;;; -*- Mode: asm; indent-tabs-mode: t; tab-width: 8 -*-

	PROGSTART	= $080D	; just after BASIC header

	;; Misc
	CINV		= $0314	; Hardware IRQ vector
	
	;; CIA registers
	PRA		= $DC00
	PRB		= $DC01
	DDRA		= $DC02
	DDRB		= $DC03
	CIA_ICR		= $DC0D

	PRA2		= $DD00

	;; VIC-II registers
	VICBASE		= $D000
	SPRITE_0X	= VICBASE+0
	SPRITE_0Y	= VICBASE+1
	SPRITE_1X	= VICBASE+2
	SPRITE_1Y	= VICBASE+3
	SPRITE_2X	= VICBASE+4
	SPRITE_2Y	= VICBASE+5
	SPRITE_3X	= VICBASE+6
	SPRITE_3Y	= VICBASE+7
	SPRITE_4X	= VICBASE+8
	SPRITE_4Y	= VICBASE+9
	SPRITE_5X	= VICBASE+10
	SPRITE_5Y	= VICBASE+11
	SPRITE_6X	= VICBASE+12
	SPRITE_6Y	= VICBASE+13
	SPRITE_7X	= VICBASE+14
	SPRITE_7Y	= VICBASE+15
	SPRITE_X_MSB	= VICBASE+16
	YSCROLL_MODE	= VICBASE+17
	RASTER		= VICBASE+18
	;; ...
	SPRITE_ENABLE	= VICBASE+21
	XSCROLL_MODE	= VICBASE+22
	SPRITE_XPAND_Y	= VICBASE+23
	;; ...
	MEMPTR		= VICBASE+24
	VICINT		= VICBASE+25
	VICINTMASK	= VICBASE+26
	SPRITE_BG_PRIO	= VICBASE+27
	;; ...
	SPRITE_XPAND_X	= VICBASE+29
	SSCOL		= VICBASE+30
	;; ...
	BORDER		= VICBASE+32
	BGCOL0		= VICBASE+33
	BGCOL1		= VICBASE+34
	BGCOL2		= VICBASE+35
	BGCOL3		= VICBASE+36
	;; ...
	SPRITE_0C	= VICBASE+39
	SPRITE_1C	= VICBASE+40
	SPRITE_2C	= VICBASE+41
	SPRITE_3C	= VICBASE+42
	SPRITE_4C	= VICBASE+43
	SPRITE_5C	= VICBASE+44
	SPRITE_6C	= VICBASE+45
	SPRITE_7C	= VICBASE+46

	COLORMEM	= $D800

	;; SID registers
	SIDBASE		= $D400
	SIDF1H		= SIDBASE+1
	SIDF1L		= SIDBASE+2
	SIDCR1		= SIDBASE+4
	SIDAD1		= SIDBASE+5
	SIDSR1		= SIDBASE+6

	SIDFMV		= SIDBASE+24

	;; Macros

	.macro padto addr
	.repeat (addr - *)
	.byte 0
	.endrep
	.endmacro