nfg.forums

Quote from: neko68k on November 05, 2024, 11:41:18 AMI'll take a look tomorrow evening maybe unless someone beats me to it. Still, I strongly recommend using windrv to access host drives from inside the emulator rather than DiskEditor. Similarly I would just copy from hdd to hdd if it was convenient. I can set you up with a boot disk with windrv if you want then you just have to point the emulator at some host folders and they'll appear as drive letters.

Describe what windrv is and how to use it because I have absolutely no idea

Quote from: spectreman on November 05, 2024, 10:46:29 AMStarting the game V'Ball, with the fix on the HDD image of Eidis the game is normal, but when I copy the game into the HDD image of incrediblehark, it gets corrupted showing abnormal colors and graphic defects.

The other games that have received a fix work without problems, after the transfer.

I use editd169e, which previously always worked well.

I'll take a look tomorrow evening maybe unless someone beats me to it. Still, I strongly recommend using windrv to access host drives from inside the emulator rather than DiskEditor. Similarly I would just copy from hdd to hdd if it was convenient. I can set you up with a boot disk with windrv if you want then you just have to point the emulator at some host folders and they'll appear as drive letters.

Starting the game V'Ball, with the fix on the HDD image of Eidis the game is normal, but when I copy the game into the HDD image of incrediblehark, it gets corrupted showing abnormal colors and graphic defects.

The other games that have received a fix work without problems, after the transfer.

I use editd169e, which previously always worked well.

Congratulations neko68k, great job.

I tried all the games with the fixes on the XVI at 10MHz and 16MHz and they all launch.

Any luck with an internal solution? I just received a CZ-500C and have a hard time finding an internal connector. I don't see any IDC50 but there is a small 40 pin connector and cable to the external scsi board. unfortunately my cable is short and doesn't have an extra connection for an internal drive, but there is a mounting plate and power cable for an internal drive. If anyone has a cable / adapter let me know!

Thank you!

Here is vball and soccer. Glad to be of service

This is awesome! Thank you @neko68k  These will be added to the image I am working on. Thank you again for taking the time to look into this for us, and thanks @rezb1t for the New Zealand story fix as well. This is really exciting!

There are 2 other games I know of that exhibit the same behavior - Nekketsu Soccer and US Championship V'Ball. Would either of you be willing to make fixed executables for these as well? Thank you again for solving this problem, I really appreciate the help!

Quote from: neko68k on November 04, 2024, 03:41:07 PMOKOK so that's all nonsense lol. So eventually river city ransom (probably others are similar) gets to

Code Select Expand

        movea.l #$00000500,a0
move.w #$000f,d0
move.w #$00ff,d1
L000bf0:
and.w (a0),d1
addq.w #4,a0
dbra d0,L000bf0
cmpi.w #$00ff,d1
bne L000ce0
The value here that it ends up checking with that cmpi.w isn't $00ff. If I change the contents of d1 before that comparison the game works fine. I can't find in my docs what lives at $500. I might ask around unless someone knows offhand. Kamada-san almost certainly knows but I hate to bother him.

Anyway, hack-fix is probably easy. Proper fix is maybe not. I'll do some more digging later and if worse comes to worse I'll just release a hack-fix for these and we can all move on with our lives.

I checked New Zealand Story with dis.x and found the exact same code referenced here in that game too. Replacing the bne instruction with nop instructions makes it work perfectly via internal SCSI on my XVI Compact as well.

Attached is the New Zealand Story executable with the fix. All credit goes to neko68k

Quote from: neko68k on November 04, 2024, 05:21:45 PMOk here's what I'm gonna do. This is a new reply for clarity. I NOPed the 'bne' shown in the [edit] portion of the above post.

The attached 7z has a file called 'dtwfix.x'. Stick this in the river city ransom directory and change the !start.bat to run 'dtwfix.x' instead of 'dtw.x' and let me know if that works. It works in xm6. If this works for you internal SCSI folks I'll go see about fixing the other games in a similar fashion.

Just tested your fix and it works perfectly on my XVI Compact! Nice work.