diff --git a/apps/forth/dict.asm b/apps/forth/dict.asm index 581b9d2..ca4f22a 100644 --- a/apps/forth/dict.asm +++ b/apps/forth/dict.asm @@ -449,44 +449,57 @@ LITS: ld (HERE), de jp next - .db "'" - .fill 6 + .db "(find)" + .fill 1 .dw LITS .db 0 -FIND: +FIND_: .dw nativeWord call readword call find jr z, .found ; not found + push hl ld de, 0 -.found: push de jp next +.found: + push de + ld de, 1 + push de + jp next + + .db "'" + .fill 6 + .dw FIND_ + .db 0 +FIND: + .dw compiledWord + .dw FIND_ + .dw CSKIP + .dw FINDERR + .dw EXIT .db "[']" .fill 4 .dw FIND .db 0b01 ; IMMEDIATE FINDI: - .dw nativeWord - call readword - call find - jr nz, .notfound - ld hl, (HERE) - push de ; --> lvl 1 - ld de, NUMBER - call DEinHL - pop de ; <-- lvl 1 - call DEinHL - ld (HERE), hl - jp next -.notfound: - ld hl, .msg - call printstr - jp abort -.msg: + .dw compiledWord + .dw FIND_ + .dw CSKIP + .dw FINDERR + .dw LITN + .dw EXIT + + .db 0b10 ; UNWORD +FINDERR: + .dw compiledWord + .dw DROP ; Drop str addr, we don't use it + .dw LIT .db "word not found", 0 + .dw PRINT + .dw ABORT ; ( -- c ) .db "KEY" diff --git a/apps/forth/dictionary.txt b/apps/forth/dictionary.txt index a556349..7aa130f 100644 --- a/apps/forth/dictionary.txt +++ b/apps/forth/dictionary.txt @@ -32,10 +32,12 @@ directly, but as part of another word. "*I*" in description indicates an IMMEDIATE word. *** Defining words *** +(find) x -- a f Read word x and find it in dict. If found, f=1 and + a = wordref. If not found, f=0 and a = string addr. : x ... -- Define a new word ; R:I -- Exit a colon definition , n -- Write n in HERE and advance it. -' x -- a Push addr of word x to a. If not found, push 0 +' x -- a Push addr of word x to a. If not found, aborts ['] x -- *I* Like "'", but spits the addr as a number literal. If not found, aborts. ( -- *I* Comment. Ignore rest of line until ")" is read.