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- #| -*-Scheme-*-
-
- $Id: asutl.scm,v 1.3 1999/01/02 06:06:43 cph Exp $
-
- Copyright (c) 1992, 1999 Massachusetts Institute of Technology
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or (at
- your option) any later version.
-
- This program 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
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- |#
-
- ;;;; Assembler Utilities
- ;;; package: (compiler)
-
- (declare (usual-integrations))
-
- (define-integrable (back-end:= x y)
- (= x y))
-
- (define-integrable (back-end:+ x y)
- (+ x y))
-
- (define-integrable (back-end:- x y)
- (- x y))
-
- (define-integrable (back-end:* x y)
- (* x y))
-
- (define-integrable (back-end:quotient x y)
- (quotient x y))
-
- (define-integrable (back-end:expt x y)
- (expt x y))
-
- (define-integrable (back-end:< x y)
- (< x y))
-
- (define make-non-pointer-literal
- (let ((type-maximum (expt 2 scheme-type-width))
- (type-scale-factor (expt 2 scheme-datum-width)))
- (lambda (type datum)
- (if (not (and (exact-nonnegative-integer? type)
- (< type type-maximum)))
- (error "non-pointer type out of range" type))
- (if (not (and (exact-nonnegative-integer? datum)
- (< datum type-scale-factor)))
- (error "non-pointer datum out of range" datum))
- (+ (* type type-scale-factor) datum))))