The emulator doesn't correctly import LST files with the -run parameter when there are 0x0A or 0x0B characters in the file, even though it can be discovered that 0x9B is being used as the end-of-line character in the file.

The solution is for atari800 to pre-scan the first lines of the program to see if 0x9B is being used (double-checking that it appears in front of line numbers as an extra confirmation). If 0x9B is in use, then atari800 shouldn't convert any 0x0A or 0x0B characters into 0x9B on the load.

I tried to generate a .LST file with E."H:PROGRAM.LST":RUN in it and run that instead, but the emulator doesn't like the ENTER command being used at the same time as -run since they use the same facilities.