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Hi again, and thanks for the reply.

The Logs folder remains empty no matter what I try - I changed the debug settings on and off, but nothing is ever logged.

As a further test, I downloaded the most recent version and tested it with JPCSP (set to PSP 2000) - still only getting the internal bios, and a black screen after that. I tried discarding my settings file and starting over, making a single change to the default (pure CGA instead of VGA), but the result was no different. The same configuration works fine on the Windows version. A test with the ET4000 rom yields the same results.

Since JPCSP works for you, and the settings are (nearly) the default ones, the only option that I can think of is that the CGA/ET4000 bios files that I found are incompatible with the PSP for some reason. Have you tried your configuration on PPSSPP?

As an aside, I managed to recover the source code for Dosbox PSP and uploaded it here - it compiles and works, but the keyboard is pretty broken. If you felt like adopting the project it would be the greatest thing.

Hello there, Superfury!

I've been looking for a good DOS emulator for the PSP for a while, so I was really glad to stumble upon your project. However, I couldn't get it to boot on my PSP 1000 - it runs out of memory. Perhaps it is incompatible with this model? 

I also tried to get it to work on the PPSSPP emulator, by setting it to emulate a PSP 2000, which has double the RAM. It would boot in this case, but even then, I couldn't get it to reach the BIOS - all it would do was let me change the internal BIOS settings. I also tried some older builds you posted on Vogons, but the result is the same (except, it won't even show the internal BIOS page).

I tried to stick with the most basic tweaks to the settings - 8086 CPU, XT architecture, and CGA graphics. I also tried ET4000, to no avail. I got all the BIOS files from the website linked from your Bitbucket wiki (except for the CGA BIOS), and the same configuration works fine in the Windows version - it boots into BIOS and reads floppy disks correctly. I'll be thankful if you can help me out.

PS: sorry for posting this in the release comments as well, just trying to get the message to reach you, since Itch apparently doesn't have PMs.

Hello there, Superfury!

I've been looking for a good DOS emulator for the PSP for a while, so I was really glad to stumble upon your project. However, I couldn't get it to boot on my PSP 1000 - it runs out of memory. Perhaps it is incompatible with this model? 

I also tried to get it to work on the PPSSPP emulator, by setting it to emulate a PSP 2000, which has double the RAM. It would boot in this case, but even then, I couldn't get it to reach the BIOS - all it would do was let me change the internal BIOS settings. I also tried some older builds you posted on Vogons, but the result is the same (except, it won't even show the internal BIOS page).

I tried to stick with the most basic tweaks to the settings - 8086 CPU, XT architecture, and CGA graphics. I also tried ET4000, to no avail. I got all the BIOS files from the website linked from your Bitbucket wiki (except for the CGA BIOS), and the same configuration works fine in the Windows version - it boots into BIOS and reads floppy disks correctly. I'll be thankful if you can help me out.