softcore.fr revision 51786
1\ ** ficl/softwords/softcore.fr 2\ ** FICL soft extensions 3\ ** John Sadler (john_sadler@alum.mit.edu) 4\ ** September, 1998 5 6\ $FreeBSD: head/sys/boot/ficl/softwords/softcore.fr 51786 1999-09-29 04:43:16Z dcs $ 7 8\ ** Ficl USER variables 9\ ** See words.c for primitive def'n of USER 10\ #if FICL_WANT_USER 11 12variable nUser 0 nUser ! 13: user \ name ( -- ) 14 nUser dup @ user 1 swap +! ; 15 16\ #endif 17 18\ ** ficl extras 19\ EMPTY cleans the parameter stack 20: empty ( xn..x1 -- ) depth 0 ?do drop loop ; 21\ CELL- undoes CELL+ 22: cell- ( addr -- addr ) [ 1 cells ] literal - ; 23: -rot ( a b c -- c a b ) 2 -roll ; 24 25\ ** CORE 26: abs ( x -- x ) 27 dup 0< if negate endif ; 28decimal 32 constant bl 29 30: space ( -- ) bl emit ; 31 32: spaces ( n -- ) 0 ?do space loop ; 33 34: abort" 35 postpone if 36 postpone ." 37 postpone cr 38 -2 39 postpone literal 40 postpone throw 41 postpone endif 42; immediate 43 44 45\ ** CORE EXT 460 constant false 47-1 constant true 48: <> = invert ; 49: 0<> 0= invert ; 50: compile, , ; 51: erase ( addr u -- ) 0 fill ; 52: nip ( y x -- x ) swap drop ; 53: tuck ( y x -- x y x) swap over ; 54: within ( test low high -- flag ) over - >r - r> u< ; 55 56 57\ ** LOCAL EXT word set 58\ #if FICL_WANT_LOCALS 59: locals| ( name...name | -- ) 60 begin 61 bl word count 62 dup 0= abort" where's the delimiter??" 63 over c@ 64 [char] | - over 1- or 65 while 66 (local) 67 repeat 2drop 0 0 (local) 68; immediate 69 70: local ( name -- ) bl word count (local) ; immediate 71 72: end-locals ( -- ) 0 0 (local) ; immediate 73 74\ #endif 75 76\ ** TOOLS word set... 77: ? ( addr -- ) @ . ; 78: dump ( addr u -- ) 79 0 ?do 80 dup c@ . 1+ 81 i 7 and 7 = if cr endif 82 loop drop 83; 84 85\ ** SEARCH+EXT words and ficl helpers 86\ 87: wordlist ( -- ) 88 1 ficl-wordlist ; 89 90\ DO_VOCABULARY handles the DOES> part of a VOCABULARY 91\ When executed, new voc replaces top of search stack 92: do-vocabulary ( -- ) 93 does> @ search> drop >search ; 94 95: vocabulary ( name -- ) 96 wordlist create , do-vocabulary ; 97 98: ficl-vocabulary ( nBuckets name -- ) 99 ficl-wordlist create , do-vocabulary ; 100 101\ ALSO dups the search stack... 102: also ( -- ) 103 search> dup >search >search ; 104 105\ FORTH drops the top of the search stack and pushes FORTH-WORDLIST 106: forth ( -- ) 107 search> drop 108 forth-wordlist >search ; 109 110\ ONLY sets the search order to a default state 111: only ( -- ) 112 -1 set-order ; 113 114\ ORDER displays the compile wid and the search order list 115: order ( -- ) 116 ." Search: " 117 get-order 0 ?do x. loop cr 118 ." Compile: " get-current x. cr ; 119 120\ PREVIOUS drops the search order stack 121: previous ( -- ) search> drop ; 122 123\ FICL-SET-CURRENT sets the compile wordlist and pushes the previous value 124: ficl-set-current ( wid -- old-wid ) 125 get-current swap set-current ; 126 127wordlist constant hidden 128: hide hidden dup >search ficl-set-current ; 129 130\ ** E N D S O F T C O R E . F R 131 132