mirror of
https://github.com/fadden/6502bench.git
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17af7efbbb
The disassembled lines are now shown in the custom-styled list view. The DisplayList isn't being kept up to date on edits, but since we can't edit anything yet that's not too limiting. Pulled more code over, including the mostly-GUI-agnostic bits of the source generation and assembler execution code.
1184 lines
53 KiB
C#
1184 lines
53 KiB
C#
/*
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* Copyright 2019 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.Collections.Generic;
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using System.Diagnostics;
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using System.Windows.Media;
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using System.Text;
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using Asm65;
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using FormattedParts = SourceGenWPF.DisplayList.FormattedParts;
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namespace SourceGenWPF {
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/// <summary>
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/// Converts file data and Anattrib contents into a series of strings and format metadata.
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/// </summary>
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public class LineListGen {
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/// <summary>
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/// List of display lines.
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/// </summary>
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private List<Line> mLineList;
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/// <summary>
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/// List of formatted parts to be presented to the user. This has one entry per line.
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/// </summary>
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/// <remarks>
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/// Separating FormattedParts out of Line seems odd at first, but we need changes to
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/// DisplayList to cause events in XAML. I'm thinking the artificial separation of
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/// Line from the formatted data holder may make future ports easier.
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/// </remarks>
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private DisplayList mDisplayList;
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/// <summary>
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/// Project that contains the data we're formatting, notably the FileData and
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/// Anattribs arrays.
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/// </summary>
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private DisasmProject mProject;
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/// <summary>
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/// Code/data formatter.
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/// </summary>
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private Formatter mFormatter;
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/// <summary>
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/// If set, prepend cycle counts to EOL comments.
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/// </summary>
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private bool mShowCycleCounts;
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/// <summary>
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/// Names for pseudo-ops.
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/// </summary>
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private PseudoOp.PseudoOpNames mPseudoOpNames;
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/// <summary>
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/// One of these per line of output in the display. It should be possible to draw
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/// all of the output without needing to refer back to the project data. (Currently
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/// making an exception for some selection-dependent field highlighting.)
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///
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/// Base fields are immutable, but the Parts property is set after creation.
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/// </summary>
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public class Line {
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// Extremely-negative offset value ensures it's at the very top.
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public const int HEADER_COMMENT_OFFSET = int.MinValue + 1;
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[FlagsAttribute]
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public enum Type {
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Unclassified = 0,
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// Primary functional items.
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Code = 1 << 0,
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Data = 1 << 1, // includes inline data
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CodeOrData = (Code | Data),
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// Decorative items, added by user or formatter.
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LongComment = 1 << 2,
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Note = 1 << 3,
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Blank = 1 << 4,
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// Assembler directives.
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OrgDirective = 1 << 5,
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EquDirective = 1 << 6,
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RegWidthDirective = 1 << 7,
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}
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/// <summary>
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/// Line type.
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/// </summary>
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public Type LineType { get; private set; }
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/// <summary>
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/// Numeric offset value. Used to map a line item to the Anattrib. Note this is
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/// set for all lines, and is the same for all lines in a multi-line sequence,
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/// e.g. every line in a long comment has the file offset with which it is associated.
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/// </summary>
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public int FileOffset { get; private set; }
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/// <summary>
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/// Number of offsets this line covers. Will be > 0 for code and data, zero for
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/// everything else. The same value is used for all lines in a multi-line sequence.
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/// </summary>
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public int OffsetSpan { get; private set; }
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/// <summary>
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/// For multi-line entries, this indicates which line is represented. For
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/// single-line entries, this will be zero.
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/// </summary>
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public int SubLineIndex { get; private set; }
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/// <summary>
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/// Strings for display. Creation may be deferred. Use the DisplayList
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/// GetFormattedParts() method to access this property.
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/// </summary>
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/// <remarks>
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/// Certain elements, such as multi-line comments, must be formatted to determine
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/// the number of lines they span. We retain the results to avoid formatting
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/// them twice.
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/// </remarks>
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public FormattedParts Parts { get; set; }
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/// <summary>
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/// Background color, used for notes.
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/// </summary>
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public Color BackgroundColor { get; set; }
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/// <summary>
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/// String for searching. May be created on demand when the Line is first searched.
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/// </summary>
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public string SearchString { get; set; }
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public Line(int offset, int span, Type type) : this(offset, span, type, 0) { }
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public Line(int offset, int span, Type type, int subLineIndex) {
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FileOffset = offset;
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OffsetSpan = span;
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LineType = type;
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SubLineIndex = subLineIndex;
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}
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/// <summary>
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/// True if this line is code or data.
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/// </summary>
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public bool IsCodeOrData {
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get {
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return LineType == Type.Code || LineType == Type.Data;
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}
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}
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/// <summary>
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/// Returns true if the specified offset is represented by this line. There
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/// will be only one code/data line for a given offset, but there may be
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/// multiple others (comments, notes, etc.) associated with it.
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/// </summary>
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/// <param name="offset"></param>
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/// <returns></returns>
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public bool Contains(int offset) {
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// Note OffsetSpan can be zero.
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return (offset == FileOffset ||
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(offset >= FileOffset && offset < FileOffset + OffsetSpan));
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}
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public override string ToString() {
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return "Line type=" + LineType + " off=+" + FileOffset.ToString("x6") +
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" span=" + OffsetSpan;
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}
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}
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/// <summary>
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/// Captures the set of selected lines. Lines are identified by offset and type.
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///
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/// The idea is to save the selection, rebuild the list -- potentially moving
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/// stuff around -- and then rebuild the selection bitmap by finding matching
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/// items.
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///
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/// We don't try to identify parts of multi-line things. If you've selected
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/// part of a multi-line string, then when we restore the selection you'll have
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/// the entire string selected. For the operations that are possible across
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/// multiple offsets, this seems like reasonable behavior.
