\ VARS.FS Kernal variables
hex \ everything now hex! 11may93jaw
\ important constants 17dec92py
\ dpANS6 (sect 3.1.3.1) says
\ "a true flag ... [is] a single-cell value with all bits set"
\ better definition: 0 0= constant true ( no dependence on 2's compl)
-1 Constant true \ see starts looking for
\ primitives after this word!
0 Constant false
1 cells Constant cell
20 Constant bl
FF Constant /line
40 Constant c/l
10 Constant l/s
400 Constant chars/block
\ that's enough so long
\ User variables 13feb93py
\ doesn't produce real user variables now, but normal variables
Create main-task 100 cells allot
main-task tup H ! minimal
Variable udp
AUser next-task main-task next-task !
AUser prev-task main-task prev-task !
AUser save-task 0 save-task !
AUser s0
AUser r0
AUser f0
AUser l0
AUser handler
\ AUser output
\ AUser input
AUser errorhandler
AUser "error 0 "error !
User >tib
User #tib
User >in 0 >in !
User blk 0 blk !
User loadfile 0 loadfile !
2User loadfilename 0 0 loadfilename 2!
User loadline \ number of the currently interpreted
\ (in TIB) line if the interpretation
\ is in a textfile
\ the first line is 1
2User linestart \ starting file postition of
\ the current interpreted line (in TIB)
User base A base !
User dpl -1 dpl !
User state 0 state !
AUser normal-dp \ the usual dictionary pointer
AUser dpp normal-dp dpp !
\ the pointer to the current dictionary pointer
\ ist reset to normal-dp on (doerror)
\ (i.e. any throw caught by quit)
AUser LastCFA
AUser Last
User locals-size \ this is the current size of the locals stack
\ frame of the current word
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