Memory mapped arrays
[Memory Map]

These are some macros for easier access of various memory sections. They're all arrays or matrices, using the types that would be the most natural for that concept. More...

Palette
#define	pal_bg_mem   ((COLOR*)MEM_PAL)
	Background palette.
#define	pal_obj_mem   ((COLOR*)MEM_PAL_OBJ)
	Object palette.
#define	pal_bg_bank   ((PALBANK*)MEM_PAL)
	Background palette matrix.
#define	pal_obj_bank   ((PALBANK*)MEM_PAL_OBJ)
	Object palette matrix.
VRAM
#define	tile_mem   ( (CHARBLOCK*)MEM_VRAM)
	Charblocks, 4bpp tiles.
#define	tile8_mem   ((CHARBLOCK8*)MEM_VRAM)
	Charblocks, 8bpp tiles.
#define	tile_mem_obj   ( (CHARBLOCK*)MEM_VRAM_OBJ)
	Object charblocks, 4bpp tiles.
#define	tile8_mem_obj   ((CHARBLOCK8*)MEM_VRAM_OBJ)
	Object charblocks, 4bpp tiles.
#define	se_mem   ((SCREENBLOCK*)MEM_VRAM)
	Screenblocks as arrays.
#define	se_mat   ((SCREENMAT*)MEM_VRAM)
	Screenblock as matrices.
#define	vid_mem   ((COLOR*)MEM_VRAM)
	Main mode 3/5 frame as an array.
#define	m3_mem   ((M3LINE*)MEM_VRAM)
	Mode 3 frame as a matrix.
#define	m4_mem   ((M4LINE*)MEM_VRAM)
	Mode 4 first page as a matrix.
#define	m5_mem   ((M5LINE*)MEM_VRAM)
	Mode 5 first page as a matrix.
#define	vid_mem_front   ((COLOR*)MEM_VRAM)
	First page array.
#define	vid_mem_back   ((COLOR*)MEM_VRAM_BACK)
	Second page array.
#define	m4_mem_back   ((M4LINE*)MEM_VRAM_BACK)
	Mode 4 second page as a matrix.
#define	m5_mem_back   ((M5LINE*)MEM_VRAM_BACK)
	Mode 5 second page as a matrix.
OAM
#define	oam_mem   ((OBJ_ATTR*)MEM_OAM)
	Object attribute memory.
#define	obj_mem   ((OBJ_ATTR*)MEM_OAM)
	Object attribute memory.
#define	obj_aff_mem   ((OBJ_AFFINE*)MEM_OAM)
	Object affine memory.
ROM
#define	rom_mem   ((u16*)MEM_ROM)
	ROM pointer.
SRAM
#define	sram_mem   ((u8*)MEM_SRAM)
	SRAM pointer.

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Detailed Description

These are some macros for easier access of various memory sections. They're all arrays or matrices, using the types that would be the most natural for that concept.

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Define Documentation

#define m3_mem   ((M3LINE*)MEM_VRAM)

Mode 3 frame as a matrix.

m3_mem[y][x] = pixel (x, y) ( COLOR )

#define m4_mem   ((M4LINE*)MEM_VRAM)

Mode 4 first page as a matrix.

m4_mem[y][x] = pixel (x, y) ( u8 )

Note:

This is a byte-buffer. Not to be used for writing.

#define m4_mem_back   ((M4LINE*)MEM_VRAM_BACK)

Mode 4 second page as a matrix.

m4_mem[y][x] = pixel (x, y) ( u8 )

Note:

This is a byte-buffer. Not to be used for writing.

#define m5_mem   ((M5LINE*)MEM_VRAM)

Mode 5 first page as a matrix.

m5_mem[y][x] = pixel (x, y) ( COLOR )

#define m5_mem_back   ((M5LINE*)MEM_VRAM_BACK)

Mode 5 second page as a matrix.

m5_mem[y][x] = pixel (x, y) ( COLOR )

#define oam_mem   ((OBJ_ATTR*)MEM_OAM)

Object attribute memory.

oam_mem[i] = object i ( OBJ_ATTR )

#define obj_aff_mem   ((OBJ_AFFINE*)MEM_OAM)

Object affine memory.

obj_aff_mem[i] = object matrix i ( OBJ_AFFINE )

#define obj_mem   ((OBJ_ATTR*)MEM_OAM)

Object attribute memory.

oam_mem[i] = object i ( OBJ_ATTR )

#define pal_bg_bank   ((PALBANK*)MEM_PAL)

Background palette matrix.

pal_bg_bank[y] = bank y ( COLOR[ ] )
pal_bg_bank[y][x] = color color y*16+x ( COLOR )

#define pal_bg_mem   ((COLOR*)MEM_PAL)

Background palette.

pal_bg_mem[i] = color i ( COLOR )

#define pal_obj_bank   ((PALBANK*)MEM_PAL_OBJ)

Object palette matrix.

pal_obj_bank[y] = bank y ( COLOR[ ] )
pal_obj_bank[y][x] = color y*16+x ( COLOR )

#define pal_obj_mem   ((COLOR*)MEM_PAL_OBJ)

Object palette.

pal_obj_mem[i] = color i ( COLOR )

#define se_mat   ((SCREENMAT*)MEM_VRAM)

Screenblock as matrices.

se_mat[s] = screenblock s ( SCR_ENTRY[ ][ ] )
se_mat[s][y][x] = screenblock s, entry (x,y) ( SCR_ENTRY )

#define se_mem   ((SCREENBLOCK*)MEM_VRAM)

Screenblocks as arrays.

se_mem[y] = screenblock y ( SCR_ENTRY[ ] )
se_mem[y][x] = screenblock y, entry x ( SCR_ENTRY )

#define tile8_mem   ((CHARBLOCK8*)MEM_VRAM)

Charblocks, 8bpp tiles.

tile_mem[y] = charblock y ( TILE[ ] )
tile_mem[y][x] = block y, tile x ( TILE )

#define tile8_mem_obj   ((CHARBLOCK8*)MEM_VRAM_OBJ)

Object charblocks, 4bpp tiles.

tile_mem[y] = charblock y ( TILE[ ] )
tile_mem[y][x] = block y, tile x ( TILE )

#define tile_mem   ( (CHARBLOCK*)MEM_VRAM)

Charblocks, 4bpp tiles.

tile_mem[y] = charblock y ( TILE[ ] )
tile_mem[y][x] = block y, tile x ( TILE )

#define tile_mem_obj   ( (CHARBLOCK*)MEM_VRAM_OBJ)

Object charblocks, 4bpp tiles.

tile_mem[y] = charblock y ( TILE[ ] )
tile_mem[y][x] = block y, tile x ( TILE )

#define vid_mem   ((COLOR*)MEM_VRAM)

Main mode 3/5 frame as an array.

vid_mem[i] = pixel i ( COLOR )

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