mirror of
https://github.com/fadden/6502bench.git
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34ba47e71d
Modified the asm source generators and on-screen display to show the DP arg for BBR/BBS as hex. The instructions are otherwise treated as relative branches, e.g. the DP arg doesn't get factored into the cross-reference table. ACME/cc65 put the bit number in the mnemonic, 64tass wants it to be in the first argument, and Merlin32 wants nothing to do with any of this because it's incompatible with the 65816. Added an "all ops" test for W65C02.
1149 lines
49 KiB
C#
1149 lines
49 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.Collections.Generic;
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using System.Diagnostics;
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using System.Text;
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using AddressMode = Asm65.OpDef.AddressMode;
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namespace Asm65 {
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/// <summary>
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/// Functions used for formatting bits of 65xx code into human-readable form.
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///
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/// There are a variety of ways to format a given thing, based on personal preference
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/// (e.g. whether opcodes are upper- or lower-case) and assembler syntax requirements.
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///
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/// The functions in this class serve two purposes: (1) produce consistent output
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/// throughout the program; (2) cache format strings and other components to reduce
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/// string manipulation overhead. Note the caching is per-Formatter, so it's best to
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/// create just one and share it around.
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///
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/// The configuration of a Formatter may not be altered once created. This is important
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/// in situations where we compute output size in one pass and generate it in another,
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/// because it guarantees that a given Formatter object will produce the same number of
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/// lines of output.
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///
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/// NOTE: if the CpuDef changes, the cached values in the Formatter will become invalid
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/// (e.g. mOpcodeStrings). Discard the Formatter and create a new one. (This could be
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/// fixed by keying off of the OpDef instead of OpDef.Opcode, but that's less convenient.)
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/// </summary>
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public class Formatter {
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// Default wrap point for long operands. This potentially affects both on-screen
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// display and source code generation.
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private const int DEFAULT_OPERAND_WRAP_LEN = 64;
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/// <summary>
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/// Various format configuration options. Fill one of these out and pass it to
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/// the Formatter constructor.
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/// </summary>
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public struct FormatConfig {
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// alpha case for some case-insensitive items
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public bool mUpperHexDigits; // display hex values in upper case?
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public bool mUpperOpcodes; // display opcodes in upper case?
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public bool mUpperPseudoOpcodes; // display pseudo-opcodes in upper case?
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public bool mUpperOperandA; // display acc operand in upper case?
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public bool mUpperOperandS; // display stack operand in upper case?
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public bool mUpperOperandXY; // display index register operand in upper case?
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public bool mAddSpaceLongComment; // insert space after delimiter for long comments?
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// functional changes to assembly output
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public bool mSuppressHexNotation; // omit '$' before hex digits
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public bool mSuppressImpliedAcc; // emit just "LSR" rather than "LSR A"?
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public bool mBankSelectBackQuote; // use '`' rather than '^' for bank selector?
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public string mForceDirectOperandPrefix; // these may be null or empty
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public string mForceAbsOpcodeSuffix;
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public string mForceAbsOperandPrefix;
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public string mForceDirectOpcodeSuffix;
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public string mForceLongOpcodeSuffix;
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public string mForceLongOperandPrefix;
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public string mLocalVariableLabelPrefix; // e.g. Merlin 32 puts ']' before var names
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public string mNonUniqueLabelPrefix; // e.g. ':' or '@' before local label
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public string mEndOfLineCommentDelimiter; // usually ';'
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public string mFullLineCommentDelimiterBase; // usually ';' or '*', WITHOUT extra space
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public string mBoxLineCommentDelimiter; // usually blank or ';'
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// delimiter patterns for single character constants
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public DelimiterSet mCharDelimiters;
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public DelimiterSet mStringDelimiters;
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// point at which we wrap long operands; zero uses default
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public int mOperandWrapLen;
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// miscellaneous
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public bool mSpacesBetweenBytes; // "20edfd" vs. "20 ed fd"
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public bool mCommaSeparatedDense; // "20edfd" vs. "$20,$ed,$fd"
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// hex dumps
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public bool mHexDumpAsciiOnly; // disallow non-ASCII chars in hex dumps?
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public enum CharConvMode {
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// TODO(maybe): just pass in a CharEncoding.Convert delegate
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Unknown = 0,
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Ascii,
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LowHighAscii,
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C64Petscii,
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C64ScreenCode
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};
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public CharConvMode mHexDumpCharConvMode; // character conversion mode for dumps
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// This determines what operators are available and what their precedence is.
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// Hopefully we don't need a separate mode for every assembler in existence.
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public enum ExpressionMode { Unknown = 0, Common, Cc65, Merlin };
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public ExpressionMode mExpressionMode; // symbol rendering mode
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// Deserialization helper.
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public static ExpressionMode ParseExpressionMode(string str) {
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ExpressionMode em = ExpressionMode.Common;
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if (!string.IsNullOrEmpty(str)) {
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if (Enum.TryParse<ExpressionMode>(str, out ExpressionMode pem)) {
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em = pem;
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}
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}
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return em;
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}
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// TODO: FormatConfig should be a class with properties so we can avoid this nonsense
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public void Normalize() {
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if (mForceDirectOperandPrefix == null) {
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mForceDirectOperandPrefix = string.Empty;
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}
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if (mForceAbsOpcodeSuffix == null) {
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mForceAbsOpcodeSuffix = string.Empty;
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}
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if (mForceAbsOperandPrefix == null) {
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mForceAbsOperandPrefix = string.Empty;
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}
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if (mForceDirectOpcodeSuffix == null) {
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mForceDirectOpcodeSuffix = string.Empty;
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}
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if (mForceLongOpcodeSuffix == null) {
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mForceLongOpcodeSuffix = string.Empty;
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}
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if (mForceLongOperandPrefix == null) {
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mForceLongOperandPrefix = string.Empty;
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}
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if (mLocalVariableLabelPrefix == null) {
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mLocalVariableLabelPrefix = string.Empty;
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}
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if (mNonUniqueLabelPrefix == null) {
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mNonUniqueLabelPrefix = string.Empty;
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}
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if (mEndOfLineCommentDelimiter == null) {
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mEndOfLineCommentDelimiter = string.Empty;
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}
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if (mFullLineCommentDelimiterBase == null) {
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mFullLineCommentDelimiterBase = string.Empty;
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}
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if (mBoxLineCommentDelimiter == null) {
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mBoxLineCommentDelimiter = string.Empty;
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}
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if (mOperandWrapLen == 0) {
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mOperandWrapLen = DEFAULT_OPERAND_WRAP_LEN;
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}
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}
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}
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#region Text Delimiters
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/// <summary>
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/// Container for character and string delimiter pieces. Instances are immutable.
