SonoSooS

This document is intended to document certain inner workings of the CPU.

There have been efforts by emu-russia and gekkio to have the CPU decapped, and so we have the decode ROM accessible to us. This means, that we know exactly what each opcode does (besides some nuanced behavior related to HALT, STOP, and some state management related to interrupts and power saving which are hard to untangle).

Table of contents

• Terminology
• Fetch and stuff
• Regular instructions
• Opcode holes (not implemented opcodes)

SonoSooS

#include <3ds.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

//#include "testimage_bin.h"


void PrettyScroll(char* txt, u32 val)
{

SonoSooS

'''
midiplay2 rev1 - MIDI player written in Python 3.6 for Windows
Copyright (C) 2021 Sono (https://github.com/SonoSooS)
All Rights Reserved
'''

import sys
import struct
import io
import ctypes

SonoSooS

--[[--
  bandcamp.lua - Bandcamp album/track player plugin
  Copyright (C) 2016-2018 Sono (https://github.com/MarcuzD)
  
  This program is free software: you can redistribute it and/or modify  
  it under the terms of the GNU General Public License as   
  published by the Free Software Foundation, either version 3, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful, but 

SonoSooS

--[[--
  aaasoundcloud_single.lua - SonundCloud track parser
  Copyright (C) 2016-2018 Sono (https://github.com/MarcuzD)
  
  This program is free software: you can redistribute it and/or modify  
  it under the terms of the GNU General Public License as   
  published by the Free Software Foundation, either version 3, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful, but 

SonoSooS

/*
    Make Discord great again!
    Copyright(C) 2017-2018 Sono
    All Rights Reserved
*/

#include <stdio.h>
#include <string.h>
#include <windows.h>
#include <tlhelp32.h>

SonoSooS

#hdr
#include <3ds.h>

#end

#src
#include "stdmacro.h"
#end

typedef void (*SignalHandler)(u32 notif);

SonoSooS

--[[--
  SonundCloud set (playlist) parser
  Copyright (C) 2016-2018 Sono (https://github.com/MarcuzD)
  
  This program is free software: you can redistribute it and/or modify  
  it under the terms of the GNU General Public License as   
  published by the Free Software Foundation, either version 3, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful, but 

SonoSooS

--[[--
  SoundCloud user track player plugin
  Copyright (C) 2016-2018 Sono (https://github.com/MarcuzD)
  
  This program is free software: you can redistribute it and/or modify  
  it under the terms of the GNU General Public License as   
  published by the Free Software Foundation, either version 3, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful, but 

SonoSooS

void chdir(const char* path)
{
    if(*path == '/')
    {
        strncpy(root, path, 262);
    }
    else
    {
        int len = 262 - strnlen(root, 262);