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///
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/// We can't precisely restore the selection in terms of which file offsets
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/// are selected. If you select one byte and apply a code hint, we'll restore
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/// the selection to a line with 1-4 bytes. This gets weird if you hit "undo",
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/// as you will then have 1-4 bytes selected rather than the original one. It
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/// might be better to just clear the selection on "undo".
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/// </summary>
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public class SavedSelection {
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private class Tag {
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public int mOffset;
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public int mSpan;
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public Line.Type mTypes;
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public Tag(int offset, int span, Line.Type lineType) {
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//Debug.Assert(offset >= 0);
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Debug.Assert(span >= 0);
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mOffset = offset;
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mSpan = (span == 0) ? 1 : span;
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mTypes = lineType;
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}
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}
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private List<Tag> mSelectionTags = new List<Tag>();
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/// <summary>
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/// This is a place to save the file offset associated with the ListView's
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/// TopItem, so we can position the list appropriately.
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/// </summary>
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private int mTopOffset;
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// Use Generate().
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private SavedSelection() { }
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/// <summary>
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/// Creates a new SavedSelection object, generating a list of tags from the
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/// lines that are currently selected.
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///
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/// If nothing is selected, SavedSelection will have no members.
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/// </summary>
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/// <param name="dl">Display list, with list of Lines.</param>
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/// <param name="sel">Bit vector specifying which lines are selected.</param>
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/// <returns>New SavedSelection object.</returns>
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public static SavedSelection Generate(LineListGen dl, VirtualListViewSelection sel,
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int topOffset) {
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SavedSelection savedSel = new SavedSelection();
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//Debug.Assert(topOffset >= 0);
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savedSel.mTopOffset = topOffset;
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List<Line> lineList = dl.mLineList;
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Debug.Assert(lineList.Count == sel.Length);
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// Generate tags, which are a combination of the offset, span, and a merge
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// of types of all the lines associated with that offset.
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//
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// We may want to consider some sort of optimization for a "select all"
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// operation, although there aren't many changes you can make after selecting
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// all lines in a very large file.
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Tag tag = null;
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int curOffset = -1;
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for (int i = 0; i < lineList.Count; i++) {
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if (!sel[i]) {
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continue;
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}
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Line line = lineList[i];
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// Code hinting can transform code to data and vice-versa, so we
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// want the tag to reflect the fact that both could exist.
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Line.Type lineType = line.LineType;
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if (lineType == Line.Type.Code || lineType == Line.Type.Data) {
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lineType = Line.Type.CodeOrData;
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}
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if (line.FileOffset != curOffset) {
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// advanced to new offset, flush previous
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if (tag != null) {
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savedSel.mSelectionTags.Add(tag);
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}
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curOffset = line.FileOffset;
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tag = new Tag(line.FileOffset, line.OffsetSpan, lineType);
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} else {
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// another item at same offset
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tag.mSpan = Math.Max(tag.mSpan, line.OffsetSpan);
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tag.mTypes |= lineType;
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}
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}
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if (curOffset == -1) {
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// It's hard to cause an action that requires save/restore when you don't
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// have anything selected in the ListView. However, this can happen if
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// you do a sequence like:
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// - Open a file that starts with a JMP followed by data.
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// - Click on the blank line below the code, which has the code's offset,
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// and select "remove hint". This causes the blank line to vanish,
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// so the Restore() won't select anything.
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// - Click "undo".
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Debug.WriteLine("NOTE: no selection found");
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} else {
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// Add the in-progress tag to the list.
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savedSel.mSelectionTags.Add(tag);
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}
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return savedSel;
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}
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/// <summary>
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/// Creates a selection set by identifying the set of lines in the display list
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/// that correspond to items in the SavedSelection tag list.
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/// </summary>
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/// <param name="dl">Display list, with list of Lines.</param>
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/// <returns>Set of selected lines.</returns>
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public VirtualListViewSelection Restore(LineListGen dl, out int topIndex) {
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List<Line> lineList = dl.mLineList;
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VirtualListViewSelection sel = new VirtualListViewSelection(lineList.Count);
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topIndex = -1;
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// Walk through the tag list, which is ordered by ascending offset, and
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// through the display list, which is similarly ordered.
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int tagIndex = 0;
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int lineIndex = 0;
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while (tagIndex < mSelectionTags.Count && lineIndex < lineList.Count) {
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Tag tag = mSelectionTags[tagIndex];
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int lineOffset = lineList[lineIndex].FileOffset;
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// If a line encompassing this offset was at the top of the ListView
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// control before, use this line's index as the top.
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if (topIndex < 0 && lineList[lineIndex].Contains(mTopOffset)) {
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topIndex = lineIndex;
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}
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if (lineOffset >= tag.mOffset && lineOffset < tag.mOffset + tag.mSpan) {
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// Intersection. If the line type matches, add it to the set.
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if ((tag.mTypes & lineList[lineIndex].LineType) != 0) {
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sel[lineIndex] = true;
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}
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// Advance to the next line entry.
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lineIndex++;
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} else if (tag.mOffset < lineOffset) {
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// advance tag
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tagIndex++;
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} else {
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Debug.Assert(tag.mOffset > lineOffset);
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lineIndex++;
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}
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}
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// Continue search for topIndex, if necessary.
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while (topIndex < 0 && lineIndex < lineList.Count) {
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if (lineList[lineIndex].Contains(mTopOffset)) {
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topIndex = lineIndex;
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break;
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}
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lineIndex++;
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}
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Debug.WriteLine("TopOffset +" + mTopOffset.ToString("x6") +
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" --> index " + topIndex);
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if (topIndex < 0) {
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// This can happen if you delete the header comment while scrolled
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// to the top of the list.
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topIndex = 0;
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}
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return sel;
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}
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public void DebugDump() {
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Debug.WriteLine("Selection (" + mSelectionTags.Count + " offsets):");
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foreach (Tag tag in mSelectionTags) {
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Debug.WriteLine(" +" + tag.mOffset.ToString("x6") + "/" +
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tag.mSpan + ": " + tag.mTypes);
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}
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}
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}
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/// <summary>
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/// Constructor.
