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- Path: sparky!uunet!wupost!waikato.ac.nz!comp.vuw.ac.nz!newshost.wcc.govt.nz!kosmos.wcc.govt.nz!mcmillan_a
- Newsgroups: comp.sys.cbm
- Subject: 128 Help Wanted
- Message-ID: <1992Aug24.141139.1@kosmos.wcc.govt.nz>
- From: mcmillan_a@kosmos.wcc.govt.nz
- Date: Mon, 24 Aug 1992 02:11:39 GMT
- Sender: news@peponi.wcc.govt.nz (NEWS)
- Organization: Welligton City Council, Public Access.
- Lines: 22
-
-
- Hello there
-
- This is my first attempt to post a msg into comp.sys.cbm and as I write
- I've no idea if this msg will make it or not.
- I'm hoping to get some help with a 128 programming problem;
-
- I wish to use SYS4864,,,,,AA,A$ in my program.
- The AA variable I can handle, and also A$ if it exists. But if A$ does
- not exist my program doesn't know and I can't figure out how to tell it.
-
- My code is
- 1300 jsr$880f ;variable AA lo in y, hi in acc
- 1302 jsr$795c ;skip comma (I think)
- 1305 jsr$77ef ;eveluate string (??)
-
- I now have AA$'s length and address in $49-4B. But it doesn't show a
- zero length if AA$ doesn't exist.
- Any help MUCH appreciated... have spent many days so far looking!
-
- Cheers - Kirk
-
-