From 9f10efa630ee991df9c6b56a55e022eeb5dd0b01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Le=20Bihan?= <clement.le-bihan@epitech.eu>
Date: Tue, 28 Jan 2020 16:29:18 +0100
Subject: [PATCH] PPU's constructor added and started read and write for the
 PPU

---
 sources/PPU/PPU.cpp | 58 +++++++++++++++++++++++++++++++++++++++++++++
 sources/PPU/PPU.hpp | 15 +++++++++++-
 2 files changed, 72 insertions(+), 1 deletion(-)

diff --git a/sources/PPU/PPU.cpp b/sources/PPU/PPU.cpp
index 90a06b1..2a1537a 100644
--- a/sources/PPU/PPU.cpp
+++ b/sources/PPU/PPU.cpp
@@ -3,3 +3,61 @@
 //
 
 #include "PPU.hpp"
+#include "../Exceptions/NotImplementedException.hpp"
+#include "../Exceptions/InvalidAddress.hpp"
+
+namespace ComSquare::PPU
+{
+	uint8_t PPU::read(uint24_t addr) {
+		switch (addr) {
+		case 0x34:
+			return this->mpy.mpyl;
+		case 0x35:
+			return this->mpy.mpym;
+		case 0x36:
+			return this->mpy.mpyh;
+		default:
+			throw InvalidAddress("PPU Internal Registers read", addr);
+		}
+	}
+
+	void PPU::write(uint24_t addr, uint8_t data) {
+		switch (addr) {
+		case 0x00:
+			this->inidisp.raw = data;
+			break;
+		case 0x01:
+			this->obsel.raw = data;
+			break;
+		case 0x02:
+			this->oamadd.oamaddl = data;
+			break;
+		case 0x03:
+			this->oamadd.oamaddh = data;
+			break;
+		case 0x04:
+			this->oamdata = data;
+			break;
+		case 0x05:
+			this->bgmode.raw = data;
+			break;
+		case 0x06:
+			this->mosaic.raw = data;
+			break;
+		case 0x07:
+			this->bg1sc.raw = data;
+			break;
+		case 0x08:
+			this->bg2sc.raw = data;
+			break;
+		case 0x09:
+			this->bg3sc.raw = data;
+			break;
+		case 0x0A:
+			this->bg4sc.raw = data;
+			break;
+		default:
+			throw InvalidAddress("PPU Internal Registers write", addr);
+		}
+	}
+}
\ No newline at end of file
diff --git a/sources/PPU/PPU.hpp b/sources/PPU/PPU.hpp
index 5972d55..28cdef2 100644
--- a/sources/PPU/PPU.hpp
+++ b/sources/PPU/PPU.hpp
@@ -6,11 +6,12 @@
 #define COMSQUARE_PPU_HPP
 
 #include <stdint-gcc.h>
+#include "../Memory/IMemory.hpp"
 
 namespace ComSquare::PPU
 {
 	//! @brief The struct containing all the registers the PPU
-	class PPU {
+	class PPU : public IMemory {
 	private:
 		//! @brief INIDISP Register (F-blank and Brightness)
 		union {
@@ -377,6 +378,18 @@ namespace ComSquare::PPU
 			};
 			uint32_t  mpy;
 		} mpy;
+	public:
+		explicit PPU() = default;
+		//! @brief Read data from the component.
+		//! @param addr The local address to read from (0x0 should refer to the first byte of this component).
+		//! @throw This function should thrown an InvalidAddress for address that are not mapped to the component.
+		//! @return Return the data at the address given as parameter.
+		uint8_t read(uint24_t addr) override;
+		//! @brief Write data to this component.
+		//! @param addr The local address to write data (0x0 should refer to the first byte of this component).
+		//! @param data The new data to write.
+		//! @throw This function should thrown an InvalidAddress for address that are not mapped to the component.
+		void write(uint24_t addr, uint8_t data) override;
 	};
 }
 #endif //COMSQUARE_PPU_HPP