Weiyi Wang wwylele

3DS CEC (StreetPass) Documentation

Overall Model

The CEC system module consists of two main components: mailbox manager and StreetPass communicator. Both work on the system save 00010026, which stores all mailbox information and message data. A simplified diagram of CEC communication model is

Application <=> Mailbox Manager <=> System Save (Mailbox) <=> StreetPass communicator <=> NWM/network <=> StreetPass communicator of another 3DS <=> ...

Many CEC service (cecd:u and cecd:s) functions are interfaces exposed from the mailbox manager, which read and write the system save. The mailbox manager is essentially a thick layer over direct file IO, which performances data initialization and verification on top of raw system data read/write.

	y^2+y=x^3-x^2-10x-20
	N = 11

	* X *
	x(j, jN) = sum{m,n}(`Nume_j{m}_jN{n}` * j^m * jN^n) / sum{m,n}(`Deno_j{m}_jN{n}` * j^m * jN^n)

	Nume_j0_jN0 = 1367113046330556187051562246931529529235173270511187871278506926568049114456858932866795018649600000000000000000000000000000000
	Nume_j0_jN1 = 172077374923733266210058979716334157205392753267437347302297658019755587516877358694295477944320000000000000000000000000000
	Nume_j0_jN2 = -552789772512187113151284771321330488507779196392441002872875423014679654464608838881247441715200000000000000000000000000
	Nume_j0_jN3 = 115306161437651131485119279159886334295579735205039155402832479989832602929746998006911074304000000000000000000000000

	use std::ops::{Index, IndexMut, Add};
	use std::cmp::Ord;

	#[derive(Clone, Copy)]
	pub enum NodeStatus {
	Unknown,
	Visiting(usize),
	Visited,
	}

	use std::collections::*;
	use std::hash::Hash;
	use std::iter::FromIterator;


	trait SetFunc<T> {
	type Set: IntoIterator + FromIterator<T>;
	}

	struct BTreeSetF;

	#include <3ds.h>
	#include <citro3d.h>
	#include <tex3ds.h>
	#include <string.h>
	#include <stdlib.h>
	#include "vshader_shbin.h"

	#define CLEAR_COLOR 0x68B0D8FF

	#define DISPLAY_TRANSFER_FLAGS \

	#include <3ds.h>
	#include <citro3d.h>
	#include <tex3ds.h>
	#include <string.h>
	#include <stdlib.h>
	#include "vshader_shbin.h"

	#define CLEAR_COLOR 0x68B0D8FF

	#define DISPLAY_TRANSFER_FLAGS \

	////////////////////////////////////////////////////////////////
	/// Programmable Vertex Shader

	#version 330 core
	#extension GL_ARB_separate_shader_objects : enable // only presents for separable shader

	struct pica_uniforms {
	bool b[16];
	uvec4 i[4];
	vec4 f[96];

	#include <3ds.h>
	#include <stdio.h>
	#include <citro3d.h>
	#include <string.h>
	#include "vshader_shbin.h"

	#define CLEAR_COLOR 0x68B0D8FF

	#define DISPLAY_TRANSFER_FLAGS \
	(GX_TRANSFER_FLIP_VERT(0) \| GX_TRANSFER_OUT_TILED(0) \| GX_TRANSFER_RAW_COPY(0) \| \