periph_gba.h

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/*
 * Copyright (C) 2023 HAW Hamburg. All rights reserved.
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
 
#ifdef __cplusplus
extern "C"
{
#endif

#define REG32(ADDR) (*(uint32_t volatile (*))(ADDR))

#define REG16(ADDR) (*(uint16_t volatile (*))(ADDR))

#define MEM16(ADDR) ((uint16_t(*))(ADDR))

#define GBA_SCREEN_WIDTH (240)  
#define GBA_SCREEN_HEIGHT (160) 

#define GBA_DISPCNT REG16(0x4000000)

#define GBA_DISPCNT_BGMODE_0 0x0000    
#define GBA_DISPCNT_BGMODE_1 0x0001    
#define GBA_DISPCNT_BGMODE_2 0x0002    
#define GBA_DISPCNT_BGMODE_3 0x0003    
#define GBA_DISPCNT_BGMODE_4 0x0004    
#define GBA_DISPCNT_BGMODE_5 0x0005    
 
#define GBA_DISPCNT_SDBG_0 0x0100      
#define GBA_DISPCNT_SDBG_1 0x0200      
#define GBA_DISPCNT_SDBG_2 0x0400      
#define GBA_DISPCNT_SDBG_3 0x0800      
 
#define GBA_DISPCNT_SDOBJ 0x1000       

#define GBA_DISPSTAT REG16(0x4000004)

#define GBA_BG0CNT REG16(0x4000008)    
#define GBA_BG1CNT REG16(0x400000a)    
#define GBA_BG2CNT REG16(0x400000c)    
#define GBA_BG3CNT REG16(0x400000e)    

#define GBA_VRAM_PALETTE MEM16(0x5000000)

#define GBA_VRAM MEM16(0x6000000)
 
#ifdef __cplusplus
}
#endif