Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!willett!ForthNet
From: ForthNet@willett.UUCP (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: Advanced Beginners
Message-ID: <531.UUL1.3#5129@willett.UUCP>
Date: 22 Feb 90 23:30:17 GMT
Organization: Latest link in the ForthNet chain.  (Pgh, PA)
Lines: 39


 Date: 02-21-90 (15:53)              Number: 2940 (Echo)
   To: IAN GREEN                     Refer#: 2601
 From: MICHAEL HOBSON                  Read: NO
 Subj: FORTH                         Status: PUBLIC MESSAGE

 re: Beginner's Forth
 There are some exellant Forth Tutorials on this board (check the file 
 areas).  For your immediate questions:

 For sixteen bit numbers:

         @    - 'fetch'  (addr - number)  replace address on top of
              stack with the value at that address.

         !    - 'store'  (number addr - ) stores number below top of 
              stack into address at top of stack.  Both values are 
              consumed (POPed).

 For eight bit numbers:

         C@   - 'c-fetch' (addr - char)  rreplace address at top of stack
              character value at that address.  For iapx86 machines, the 
              value is zero-extended into an unsigned integer.

         C!   - 'c-store' (char addr - )  store character value below top
              of stack into address at top of stack (byte store).  Both 
              items are consumed (POPed) 

 Good luck with RTX2001A kit, Ian.

 "The Elf" [^]-[^]
            \---/
 Elf - A wise and helpful variety of magical being.

 NET/Mail : British Columbia Forth Board - Burnaby BC - (604)434-5886   
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