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/// </summary>
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/// <param name="proj">Project object.</param>
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/// <param name="formatter">Formatter object.</param>
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public LineListGen(DisasmProject proj, DisplayList displayList, Formatter formatter,
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PseudoOp.PseudoOpNames opNames) {
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Debug.Assert(proj != null);
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Debug.Assert(displayList != null);
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Debug.Assert(formatter != null);
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Debug.Assert(opNames != null);
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mProject = proj;
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mDisplayList = displayList;
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mFormatter = formatter;
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mPseudoOpNames = opNames;
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mLineList = new List<Line>();
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mShowCycleCounts = AppSettings.Global.GetBool(AppSettings.SRCGEN_SHOW_CYCLE_COUNTS,
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false);
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mDisplayList.ListGen = this;
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}
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/// <summary>
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/// Changes the Formatter object. Clears the display list, instigating a full re-render.
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/// </summary>
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/// <param name="formatter">Formatter object.</param>
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public void SetFormatter(Formatter formatter) {
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mFormatter = formatter;
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mLineList.Clear();
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// TODO: update display list
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// We probably just changed settings, so update this as well.
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mShowCycleCounts = AppSettings.Global.GetBool(AppSettings.SRCGEN_SHOW_CYCLE_COUNTS,
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false);
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}
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/// <summary>
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/// Changes the pseudo-op name object. Clears the display list, instigating a
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/// full re-render.
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/// </summary>
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/// <param name="opNames">Pseudo-op names.</param>
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public void SetPseudoOpNames(PseudoOp.PseudoOpNames opNames) {
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mPseudoOpNames = opNames;
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mLineList.Clear();
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// TODO: update display list
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}
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/// <summary>
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/// Number of lines in the list.
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/// </summary>
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public int Count { get { return mLineList.Count; } }
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/// <summary>
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/// Retrieves the Nth element.
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/// </summary>
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public Line this[int key] {
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get {
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return mLineList[key];
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}
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}
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/// <summary>
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/// Returns the Line's FormattedParts object, generating it first if necessary.
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/// </summary>
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/// <returns>Object with formatted strings.</returns>
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public FormattedParts GetFormattedParts(int index) {
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Line line = mLineList[index];
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if (line.Parts == null) {
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FormattedParts parts;
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switch (line.LineType) {
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case Line.Type.Code:
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parts = GenerateInstructionLine(mProject, mFormatter,
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line.FileOffset, line.OffsetSpan, mShowCycleCounts);
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break;
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case Line.Type.Data:
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parts = GenerateDataLine(mProject, mFormatter, mPseudoOpNames,
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line.FileOffset, line.SubLineIndex);
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break;
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case Line.Type.Blank:
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// Nothing to do.
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parts = FormattedParts.CreateBlankLine();
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break;
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case Line.Type.OrgDirective:
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case Line.Type.RegWidthDirective:
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case Line.Type.LongComment:
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case Line.Type.Note:
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// should have been done already
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default:
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Debug.Assert(false);
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parts = FormattedParts.Create("x", "x", "x", "x", "x", "x", "x", "x", "x");
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break;
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}
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line.Parts = parts;
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}
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return line.Parts;
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}
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/// <summary>
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/// Returns a string with the concatenation of the searchable portions of the line.
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/// Different sections are separated with an unlikely unicode character. The goal
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/// is to have a single string per line that can be searched quickly, without having
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/// adjacent fields spill into each other.
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/// </summary>
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/// <param name="index">Line index.</param>
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/// <returns>Formatted line contents.</returns>
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public string GetSearchString(int index) {
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Line line = mLineList[index];
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if (line.SearchString == null) {
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const char sep = '\u203b'; // REFERENCE MARK
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FormattedParts parts = GetFormattedParts(index);
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StringBuilder sb = new StringBuilder();
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// Some parts may be null, e.g. for long comments. Append() can deal.
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sb.Append(parts.Label);
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sb.Append(sep);
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sb.Append(parts.Opcode);
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sb.Append(sep);
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sb.Append(parts.Operand);
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sb.Append(sep);
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sb.Append(parts.Comment);
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line.SearchString = sb.ToString();
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}
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return line.SearchString;
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}
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/// <summary>
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/// Finds the first line entry that encompasses the specified offset.
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/// </summary>
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/// <param name="offset">Offset to search for. Negative values are allowed.</param>
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/// <returns>Line list index, or -1 if not found.</returns>
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private static int FindLineByOffset(List<Line> lineList, int offset) {
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if (lineList.Count == 0) {
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return -1;
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}
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int low = 0;
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int high = lineList.Count - 1;
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int mid = -1;
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bool found = false;
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while (low <= high) {
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mid = (low + high) / 2;
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Line line = lineList[mid];
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if (line.Contains(offset)) {
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// found a match
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found = true;
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break;
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} else if (line.FileOffset > offset) {
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// too big, move the high end in
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high = mid - 1;
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} else if (line.FileOffset < offset) {
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// too small, move the low end in
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|
low = mid + 1;
|
|
} else {
|
|
// WTF
|
|
throw new Exception("Bad binary search");
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
return -1;
|
|
}
|
|
|
|
// We found *a* matching line. Seek backward to find the *first* matching line.
|
|
while (mid > 0) {
|
|
Line upLine = lineList[mid - 1];
|
|
if (upLine.Contains(offset)) {
|
|
mid--;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return mid;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finds the first line entry that encompasses the specified offset.
|
|
/// </summary>
|
|
/// <param name="offset">Offset to search for.</param>
|
|
/// <returns>Line list index, or -1 if not found.</returns>
|
|
public int FindLineIndexByOffset(int offset) {
|
|
return FindLineByOffset(mLineList, offset);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finds the code or data line entry that encompasses the specified offset.
|
|
/// </summary>
|
|
/// <param name="offset">Offset to search for.</param>
|
|
/// <returns>Line list index, or -1 if not found.</returns>
|
|
public int FindCodeDataIndexByOffset(int offset) {
|
|
if (offset < 0) {
|
|
// Header offset. No code or data here.
