_b8PpuBg Struct Reference

Structure representing a background configuration command for the PPU (Pixel Processing Unit). More...

#include <ppu.h>

Public Attributes
unsigned	htile: 4
unsigned	na0: 8
unsigned	wtile: 4
unsigned	na1: 8
unsigned	code: 8
b8PpuBgTile *	cpuaddr
signed	vpix: 16
signed	upix: 16
unsigned	vwrap: 2
unsigned	uwrap: 2
unsigned	na2: 28

Detailed Description

Structure representing a background configuration command for the PPU (Pixel Processing Unit).

Member Data Documentation

code

unsigned _b8PpuBg::code

Command code for background configuration.

cpuaddr

b8PpuBgTile* _b8PpuBg::cpuaddr

Pointer to the background tile data in CPU memory.

htile

unsigned _b8PpuBg::htile

Number of tiles in the vertical direction, specified as a power of 2.

na0

unsigned _b8PpuBg::na0

Reserved, not used.

na1

unsigned _b8PpuBg::na1

Reserved, not used.

na2

unsigned _b8PpuBg::na2

Reserved, not used.

upix

signed _b8PpuBg::upix

Horizontal offset for the background.

uwrap

unsigned _b8PpuBg::uwrap

Horizontal wrapping mode (see B8_PPU_BG_WRAP_*).

vpix

signed _b8PpuBg::vpix

Vertical offset for the background.

vwrap

unsigned _b8PpuBg::vwrap

Vertical wrapping mode (see B8_PPU_BG_WRAP_*).

wtile

unsigned _b8PpuBg::wtile

Number of tiles in the horizontal direction, specified as a power of 2.

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The documentation for this struct was generated from the following file:

• include/b8/ppu.h