; NES-related headers. Unlike the C64 and Stella developers, there is
; no standard nomenclature for these registers. It's not uncommon to
; see them hardcoded.

; PPU registers have reasonably standard names, at least.

.alias	PPUCTRL		$2000	; PPU Control Register #1
.alias	PPUMASK		$2001	; PPU Control Register #2
.alias	PPUSTATUS	$2002	; PPU Status Register
.alias	OAMADDR		$2003	; SPR-RAM Address Register
.alias	OAMDATA		$2004	; SPR-RAM I/O Register
.alias	PPUSCROLL	$2005	; VRAM Address Register #1 (Panning control)
.alias	PPUADDR		$2006	; VRAM Address Register #2 (Direct Address control)
.alias	PPUDATA		$2007	; VRAM I/O Register
.alias	OAMDMA		$4014	; Sprite DMA Register