Generate an output file
type - type of output file. One of OFILE_... symbols. See below.
fp - the output file handle
ea1 - start address. For some file types this argument is ignored
ea2 - end address. For some file types this argument is ignored
flags - bit combination of GENFLG_...
returns: number of the generated lines.
-1 if an error occurred
OFILE_EXE: 0-can't generate exe file, 1-ok
int gen_file(long type, long file_handle, long ea1, long ea2, long flags);
// output file types:
#define OFILE_MAP 0
#define OFILE_EXE 1