Path: utzoo!attcan!uunet!cs.utexas.edu!csd4.csd.uwm.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!dgc.mceo.dg.COM!Bruce_Kahn From: Bruce_Kahn@dgc.mceo.dg.COM Newsgroups: comp.sys.apple Subject: Code Fragment question Message-ID: <8908151859.AY00046@adam.DG.COM> Date: 15 Aug 89 17:59:46 GMT Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: KAHN%void.mceo.dg.com@relay.cs.net Organization: The Internet Lines: 16 CEO summary: I was taking a look at possibly porting MAC.TRANS.GS to C and adding a nicer interface to it but I have to "port" the ML routine as well. I cant decypher one part: JSR $C50A LDX #00 BCC 1: TAX 1: STX 338 The routine saves the memory region 42.47, loads it with values, makes the call, and then restores the region. I cant find any reference to it any any of my manuals. Can someone help me with what this code fragment does and what the values at 42.47 are used for (my map of zero page does not describe them)? I would like to know what C50A does and what params it takes. Bruce (KAHN@ADAM.DG.COM)