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We currently have two options for assembly code output, selected by a checkbox in the application settings: always put labels on the same lines as the instruction or data operand, or split the labels onto their own line if they were wider than the label text field. This change adds a third option, which puts labels on their own line whenever possible. Assemblers don't generally allow this for variable assignment pseudo-ops like "foo = $1000", but it's accepted for most other situations. This is a cosmetic change to the output, and will not affect the generated code. The old true/false app setting will be disregarded. "Split if too long" will be used by default. Added test 20280-label-placement to exercise the "split whenever allowed" behavior. The "export" function has a similar option that has not been updated (for no particular reason other than laziness). Also, simplified the app settings GetEnum / SetEnum calls, which can infer the enumerated type from the arguments. This should not impact behavior.
109 lines
4.5 KiB
C#
109 lines
4.5 KiB
C#
/*
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* Copyright 2018 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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namespace CommonUtil {
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public static class Misc {
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/// <summary>
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/// Application identifier. This is an arbitrary string set by the application. It
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/// will be included in the crash dump.
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/// </summary>
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public static string AppIdent { get; set; } = "(app ident unset)";
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// Given a type, dump all namespaces found in the same assembly.
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// https://stackoverflow.com/a/1549216/294248
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public static void DumpNamespacesInAssembly(Type type) {
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Console.WriteLine("Assembly: " + type.Assembly.Location);
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Type[] typeList = type.Assembly.GetTypes();
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var namespaces = typeList.Select(t => t.Namespace).Distinct();
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foreach (string ns in namespaces) {
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Console.WriteLine(" " + ns);
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}
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}
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/// <summary>
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/// Writes an unhandled exception trace to a crash file.
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/// </summary>
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/// <remarks>
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/// Usage:
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/// <code>AppDomain.CurrentDomain.UnhandledException +=
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/// new UnhandledExceptionEventHandler(CommonUtil.Misc.CrashReporter);</code>
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///
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/// Thanks: <see href="https://stackoverflow.com/a/21308327/294248"/>.
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/// </remarks>
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public static void CrashReporter(object sender, UnhandledExceptionEventArgs e) {
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const string CRASH_PATH = @"CrashLog.txt";
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Exception ex = (Exception)e.ExceptionObject;
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Debug.WriteLine("CRASHING (term=" + e.IsTerminating + "): " + ex);
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try {
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using (StreamWriter writer = new StreamWriter(CRASH_PATH, true)) {
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writer.WriteLine("*** " + DateTime.Now.ToLocalTime() + " ***");
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writer.WriteLine(" App: " + AppIdent);
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writer.WriteLine(" OS: " +
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System.Runtime.InteropServices.RuntimeInformation.OSDescription);
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writer.WriteLine(string.Empty);
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while (ex != null) {
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writer.WriteLine(ex.GetType().FullName + ": " + ex.Message);
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writer.WriteLine("Trace:");
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writer.WriteLine(ex.StackTrace);
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writer.WriteLine(string.Empty);
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ex = ex.InnerException;
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}
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}
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} catch {
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// damn it
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Debug.WriteLine("Crashed while crashing");
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}
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}
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/// <summary>
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/// Clears an array to a specific value, similar to memset() in libc. This is much
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/// faster than setting array elements individually.
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/// </summary>
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/// <remarks>
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/// From <see href="https://stackoverflow.com/a/18659408/294248"/>.
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///
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/// Invokes Array.Copy() on overlapping elements. Other approaches involve using
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/// Buffer.BlockCopy or unsafe code. Apparently .NET Core has an Array.Fill(), but
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/// that doesn't exist in .NET Framework.
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///
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/// We could get off the line a little faster by setting the first 16 or so elements in
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/// a loop, bailing out if we finish early, so we don't start calling Array.Copy() until
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/// it's actually faster to do so. I don't expect to be calling this often or for
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/// small arrays though.
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/// </remarks>
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/// <typeparam name="T">Array element type.</typeparam>
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/// <param name="array">Array reference.</param>
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/// <param name="elem">Initialization value.</param>
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public static void Memset<T>(T[] array, T elem) {
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//Array.Fill(array, elem);
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int length = array.Length;
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if (length == 0) return;
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array[0] = elem;
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int count;
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for (count = 1; count <= length / 2; count *= 2)
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Array.Copy(array, 0, array, count, count);
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Array.Copy(array, 0, array, count, length - count);
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}
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}
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}
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