|
|
return -1;
|
|
}
|
|
int index = FindLineByOffset(mLineList, offset);
|
|
if (index < 0) {
|
|
return -1;
|
|
}
|
|
while (mLineList[index].LineType != Line.Type.Code &&
|
|
mLineList[index].LineType != Line.Type.Data) {
|
|
index++;
|
|
}
|
|
return index;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates Lines for the entire project.
|
|
/// </summary>
|
|
public void GenerateAll() {
|
|
mLineList.Clear();
|
|
GenerateHeaderLines(mProject, mFormatter, mPseudoOpNames, mLineList);
|
|
GenerateLineList(mProject, mFormatter, mPseudoOpNames,
|
|
0, mProject.FileData.Length - 1, mLineList);
|
|
|
|
mDisplayList.ResetList(mLineList.Count);
|
|
|
|
Debug.Assert(ValidateLineList(), "Display list failed validation");
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates a list of Lines for the specified range of offsets, replacing
|
|
/// existing values.
|
|
/// </summary>
|
|
/// <param name="startOffset">First offset. Must be the start of an instruction
|
|
/// or data area.</param>
|
|
/// <param name="endOffset">End offset (inclusive).</param>
|
|
public void GenerateRange(int startOffset, int endOffset) {
|
|
if (startOffset < 0) {
|
|
ClearHeaderLines();
|
|
GenerateHeaderLines(mProject, mFormatter, mPseudoOpNames, mLineList);
|
|
if (endOffset < 0) {
|
|
// nothing else to do
|
|
return;
|
|
}
|
|
// do the rest
|
|
startOffset = 0;
|
|
}
|
|
Debug.Assert(startOffset >= 0);
|
|
Debug.Assert(endOffset < mProject.FileData.Length);
|
|
Debug.Assert(endOffset >= startOffset);
|
|
//Debug.WriteLine("DL gen range [" + startOffset + "," + endOffset + "]");
|
|
|
|
// Find the start index. The start offset should always appear at the
|
|
// start of a Line because it comes from item selection.
|
|
int startIndex = FindLineByOffset(mLineList, startOffset);
|
|
if (startIndex < 0) {
|
|
Debug.Assert(false, "Unable to find startOffset " + startOffset);
|
|
GenerateAll();
|
|
return;
|
|
}
|
|
// Find the end index. The end offset can be part of a multi-line data item, like
|
|
// a long string. Find the first Line that starts at an offset larger than endOffset.
|
|
int endIndex;
|
|
if (startOffset == endOffset) {
|
|
// Simple optimization for single-offset groups.
|
|
endIndex = startIndex;
|
|
} else {
|
|
endIndex = FindLineByOffset(mLineList, endOffset);
|
|
}
|
|
if (endIndex < 0) {
|
|
Debug.Assert(false, "Unable to find endOffset " + endOffset);
|
|
GenerateAll();
|
|
return;
|
|
}
|
|
// There may be more than one line involved, so we need to scan forward.
|
|
for (endIndex++; endIndex < mLineList.Count; endIndex++) {
|
|
if (mLineList[endIndex].FileOffset > endOffset) {
|
|
endIndex--;
|
|
break;
|
|
}
|
|
}
|
|
if (endIndex == mLineList.Count) {
|
|
// whoops, loop ended before we had a chance to decrement
|
|
endIndex = mLineList.Count - 1;
|
|
}
|
|
Debug.WriteLine("GenerateRange: offset [+" + startOffset.ToString("x6") + ",+" +
|
|
endOffset.ToString("x6") +
|
|
"] maps to index [" + startIndex + "," + endIndex + "]");
|
|
Debug.Assert(endIndex >= startIndex);
|
|
|
|
// Create temporary list to hold new lines. Set the initial capacity to
|
|
// the previous size, on the assumption that it won't change much.
|
|
List<Line> newLines = new List<Line>(endIndex - startIndex + 1);
|
|
GenerateLineList(mProject, mFormatter, mPseudoOpNames, startOffset, endOffset, newLines);
|
|
|
|
// Out with the old, in with the new.
|
|
mLineList.RemoveRange(startIndex, endIndex - startIndex + 1);
|
|
mLineList.InsertRange(startIndex, newLines);
|
|
// TODO: update display list
|
|
|
|
Debug.Assert(ValidateLineList(), "Display list failed validation");
|
|
}
|
|
|
|
/// <summary>
|
|
/// Validates the line list, confirming that every offset is represented exactly once.
|
|
/// </summary>
|
|
/// <returns>True if all is well.</returns>
|
|
private bool ValidateLineList() {
|
|
int expectedOffset = 0;
|
|
int lastOffset = Int32.MinValue;
|
|
foreach (Line line in mLineList) {
|
|
// Header lines aren't guaranteed to be sequential and don't have a span.
|
|
// They are expected to be in sorted order, and to be unique (with the
|
|
// notable exception of the header comment, which is multi-line).
|
|
if (line.FileOffset < 0) {
|
|
if (line.FileOffset < lastOffset || (line.LineType != Line.Type.LongComment &&
|
|
line.FileOffset == lastOffset)) {
|
|
Debug.WriteLine("Header offsets went backward: cur=" +
|
|
line.FileOffset + " last=" + lastOffset);
|
|
return false;
|
|
}
|
|
lastOffset = line.FileOffset;
|
|
continue;
|
|
}
|
|
|
|
// Blank lines and comments can appear before or after code/data. They
|
|
// must have the offset of the associated line, and a span of zero.
|
|
if (line.FileOffset != expectedOffset && line.FileOffset != lastOffset) {
|
|
Debug.WriteLine("ValidateLineList: bad offset " + line.FileOffset +
|
|
" (last=" + lastOffset + ", expected next=" + expectedOffset + ")");
|
|
return false;
|
|
}
|
|
|
|
if (line.SubLineIndex != 0) {
|
|
// In the middle of a multi-line thing, don't advance last/expected.
