GBDK 2020 Docs
4.1.1
API Documentation for GBDK 2020
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#include <types.h>
Go to the source code of this file.
Variables | |
volatile UBYTE | shadow_PPUCTRL |
volatile UBYTE | shadow_PPUMASK |
volatile UBYTE | bkg_scroll_x |
volatile UBYTE | bkg_scroll_y |
Defines that let the NES hardware registers be accessed from C.
#define __BYTES extern UBYTE |
#define __BYTE_REG extern volatile UBYTE |
#define PPUCTRL ((uint8_t*)0x2000); |
#define PPUCTRL_NMI 0b10000000 |
#define PPUCTRL_SPR_8X8 0b00000000 |
#define PPUCTRL_SPR_8X16 0b00100000 |
#define PPUCTRL_BG_CHR 0b00010000 |
#define PPUCTRL_SPR_CHR 0b00001000 |
#define PPUCTRL_INC32 0b00000100 |
#define PPUMASK ((uint8_t*)0x2001); |
#define PPUMASK_BLUE 0b10000000 |
#define PPUMASK_RED 0b01000000 |
#define PPUMASK_GREEN 0b00100000 |
#define PPUMASK_SHOW_SPR 0b00010000 |
#define PPUMASK_SHOW_BG 0b00001000 |
#define PPUMASK_SHOW_SPR_LC 0b00000100 |
#define PPUMASK_SHOW_BG_LC 0b00000010 |
#define PPUMASK_MONOCHROME 0b00000001 |
#define PPUSTATUS ((uint8_t*)0x2002); |
#define OAMADDR ((uint8_t*)0x2003); |
#define OAMDATA ((uint8_t*)0x2004); |
#define PPUSCROLL ((uint8_t*)0x2005); |
#define PPUADDR ((uint8_t*)0x2006); |
#define PPUDATA ((uint8_t*)0x2007); |
#define OAMDMA ((uint8_t*)0x4014); |
#define DEVICE_SCREEN_X_OFFSET 0 |
#define DEVICE_SCREEN_Y_OFFSET 0 |
#define DEVICE_SCREEN_WIDTH 32 |
#define DEVICE_SCREEN_HEIGHT 30 |
#define DEVICE_SCREEN_BUFFER_WIDTH 32 |
#define DEVICE_SCREEN_BUFFER_HEIGHT 30 |
#define DEVICE_SCREEN_MAP_ENTRY_SIZE 2 |
#define DEVICE_SPRITE_PX_OFFSET_X 0 |
#define DEVICE_SPRITE_PX_OFFSET_Y -1 |
#define DEVICE_WINDOW_PX_OFFSET_X 0 |
#define DEVICE_WINDOW_PX_OFFSET_Y 0 |
#define DEVICE_SCREEN_PX_WIDTH (DEVICE_SCREEN_WIDTH * 8) |
#define DEVICE_SCREEN_PX_HEIGHT (DEVICE_SCREEN_HEIGHT * 8) |
volatile UBYTE shadow_PPUCTRL |
volatile UBYTE shadow_PPUMASK |
volatile UBYTE bkg_scroll_x |
volatile UBYTE bkg_scroll_y |