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(
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; we don't have strings yet 👌
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(ld @stdout 'P') (ld @stdout 'r') (ld @stdout 'e') (ld @stdout 's') (ld @stdout 's') (ld @stdout ' ')
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(ld @stdout 'q') (ld @stdout ' ')
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(ld @stdout 't') (ld @stdout 'o') (ld @stdout ' ')
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(ld @stdout 'q') (ld @stdout 'u') (ld @stdout 'i') (ld @stdout 't')
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(ld @stdout '…') (ld @stdout ' ')
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(:loop)
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(ld r0 @stdin)
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; exit by pressing 'q'
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(cmp r0 'q'
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(=? (ld @stdout '\n')
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(halt)))
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; uppercase ASCII
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(cmp r0 'a' (<? (j :badchar)))
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(cmp r0 'z' (>? (j :badchar)))
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(sub r0 ' ')
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(ld @stdout r0)
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(j :loop)
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(:badchar)
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(ld @stdout '🐈') ; show a kitty if not ASCII
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(j :loop)
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)
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