|
|
Debug.Assert(line.FileOffset == lastOffset);
|
|
} else {
|
|
lastOffset = expectedOffset;
|
|
expectedOffset += line.OffsetSpan;
|
|
}
|
|
}
|
|
|
|
if (expectedOffset != mProject.FileData.Length) {
|
|
Debug.WriteLine("ValidateLineList: did not cover entire file: last offset " +
|
|
expectedOffset + ", file has " + mProject.FileData.Length);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Removes all header lines from the display list.
|
|
/// </summary>
|
|
private void ClearHeaderLines() {
|
|
// Find the first non-header item.
|
|
int endIndex = FindLineByOffset(mLineList, 0);
|
|
if (endIndex == 0) {
|
|
// no header lines present
|
|
Debug.WriteLine("No header lines found");
|
|
return;
|
|
}
|
|
Debug.WriteLine("Removing " + endIndex + " header lines");
|
|
mLineList.RemoveRange(0, endIndex);
|
|
// TODO: update display list
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates a synthetic offset for the FileOffset field from an index value. The
|
|
/// index arg is the index of an entry in the DisasmProject.ActiveDefSymbolList.
|
|
/// (The exact algorithm isn't too important, as these offsets are not stored in the
|
|
/// project file.)
|
|
/// </summary>
|
|
private static int DefSymOffsetFromIndex(int index) {
|
|
Debug.Assert(index >= 0 && index < (1 << 24));
|
|
return index - (1 << 24);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns the DisasmProject.ActiveDefSymbolList index for an EQU line with
|
|
/// the specified file offset.
|
|
/// </summary>
|
|
public static int DefSymIndexFromOffset(int offset) {
|
|
Debug.Assert(offset < 0);
|
|
return offset + (1 << 24);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates the header lines (header comment, EQU directives), and inserts them at
|
|
/// the top of the list.
|
|
///
|
|
/// This does not currently do incremental generation. Call ClearHeaderLines() before
|
|
/// calling here if you're not starting with an empty list.
|
|
/// </summary>
|
|
/// <param name="proj">Project reference.</param>
|
|
/// <param name="formatter">Output formatter.</param>
|
|
/// <param name="opNames">Pseudo-op names.</param>
|
|
/// <param name="fullLines">List to add output lines to.</param>
|
|
private static void GenerateHeaderLines(DisasmProject proj, Formatter formatter,
|
|
PseudoOp.PseudoOpNames opNames, List<Line> fullLines) {
|
|
List<Line> tmpLines = new List<Line>();
|
|
Line line;
|
|
FormattedParts parts;
|
|
|
|
// Check for header comment.
|
|
if (proj.LongComments.TryGetValue(Line.HEADER_COMMENT_OFFSET,
|
|
out MultiLineComment headerComment)) {
|
|
List<string> formatted = headerComment.FormatText(formatter, string.Empty);
|
|
StringListToLines(formatted, Line.HEADER_COMMENT_OFFSET, Line.Type.LongComment,
|
|
Color.FromArgb(0, 0, 0, 0), tmpLines);
|
|
}
|
|
|
|
// Format symbols.
|
|
int index = 0;
|
|
foreach (DefSymbol defSym in proj.ActiveDefSymbolList) {
|
|
line = new Line(DefSymOffsetFromIndex(index), 0, Line.Type.EquDirective);
|
|
// Use an operand length of 1 so things are shown as concisely as possible.
|
|
string valueStr = PseudoOp.FormatNumericOperand(formatter, proj.SymbolTable,
|
|
null, defSym.DataDescriptor, defSym.Value, 1,
|
|
PseudoOp.FormatNumericOpFlags.None);
|
|
string comment = formatter.FormatEolComment(defSym.Comment);
|
|
parts = FormattedParts.CreateEquDirective(defSym.Label,
|
|
formatter.FormatPseudoOp(opNames.EquDirective),
|
|
valueStr, comment);
|
|
line.Parts = parts;
|
|
tmpLines.Add(line);
|
|
index++;
|
|
}
|
|
|
|
if (proj.ActiveDefSymbolList.Count != 0) {
|
|
// We had some EQUs, throw a blank line at the end.
|
|
index++;
|
|
line = new Line(DefSymOffsetFromIndex(index), 0, Line.Type.Blank);
|
|
tmpLines.Add(line);
|
|
}
|
|
|
|
fullLines.InsertRange(0, tmpLines);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates lines for the specified range of file offsets.
|
|
///
|
|
/// Does not generate formatted parts in most cases; that usually happens on demand.
|
|
/// Complicated items, such as word-wrapped long comments, may be generated now
|
|
/// and saved off.
|
|
///
|
|
/// This still needs a formatter arg even when no text is rendered because some
|
|
/// options, like maximum per-line operand length, might affect how many lines
|
|
/// are generated.
|
|
/// </summary>
|
|
/// <param name="proj">Project reference.</param>
|
|
/// <param name="formatter">Output formatter.</param>
|
|
/// <param name="startOffset">Offset of first byte.</param>
|
|
/// <param name="endOffset">Offset of last byte.</param>
|
|
/// <param name="lines">List to add output lines to.</param>
|
|
private static void GenerateLineList(DisasmProject proj, Formatter formatter,
|
|
PseudoOp.PseudoOpNames opNames, int startOffset, int endOffset, List<Line> lines) {
|
|
//Debug.WriteLine("GenerateRange [+" + startOffset.ToString("x6") + ",+" +
|
|
// endOffset.ToString("x6") + "]");
|
|
|
|
Debug.Assert(startOffset >= 0);
|
|
Debug.Assert(endOffset >= startOffset);
|
|
|
|
// Find the previous status flags for M/X tracking.
|
|
StatusFlags prevFlags = StatusFlags.AllIndeterminate;
|
|
if (proj.CpuDef.HasEmuFlag) {
|
|
for (int scanoff = startOffset - 1; scanoff >= 0; scanoff--) {
|
|
Anattrib attr = proj.GetAnattrib(scanoff);
|
|
if (attr.IsInstructionStart) {
|
|
prevFlags = attr.StatusFlags;
|
|
// Apply the same tweak here that we do to curFlags below.
