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| <h1> words/char-skip.asm </h1> |
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| ; ( addr1 n1 c -- addr2 n2 ) String |
| ; R( -- ) |
| ; skips leading occurancies in string at addr1/n1 leaving addr2/n2 pointing to the 1st non-c character |
| VE_CSKIP: |
| .db $05, "cskip" |
| .dw VE_HEAD |
| .set VE_HEAD = VE_CSKIP |
| XT_CSKIP: |
| .dw DO_COLON |
| PFA_CSKIP: |
| .dw XT_TO_R ; ( -- addr1 n1 ) |
| PFA_CSKIP1: |
| .dw XT_DUP ; ( -- addr' n' n' ) |
| .dw XT_NOTEQUALZERO |
| .dw XT_DOCONDBRANCH ; ( -- addr' n') |
| .dw PFA_CSKIP2 |
| .dw XT_OVER ; ( -- addr' n' addr' ) |
| .dw XT_CFETCH ; ( -- addr' n' c' ) |
| .dw XT_R_FETCH ; ( -- addr' n' c' c ) |
| .dw XT_EQUAL ; ( -- addr' n' f ) |
| .dw XT_DOCONDBRANCH ; ( -- addr' n') |
| .dw PFA_CSKIP2 |
| .dw XT_DOLITERAL |
| .dw 1 |
| .dw XT_SLASHSTRING |
| .dw XT_DOBRANCH |
| .dw PFA_CSKIP1 |
| PFA_CSKIP2: |
| .dw XT_R_FROM |
| .dw XT_DROP ; ( -- addr2 n2) |
| .dw XT_EXIT |
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