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path: root/lib/asm-docs/amd64.ts
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// Copyright (c) 2021, Compiler Explorer Authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

import {AssemblyInstructionInfo, BaseAssemblyDocumentationProvider} from './base.js';
import {getAsmOpcode} from './generated/asm-docs-amd64.js';

export class Amd64DocumentationProvider extends BaseAssemblyDocumentationProvider {
    // abs is included as a suffix here for its use in movabs
    // https://github.com/compiler-explorer/compiler-explorer/issues/4481
    private static readonly ATT_SUFFIX_REMOVER = /^([a-z]+)(?:[blqw]|abs)$/i;
    public static get key() {
        return 'amd64';
    }
    public override getInstructionInformation(instruction: string): AssemblyInstructionInfo | null {
        // Try both raw opcode and with AT&T suffix removed
        let info = getAsmOpcode(instruction);
        if (!info) {
            const alternativeInstruction = Amd64DocumentationProvider.ATT_SUFFIX_REMOVER.exec(instruction);
            if (alternativeInstruction) {
                info = getAsmOpcode(alternativeInstruction[1]);
            }
        }
        return info || null;
    }
}