|
|
prevFlags.M = attr.StatusFlags.ShortM ? 1 : 0;
|
|
prevFlags.X = attr.StatusFlags.ShortX ? 1 : 0;
|
|
Debug.WriteLine("GenerateLineList startOff=+" +
|
|
startOffset.ToString("x6") + " using initial flags from +" +
|
|
scanoff.ToString("x6") + ": " + prevFlags);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Configure the initial value of addBlank. The specific case we're handling is
|
|
// a no-continue instruction (e.g. JMP) followed by an instruction with a label.
|
|
// When we rename the label, we don't want the blank to disappear during the
|
|
// partial-list generation.
|
|
bool addBlank = false;
|
|
if (startOffset > 0) {
|
|
int baseOff = DataAnalysis.GetBaseOperandOffset(proj, startOffset - 1);
|
|
if (proj.GetAnattrib(baseOff).DoesNotContinue) {
|
|
addBlank = true;
|
|
}
|
|
}
|
|
|
|
int offset = startOffset;
|
|
while (offset <= endOffset) {
|
|
Anattrib attr = proj.GetAnattrib(offset);
|
|
if (attr.IsInstructionStart && offset > 0 &&
|
|
proj.GetAnattrib(offset - 1).IsData) {
|
|
// Transition from data to code. (Don't add blank line for inline data.)
|
|
lines.Add(GenerateBlankLine(offset));
|
|
} else if (addBlank) {
|
|
// Previous instruction wanted to be followed by a blank line.
|
|
lines.Add(GenerateBlankLine(offset));
|
|
}
|
|
addBlank = false;
|
|
|
|
// Insert long comments and notes. These may span multiple display lines,
|
|
// and require word-wrap, so it's easiest just to render them fully here.
|
|
if (proj.Notes.TryGetValue(offset, out MultiLineComment noteData)) {
|
|
List<string> formatted = noteData.FormatText(formatter, "NOTE: ");
|
|
StringListToLines(formatted, offset, Line.Type.Note,
|
|
noteData.BackgroundColor, lines);
|
|
}
|
|
if (proj.LongComments.TryGetValue(offset, out MultiLineComment longComment)) {
|
|
List<string> formatted = longComment.FormatText(formatter, string.Empty);
|
|
StringListToLines(formatted, offset, Line.Type.LongComment,
|
|
longComment.BackgroundColor, lines);
|
|
}
|
|
|
|
if (attr.IsInstructionStart) {
|
|
// Generate reg width directive, if necessary.
|
|
if (proj.CpuDef.HasEmuFlag) {
|
|
// Changing from "ambiguous but assumed short" to "definitively short"
|
|
// merits a directive, notably at the start of the file. The tricky
|
|
// part is that E=1 means definitively M=1 X=1. And maybe
|
|
// indeterminate E also means that.
|
|
//
|
|
// We don't want to mess with Anattrib, but we do need to tell the
|
|
// assembler something. So we tweak our local copy and propagate it.
|
|
string operandStr = string.Empty;
|
|
StatusFlags curFlags = attr.StatusFlags;
|
|
curFlags.M = attr.StatusFlags.ShortM ? 1 : 0;
|
|
curFlags.X = attr.StatusFlags.ShortX ? 1 : 0;
|
|
if (curFlags.M != prevFlags.M) {
|
|
operandStr = (curFlags.M == 0) ? "longm" : "shortm";
|
|
}
|
|
|
|
if (curFlags.X != prevFlags.X) {
|
|
if (operandStr.Length > 0) {
|
|
operandStr += ",";
|
|
}
|
|
operandStr += (curFlags.X == 0) ? "longx" : "shortx";
|
|
}
|
|
|
|
if (operandStr.Length > 0) {
|
|
Line rwLine = new Line(offset, 0, Line.Type.RegWidthDirective);
|
|
// FormatPseudoOp isn't quite right for the operand, but there
|
|
// isn't anything more suitable, and there are only eight
|
|
// possible values. Having the operand capitalization match the
|
|
// pseudo-op's feels reasonable.
|
|
rwLine.Parts = FormattedParts.CreateDirective(
|
|
formatter.FormatPseudoOp(opNames.RegWidthDirective),
|
|
formatter.FormatPseudoOp(operandStr));
|
|
lines.Add(rwLine);
|
|
}
|
|
prevFlags = curFlags;
|
|
}
|
|
|
|
// Look for embedded instructions.
|
|
int len;
|
|
for (len = 1; len < attr.Length; len++) {
|
|
if (proj.GetAnattrib(offset + len).IsInstructionStart) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Create Line entry. Offset span only covers the instruction up to
|
|
// the point where the embedded instruction starts.
|
|
Line line = new Line(offset, len, Line.Type.Code);
|
|
lines.Add(line);
|
|
|
|
// Insert blank after an instruction that doesn't continue. Provides a
|
|
// break in code, and before a data area.
|
|
// TODO(maybe): Might also want to do this if the next offset is data,
|
|
// to make things look nicer when code runs directly into data.
|
|
//
|
|
// We don't want to add it with the current line's offset. If we do that,
|
|
// the binary search will get confused, because blank lines have a span
|
|
// of zero. If the code is at offset 10 with length 3, and we search for
|
|
// the byte at offset 11, then a blank line (with span=0) at offset 10 will
|
|
// cause the binary search to assume that the target is farther down, when
|
|
// it's actually one line up. We deal with this by setting a flag and
|
|
// generating the blank line on the next trip through the loop.
