Messages

Next steps:
1. Make functions separate. Currently due cross jumps one code segment is one function
2. Translate structures

Function arguments are transfered over virtual registers. But new code not restricted

Converted source code is here https://github.com/xor2003/libdosbox/tree/masm2c/src/custom/src_restunts

Yes, you can modify converted source code and it will be able to use more memory.
By default data is inside 640k memory structure but you can create new data outside. The asm-like code does not care there the data is located.