Extract roms from psx iso KonamiAntiquesMSXCollectionVolume2

By Gig71

Supporter (7)

Gig71's picture

14-02-2018, 21:50

Hi to All.
congratulations for this Absolute great web site.

I wonder if it's possible to extract roms from the iso i mentioned.
Because I saw that athletic land there is hacked to start with a trigger and not with a num key like the original rom for msx.

I need this cause I have retropie and bluemsx on retropie does'nt not support number keys on gamepad.

hoping in help, and forgive my bad english.
thanks

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By FiXato

Scribe (1457)

FiXato's picture

14-02-2018, 22:09

By Samor

Paragon (1985)

Samor's picture

14-02-2018, 22:46

It's possible, I'm sure msx.org user hap once did as I had them, but I can't find the files.

I'm also not sure if what you say would actually work, it depends on how the rom was modified. There were also some games in the collections that simply didn't start on a real MSX (or emulator) due to modifications.

By Gig71

Supporter (7)

Gig71's picture

14-02-2018, 23:03

Thanks for the answers.
I remember I was unable to assign a keyboard button to a joypad button.
I'm on holiday now and i don't have my RPI to try again.
something recently is changed in lr-bluemsx (some number button are mapped to gamepad but only works in colecovision mode).
I will try again when i can.

Maybe will be great if One msx expert user will create a ips file to patch the original rom to start with trigger of joystick.

Thanks again. Wink

By Fabf

Master (217)

Fabf's picture

04-04-2018, 20:07

Hi
Does anyone manage to extract Athlectic Land ?
I'ts not for use with RPI, it's for a kind of MSX console.
Thanks

By gdx

Prophet (2152)

gdx's picture

05-04-2018, 10:25

Some Roms from Konami Antiques MSX Collection are patched with unused Z80 instructions to directly call PSX routines to use the PSX controller instead of MSX keyboard.

You're lucky that I'm not too resentful. Wink

Below is a patch to fix it:
https://1fichier.com/?llooylm4bm

Method to extract the ROM:

1/ Start Athletic Land with a PSX emulator (eg PCSXR)
2/ Freeze the game state
3/ The resuslting file in the folder "Save States" is a zip archive. Rename the extension name to ZIP then unzip it.
4/ Look for the 4 bytes 41 42 77 40 into unzipped file with a hexa editor. These are the first 4 bytes of the ROM. The length is 16kB.
5/ Save these 16kB and apply the patch on this file.

By Fabf

Master (217)

Fabf's picture

10-04-2018, 13:13

Hi GDX

I'm also not too resentful. Wink

I've tried but not succeed with your method.
I've found the 4 bytes 41 42 77 40
I've extracted the 16Kb
The ROM start well but hang with green and bleu screen.

I don't really want Konami Antiques games, only games start with joystick for my MSX bartop (no RPI emulation Smile2 )
I'll try this topic : https://www.msx.org/forum/msx-talk/development/patches-for-a...

By gdx

Prophet (2152)

gdx's picture

10-04-2018, 13:18

If you do not apply the patch on this Rom, it will not work.

By Fabf

Master (217)

Fabf's picture

10-04-2018, 23:16

Sorry ROM have been patched oO

By sdsnatcher73

Master (152)

sdsnatcher73's picture

11-05-2018, 05:59

Just use the original ROMs and patch them with joystick support courtesy of gdx.

By Fabf

Master (217)

Fabf's picture

11-05-2018, 07:26

sdsnatcher73 wrote:

Just use the original ROMs and patch them with joystick support courtesy of gdx.

Done LOL!
https://www.msx.org/forum/msx-talk/development/patches-for-a...

My MSX profile