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/// </summary>
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/// <remarks>
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/// For single-character operands, a simple concatenation of the four fields, with the
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/// character in the middle, is performed.
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///
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/// For strings, the prefix is included at the start of the first line, but not included
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/// on subsequent lines. This is primarily intended for the on-screen display, not
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/// assembly source generation. The suffix is not used at all.
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/// </remarks>
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public class DelimiterDef {
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public string Prefix { get; private set; }
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public char OpenDelim { get; private set; }
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public char CloseDelim { get; private set; }
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public string Suffix { get; private set; }
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public string FormatStr { get; private set; }
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public DelimiterDef(char delim) : this(string.Empty, delim, delim, string.Empty) {
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}
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public DelimiterDef(string prefix, char openDelim, char closeDelim, string suffix) {
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Debug.Assert(prefix != null);
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Debug.Assert(suffix != null);
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Prefix = prefix;
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OpenDelim = openDelim;
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CloseDelim = closeDelim;
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Suffix = suffix;
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// Generate format string.
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StringBuilder sb = new StringBuilder();
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sb.Append(Prefix);
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sb.Append(OpenDelim);
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sb.Append("{0}");
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sb.Append(CloseDelim);
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sb.Append(Suffix);
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FormatStr = sb.ToString();
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}
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public override string ToString() {
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return Prefix + OpenDelim + '#' + CloseDelim + Suffix;
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}
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}
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public static readonly DelimiterDef SINGLE_QUOTE_DELIM = new DelimiterDef('\'');
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public static readonly DelimiterDef DOUBLE_QUOTE_DELIM = new DelimiterDef('"');
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public class DelimiterSet {
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private Dictionary<CharEncoding.Encoding, DelimiterDef> mDelimiters =
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new Dictionary<CharEncoding.Encoding, DelimiterDef>();
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/// <summary>
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/// Returns the specified DelimiterDef, or null if not found.
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/// </summary>
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public DelimiterDef Get(CharEncoding.Encoding enc) {
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mDelimiters.TryGetValue(enc, out DelimiterDef def);
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return def;
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}
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public void Set(CharEncoding.Encoding enc, DelimiterDef def) {
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mDelimiters[enc] = def;
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}
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public override string ToString() {
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StringBuilder sb = new StringBuilder();
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foreach (KeyValuePair<CharEncoding.Encoding, DelimiterDef> kvp in mDelimiters) {
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sb.Append("[" + kvp.Key + ": " + kvp.Value + "]");
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}
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return sb.ToString();
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}
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public static DelimiterSet GetDefaultCharDelimiters() {
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DelimiterSet chrDel = new DelimiterSet();
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chrDel.Set(CharEncoding.Encoding.Ascii,
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new DelimiterDef(string.Empty, '\u2018', '\u2019', string.Empty));
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chrDel.Set(CharEncoding.Encoding.HighAscii,
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new DelimiterDef(string.Empty, '\u2018', '\u2019', " | $80"));
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chrDel.Set(CharEncoding.Encoding.C64Petscii,
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new DelimiterDef("pet:", '\u2018', '\u2019', string.Empty));
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chrDel.Set(CharEncoding.Encoding.C64ScreenCode,
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new DelimiterDef("scr:", '\u2018', '\u2019', string.Empty));
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return chrDel;
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}
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public static DelimiterSet GetDefaultStringDelimiters() {
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DelimiterSet strDel = new DelimiterSet();
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strDel.Set(CharEncoding.Encoding.Ascii,
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new DelimiterDef(string.Empty, '\u201c', '\u201d', string.Empty));
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strDel.Set(CharEncoding.Encoding.HighAscii,
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new DelimiterDef("\u2191", '\u201c', '\u201d', string.Empty));
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strDel.Set(CharEncoding.Encoding.C64Petscii,
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new DelimiterDef("pet:", '\u201c', '\u201d', string.Empty));
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strDel.Set(CharEncoding.Encoding.C64ScreenCode,
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new DelimiterDef("scr:", '\u201c', '\u201d', string.Empty));
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return strDel;
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}
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/// <summary>
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/// Serializes a DelimiterSet.
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/// </summary>
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/// <remarks>
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/// Can't use Javascript from a .NET Standard library. XmlSerializer doesn't
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/// handle Lists or Dictionaries. Do it the old-fashioned way.
