File:  [gforth] / gforth / Attic / vars.fs
Revision 1.7: download - view: text, annotated - select for diffs
Sat Oct 7 17:38:21 1995 UTC (26 years, 9 months ago) by anton
Branches: MAIN
CVS tags: HEAD
added code.fs (code, ;code, end-code, assembler)
renamed dostruc to dofield
made index and doc-entries nicer
Only words containing 'e' or 'E' are converted to FP numbers.
added many wordset comments
added flush-icache primitive and FLUSH_ICACHE macro
added +DO, U+DO, -DO, U-DO and -LOOP
added code address labels (`docol:' etc.)
fixed sparc cache_flush

    1: \ VARS.FS      Kernal variables
    2: 
    3: hex \ everything now hex!                               11may93jaw
    4: 
    5: \ important constants                                  17dec92py
    6: 
    7: \ dpANS6 (sect 3.1.3.1) says 
    8: \ "a true flag ... [is] a single-cell value with all bits set"
    9: \ better definition: 0 0= constant true ( no dependence on 2's compl)
   10:  -1 Constant true               \ see starts looking for
   11:                                 \ primitives after this word!
   12:   0 Constant false
   13: 
   14: 1 cells Constant cell
   15: 
   16: 20 Constant bl \ used by docon:, must be constant
   17: 
   18: FF Constant /line
   19: 
   20: 40 Constant c/l
   21: 10 Constant l/s
   22: 400 Constant chars/block
   23: 
   24: \ that's enough so long
   25: 
   26: \ User variables                                       13feb93py
   27: 
   28: \ doesn't produce real user variables now, but normal variables
   29: 
   30: Create main-task  100 cells allot
   31: main-task tup H ! minimal
   32: 
   33: Variable udp \ used by dovar:, must be variable
   34: 
   35: AUser next-task        main-task next-task !
   36: AUser prev-task        main-task prev-task !
   37: AUser save-task        0 save-task !
   38: AUser s0 \ used by douser:, must be user
   39: AUser r0
   40: AUser f0
   41: AUser l0
   42: AUser handler
   43: \ AUser output
   44: \ AUser input
   45: 
   46: AUser errorhandler
   47: 
   48: AUser "error            0 "error !
   49: 
   50:  User >tib
   51:  User #tib
   52:  User >in               0 >in !
   53:  User blk               0 blk !
   54:  User loadfile          0 loadfile !
   55:  2User loadfilename	0 0 loadfilename 2!
   56:  
   57:  User loadline          \ number of the currently interpreted
   58:                         \ (in TIB) line if the interpretation
   59:                         \ is in a textfile
   60:                         \ the first line is 1
   61: 
   62: 2User linestart         \ starting file postition of
   63:                         \ the current interpreted line (in TIB)
   64: 
   65:  User base              A base !
   66:  User dpl               -1 dpl !
   67: 
   68:  User state             0 state !
   69: AUser normal-dp		\ the usual dictionary pointer
   70: AUser dpp		normal-dp dpp !
   71: 			\ the pointer to the current dictionary pointer
   72:                         \ ist reset to normal-dp on (doerror)
   73:                         \  (i.e. any throw caught by quit)
   74: AUser LastCFA
   75: AUser Last
   76: 
   77: User locals-size \ this is the current size of the locals stack
   78: 		 \ frame of the current word
   79: 
   80: 

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