|
|
if (attr.DoesNotContinue) {
|
|
addBlank = true;
|
|
}
|
|
|
|
offset += len;
|
|
} else {
|
|
Debug.Assert(attr.DataDescriptor != null);
|
|
int numLines =
|
|
PseudoOp.ComputeRequiredLineCount(formatter, attr.DataDescriptor);
|
|
for (int i = 0; i < numLines; i++) {
|
|
Line line = new Line(offset, attr.Length, Line.Type.Data, i);
|
|
lines.Add(line);
|
|
}
|
|
offset += attr.Length;
|
|
}
|
|
}
|
|
|
|
// See if there were any address shifts in this section. If so, insert an ORG
|
|
// statement as the first entry for the offset. We're expecting to have very
|
|
// few AddressMap entries (usually just one), so it's more efficient to process
|
|
// them here and walk through the sub-list than it is to ping the address map
|
|
// at every line.
|
|
//
|
|
// It should not be possible for an address map change to appear in the middle
|
|
// of an instruction or data item.
|
|
foreach (AddressMap.AddressMapEntry ent in proj.AddrMap) {
|
|
if (ent.Offset < startOffset || ent.Offset > endOffset) {
|
|
continue;
|
|
}
|
|
int index = FindLineByOffset(lines, ent.Offset);
|
|
if (index < 0) {
|
|
Debug.WriteLine("Couldn't find offset " + ent.Offset +
|
|
" in range we just generated");
|
|
Debug.Assert(false);
|
|
continue;
|
|
}
|
|
if (lines[index].LineType == Line.Type.Blank) {
|
|
index++;
|
|
}
|
|
Line topLine = lines[index];
|
|
Line newLine = new Line(topLine.FileOffset, 0, Line.Type.OrgDirective);
|
|
string addrStr = formatter.FormatHexValue(ent.Addr, 4);
|
|
newLine.Parts = FormattedParts.CreateDirective(
|
|
formatter.FormatPseudoOp(opNames.OrgDirective), addrStr);
|
|
lines.Insert(index, newLine);
|
|
|
|
// Prepend a blank line if the previous line wasn't already blank, and this
|
|
// isn't the ORG at the start of the file. (This may temporarily do
|
|
// double-spacing if we do a partial update, because we won't be able to
|
|
// "see" the previous line. Harmless.)
|
|
if (ent.Offset != 0 && index > 0 && lines[index-1].LineType != Line.Type.Blank) {
|
|
Line blankLine = new Line(topLine.FileOffset, 0, Line.Type.Blank);
|
|
lines.Insert(index, blankLine);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates a blank line entry.
|
|
/// </summary>
|
|
private static Line GenerateBlankLine(int offset) {
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|
return new Line(offset, 0, Line.Type.Blank);
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|
}
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|
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/// <summary>
|
|
/// Takes a list of strings and adds them to the Line list as long comments.
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|
/// </summary>
|
|
/// <param name="list"></param>
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|
/// <param name="offset"></param>
|
|
/// <param name="lineType"></param>
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|
/// <param name="color"></param>
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|
/// <param name="lines"></param>
|
|
private static void StringListToLines(List<string> list, int offset, Line.Type lineType,
|
|
Color color, List<Line> lines) {
|
|
foreach (string str in list) {
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|
Line line = new Line(offset, 0, lineType);
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|
FormattedParts parts = FormattedParts.CreateLongComment(str);
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|
line.Parts = parts;
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|
line.BackgroundColor = color;
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|
lines.Add(line);
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|
}
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|
}
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|
|
|
private static FormattedParts GenerateInstructionLine(DisasmProject proj,
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|
Formatter formatter, int offset, int instrBytes, bool showCycleCounts) {
|
|
Anattrib attr = proj.GetAnattrib(offset);
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|
byte[] data = proj.FileData;
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|
|
|
string offsetStr = formatter.FormatOffset24(offset);
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|
|
|
int addr = attr.Address;
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|
string addrStr = formatter.FormatAddress(addr, !proj.CpuDef.HasAddr16);
|
|
string bytesStr = formatter.FormatBytes(data, offset, instrBytes);
|
|
string flagsStr = attr.StatusFlags.ToString(proj.CpuDef.HasEmuFlag);
|
|
string attrStr = attr.ToAttrString();
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|
|
|
string labelStr = string.Empty;
|
|
if (attr.Symbol != null) {
|
|
labelStr = attr.Symbol.Label;
|
|
}
|
|
|
|
OpDef op = proj.CpuDef.GetOpDef(data[offset]);
|
|
int operand = op.GetOperand(data, offset, attr.StatusFlags);
|
|
int instrLen = op.GetLength(attr.StatusFlags);
|
|
OpDef.WidthDisambiguation wdis = OpDef.WidthDisambiguation.None;
|
|
if (op.IsWidthPotentiallyAmbiguous) {
|
|
wdis = OpDef.GetWidthDisambiguation(instrLen, operand);
|
|
}
|
|
|
|
string opcodeStr = formatter.FormatOpcode(op, wdis);
|
|
if (attr.Length != instrBytes) {
|
|
// An instruction is embedded inside this one. Note that BRK is a two-byte
|
|
// instruction, so don't freak out if you see it marked as embedded when a
|
|
// $00 is followed by actual code. (But be a little freaked out that your
|
|
// code is running into a BRK.)
|
|
//opcodeStr = opcodeStr + " \u00bb"; // RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
|
|
//opcodeStr = opcodeStr + " \u23e9"; // BLACK RIGHT-POINTING DOUBLE TRIANGLE
|
|
opcodeStr = opcodeStr + " \u25bc"; // BLACK DOWN-POINTING TRIANGLE
|
|
}
|
|
|
|
string formattedOperand = null;
|
|
int operandLen = instrLen - 1;
|
|
PseudoOp.FormatNumericOpFlags opFlags = PseudoOp.FormatNumericOpFlags.None;
|
|
|
|
// Tweak branch instructions. We want to show the absolute address rather
|
|
// than the relative offset (which happens with the OperandAddress assignment
|
|
// below), and 1-byte branches should always appear as a 4-byte hex value.