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/// </remarks>
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public string Serialize() {
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Debug.Assert(mDelimiters.Count < 10);
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StringBuilder sb = new StringBuilder();
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sb.Append('*'); // if the format changes, start with something else
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foreach (KeyValuePair<CharEncoding.Encoding, DelimiterDef> kvp in mDelimiters) {
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string name = kvp.Key.ToString();
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AddLenString(sb, name);
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AddLenString(sb, kvp.Value.Prefix);
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sb.Append(kvp.Value.OpenDelim);
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sb.Append(kvp.Value.CloseDelim);
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AddLenString(sb, kvp.Value.Suffix);
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}
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sb.Append('!');
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return sb.ToString();
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}
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private void AddLenString(StringBuilder sb, string str) {
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sb.Append(str.Length.ToString());
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sb.Append(',');
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sb.Append(str);
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}
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public static DelimiterSet Deserialize(string cereal) {
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try {
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DelimiterSet delimSet = new DelimiterSet();
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int offset = 0;
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if (cereal[offset++] != '*') {
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throw new Exception("missing leading asterisk");
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}
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while (cereal[offset] != '!') {
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string str = GetLenString(cereal, ref offset);
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if (!Enum.TryParse(str, out CharEncoding.Encoding enc)) {
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Debug.WriteLine("Ignoring unknown encoding " + str);
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enc = CharEncoding.Encoding.Unknown;
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}
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string prefix = GetLenString(cereal, ref offset);
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char open = cereal[offset++];
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char close = cereal[offset++];
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string suffix = GetLenString(cereal, ref offset);
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if (enc != CharEncoding.Encoding.Unknown) {
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delimSet.Set(enc, new DelimiterDef(prefix, open, close, suffix));
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}
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}
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return delimSet;
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} catch (Exception ex) {
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Debug.WriteLine("DelimiterSet deserialization failed: " + ex.Message);
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return new DelimiterSet();
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}
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}
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private static string GetLenString(string str, ref int offset) {
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int commaIndex = str.IndexOf(',', offset);
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if (commaIndex < 0) {
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throw new Exception("no comma in length string");
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}
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string lenStr = str.Substring(offset, commaIndex - offset);
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int len = int.Parse(lenStr);
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string resultStr = str.Substring(commaIndex + 1, len);
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offset = commaIndex + 1 + len;
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return resultStr;
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}
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}
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#endregion Text Delimiters
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private static readonly char[] sHexCharsLower = {
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
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};
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private static readonly char[] sHexCharsUpper = {
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
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};
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/// <summary>
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/// Formatter configuration options. Fixed at construction time.
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/// </summary>
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private FormatConfig mFormatConfig;
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/// <summary>
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/// Get a copy of the format config.
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/// </summary>
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public FormatConfig Config { get { return mFormatConfig; } }
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// Cached bits and pieces.
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char mHexFmtChar;
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string mHexPrefix;
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string mAccChar;
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char mXregChar;
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char mYregChar;
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char mSregChar;
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// Format string for offsets.
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private string mOffset24Format;
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// Format strings for addresses.
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private string mAddrFormatNoBank;
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private string mAddrFormatWithBank;
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// Generated opcode strings. The index is the bitwise OR of the opcode value and
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// the disambiguation value. In most cases this just helps us avoid calling
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// ToUpper incessantly.
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private Dictionary<int, string> mOpcodeStrings = new Dictionary<int, string>();
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// Generated pseudo-opcode strings.
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private Dictionary<string, string> mPseudoOpStrings = new Dictionary<string, string>();
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// Generated format strings for operands. The index is the bitwise OR of the
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// address mode and the disambiguation value.
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private Dictionary<int, string> mOperandFormats = new Dictionary<int, string>();
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// Generated format strings for bytes.
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private const int MAX_BYTE_DUMP = 4;
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private string[] mByteDumpFormats = new string[MAX_BYTE_DUMP];
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// Generated format strings for hex values.
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private string[] mHexValueFormats = new string[4];
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private string mFullLineCommentDelimiterPlus;
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// Buffer to use when generating hex dump lines.
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private char[] mHexDumpBuffer;
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private CharEncoding.Convert mHexDumpCharConv;
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/// <summary>
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/// A 16-character array with 0-9a-f, for hex conversions. The letters will be
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/// upper or lower case, per the format config.
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/// </summary>
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public char[] HexDigits {
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get {
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return mFormatConfig.mUpperHexDigits ? sHexCharsUpper : sHexCharsLower;
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}
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}
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/// <summary>
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/// String to put between the operand and the end-of-line comment.
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/// </summary>
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public string EndOfLineCommentDelimiter {
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get { return mFormatConfig.mEndOfLineCommentDelimiter; }
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}
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/// <summary>
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/// String to put at the start of a line with a full-line comment.
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/// </summary>
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public string FullLineCommentDelimiter {
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get { return mFullLineCommentDelimiterPlus; }
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}
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/// <summary>
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/// String to put at the start of a line that has a box comment. This is usually
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/// blank, as it's only needed if the assembler doesn't recognize the box character
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/// as a comment.
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/// </summary>
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public string BoxLineCommentDelimiter {
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get { return mFormatConfig.mBoxLineCommentDelimiter; }
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}
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/// <summary>
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/// Prefix for non-unique address labels.
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/// </summary>
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public string NonUniqueLabelPrefix {
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get { return mFormatConfig.mNonUniqueLabelPrefix; }
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}
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/// <summary>
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/// When formatting a symbol with an offset, if this flag is set, generate code that
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/// assumes the assembler applies the adjustment, then shifts the result. If not,
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/// assume the assembler shifts the operand before applying the adjustment.
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/// </summary>
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public FormatConfig.ExpressionMode ExpressionMode {
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get { return mFormatConfig.mExpressionMode; }
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}
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/// <summary>
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/// Point at which to wrap long operands, such as strings and dense hex.
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/// </summary>
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public int OperandWrapLen {
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get { return mFormatConfig.mOperandWrapLen; }
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}
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/// <summary>
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/// Constructor. Initializes various fields based on the configuration. We want to
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/// do as much work as possible here.
