32 lines
437 B
NASM
32 lines
437 B
NASM
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; IN DS:SI offset of needle
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; ES:DI offset to haystack table
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; OUT ES:DI found offset in table
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; ZF zero flag set if match
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string_search_token:
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push bp
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push cx
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.loop:
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cmp BYTE [es:di], 0
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je .fail
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push si
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push di
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mov bp, di
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xor ch, ch
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mov cl, [es:di]
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inc di
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add bp, cx
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inc bp
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repe cmpsb
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pop di
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pop si
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je .end
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mov di, bp
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jmp .loop
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.fail:
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stc
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.end:
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pop cx
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pop cx
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ret
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