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782a82eed1
* module/rnrs/bytevector.scm (rnrs): * libguile/bytevectors.h: * libguile/bytevectors.c (scm_uniform_array_to_bytevector): New function. * libguile/unif.h: * libguile/unif.c (scm_from_contiguous_typed_array): New function. * libguile/vm-i-loader.c (load-array): New instruction, for loading byte data into uniform vectors. Currently it copies out the data, though in the future we could avoid that. * module/language/assembly.scm (align-code): New exported function, aligns code on some boundary. (align-program): Use align-code. * module/language/assembly/compile-bytecode.scm (write-bytecode): Support the load-array instruction. * module/language/glil/compile-assembly.scm (dump-object): Dump uniform arrays. Neat :)
85 lines
3.2 KiB
Scheme
85 lines
3.2 KiB
Scheme
;;;; bytevector.scm --- R6RS bytevector API
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;;;; Copyright (C) 2009 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 2.1 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;; Author: Ludovic Courtès <ludo@gnu.org>
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;;; Commentary:
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;;;
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;;; A "bytevector" is a raw bit string. This module provides procedures to
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;;; manipulate bytevectors and interpret their contents in a number of ways:
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;;; bytevector contents can be accessed as signed or unsigned integer of
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;;; various sizes and endianness, as IEEE-754 floating point numbers, or as
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;;; strings. It is a useful tool to decode binary data.
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;;;
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;;; Code:
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(define-module (rnrs bytevector)
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:export-syntax (endianness)
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:export (native-endianness bytevector?
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make-bytevector bytevector-length bytevector=? bytevector-fill!
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bytevector-copy! bytevector-copy
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uniform-array->bytevector
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bytevector-u8-ref bytevector-s8-ref
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bytevector-u8-set! bytevector-s8-set! bytevector->u8-list
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u8-list->bytevector
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bytevector-uint-ref bytevector-uint-set!
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bytevector-sint-ref bytevector-sint-set!
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bytevector->sint-list bytevector->uint-list
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uint-list->bytevector sint-list->bytevector
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bytevector-u16-ref bytevector-s16-ref
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bytevector-u16-set! bytevector-s16-set!
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bytevector-u16-native-ref bytevector-s16-native-ref
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bytevector-u16-native-set! bytevector-s16-native-set!
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bytevector-u32-ref bytevector-s32-ref
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bytevector-u32-set! bytevector-s32-set!
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bytevector-u32-native-ref bytevector-s32-native-ref
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bytevector-u32-native-set! bytevector-s32-native-set!
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bytevector-u64-ref bytevector-s64-ref
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bytevector-u64-set! bytevector-s64-set!
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bytevector-u64-native-ref bytevector-s64-native-ref
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bytevector-u64-native-set! bytevector-s64-native-set!
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bytevector-ieee-single-ref
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bytevector-ieee-single-set!
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bytevector-ieee-single-native-ref
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bytevector-ieee-single-native-set!
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bytevector-ieee-double-ref
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bytevector-ieee-double-set!
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bytevector-ieee-double-native-ref
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bytevector-ieee-double-native-set!
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string->utf8 string->utf16 string->utf32
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utf8->string utf16->string utf32->string))
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(load-extension "libguile" "scm_init_bytevectors")
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(define-macro (endianness sym)
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(if (memq sym '(big little))
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`(quote ,sym)
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(error "unsupported endianness" sym)))
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;;; Local Variables:
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;;; coding: latin-1
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;;; End:
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;;; bytevector.scm ends here
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