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/// </summary>
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public Formatter(FormatConfig config) {
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mFormatConfig = config; // copy struct
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mFormatConfig.Normalize();
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if (string.IsNullOrEmpty(mFormatConfig.mNonUniqueLabelPrefix)) {
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mFormatConfig.mNonUniqueLabelPrefix = "@";
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}
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if (mFormatConfig.mAddSpaceLongComment) {
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mFullLineCommentDelimiterPlus = mFormatConfig.mFullLineCommentDelimiterBase + " ";
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} else {
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mFullLineCommentDelimiterPlus = mFormatConfig.mFullLineCommentDelimiterBase;
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}
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// Prep the static parts of the hex dump buffer.
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mHexDumpBuffer = new char[73];
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for (int i = 0; i < mHexDumpBuffer.Length; i++) {
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mHexDumpBuffer[i] = ' ';
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}
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mHexDumpBuffer[6] = ':';
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// Resolve boolean flags to character or string values.
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if (mFormatConfig.mUpperHexDigits) {
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mHexFmtChar = 'X';
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} else {
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mHexFmtChar = 'x';
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}
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if (mFormatConfig.mSuppressHexNotation) {
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mHexPrefix = "";
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} else {
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mHexPrefix = "$";
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}
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if (mFormatConfig.mSuppressImpliedAcc) {
|
|
mAccChar = "";
|
|
} else if (mFormatConfig.mUpperOperandA) {
|
|
mAccChar = "A";
|
|
} else {
|
|
mAccChar = "a";
|
|
}
|
|
if (mFormatConfig.mUpperOperandXY) {
|
|
mXregChar = 'X';
|
|
mYregChar = 'Y';
|
|
} else {
|
|
mXregChar = 'x';
|
|
mYregChar = 'y';
|
|
}
|
|
if (mFormatConfig.mUpperOperandS) {
|
|
mSregChar = 'S';
|
|
} else {
|
|
mSregChar = 's';
|
|
}
|
|
|
|
for (int index = 0; index < 4; index++) {
|
|
int width = (index + 1) * 2;
|
|
mHexValueFormats[index] = mHexFmtChar + width.ToString();
|
|
}
|
|
|
|
// process the delimiter patterns
|
|
DelimiterSet chrDelim = mFormatConfig.mCharDelimiters;
|
|
if (chrDelim == null) {
|
|
Debug.WriteLine("NOTE: char delimiters not set");
|
|
chrDelim = DelimiterSet.GetDefaultCharDelimiters();
|
|
}
|
|
|
|
switch (mFormatConfig.mHexDumpCharConvMode) {
|
|
case FormatConfig.CharConvMode.Ascii:
|
|
mHexDumpCharConv = CharEncoding.ConvertAscii;
|
|
break;
|
|
case FormatConfig.CharConvMode.LowHighAscii:
|
|
mHexDumpCharConv = CharEncoding.ConvertLowAndHighAscii;
|
|
break;
|
|
case FormatConfig.CharConvMode.C64Petscii:
|
|
mHexDumpCharConv = CharEncoding.ConvertC64Petscii;
|
|
break;
|
|
case FormatConfig.CharConvMode.C64ScreenCode:
|
|
mHexDumpCharConv = CharEncoding.ConvertC64ScreenCode;
|
|
break;
|
|
default:
|
|
// most some things don't configure the hex dump; this is fine
|
|
mHexDumpCharConv = CharEncoding.ConvertLowAndHighAscii;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a 24-bit offset value as hex.
|
|
/// </summary>
|
|
/// <param name="offset">Offset to format.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatOffset24(int offset) {
|
|
if (string.IsNullOrEmpty(mOffset24Format)) {
|
|
mOffset24Format = "+{0:" + mHexFmtChar + "6}";
|
|
}
|
|
return string.Format(mOffset24Format, offset & 0x0fffff);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a value in hexadecimal. The width is padded with zeroes to make the
|
|
/// length even (so it'll be $00, $0100, $010000, etc.) If minDigits is nonzero,
|
|
/// additional zeroes may be added.
|
|
/// </summary>
|
|
/// <param name="value">Value to format, up to 32 bits.</param>
|
|
/// <param name="minDigits">Minimum width, in printed digits (e.g. 4 is "0000").</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatHexValue(int value, int minDigits) {
|
|
int width = minDigits > 2 ? minDigits : 2;
|
|
if (width < 8 && value > 0xffffff) {
|
|
width = 8;
|
|
} else if (width < 6 && value > 0xffff) {
|
|
width = 6;
|
|
} else if (width < 4 && value > 0xff) {
|
|
width = 4;
|
|
}
|
|
int index = (width / 2) - 1;
|
|
return mHexPrefix + value.ToString(mHexValueFormats[index]);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Format a value as a number in the specified base.
|
|
/// </summary>
|
|
/// <param name="value">Value to format.</param>
|
|
/// <param name="numBase">Numeric base (2, 10, or 16).</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatValueInBase(int value, int numBase) {
|
|
switch (numBase) {
|
|
case 2:
|
|
return FormatBinaryValue(value, 8);
|
|
case 10:
|
|
return FormatDecimalValue(value);
|
|
case 16:
|
|
return FormatHexValue(value, 2);
|
|
default:
|
|
Debug.Assert(false);
|
|
return "???";
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a 32-bit integer value as unsigned decimal.
|
|
/// </summary>
|
|
/// <param name="value">Value to convert.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatDecimalValue(int value) {
|
|
return ((uint)value).ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a value in binary, padding with zeroes so the length is a multiple of 8.
