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<h1> words/word.asm </h1> |
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<pre> |
; ( c -- addr ) Tools |
; R( -- ) |
; skip leading delimiter characters and parses TIB to the next delimiter. copy the word into PAD |
VE_WORD: |
.db $04, "word",0 |
.dw VE_HEAD |
.set VE_HEAD = VE_WORD |
XT_WORD: |
.dw DO_COLON |
PFA_WORD: |
.dw XT_TO_R ; ( -- ) |
.dw XT_SOURCE ; ( -- addr len) |
.dw XT_G_IN ; ( -- addr len >in) |
.dw XT_FETCH |
.dw XT_SLASHSTRING ; ( -- addr' len' ) |
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.dw XT_SWAP ; ( -- len' addr' ) |
.dw XT_OVER ; ( -- len' addr' len') |
.dw XT_R_FETCH ; ( -- len' addr' len' c) |
.dw XT_CSKIP ; ( -- len' addr'' len'') |
.dw XT_ROT ; ( -- addr'' len'' len') |
.dw XT_OVER ; ( -- addr'' len'' len' len'') |
.dw XT_MINUS ; ( -- addr'' len'' dlen) |
.dw XT_G_IN ; ( -- addr'' len'' dlen >in) |
.dw XT_PLUSSTORE ; ( -- addr'' len'') |
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.dw XT_R_FROM ; ( -- addr'' len'' c) |
.dw XT_CSCAN ; ( -- addr''' len''') |
.dw XT_DUP ; ( -- addr''' len''' len''') |
.dw XT_1PLUS ; |
.dw XT_G_IN |
.dw XT_PLUSSTORE ; ( -- addr''' len''') |
.dw XT_PAD ; ( -- addr''' len''' pad) |
.dw XT_OVER ; ( -- addr''' len''' pad len''') |
.dw XT_OVER ; ( -- addr''' len''' pad len''' pad) |
.dw XT_CSTORE ; ( -- addr''' len''' pad) |
.dw XT_1PLUS ; ( -- addr''' len''' pad+1) |
.dw XT_SWAP ; ( -- addr''' pad+1 len''') |
.dw XT_CMOVE_G ; ( --- ) |
.dw XT_PAD |
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.dw XT_ZERO ; append a zero byte. find/icompare _does_ need it |
.dw XT_PAD |
.dw XT_DUP |
.dw XT_CFETCH |
.dw XT_PLUS ; ( -- pad pad+len ) |
.dw XT_1PLUS |
.dw XT_CSTORE |
.dw XT_EXIT |
</pre> |
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