mirror of
https://github.com/fadden/6502bench.git
synced 2024-05-31 22:41:37 +00:00
dfd5bcab1b
Early data sheets listed BRK as one byte, but RTI after a BRK skips the following byte, effectively making BRK a 2-byte instruction. Sometimes, such as when diassembling Apple /// SOS code, it's handy to treat it that way explicitly. This change makes two-byte BRKs optional, controlled by a checkbox in the project settings. In the system definitions it defaults to true for Apple ///, false for all others. ACME doesn't allow BRK to have an arg, and cc65 only allows it for 65816 code (?), so it's emitted as a hex blob for those assemblers. Anyone wishing to target those assemblers should stick to 1-byte mode. Extension scripts have to switch between formatting one byte of inline data and formatting an instruction with a one-byte operand. A helper function has been added to the plugin Util class. To get some regression test coverage, 2022-extension-scripts has been configured to use two-byte BRK. Also, added/corrected some SOS constants. See also issue #44.
166 lines
6.5 KiB
C#
166 lines
6.5 KiB
C#
/*
|
|
* Copyright 2018 faddenSoft
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
using System;
|
|
using System.Collections.Generic;
|
|
|
|
namespace PluginCommon {
|
|
/// <summary>
|
|
/// Extension script "plugins" must implement this interface.
|
|
/// </summary>
|
|
public interface IPlugin {
|
|
/// <summary>
|
|
/// Identification string. Contents are arbitrary, but should briefly identify the
|
|
/// purpose of the plugin, e.g. "Apple II ProDOS 8 MLI call handler". It may
|
|
/// contain version information, but should not be expected to be machine-readable.
|
|
/// </summary>
|
|
string Identifier { get; }
|
|
|
|
/// <summary>
|
|
/// Prepares the plugin for action. Called at the start of the code analysis pass.
|
|
///
|
|
/// In the current implementation, the file data will be the same every time,
|
|
/// because it doesn't change after the project is opened. However, this could
|
|
/// change if we add a descramble feature.
|
|
/// </summary>
|
|
/// <param name="appRef">Reference to application interface.</param>
|
|
/// <param name="fileData">65xx code and data.</param>
|
|
/// <param name="addrMap">Mapping between offsets and addresses.</param>
|
|
/// <param name="plSyms">Symbols available to plugins, in no particular order. All
|
|
/// platform, project, and user labels are included; auto-generated symbols and
|
|
/// local variables are not.</param>
|
|
void Prepare(IApplication appRef, byte[] fileData, AddressTranslate addrTrans,
|
|
List<PlSymbol> plSyms);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Extension scripts that want to handle inline JSRs must implement this interface.
|
|
/// </summary>
|
|
public interface IPlugin_InlineJsr {
|
|
/// <summary>
|
|
/// Checks to see if code/data near a JSR instruction should be formatted.
|
|
///
|
|
/// The file data is guaranteed to hold all bytes of the JSR (offset + 2).
|
|
/// </summary>
|
|
/// <param name="offset">Offset of the JSR instruction.</param>
|
|
/// <param name="noContinue">Set to true if the JSR doesn't actually return.</param>
|
|
void CheckJsr(int offset, out bool noContinue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Extension scripts that want to handle inline JSLs must implement this interface.
|
|
/// </summary>
|
|
public interface IPlugin_InlineJsl {
|
|
/// <summary>
|
|
/// Checks to see if code/data near a JSL instruction should be formatted.
|
|
///
|
|
/// The file data is guaranteed to hold all bytes of the JSL (offset + 3).
|
|
/// </summary>
|
|
/// <param name="offset">Offset of the JSL instruction.</param>
|
|
/// <param name="noContinue">Set to true if the JSL doesn't actually return.</param>
|
|
void CheckJsl(int offset, out bool noContinue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Extension scripts that want to handle inline BRKs must implement this interface.
|
|
/// </summary>
|
|
public interface IPlugin_InlineBrk {
|
|
/// <summary>
|
|
/// Checks to see if code/data near a BRK instruction should be formatted.
|
|
///
|
|
/// The file data is only guaranteed to hold the BRK opcode byte.
|
|
/// </summary>
|
|
/// <param name="offset">Offset of the BRK instruction.</param>
|
|
/// <param name="isTwoBytes">True if the CPU is configured for two-byte BRKs.</param>
|
|
/// <param name="noContinue">Set to true if the BRK doesn't actually return.</param>
|
|
void CheckBrk(int offset, bool isTwoBytes, out bool noContinue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Interfaces provided by the application for use by plugins. An IApplication instance
|
|
/// is passed to the plugin as an argument Prepare().
|
|
/// </summary>
|
|
public interface IApplication {
|
|
/// <summary>
|
|
/// Sends a debug message to the application. This can be useful when debugging scripts.
|
|
/// (Use DEBUG > Show Analyzer Output to view it.)
|
|
/// </summary>
|
|
/// <param name="msg">Message to send.</param>
|
|
void DebugLog(string msg);
|
|
|
|
/// <summary>
|
|
/// Specifies operand formatting.
|
|
/// </summary>
|
|
/// <param name="offset">File offset of opcode.</param>
|
|
/// <param name="subType">Sub-type. Must be appropriate for NumericLE.</param>
|
|
/// <param name="label">Optional symbolic label.</param>
|
|
/// <returns>True if the change was made, false if it was rejected.</returns>
|
|
bool SetOperandFormat(int offset, DataSubType subType, string label);
|
|
|
|
/// <summary>
|
|
/// Formats file data as inline data.
|
|
/// </summary>
|
|
/// <param name="offset">File offset.</param>
|
|
/// <param name="length">Length of item.</param>
|
|
/// <param name="type">Type of item. Must be NumericLE, NumericBE, or Dense.</param>
|
|
/// <param name="subType">Sub-type. Must be appropriate for type.</param>
|
|
/// <param name="label">Optional symbolic label.</param>
|
|
/// <returns>True if the change was made, false if it was rejected (e.g. because
|
|
/// the area is already formatted, or contains code).</returns>
|
|
/// <exception cref="PluginException">If something is really wrong, e.g. data runs
|
|
/// off end of file.</exception>
|
|
bool SetInlineDataFormat(int offset, int length, DataType type,
|
|
DataSubType subType, string label);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Data format type.
|
|
/// </summary>
|
|
public enum DataType {
|
|
Unknown = 0,
|
|
NumericLE,
|
|
NumericBE,
|
|
StringGeneric,
|
|
StringReverse,
|
|
StringNullTerm,
|
|
StringL8,
|
|
StringL16,
|
|
StringDci,
|
|
Dense,
|
|
Fill
|
|
}
|
|
|
|
/// <summary>
|
|
/// Data format sub-type.
|
|
/// </summary>
|
|
public enum DataSubType {
|
|
// No sub-type specified.
|
|
None = 0,
|
|
|
|
// For NumericLE/BE
|
|
Hex,
|
|
Decimal,
|
|
Binary,
|
|
Address,
|
|
Symbol,
|
|
|
|
// Strings and NumericLE/BE (single character)
|
|
Ascii,
|
|
HighAscii,
|
|
C64Petscii,
|
|
C64Screen
|
|
}
|
|
}
|