;
; C64 generic definitions. Stolen from Elite128
;


; ---------------------------------------------------------------------------
; Zero page, Commodore stuff

ST   		= $90		; IEC status byte

TIME            = $A0           ; 60 HZ clock
FNAM_LEN	= $B7		; Length of filename
SECADR		= $B9		; Secondary address
DEVNUM		= $BA		; Device number
KEY_COUNT      	= $C6		; Number of keys in input buffer
RVS             = $C7           ; Reverse flag
CURS_FLAG	= $CC		; 1 = cursor off
CURS_BLINK	= $CD		; Blink counter
CURS_CHAR	= $CE		; Character under the cursor
CURS_STATE	= $CF		; Cursor blink state
SCREEN_PTR	= $D1		; Pointer to current char in text screen
CURS_X		= $D3		; Cursor column
CURS_Y		= $D6		; Cursor row
CRAM_PTR	= $F3		; Pointer to current char in color RAM

CHARCOLOR       = $286
CURS_COLOR      = $287		; Color under the cursor
PALFLAG		= $2A6		; $01 = PAL, $00 = NTSC


; ---------------------------------------------------------------------------
; Kernal routines

; Direct entries
CLRSCR		= $E544
KBDREAD		= $E5B4

; ---------------------------------------------------------------------------
; Vector and other locations

IRQVec		= $0314
BRKVec		= $0316
NMIVec		= $0318

; ---------------------------------------------------------------------------
; I/O: VIC

VIC  		= $D000
VIC_SPR0_X	= $D000
VIC_SPR0_Y	= $D001
VIC_SPR1_X	= $D002
VIC_SPR1_Y	= $D003
VIC_SPR2_X	= $D004
VIC_SPR2_Y	= $D005
VIC_SPR3_X	= $D006
VIC_SPR3_Y	= $D007
VIC_SPR4_X	= $D008
VIC_SPR4_Y	= $D009
VIC_SPR5_X	= $D00A
VIC_SPR5_Y	= $D00B
VIC_SPR6_X	= $D00C
VIC_SPR6_Y	= $D00D
VIC_SPR7_X	= $D00E
VIC_SPR7_Y	= $D00F
VIC_SPR_HI_X	= $D010
VIC_SPR_ENA	= $D015
VIC_SPR_EXP_X	= $D017
VIC_SPR_EXP_Y	= $D01D
VIC_SPR_MCOLOR	= $D01C
VIC_SPR_BG_PRIO = $D01B

VIC_SPR_MCOLOR0 = $D025
VIC_SPR_MCOLOR1 = $D026

VIC_SPR0_COLOR	= $D027
VIC_SPR1_COLOR	= $D028
VIC_SPR2_COLOR	= $D029
VIC_SPR3_COLOR	= $D02A
VIC_SPR4_COLOR	= $D02B
VIC_SPR5_COLOR	= $D02C
VIC_SPR6_COLOR	= $D02D
VIC_SPR7_COLOR	= $D02E

VIC_CTRL1	= $D011
VIC_CTRL2	= $D016

VIC_HLINE	= $D012

VIC_VIDEO_ADR	= $D018

VIC_IRR		= $D019		; Interrupt request register
VIC_IMR		= $D01A		; Interrupt mask register

VIC_BORDERCOLOR = $D020
VIC_BG_COLOR0	= $D021
VIC_BG_COLOR1	= $D022
VIC_BG_COLOR2	= $D023
VIC_BG_COLOR3	= $D024

; 128 stuff:
VIC_KBD_128	= $D02F		; Extended kbd bits (visible in 64 mode)
VIC_CLK_128	= $D030		; Clock rate register (visible in 64 mode)


; ---------------------------------------------------------------------------
; I/O: SID

SID  		= $D400
SID_S1Lo	= $D400
SID_S1Hi	= $D401
SID_PB1Lo	= $D402
SID_PB1Hi	= $D403
SID_Ctl1	= $D404
SID_AD1		= $D405
SID_SUR1	= $D406

SID_S2Lo	= $D407
SID_S2Hi	= $D408
SID_PB2Lo	= $D409
SID_PB2Hi	= $D40A
SID_Ctl2	= $D40B
SID_AD2		= $D40C
SID_SUR2	= $D40D

SID_S3Lo	= $D40E
SID_S3Hi	= $D40F
SID_PB3Lo	= $D410
SID_PB3Hi	= $D411
SID_Ctl3	= $D412
SID_AD3		= $D413
SID_SUR3	= $D414

SID_FltLo	= $D415
SID_FltHi	= $D416
SID_FltCtl	= $D417
SID_Amp		= $D418
SID_ADConv1	= $D419
SID_ADConv2	= $D41A
SID_Noise	= $D41B
SID_Read3	= $D41C

; ---------------------------------------------------------------------------
; I/O: VDC (128 only)

VDC_INDEX	= $D600
VDC_DATA	= $D601

; ---------------------------------------------------------------------------
; I/O: CIAs

CIA1 		= $DC00
CIA1_PRA	= $DC00
CIA1_PRB	= $DC01
CIA1_DDRA	= $DC02
CIA1_DDRB	= $DC03
CIA1_ICR	= $DC0D
CIA1_CRA	= $DC0E
CIA1_CRB	= $DC0F

CIA2 		= $DD00
CIA2_PRA	= $DD00
CIA2_PRB	= $DD01
CIA2_DDRA	= $DD02
CIA2_DDRB	= $DD03
CIA2_ICR	= $DD0D
CIA2_CRA	= $DD0E
CIA2_CRB	= $DD0F

; ---------------------------------------------------------------------------
; Super CPU

SCPU_VIC_Bank1	= $D075
SCPU_Slow	= $D07A
SCPU_Fast	= $D07B
SCPU_EnableRegs = $D07E
SCPU_DisableRegs= $D07F
SCPU_Detect	= $D0BC


; ---------------------------------------------------------------------------
; Processor Port at $01

LORAM		= $01  		; Enable the basic rom
HIRAM		= $02  		; Enable the kernal rom
IOEN 		= $04  		; Enable I/O
CASSDATA	= $08  		; Cassette data
CASSPLAY	= $10  		; Cassette: Play
CASSMOT		= $20  		; Cassette motor on
TP_FAST		= $80  		; Switch Rossmoeller TurboProcess to fast mode

RAMONLY		= $F8  		; (~(LORAM | HIRAM | IOEN)) & $FF