Found in some shareware code:
MVI RO,2 Please page down when you think you know what the program was doing. elsewhere RO EQU SEEKO+7,1I finally figured out what was happening when I copied the code from the PC editor I was using to view the shareware code to a test program in xedit so I could see what it was actually doing. The character after the "R" was the letter 'OH', not a 'zero', but the pc editor does not display a significantly different item for zero and the letter 'O'.
Tony Thigpen