|
|
/// </summary>
|
|
/// <param name="value">Value to convert.</param>
|
|
/// <param name="minDigits">Minimum width, in printed digits. Will be rounded up to
|
|
/// a multiple of 8.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatBinaryValue(int value, int minDigits) {
|
|
string binaryStr = Convert.ToString(value, 2);
|
|
int desiredWidth = ((binaryStr.Length + 7) / 8) * 8;
|
|
if (desiredWidth < minDigits) {
|
|
desiredWidth = ((minDigits + 7) / 8) * 8;
|
|
}
|
|
return '%' + binaryStr.PadLeft(desiredWidth, '0');
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a single-character operand. Output will be a delimited printable character
|
|
/// when possible, a hex value when the converted character is unprintable.
|
|
/// </summary>
|
|
/// <param name="value">Value to format. Could be a 16-bit immediate value.</param>
|
|
/// <param name="enc">Character encoding to use for value.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatCharacterValue(int value, CharEncoding.Encoding enc) {
|
|
if (value < 0 || value > 0xff) {
|
|
return FormatHexValue(value, 2);
|
|
}
|
|
|
|
DelimiterDef delimDef = mFormatConfig.mCharDelimiters.Get(enc);
|
|
if (delimDef == null) {
|
|
return FormatHexValue(value, 2);
|
|
}
|
|
|
|
string fmt = delimDef.FormatStr;
|
|
Debug.Assert(fmt != null);
|
|
|
|
CharEncoding.Convert conv;
|
|
switch (enc) {
|
|
case CharEncoding.Encoding.Ascii:
|
|
conv = CharEncoding.ConvertAscii;
|
|
break;
|
|
case CharEncoding.Encoding.HighAscii:
|
|
conv = CharEncoding.ConvertHighAscii;
|
|
break;
|
|
case CharEncoding.Encoding.C64Petscii:
|
|
conv = CharEncoding.ConvertC64Petscii;
|
|
break;
|
|
case CharEncoding.Encoding.C64ScreenCode:
|
|
conv = CharEncoding.ConvertC64ScreenCode;
|
|
break;
|
|
default:
|
|
return FormatHexValue(value, 2);
|
|
}
|
|
|
|
char ch = conv((byte)value);
|
|
if (ch == CharEncoding.UNPRINTABLE_CHAR || ch == delimDef.OpenDelim ||
|
|
ch == delimDef.CloseDelim) {
|
|
// We might be able to do better with delimiter clashes, e.g. '\'', but
|
|
// that's assembler-specific.
|
|
return FormatHexValue(value, 2);
|
|
} else {
|
|
// Possible optimization: replace fmt with a prefix/suffix pair, and just concat
|
|
return string.Format(fmt, ch);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a 16- or 24-bit address value. This is intended for the left column
|
|
/// of something (hex dump, code listing), not as an operand.
|
|
/// </summary>
|
|
/// <param name="address">Address to format.</param>
|
|
/// <param name="showBank">Set to true for CPUs with 24-bit address spaces.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatAddress(int address, bool showBank) {
|
|
if (mAddrFormatNoBank == null) {
|
|
mAddrFormatNoBank = "{0:" + mHexFmtChar + "4}";
|
|
mAddrFormatWithBank = "{0:" + mHexFmtChar + "2}/{1:" + mHexFmtChar + "4}";
|
|
}
|
|
if (showBank) {
|
|
return string.Format(mAddrFormatWithBank, address >> 16, address & 0xffff);
|
|
} else {
|
|
return string.Format(mAddrFormatNoBank, address & 0xffff);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a local variable label, prepending an identifying prefix if one has been
|
|
/// specified.
|
|
/// </summary>
|
|
public string FormatVariableLabel(string label) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mLocalVariableLabelPrefix)) {
|
|
return mFormatConfig.mLocalVariableLabelPrefix + label;
|
|
} else {
|
|
return label;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats an adjustment. Small values are formatted as "+decimal" or "-decimal",
|
|
/// larger values are formatted as hex. If no adjustment is required, an empty string
|
|
/// is returned.
|
|
/// </summary>
|
|
/// <param name="adjValue">Adjustment value.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatAdjustment(int adjValue) {
|
|
if (adjValue == 0) {
|
|
return string.Empty;
|
|
} else if (Math.Abs(adjValue) >= 256) {
|
|
// not using mHexPrefix here, since dec vs. hex matters
|
|
if (adjValue < 0) {
|
|
return "-$" + (-adjValue).ToString(mHexValueFormats[0]);
|
|
} else {
|
|
return "+$" + adjValue.ToString(mHexValueFormats[0]);
|
|
}
|
|
} else {
|
|
// This formats in decimal with a leading '+' or '-'. To avoid adding a plus
|
|
// on zero, we'd use "+#;-#;0", but we took care of the zero case above.
|
|
return adjValue.ToString("+0;-#");
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats the instruction opcode mnemonic, and caches the result.
|
|
///
|
|
/// It may be necessary to modify the mnemonic for some assemblers, e.g. LDA from a
|
|
/// 24-bit address might need to be LDAL, even if the high byte is nonzero.
|
|
/// </summary>
|
|
/// <param name="op">Opcode to format</param>
|
|
/// <param name="wdis">Width disambiguation specifier.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatOpcode(OpDef op, OpDef.WidthDisambiguation wdis) {
|
|
// TODO(someday): using op.Opcode as the key is a bad idea, as the operation may
|
|
// not be the same on different CPUs. We currently rely on the caller to discard
|
|
// the Formatter when the CPU definition changes. We'd be better off keying off of
|
|
// the OpDef object and factoring wdis in some other way.
|
|
int key = op.Opcode | ((int)wdis << 8);
|
|
if (!mOpcodeStrings.TryGetValue(key, out string opcodeStr)) {
|
|
// Not found, generate value.
|
|
opcodeStr = FormatMnemonic(op.Mnemonic, wdis);
|
|
|
|
// Memoize.
|
|
mOpcodeStrings[key] = opcodeStr;
|
|
}
|
|
return opcodeStr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats the string as an opcode mnemonic.
