;==================================================================== ; ; scmhob.scm defines several procedures recognized ; by the hobbit compiler as primitives, but not defined in scm or slib. ; ; Use scmhob when running code (meant for compilation by ; hobbit) under interpreter. Never compile scmhob.scm! ; ; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997 Tanel Tammet ; tammet@cs.chalmers.se ; ; version 5x ; ; 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 1, 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., 59 Temple Place, Suite 330, Boston, MA 02111, USA. ; ;==================================================================== ; bitwise operations: logical shift left and logical shift right (define (logsleft x y) (ash x y)) (define (logsright x y) (ash x (- 0 y))) (define logical:logand logand) (define logical:logior logior) (define logical:logxor logxor) (define logical:lognot lognot) ; immediate-integer (30-bit signed int) versions of arithmetic primitives: (define %eqv? eqv?) (define %zero? zero?) (define %negative? negative?) (define %positive? positive?) (define %number? number?) (define %= =) (define %< <) (define %> >) (define %<= <=) (define %>= >=) (define %+ +) (define %- -) (define %* *) (define %/ /)