parkertenbroeck/mips

A Java based Assembler and Emulator for the MIPS assembly language.

mips's Issues

Instruction [sltiu (ArithLogI) $t = ($s <SE(i))] will behave as and be assembled as [addiu (ArithLogI) $t = $s + SE(i)] due to conflict in ISA

Both [sltiu (ArithLogI) $t = ($s <SE(i))] and [addiu (ArithLogI) $t = $s + SE(i)] have the same OP code of 0b001001. Because of this Only one can be supported. See the MIPS ISA / Encoding reference
doc.zip
for more information

Add Option to change Colors/Themes for JFrame and Syntax Highlighting

Add Color Themes

Memory Paging

Create a Memory Paging system to improve memory usage

Add Arithmetic and Logical Instruction Assembly examples

Multi File Editing

Allow multiple files to be opened at once
Each file will be a tab alongside the top of the formatted text area
The file to act as the main will be the first tab to the left

Revamp the logging system

Convert all logging to use the java logger
add logging file so logs are saved

show the plugin name for every log it generates

Add File Cleanup in documents Directory

Remove old unwanted files stored in the Documents folder (Excluding User Projects)

Plugin Folders

Create a Plugin Folder System to allow each plugin to have and manage their own folder

Folders will be created with the same name and in the same directory as the plugin

Add Support for Multiple Assembly languages

Move to a plugin based system for assembly compiling and machine code execution

requirements

1. Has SystemCall Plugin dependencies.
2. Any SystemCall Plugins that are NOT written for the ISA will be disabled or unloaded and any Plugins that ARE written for the IAS will be loaded or enabled.

Replace current register GUI with a panel unique to each ISA to display internal state of CPU however fit

Runtime system calls will still be registered through the SystemCall plugin handler so that new system calls will be registered the same for all ISA implementations.

Assembly will be handled (Havent decided yet)
Other

Dependency System

Implement a dependency system for plugins

ex:
plugin x requires plugin y and z in order to work

Using Systemcall SCREEN_IS_KEY_PRESSED causes crashes at randon

When using the SCREEN_IS_KEY_PRESSED system call this error can happen

[Error] [RunTime] [System Call] System Call: SCREEN_IS_KEY_PRESSED from plugin: Screen
java.lang.NullPointerException
        at org.parker.mips.plugin.internal.syscall.Screen.isKeyPressed(Screen.java:85)
        at org.parker.mips.plugin.internal.syscall.ScreenSystemCalls$1.handleSystemCall(ScreenSystemCalls.java:26)
        at org.parker.mips.plugin.syscall.SystemCallPluginHandler.SystemCall(SystemCallPluginHandler.java:110)
        at org.parker.mips.processor.InstructionDecode$4.runInstruction(InstructionDecode.java:62)
        at org.parker.mips.processor.InstructionDecode.runInstruction(InstructionDecode.java:598)
        at org.parker.mips.processor.Processor.singleStep(Processor.java:116)
        at org.parker.mips.processor.Processor.run(Processor.java:70)
        at java.base/java.lang.Thread.run(Thread.java:834)

Fixed potential Memory leak in respect to Option observers

Whenever a new GUI was created that registered a value observer on an option the observer would not be removed at the end of the GUI component lifetime, This would also keep reference to any objects inside the observer. Now options are registered with a linked observer. an object (normally the caller) is passed into the addLinkedObserver method. This allows for the observer to be removed when the object is at the end of its lifetime (normally called when the window closes)

Complete Javadoc for SystemCallPlugin

Finish the Javadoc for the SystemCallPlugin class

Loading file when tab with no associated file is open causes crash

Finish definline PreProcessing statement

-add automatic memory label remapping to allow users to have non interfering memory labels inside of each inline command
-add option to have each statement be compiled ahead of time(cannot access memory lables outside of definline if this option is used)

UserIO not working

Remake Live Memory Editor / Viewer

For many updates the Live Memory Editor / Viewer has been ignored
-Allow for different views (dec, hex, bin, ascii)
-Allow live editing of memory values
-Allow for searching of memory by index or by memoryLable names
-Possibly allow for memory to be highlighted in a range say index 100- index 200 or MemoryLable1: - MemoryLable2:

Unify Documentation

Move all of the compiler Documentation into one HTML File
also Make appearance better?

Add changeable theme for GUI

Highlight Lines that have errors on the in the editor

Better Error Logging

Re write the error logging system inorder to give better indications of what has gone wrong

-This Mostly Applies to Loading and running plugins

Allow Memory to be loaded and saved to MXN files

Finish if PreProcessing statement

-currently no features of the preprocessing statement if are working

Remove Dissembler in favor of highlighting current line in editor

GUI refinement

Optimize the GUI so the frame wont lag as much when autoUpdating during the CPU auto run

Pre Processor System call Information

Allow the pre processor to request information about specific system calls ie. Their system call ID, if they have a hard or soft ID