|
|
///
|
|
/// It may be necessary to modify the mnemonic for some assemblers, e.g. LDA from a
|
|
/// 24-bit address might need to be LDAL, even if the high byte is nonzero.
|
|
/// </summary>
|
|
/// <param name="mnemonic">Instruction mnemonic string.</param>
|
|
/// <param name="wdis">Width disambiguation specifier.</param>
|
|
/// <returns></returns>
|
|
public string FormatMnemonic(string mnemonic, OpDef.WidthDisambiguation wdis) {
|
|
string opcodeStr = mnemonic;
|
|
if (wdis == OpDef.WidthDisambiguation.ForceDirect) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceDirectOpcodeSuffix)) {
|
|
opcodeStr += mFormatConfig.mForceDirectOpcodeSuffix;
|
|
}
|
|
} else if (wdis == OpDef.WidthDisambiguation.ForceAbs) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceAbsOpcodeSuffix)) {
|
|
opcodeStr += mFormatConfig.mForceAbsOpcodeSuffix;
|
|
}
|
|
} else if (wdis == OpDef.WidthDisambiguation.ForceLong ||
|
|
wdis == OpDef.WidthDisambiguation.ForceLongMaybe) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceLongOpcodeSuffix)) {
|
|
opcodeStr += mFormatConfig.mForceLongOpcodeSuffix;
|
|
}
|
|
} else {
|
|
Debug.Assert(wdis == OpDef.WidthDisambiguation.None);
|
|
}
|
|
if (mFormatConfig.mUpperOpcodes) {
|
|
opcodeStr = opcodeStr.ToUpperInvariant();
|
|
}
|
|
return opcodeStr;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates an operand format.
|
|
/// </summary>
|
|
/// <param name="addrMode">Addressing mode.</param>
|
|
/// <param name="wdis">Width disambiguation mode.</param>
|
|
/// <returns>Format string.</returns>
|
|
private string GenerateOperandFormat(OpDef.AddressMode addrMode,
|
|
OpDef.WidthDisambiguation wdis) {
|
|
string fmt;
|
|
string wdisStr = string.Empty;
|
|
|
|
if (wdis == OpDef.WidthDisambiguation.ForceDirect) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceDirectOperandPrefix)) {
|
|
wdisStr = mFormatConfig.mForceDirectOperandPrefix;
|
|
}
|
|
} else if (wdis == OpDef.WidthDisambiguation.ForceAbs) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceAbsOperandPrefix)) {
|
|
wdisStr = mFormatConfig.mForceAbsOperandPrefix;
|
|
}
|
|
} else if (wdis == OpDef.WidthDisambiguation.ForceLong) {
|
|
if (!string.IsNullOrEmpty(mFormatConfig.mForceLongOperandPrefix)) {
|
|
wdisStr = mFormatConfig.mForceLongOperandPrefix;
|
|
}
|
|
} else if (wdis == OpDef.WidthDisambiguation.ForceLongMaybe) {
|
|
// Don't add a width disambiguator to an operand that is unambiguously long.
|
|
} else {
|
|
Debug.Assert(wdis == OpDef.WidthDisambiguation.None);
|
|
}
|
|
|
|
switch (addrMode) {
|
|
case AddressMode.Abs:
|
|
case AddressMode.AbsLong:
|
|
case AddressMode.BlockMove:
|
|
case AddressMode.StackAbs:
|
|
case AddressMode.DP:
|
|
case AddressMode.DPPCRel: // BBR/BBS
|
|
case AddressMode.PCRel:
|
|
case AddressMode.PCRelLong: // BRL
|
|
case AddressMode.StackInt: // COP and two-byte BRK
|
|
case AddressMode.StackPCRelLong: // PER
|
|
case AddressMode.WDM:
|
|
fmt = wdisStr + "{0}";
|
|
break;
|
|
case AddressMode.AbsIndexX:
|
|
case AddressMode.AbsIndexXLong:
|
|
case AddressMode.DPIndexX:
|
|
fmt = wdisStr + "{0}," + mXregChar;
|
|
break;
|
|
case AddressMode.DPIndexY:
|
|
case AddressMode.AbsIndexY:
|
|
fmt = wdisStr + "{0}," + mYregChar;
|
|
break;
|
|
case AddressMode.AbsIndexXInd:
|
|
case AddressMode.DPIndexXInd:
|
|
fmt = wdisStr + "({0}," + mXregChar + ")";
|
|
break;
|
|
case AddressMode.AbsInd:
|
|
case AddressMode.DPInd:
|
|
case AddressMode.StackDPInd: // PEI
|
|
fmt = "({0})";
|
|
break;
|
|
case AddressMode.AbsIndLong:
|
|
case AddressMode.DPIndLong:
|
|
// IIgs monitor uses "()" for AbsIndLong, E&L says "[]". Assemblers
|
|
// seem to expect the latter.
|
|
fmt = "[{0}]";
|
|
break;
|
|
case AddressMode.Acc:
|
|
fmt = mAccChar;
|
|
break;
|
|
case AddressMode.DPIndIndexY:
|
|
fmt = "({0})," + mYregChar;
|
|
break;
|
|
case AddressMode.DPIndIndexYLong:
|
|
fmt = "[{0}]," + mYregChar;
|
|
break;
|
|
case AddressMode.Imm:
|
|
case AddressMode.ImmLongA:
|
|
case AddressMode.ImmLongXY:
|
|
fmt = "#{0}";
|
|
break;
|
|
case AddressMode.Implied:
|
|
case AddressMode.StackPull:
|
|
case AddressMode.StackPush:
|
|
case AddressMode.StackRTI:
|
|
case AddressMode.StackRTL:
|
|
case AddressMode.StackRTS:
|
|
fmt = string.Empty;
|
|
break;
|
|
case AddressMode.StackRel:
|
|
fmt = "{0}," + mSregChar;
|
|
break;
|
|
case AddressMode.StackRelIndIndexY:
|
|
fmt = "({0}," + mSregChar + ")," + mYregChar;
|
|
break;
|
|
|
|
case AddressMode.Unknown:
|
|
default:
|
|
Debug.Assert(false);
|
|
fmt = "???";
|
|
break;
|
|
}
|
|
|
|
return fmt;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats the instruction operand.