|
|
if (op.AddrMode == OpDef.AddressMode.PCRel) {
|
|
Debug.Assert(attr.OperandAddress >= 0);
|
|
operandLen = 2;
|
|
opFlags = PseudoOp.FormatNumericOpFlags.IsPcRel;
|
|
} else if (op.AddrMode == OpDef.AddressMode.PCRelLong ||
|
|
op.AddrMode == OpDef.AddressMode.StackPCRelLong) {
|
|
opFlags = PseudoOp.FormatNumericOpFlags.IsPcRel;
|
|
} else if (op.AddrMode == OpDef.AddressMode.Imm ||
|
|
op.AddrMode == OpDef.AddressMode.ImmLongA ||
|
|
op.AddrMode == OpDef.AddressMode.ImmLongXY) {
|
|
opFlags = PseudoOp.FormatNumericOpFlags.HasHashPrefix;
|
|
}
|
|
|
|
// Use the OperandAddress when available. This is important for relative branch
|
|
// instructions and PER, where we want to show the target address rather than the
|
|
// operand value.
|
|
int operandForSymbol = operand;
|
|
if (attr.OperandAddress >= 0) {
|
|
operandForSymbol = attr.OperandAddress;
|
|
}
|
|
|
|
// Check Length to watch for bogus descriptors. ApplyFormatDescriptors() should
|
|
// have discarded anything appropriate, so we might be able to eliminate this test.
|
|
if (attr.DataDescriptor != null && attr.Length == attr.DataDescriptor.Length) {
|
|
Debug.Assert(operandLen > 0);
|
|
|
|
// Format operand as directed.
|
|
if (op.AddrMode == OpDef.AddressMode.BlockMove) {
|
|
// Special handling for the double-operand block move.
|
|
string opstr1 = PseudoOp.FormatNumericOperand(formatter, proj.SymbolTable,
|
|
null, attr.DataDescriptor, operand >> 8, 1,
|
|
PseudoOp.FormatNumericOpFlags.None);
|
|
string opstr2 = PseudoOp.FormatNumericOperand(formatter, proj.SymbolTable,
|
|
null, attr.DataDescriptor, operand & 0xff, 1,
|
|
PseudoOp.FormatNumericOpFlags.None);
|
|
formattedOperand = opstr1 + "," + opstr2;
|
|
} else {
|
|
formattedOperand = PseudoOp.FormatNumericOperand(formatter, proj.SymbolTable,
|
|
null, attr.DataDescriptor, operandForSymbol, operandLen, opFlags);
|
|
}
|
|
} else {
|
|
// Show operand value in hex.
|
|
if (op.AddrMode == OpDef.AddressMode.BlockMove) {
|
|
formattedOperand = formatter.FormatHexValue(operand >> 8, 2) + "," +
|
|
formatter.FormatHexValue(operand & 0xff, 2);
|
|
} else {
|
|
if (operandLen == 2) {
|
|
// This is necessary for 16-bit operands, like "LDA abs" and "PEA val",
|
|
// when outside bank zero. The bank is included in the operand address,
|
|
// but we don't want to show it here.
|
|
operandForSymbol &= 0xffff;
|
|
}
|
|
formattedOperand = formatter.FormatHexValue(operandForSymbol, operandLen * 2);
|
|
}
|
|
}
|
|
string operandStr = formatter.FormatOperand(op, formattedOperand, wdis);
|
|
|
|
string eolComment = proj.Comments[offset];
|
|
if (showCycleCounts) {
|
|
bool branchCross = (attr.Address & 0xff00) != (operandForSymbol & 0xff00);
|
|
int cycles = proj.CpuDef.GetCycles(op.Opcode, attr.StatusFlags, attr.BranchTaken,
|
|
branchCross);
|
|
if (cycles > 0) {
|
|
eolComment = cycles.ToString() + " " + eolComment;
|
|
} else {
|
|
eolComment = (-cycles).ToString() + "+ " + eolComment;
|
|
}
|
|
}
|
|
string commentStr = formatter.FormatEolComment(eolComment);
|
|
|
|
FormattedParts parts = FormattedParts.Create(offsetStr, addrStr, bytesStr,
|
|
flagsStr, attrStr, labelStr, opcodeStr, operandStr, commentStr);
|
|
return parts;
|
|
}
|
|
|
|
private static FormattedParts GenerateDataLine(DisasmProject proj, Formatter formatter,
|
|
PseudoOp.PseudoOpNames opNames, int offset, int subLineIndex) {
|
|
Anattrib attr = proj.GetAnattrib(offset);
|
|
byte[] data = proj.FileData;
|
|
|
|
string offsetStr, addrStr, bytesStr, flagsStr, attrStr, labelStr, opcodeStr,
|
|
operandStr, commentStr;
|
|
offsetStr = addrStr = bytesStr = flagsStr = attrStr = labelStr = opcodeStr =
|
|
operandStr = commentStr = string.Empty;
|
|
|
|
PseudoOp.PseudoOut pout = PseudoOp.FormatDataOp(formatter, opNames, proj.SymbolTable,
|
|
null, attr.DataDescriptor, proj.FileData, offset, subLineIndex);
|
|
if (subLineIndex == 0) {
|
|
offsetStr = formatter.FormatOffset24(offset);
|
|
|
|
addrStr = formatter.FormatAddress(attr.Address, !proj.CpuDef.HasAddr16);
|
|
if (attr.Symbol != null) {
|
|
labelStr = attr.Symbol.Label;
|
|
}
|
|
|
|
bytesStr = formatter.FormatBytes(data, offset, attr.Length);
|
|
attrStr = attr.ToAttrString();
|
|
|
|
opcodeStr = formatter.FormatPseudoOp(pout.Opcode);
|
|
} else {
|
|
opcodeStr = " +";
|
|
}
|
|
|
|
operandStr = pout.Operand;
|
|
|
|
if (subLineIndex == 0) {
|
|
commentStr = formatter.FormatEolComment(proj.Comments[offset]);
|
|
}
|
|
|
|
FormattedParts parts = FormattedParts.Create(offsetStr, addrStr, bytesStr,
|
|
flagsStr, attrStr, labelStr, opcodeStr, operandStr, commentStr);
|
|
return parts;
|
|
}
|
|
}
|
|
}
|