Game Cheats or Trainers

[Khaizeka]

I've found a number of text files with cheats for various games.

Can these be entered in using Applewin 1.29? 

I've had little luck finding trained versions of most stuff.

[TheDevil'sCompass]

Should work just like a regular Apple. Are you having problems with some of them working?

[Khaizeka]

What I meant was, how are these codes entered? While the game is running? I think with some you may have to alter a copy of the game with a sector editor, which I know nothing of.

Sorry if I wasn't or am not being too clear, and thanks for any advise.

[TheDevil'sCompass]

If they're HEX then yes, you'll have to enter them in using a sector editor to make them permanent. You'll need to use something like COPY II+ to do it. Usually those edits specified the track and sector to edit. If not, you'll need to run a search to find the original values.

[The Usotsuki]

There's ways and there's ways but there's always ways.

[Khaizeka]

Here is an example of another type puzzling me

 

 

SERPENTINE
----------
BLOADSERPENTINE
CALL-151
81A:# SERPENTS
7FDG

 

I'm guessing Bload means to binary load this from dos?

That's all I can figure out.

 

Thanks again for your help!
 

 

[nick3092]

Basically those steps are:

 

Loading a binary file to memory from dos

Entering the Apple monitor

Changing the parameter in memory

Running the program from a specified address

[The Usotsuki]

2 hours ago, Khaizeka said:

Here is an example of another type puzzling me

 

 

SERPENTINE
----------
BLOADSERPENTINE
CALL-151
81A:# SERPENTS
7FDG

 

I'm guessing Bload means to binary load this from dos?

That's all I can figure out.

 

Thanks again for your help!
 

Exactly.

 

"CALL -151" enters the built-in firmware debugger.  Then you just memory-edit the program (that's what the "81A:" is) and start it with the 7FDG command.

 

Alternatively in AppleWin after it loads you can enter the debugger and modify the memory address with the "meb" command.

[TheDevil'sCompass]

5 hours ago, Khaizeka said:

SERPENTINE
----------
BLOADSERPENTINE
CALL-151
81A:# SERPENTS
7FDG

 

I'm guessing Bload means to binary load this from dos?

That's all I can figure out.

In this case, you're talking about a single game file so there's no need to sector edit. Let's say you want to permanently change the number of serpents in your copy of the game to 15 (0F in Hex). Before running the game, you'll want to exit back to DOS to save the file on your disk image. You can exit the monitor by pressing CTRL-C and Enter or typing 3D0G (that's a zero not an "O") and Enter. After that you need to find the starting address and length for the SERPENTINE file so you can save it to disk.

 

BLOAD SERPENTINE

CALL -151

81A:0F

3D0G

 

To find the starting address in decimal (XXXX):

PRINT PEEK(43634)+PEEK(43635)*256

 

To find the length in decimal (YYYY):

PRINT PEEK(43616)+PEEK(43617)*256

 

To save your trained version of SERPENTINE:

BSAVE SERPENTINE,AXXXX,LYYYY

 

As an example, let's say the starting address returned: 16384

and the length returned: 8192

 

You'd then save your file with: BSAVE MYGAME,A16384,L8192

 

Then you can jump back into the monitor with CALL -151 and type 7FDG (this means run whatever is at Hex memory address: 7FD) to start your game or you can run it back from disk with BRUN SERPENTINE.