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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+ File Name: 11.10-1.js
+ ECMA Section: 11.10-1 Binary Bitwise Operators: &
+ Description:
+ Semantics
+
+ The production A : A @ B, where @ is one of the bitwise operators in the
+ productions &, ^, | , is evaluated as follows:
+
+ 1. Evaluate A.
+ 2. Call GetValue(Result(1)).
+ 3. Evaluate B.
+ 4. Call GetValue(Result(3)).
+ 5. Call ToInt32(Result(2)).
+ 6. Call ToInt32(Result(4)).
+ 7. Apply the bitwise operator @ to Result(5) and Result(6). The result is
+ a signed 32 bit integer.
+ 8. Return Result(7).
+
+ Author: christine@netscape.com
+ Date: 12 november 1997
+*/
+var SECTION = "11.10-1";
+var VERSION = "ECMA_1";
+startTest();
+
+writeHeaderToLog( SECTION + " Binary Bitwise Operators: &");
+
+var shiftexp = 0;
+var addexp = 0;
+
+// for ( shiftpow = 0; shiftpow < 33; shiftpow++ ) {
+for ( shiftpow = 0; shiftpow < 1; shiftpow++ ) {
+ shiftexp += Math.pow( 2, shiftpow );
+
+ for ( addpow = 0; addpow < 33; addpow++ ) {
+ addexp += Math.pow(2, addpow);
+
+ new TestCase( SECTION,
+ shiftexp + " & " + addexp,
+ And( shiftexp, addexp ),
+ shiftexp & addexp );
+ }
+}
+
+test();
+
+function ToInteger( n ) {
+ n = Number( n );
+ var sign = ( n < 0 ) ? -1 : 1;
+
+ if ( n != n ) {
+ return 0;
+ }
+ if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY ) {
+ return n;
+ }
+ return ( sign * Math.floor(Math.abs(n)) );
+}
+function ToInt32( n ) {
+ n = Number( n );
+ var sign = ( n < 0 ) ? -1 : 1;
+
+ if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
+ return 0;
+ }
+
+ n = (sign * Math.floor( Math.abs(n) )) % Math.pow(2,32);
+ n = ( n >= Math.pow(2,31) ) ? n - Math.pow(2,32) : n;
+
+ return ( n );
+}
+function ToUint32( n ) {
+ n = Number( n );
+ var sign = ( n < 0 ) ? -1 : 1;
+
+ if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
+ return 0;
+ }
+ n = sign * Math.floor( Math.abs(n) )
+
+ n = n % Math.pow(2,32);
+
+ if ( n < 0 ){
+ n += Math.pow(2,32);
+ }
+
+ return ( n );
+}
+function ToUint16( n ) {
+ var sign = ( n < 0 ) ? -1 : 1;
+
+ if ( Math.abs( n ) == 0 || Math.abs( n ) == Number.POSITIVE_INFINITY) {
+ return 0;
+ }
+
+ n = ( sign * Math.floor( Math.abs(n) ) ) % Math.pow(2,16);
+
+ if (n <0) {
+ n += Math.pow(2,16);
+ }
+
+ return ( n );
+}
+function Mask( b, n ) {
+ b = ToUint32BitString( b );
+ b = b.substring( b.length - n );
+ b = ToUint32Decimal( b );
+ return ( b );
+}
+function ToUint32BitString( n ) {
+ var b = "";
+ for ( p = 31; p >=0; p-- ) {
+ if ( n >= Math.pow(2,p) ) {
+ b += "1";
+ n -= Math.pow(2,p);
+ } else {
+ b += "0";
+ }
+ }
+ return b;
+}
+function ToInt32BitString( n ) {
+ var b = "";
+ var sign = ( n < 0 ) ? -1 : 1;
+
+ b += ( sign == 1 ) ? "0" : "1";
+
+ for ( p = 30; p >=0; p-- ) {
+ if ( (sign == 1 ) ? sign * n >= Math.pow(2,p) : sign * n > Math.pow(2,p) ) {
+ b += ( sign == 1 ) ? "1" : "0";
+ n -= sign * Math.pow( 2, p );
+ } else {
+ b += ( sign == 1 ) ? "0" : "1";
+ }
+ }
+
+ return b;
+}
+function ToInt32Decimal( bin ) {
+ var r = 0;
+ var sign;
+
+ if ( Number(bin.charAt(0)) == 0 ) {
+ sign = 1;
+ r = 0;
+ } else {
+ sign = -1;
+ r = -(Math.pow(2,31));
+ }
+
+ for ( var j = 0; j < 31; j++ ) {
+ r += Math.pow( 2, j ) * Number(bin.charAt(31-j));
+ }
+
+ return r;
+}
+function ToUint32Decimal( bin ) {
+ var r = 0;
+
+
+ for ( l = bin.length; l < 32; l++ ) {
+ bin = "0" + bin;
+ }
+
+ for ( j = 0; j < 31; j++ ) {
+ r += Math.pow( 2, j ) * Number(bin.charAt(31-j));
+
+ }
+
+ return r;
+}
+function And( s, a ) {
+ s = ToInt32( s );
+ a = ToInt32( a );
+
+ var bs = ToInt32BitString( s );
+ var ba = ToInt32BitString( a );
+
+ var result = "";
+
+ for ( var bit = 0; bit < bs.length; bit++ ) {
+ if ( bs.charAt(bit) == "1" && ba.charAt(bit) == "1" ) {
+ result += "1";
+ } else {
+ result += "0";
+ }
+ }
+ return ToInt32Decimal(result);
+}
+function Xor( s, a ) {
+ s = ToInt32( s );
+ a = ToInt32( a );
+
+ var bs = ToInt32BitString( s );
+ var ba = ToInt32BitString( a );
+
+ var result = "";
+
+ for ( var bit = 0; bit < bs.length; bit++ ) {
+ if ( (bs.charAt(bit) == "1" && ba.charAt(bit) == "0") ||
+ (bs.charAt(bit) == "0" && ba.charAt(bit) == "1")
+ ) {
+ result += "1";
+ } else {
+ result += "0";
+ }
+ }
+
+ return ToInt32Decimal(result);
+}
+function Or( s, a ) {
+ s = ToInt32( s );
+ a = ToInt32( a );
+
+ var bs = ToInt32BitString( s );
+ var ba = ToInt32BitString( a );
+
+ var result = "";
+
+ for ( var bit = 0; bit < bs.length; bit++ ) {
+ if ( bs.charAt(bit) == "1" || ba.charAt(bit) == "1" ) {
+ result += "1";
+ } else {
+ result += "0";
+ }
+ }
+
+ return ToInt32Decimal(result);
+}