Hi @GAO123
We can use decoder.exe under CW11 to generate disassembly code. You can search out decoder.exe under CW11 install folder.
Set Options as : -A -Proc=M68k
Drag your S19 file to the decoder, and you will see a *.lst file generated. Then, scroll down and you will see the disassembly generated in the lst file, for example as follows.

Have a nice day,
Jun Zhang