Read the documentation in qemu-doc.html.
Fabrice Bellard.
I am glad to see OpenEZX revived on GitHub. I remember when OpenEZX was nowhere to find in 2019. Looking back several products about montavista linux phones, OpenEZX shut down the website, re-opened a website and put the archive on GitHub, uClinux shut down the website and put the archive on Sourceforge, EZXCodec was still on https://forum.motofan.ru/index.php?showtopic=125183 and so on. I am the first people forking this repo, since A1200e was my first "smartphone" and I used it through my high school time, now I am a programmer and finally have the ability to read some Linux kernel code or other code.