diff --git a/module/language/objcode.scm b/module/language/objcode.scm deleted file mode 100644 index d8bcda879..000000000 --- a/module/language/objcode.scm +++ /dev/null @@ -1,51 +0,0 @@ -;;; Guile Virtual Machine Object Code - -;; Copyright (C) 2001 Free Software Foundation, Inc. - -;;;; This library is free software; you can redistribute it and/or -;;;; modify it under the terms of the GNU Lesser General Public -;;;; License as published by the Free Software Foundation; either -;;;; version 3 of the License, or (at your option) any later version. -;;;; -;;;; This library is distributed in the hope that it will be useful, -;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -;;;; Lesser General Public License for more details. -;;;; -;;;; You should have received a copy of the GNU Lesser General Public -;;;; License along with this library; if not, write to the Free Software -;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - -;;; Code: - -(define-module (language objcode) - #:export (encode-length decode-length)) - - -;;; -;;; Variable-length interface -;;; - -;; NOTE: decoded in vm_fetch_length in vm.c as well. - -(define (encode-length len) - (cond ((< len 254) (u8vector len)) - ((< len (* 256 256)) - (u8vector 254 (quotient len 256) (modulo len 256))) - ((< len most-positive-fixnum) - (u8vector 255 - (quotient len (* 256 256 256)) - (modulo (quotient len (* 256 256)) 256) - (modulo (quotient len 256) 256) - (modulo len 256))) - (else (error "Too long code length:" len)))) - -(define (decode-length pop) - (let ((x (pop))) - (cond ((< x 254) x) - ((= x 254) (+ (ash x 8) (pop))) - (else - (let* ((b2 (pop)) - (b3 (pop)) - (b4 (pop))) - (+ (ash x 24) (ash b2 16) (ash b3 8) b4))))))