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Also, updated LZ4FH sample, which needed to have explicit widths on a couple of zero-page pointers. Also, updated Zippy sample, which had a ton of unnecessary format entries for a couple of pointers.
70 lines
2.5 KiB
C#
70 lines
2.5 KiB
C#
// Copyright 2019 faddenSoft. All Rights Reserved.
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// See the LICENSE.txt file for distribution terms (Apache 2.0).
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using System;
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using System.Collections.Generic;
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using PluginCommon;
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namespace ExtensionScriptSample {
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/// <summary>
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/// Sample class for handling a JSR followed by an inline null-terminated string.
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/// </summary>
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public class InlineNullStringHandler : MarshalByRefObject, IPlugin, IPlugin_InlineJsr {
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private IApplication mAppRef;
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private byte[] mFileData;
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private int mInlineNullStringAddr; // jsr
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public string Identifier {
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get {
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return "Inline null-terminated ASCII string handler";
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}
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}
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public void Prepare(IApplication appRef, byte[] fileData, AddressTranslate addrTrans,
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List<PlSymbol> plSyms) {
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mAppRef = appRef;
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mFileData = fileData;
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mAppRef.DebugLog("InlineNullStringHandler(id=" +
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AppDomain.CurrentDomain.Id + "): prepare()");
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// reset this every time, in case they remove the label
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mInlineNullStringAddr = -1;
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foreach (PlSymbol sym in plSyms) {
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if (sym.Label == "PrintInlineZString") {
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mInlineNullStringAddr = sym.Value;
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break;
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}
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}
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mAppRef.DebugLog("PrintInlineZString @ $" + mInlineNullStringAddr.ToString("x6"));
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}
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public void CheckJsr(int offset, out bool noContinue) {
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noContinue = false;
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int target = Util.GetWord(mFileData, offset + 1, 2, false);
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if (target == mInlineNullStringAddr) {
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// search for the terminating null byte
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int nullOff = offset + 3;
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while (nullOff < mFileData.Length) {
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if (mFileData[nullOff] == 0) {
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break;
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}
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nullOff++;
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}
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if (nullOff == mFileData.Length) {
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mAppRef.DebugLog("Unable to find end of null-terminated string at +" +
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(offset+3).ToString("x6"));
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return;
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}
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// Assuming ASCII. This can be hard-coded, use auto-detection, or look
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// up a value in a project constant.
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mAppRef.SetInlineDataFormat(offset + 3, nullOff - (offset + 3) + 1,
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DataType.StringNullTerm, DataSubType.Ascii, null);
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}
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}
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}
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}
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