, hardware console and emulator.

I understood most of what you said. A debugger can be found in basically any decent emulator right? So using Nestopia as an example... i click on options > cheats. I enter DEEB in the address slot and 00 in the value slot. But what I don't understand is how to find the compare. Above these fields is the CPU RAM with 3 tabs: Index, R0, R1. Underneath each tab is lots or rows of numbers/letters. So how do I find the compare?

[Abystus]

I use both, hardware console and emulator.

I understood most of what you said. A debugger can be found in basically any decent emulator right? So using Nestopia as an example... i click on options > cheats. I enter DEEB in the address slot and 00 in the value slot. But what I don't understand is how to find the compare. Above these fields is the CPU RAM with 3 tabs: Index, R0, R1. Underneath each tab is lots or rows of numbers/letters. So how do I find the compare?

First thing download this emulator: FCEUXD SP 1.07

Next open your game in it, then go to tools>debug. A new window will come up, now just go to the address DEEB in the debug window and see what value it is set to with the code off (should be 09). That (09) is your compare value. After that put the compare value(09) into the second slot of the converter and the new value (00) into the last slot and your complete GG code will be displayed above.