DataMuseum.dk

top - metrics - download

    Length: 3676 (0xe5c)
    Types: TextFile
    Names: »boot.scm.117«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─⟦this⟧ »EUUGD11/gnu-31mar87/scheme/scm/boot.scm.117« 

TextFile

;;; -*-Scheme-*-
;;;
;;;	Copyright (c) 1984 Massachusetts Institute of Technology
;;;
;;;	This material was developed by the Scheme project at the
;;;	Massachusetts Institute of Technology, Department of
;;;	Electrical Engineering and Computer Science.  Permission to
;;;	copy this software, to redistribute it, and to use it for any
;;;	purpose is granted, subject to the following restrictions and
;;;	understandings.
;;;
;;;	1. Any copy made of this software must include this copyright
;;;	notice in full.
;;;
;;;	2. Users of this software agree to make their best efforts (a)
;;;	to return to the MIT Scheme project any improvements or
;;;	extensions that they make, so that these may be included in
;;;	future releases; and (b) to inform MIT of noteworthy uses of
;;;	this software.
;;;
;;;	3.  All materials developed as a consequence of the use of
;;;	this software shall duly acknowledge such use, in accordance
;;;	with the usual standards of acknowledging credit in academic
;;;	research.
;;;
;;;	4. MIT has made no warrantee or representation that the
;;;	operation of this software will be error-free, and MIT is
;;;	under no obligation to provide any services, by way of
;;;	maintenance, update, or otherwise.
;;;
;;;	5.  In conjunction with products arising from the use of this
;;;	material, there shall be no use of the name of the
;;;	Massachusetts Institute of Technology nor of any adaptation
;;;	thereof in any advertising, promotional, or sales literature
;;;	without prior written consent from MIT in each case.
;;;

;;;; Boot Utilities

(declare (usual-integrations))

;;; The utilities in this file are the first thing loaded into the
;;; world after the type tables.  They can't depend on anything else
;;; except those tables.
\f


;;;; Primitive Operators

(let-syntax ((define-global-primitives
	      (macro names
		`(SEQUENCE
		  ,@(mapcar (lambda (name)
			      `(DEFINE ,name ,(make-primitive-procedure name)))
			    names)))))
  (define-global-primitives
   APPLY SCODE-EVAL FORCE WITH-THREADED-CONTINUATION
   SET-INTERRUPT-ENABLES! WITH-INTERRUPT-MASK
   GET-FIXED-OBJECTS-VECTOR WITH-HISTORY-DISABLED
   PRIMITIVE-PROCEDURE-ARITY NOT FALSE?

   ;; Environment
   LEXICAL-REFERENCE LEXICAL-ASSIGNMENT LOCAL-ASSIGNMENT
   LEXICAL-UNASSIGNED? LEXICAL-UNBOUND? LEXICAL-UNREFERENCEABLE?

   ;; Pointers
   EQ?
   PRIMITIVE-SET-TYPE MAKE-NON-POINTER-OBJECT
   PRIMITIVE-TYPE? PRIMITIVE-TYPE PRIMITIVE-DATUM
   OBJECT-DANGEROUS? MAKE-OBJECT-SAFE MAKE-OBJECT-DANGEROUS

   ;; System Compound Datatypes
   SYSTEM-PAIR-CONS SYSTEM-PAIR?
   SYSTEM-PAIR-CAR SYSTEM-PAIR-SET-CAR!
   SYSTEM-PAIR-CDR SYSTEM-PAIR-SET-CDR!

   SYSTEM-HUNK3-CXR0 SYSTEM-HUNK3-SET-CXR0!
   SYSTEM-HUNK3-CXR1 SYSTEM-HUNK3-SET-CXR1!
   SYSTEM-HUNK3-CXR2 SYSTEM-HUNK3-SET-CXR2!

   SYSTEM-LIST-TO-VECTOR SYSTEM-SUBVECTOR-TO-LIST SYSTEM-VECTOR?
   SYSTEM-VECTOR-SIZE SYSTEM-VECTOR-REF SYSTEM-VECTOR-SET!
   )
;;; end of DEFINE-GLOBAL-PRIMITIVES scope.
)
\f


;;;; Potpourri

(define *the-non-printing-object* '(*THE-NON-PRINTING-OBJECT*))
(define (identity-procedure x) x)

(define (without-interrupts thunk)
  (with-interrupt-mask INTERRUPT-MASK-GC-OK
    (lambda (old-mask) (thunk))))

(define (apply* f . args)
  (apply f
	 (if (null? args)
	     '()
	     (let loop ((first-element (car args))
			(rest-elements (cdr args)))
	       (if (null? rest-elements)
		   first-element
		   (cons first-element
			 (loop (car rest-elements)
			       (cdr rest-elements))))))))

(define system-hunk3-cons
  (let ((hunk3-cons (make-primitive-procedure 'HUNK3-CONS)))
    (named-lambda (system-hunk3-cons type cxr0 cxr1 cxr2)
      (primitive-set-type type (hunk3-cons cxr0 cxr1 cxr2)))))