|
|
/// </summary>
|
|
/// <param name="op">Opcode definition (needed for address mode).</param>
|
|
/// <param name="contents">Label or numeric operand value.</param>
|
|
/// <param name="wdis">Width disambiguation value.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatOperand(OpDef op, string contents, OpDef.WidthDisambiguation wdis) {
|
|
Debug.Assert(((int)op.AddrMode & 0xff) == (int) op.AddrMode);
|
|
int key = (int) op.AddrMode | ((int)wdis << 8);
|
|
|
|
if (!mOperandFormats.TryGetValue(key, out string format)) {
|
|
format = mOperandFormats[key] = GenerateOperandFormat(op.AddrMode, wdis);
|
|
}
|
|
return string.Format(format, contents);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a pseudo-opcode.
|
|
/// </summary>
|
|
/// <param name="opstr">Pseudo-op string to format.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatPseudoOp(string opstr) {
|
|
if (!mPseudoOpStrings.TryGetValue(opstr, out string result)) {
|
|
if (mFormatConfig.mUpperPseudoOpcodes) {
|
|
result = mPseudoOpStrings[opstr] = opstr.ToUpperInvariant();
|
|
} else {
|
|
result = mPseudoOpStrings[opstr] = opstr;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates a format string for N hex bytes.
|
|
/// </summary>
|
|
/// <param name="len">Number of bytes to handle in the format.</param>
|
|
private void GenerateByteFormat(int len) {
|
|
Debug.Assert(len <= MAX_BYTE_DUMP);
|
|
|
|
StringBuilder sb = new StringBuilder(len * 7);
|
|
for (int i = 0; i < len; i++) {
|
|
if (i != 0 && mFormatConfig.mSpacesBetweenBytes) {
|
|
sb.Append(' ');
|
|
}
|
|
// e.g. "{0:x2}"
|
|
sb.Append("{" + i + ":" + mHexFmtChar + "2}");
|
|
}
|
|
mByteDumpFormats[len - 1] = sb.ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats 1-4 bytes as hex values.
|
|
/// </summary>
|
|
/// <param name="data">Data source.</param>
|
|
/// <param name="offset">Start offset within data array.</param>
|
|
/// <param name="length">Number of bytes to print. Fewer than this many may
|
|
/// actually appear.</param>
|
|
/// <returns>Formatted data string.</returns>
|
|
public string FormatBytes(byte[] data, int offset, int length) {
|
|
Debug.Assert(length > 0);
|
|
int printLen = length < MAX_BYTE_DUMP ? length : MAX_BYTE_DUMP;
|
|
if (string.IsNullOrEmpty(mByteDumpFormats[printLen - 1])) {
|
|
GenerateByteFormat(printLen);
|
|
}
|
|
string format = mByteDumpFormats[printLen - 1];
|
|
string result;
|
|
|
|
// The alternative is to allocate a temporary object[] and copy the integers
|
|
// into it, which requires boxing. We know we're only printing 1-4 bytes, so
|
|
// it's easier to just handle each case individually.
|
|
switch (printLen) {
|
|
case 1:
|
|
result = string.Format(format, data[offset]);
|
|
break;
|
|
case 2:
|
|
result = string.Format(format, data[offset], data[offset + 1]);
|
|
break;
|
|
case 3:
|
|
result = string.Format(format,
|
|
data[offset], data[offset + 1], data[offset + 2]);
|
|
break;
|
|
case 4:
|
|
result = string.Format(format,
|
|
data[offset], data[offset + 1], data[offset + 2], data[offset + 3]);
|
|
break;
|
|
default:
|
|
result = "INTERNAL ERROR";
|
|
break;
|
|
}
|
|
if (length > printLen) {
|
|
result += "...";
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats an end-of-line comment, prepending an end-of-line comment delimiter.
|
|
/// </summary>
|
|
/// <param name="comment">Comment string; may be empty.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatEolComment(string comment) {
|
|
if (string.IsNullOrEmpty(comment) ||
|
|
string.IsNullOrEmpty(mFormatConfig.mEndOfLineCommentDelimiter)) {
|
|
return comment;
|
|
} else {
|
|
return mFormatConfig.mEndOfLineCommentDelimiter + comment;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats a collection of bytes as a dense hex string.
|
|
/// </summary>
|
|
/// <param name="data">Data source.</param>
|
|
/// <param name="offset">Start offset within data array.</param>
|
|
/// <param name="length">Number of bytes to print.</param>
|
|
/// <returns>Formatted data string.</returns>
|
|
public string FormatDenseHex(byte[] data, int offset, int length) {
|
|
char[] hexChars = mFormatConfig.mUpperHexDigits ? sHexCharsUpper : sHexCharsLower;
|
|
char[] text;
|
|
if (mFormatConfig.mCommaSeparatedDense) {
|
|
text = new char[length * 4 - 1];
|
|
for (int i = 0; i < length; i++) {
|
|
byte val = data[offset + i];
|
|
text[i * 4] = '$';
|
|
text[i * 4 + 1] = hexChars[val >> 4];
|
|
text[i * 4 + 2] = hexChars[val & 0x0f];
|
|
if (i != length - 1) {
|
|
text[i * 4 + 3] = ',';
|
|
}
|
|
}
|
|
} else {
|
|
text = new char[length * 2];
|
|
for (int i = 0; i < length; i++) {
|
|
byte val = data[offset + i];
|
|
text[i * 2] = hexChars[val >> 4];
|
|
text[i * 2 + 1] = hexChars[val & 0x0f];
|
|
}
|
|
}
|
|
return new string(text);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns the number of characters output for each byte when formatting dense hex.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// This isn't quite right, because you don't need a comma after the very last element
|
|
/// in the list for comma-separated values. Handling this correctly for multi-line
|
|
/// items is more trouble than it's worth though.
