// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics // Copyright (C) 2018 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-atomics.and description: > Atomics.and returns the value that existed at the index prior to the operation. info: | Atomics.and( typedArray, index, value ) 1. Return ? AtomicReadModifyWrite(typedArray, index, value, and). AtomicReadModifyWrite( typedArray, index, value, op ) ... 9. Return GetModifySetValueInBuffer(buffer, indexedPosition, elementType, v, op). GetModifySetValueInBuffer( arrayBuffer, byteIndex, type, value, op [ , isLittleEndian ] ) ... 16. Return RawBytesToNumber(type, rawBytesRead, isLittleEndian). features: [Atomics, SharedArrayBuffer, TypedArray] ---*/ const i32a = new Int32Array( new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) ); const a = 0b00000001000000001000000010000001; const b = 0b00000001111111111000000011111111; const c = 0b00000001000000001000000010000001; i32a[0] = a; assert.sameValue( Atomics.and(i32a, 0, b), a, 'Atomics.and(i32a, 0, b) returns the value of `a` (0b00000001000000001000000010000001)' ); assert.sameValue(i32a[0], c, 'The value of i32a[0] equals the value of `c` (0b00000001000000001000000010000001)'); reportCompare(0, 0);