/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla Communicator client code, released * March 31, 1998. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /* ** File: jslong.h ** Description: Portable access to 64 bit numerics ** ** Long-long (64-bit signed integer type) support. Some C compilers ** don't support 64 bit integers yet, so we use these macros to ** support both machines that do and don't. **/ #ifndef jslong_h___ #define jslong_h___ #include "jstypes.h" JS_BEGIN_EXTERN_C #define JSLL_INIT(hi, lo) ((((JSInt64)(hi)) << 32) + (JSInt64)(lo)) /*********************************************************************** ** MACROS: JSLL_* ** DESCRIPTION: ** The following macros define portable access to the 64 bit ** math facilities. ** ***********************************************************************/ /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_IS_ZERO Test for zero ** JSLL_EQ Test for equality ** JSLL_NE Test for inequality ** JSLL_GE_ZERO Test for zero or positive ** JSLL_CMP Compare two values ***********************************************************************/ #define JSLL_IS_ZERO(a) ((a) == 0) #define JSLL_EQ(a, b) ((a) == (b)) #define JSLL_NE(a, b) ((a) != (b)) #define JSLL_GE_ZERO(a) ((a) >= 0) #define JSLL_CMP(a, op, b) ((JSInt64)(a) op (JSInt64)(b)) #define JSLL_UCMP(a, op, b) ((JSUint64)(a) op (JSUint64)(b)) /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_AND Logical and ** JSLL_OR Logical or ** JSLL_XOR Logical exclusion ** JSLL_OR2 A disgusting deviation ** JSLL_NOT Negation (one's compliment) ***********************************************************************/ #define JSLL_AND(r, a, b) ((r) = (a) & (b)) #define JSLL_OR(r, a, b) ((r) = (a) | (b)) #define JSLL_XOR(r, a, b) ((r) = (a) ^ (b)) #define JSLL_OR2(r, a) ((r) = (r) | (a)) #define JSLL_NOT(r, a) ((r) = ~(a)) /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_NEG Negation (two's compliment) ** JSLL_ADD Summation (two's compliment) ** JSLL_SUB Difference (two's compliment) ***********************************************************************/ #define JSLL_NEG(r, a) ((r) = -(a)) #define JSLL_ADD(r, a, b) ((r) = (a) + (b)) #define JSLL_SUB(r, a, b) ((r) = (a) - (b)) /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_MUL Product (two's compliment) ** JSLL_DIV Quotient (two's compliment) ** JSLL_MOD Modulus (two's compliment) ***********************************************************************/ #define JSLL_MUL(r, a, b) ((r) = (a) * (b)) #define JSLL_DIV(r, a, b) ((r) = (a) / (b)) #define JSLL_MOD(r, a, b) ((r) = (a) % (b)) /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_SHL Shift left [0..64] bits ** JSLL_SHR Shift right [0..64] bits with sign extension ** JSLL_USHR Unsigned shift right [0..64] bits ** JSLL_ISHL Signed shift left [0..64] bits ***********************************************************************/ #define JSLL_SHL(r, a, b) ((r) = (JSInt64)(a) << (b)) #define JSLL_SHR(r, a, b) ((r) = (JSInt64)(a) >> (b)) #define JSLL_USHR(r, a, b) ((r) = (JSUint64)(a) >> (b)) #define JSLL_ISHL(r, a, b) ((r) = (JSInt64)(a) << (b)) /*********************************************************************** ** MACROS: JSLL_ ** ** JSLL_L2I Convert to signed 32 bit ** JSLL_L2UI Convert to unsigned 32 bit ** JSLL_L2F Convert to floating point ** JSLL_L2D Convert to floating point ** JSLL_I2L Convert signed to 64 bit ** JSLL_UI2L Convert unsigned to 64 bit ** JSLL_F2L Convert float to 64 bit ** JSLL_D2L Convert float to 64 bit ***********************************************************************/ #define JSLL_L2I(i, l) ((i) = (JSInt32)(l)) #define JSLL_L2UI(ui, l) ((ui) = (JSUint32)(l)) #define JSLL_L2F(f, l) ((f) = (JSFloat64)(l)) #define JSLL_L2D(d, l) ((d) = (JSFloat64)(l)) #define JSLL_I2L(l, i) ((l) = (JSInt64)(i)) #define JSLL_UI2L(l, ui) ((l) = (JSInt64)(ui)) #define JSLL_F2L(l, f) ((l) = (JSInt64)(f)) #define JSLL_D2L(l, d) ((l) = (JSInt64)(d)) /*********************************************************************** ** MACROS: JSLL_UDIVMOD ** DESCRIPTION: ** Produce both a quotient and a remainder given an unsigned ** INPUTS: JSUint64 a: The dividend of the operation ** JSUint64 b: The quotient of the operation ** OUTPUTS: JSUint64 *qp: pointer to quotient ** JSUint64 *rp: pointer to remainder ***********************************************************************/ #define JSLL_UDIVMOD(qp, rp, a, b) \ (*(qp) = ((JSUint64)(a) / (b)), \ *(rp) = ((JSUint64)(a) % (b))) JS_END_EXTERN_C #endif /* jslong_h___ */