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Amiga Format CD 41
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Amiga Format CD41 (1999-06)(Future Publishing)(GB)[!][issue 1999-07].iso
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-seriously_amiga-
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programming
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scm
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slib
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byte.scm
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1999-04-19
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708b
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16 lines
;;; "byte.scm" small integers, not necessarily chars.
(define (byte-ref str ind) (char->integer (string-ref str ind)))
(define (byte-set! str ind val) (string-set! str ind (integer->char val)))
(define (make-bytes len . opt)
(if (null? opt) (make-string len)
(make-string len (integer->char (car opt)))))
(define bytes-length string-length)
(define (write-byte byt . opt) (apply write-char (integer->char byt) opt))
(define (read-byte . opt)
(let ((c (apply read-char opt)))
(if (eof-object? c) c (char->integer c))))
(define (bytes . args) (list->bytes args))
(define (bytes->list bts) (map char->integer (string->list bts)))
(define (list->bytes lst) (list->string (map integer->char lst)))