|
|
/// </remarks>
|
|
public int CharsPerDenseByte {
|
|
get {
|
|
if (mFormatConfig.mCommaSeparatedDense) {
|
|
return 4;
|
|
} else {
|
|
return 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats up to 16 bytes of data into a single line hex dump, in this format:
|
|
/// <pre>012345: 00 11 22 33 44 55 66 77 88 99 aa bb cc dd ee ff 0123456789abcdef</pre>
|
|
/// </summary>
|
|
/// <param name="data">Reference to data.</param>
|
|
/// <param name="offset">Start offset.</param>
|
|
/// <returns>Formatted string.</returns>
|
|
public string FormatHexDump(byte[] data, int offset) {
|
|
int length = Math.Min(16, data.Length - offset);
|
|
FormatHexDumpCommon(data, offset, offset, length);
|
|
// this is the only allocation
|
|
return new string(mHexDumpBuffer);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats up to 16 bytes of data into a single line hex dump. The output is
|
|
/// appended to the StringBuilder.
|
|
/// </summary>
|
|
/// <param name="data">Reference to data.</param>
|
|
/// <param name="offset">Start offset.</param>
|
|
/// <param name="sb">StringBuilder that receives output.</param>
|
|
public void FormatHexDump(byte[] data, int offset, StringBuilder sb) {
|
|
int length = Math.Min(16, data.Length - offset);
|
|
FormatHexDumpCommon(data, offset, offset, length);
|
|
sb.Append(mHexDumpBuffer);
|
|
}
|
|
|
|
public void FormatHexDump(byte[] data, int offset, int addr, int length,
|
|
StringBuilder sb) {
|
|
FormatHexDumpCommon(data, offset, addr, length);
|
|
sb.Append(mHexDumpBuffer);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Formats up to 16 bytes of data into mHexDumpBuffer.
|
|
/// </summary>
|
|
private void FormatHexDumpCommon(byte[] data, int offset, int addr, int length) {
|
|
Debug.Assert(offset >= 0 && offset < data.Length);
|
|
Debug.Assert(data.Length < (1 << 24));
|
|
const int dataCol = 8;
|
|
const int asciiCol = 57;
|
|
|
|
char[] hexChars = mFormatConfig.mUpperHexDigits ? sHexCharsUpper : sHexCharsLower;
|
|
char[] outBuf = mHexDumpBuffer;
|
|
|
|
int skip = addr & 0x0f; // we skip this many entries...
|
|
offset -= skip; // ...so adjust offset to balance it
|
|
addr &= ~0x0f;
|
|
|
|
// address field
|
|
for (int i = 5; i >= 0; i--) {
|
|
outBuf[i] = hexChars[addr & 0x0f];
|
|
addr >>= 4;
|
|
}
|
|
|
|
// If addr doesn't start at xxx0, pad it.
|
|
int index;
|
|
for (index = 0; index < skip; index++) {
|
|
outBuf[dataCol + index * 3] = outBuf[dataCol + index * 3 + 1] =
|
|
outBuf[asciiCol + index] = ' ';
|
|
}
|
|
|
|
// hex digits and characters
|
|
for (int i = 0; i < length; i++) {
|
|
byte val = data[offset + index];
|
|
outBuf[dataCol + index * 3] = hexChars[val >> 4];
|
|
outBuf[dataCol + index * 3 + 1] = hexChars[val & 0x0f];
|
|
outBuf[asciiCol + index] = CharConv(val);
|
|
index++;
|
|
}
|
|
|
|
// for partial line, clear out previous contents
|
|
for (; index < 16; index++) {
|
|
outBuf[dataCol + index * 3] =
|
|
outBuf[dataCol + index * 3 + 1] =
|
|
outBuf[asciiCol + index] = ' ';
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts a byte into printable form according to the current hex dump
|
|
/// character conversion mode.
|
|
/// </summary>
|
|
/// <param name="val">Value to convert.</param>
|
|
/// <returns>Printable character.</returns>
|
|
private char CharConv(byte val) {
|
|
char ch = mHexDumpCharConv(val);
|
|
if (ch != CharEncoding.UNPRINTABLE_CHAR) {
|
|
return ch;
|
|
} else if (mFormatConfig.mHexDumpAsciiOnly) {
|
|
return '.';
|
|
} else {
|
|
// Certain values make the hex dump ListView freak out in WinForms, but work
|
|
// fine in WPF. The "control pictures" are a nice idea, but in practice they're
|
|
// unreadably small and provide no benefit. The black-diamond "replacement
|
|
// character" is dark and makes everything feel noisy. Middle-dot is subtle,
|
|
// but sufficiently different from a '.' to be useful.
|
|
|
|
//if (ch < 0x20) {
|
|
// return (char)(ch + '\u2400'); // Unicode "control pictures" block
|
|
//}
|
|
//return '\ufffd'; // Unicode "replacement character"
|
|
//return '\u00bf'; // INVERTED QUESTION MARK
|
|
|
|
return '\u00b7'; // MIDDLE DOT
|
|
}
|
|
}
|
|
}
|
|
}
|