atari.inc

6502 c compiler free open source

FRMADR	= $68		;##rev2## 2-byte source address

RAMTOP	= $6A		;RAM SIZE DEFINED BY POWER ON LOGIC
BUFCNT	= $6B		;BUFFER COUNT
BUFSTR	= $6C		;EDITOR GETCH POINTER
BITMSK	= $6E		;BIT MASK
SHFAMT	= $6F		;1-byte shift amount for pixel justifucation
ROWAC	= $70		;2-byte draw working row
COLAC	= $72		;2-byte draw working column
ENDPT	= $74		;2-byte end point
DELTAR	= $76		;1-byte row difference
DELTAC	= $77		;2-byte column difference
KEYDEF	= $79		;##1200xl## 2-byte key definition table address
;ROWINC	= $79		;##old##
;COLINC	= $7A		;##old##
SWPFLG	= $7B		;NON-0 1F TXT AND REGULAR RAM IS SWAPPED
HOLDCH	= $7C		;CH IS MOVED HERE IN KGETCH BEFORE CNTL & SH
INSDAT	= $7D		;1-byte temporary
COUNTR	= $7E		;2-byte draw iteration count

; Floating Point Package Page Zero Address Equates

FR0	= $D4		;6-byte register 0
FR0M	= $D5		;##rev2## 5-byte register 0 mantissa
QTEMP	= $D9		;##rev2## 1-byte temporary

FRE	= $DA		;6-byte (internal) register E

FR1	= $E0		;FP REG1
FR1M	= $E1		;##rev2## 5-byte register 1 mantissa

FR2	= $E6		;6-byte (internal) register 2

FRX	= $EC		;1-byte temporary

EEXP	= $ED		;VALUE OF E

FRSIGN	= $EE		;##rev2## 1-byte floating point sign
NSIGN	= $EE		;SIGN OF #

PLYCNT	= $EF		;##rev2## 1-byte polynomial degree
ESIGN	= $EF		;SIGN OF EXPONENT

SGNFLG	= $F0		;##rev2## 1-byte sign flag
FCHRFLG	= $F0		;1ST CHAR FLAG

XFMFLG	= $F1		;##rev2## 1-byte transform flag
DIGRT	= $F1		;# OF DIGITS RIGHT OF DECIMAL

CIX	= $F2		;CURRENT INPUT INDEX
INBUFF	= $F3		;POINTS TO USER'S LINE INPUT BUFFER

ZTEMP1	= $F5		;2-byte temporary
ZTEMP4	= $F7		;2-byte temporary
ZTEMP3	= $F9		;2-byte temporary

;DEGFLG	= $FB		;##old## same as RADFLG
;RADFLG	= $FB		;##old## 0=RADIANS, 6=DEGREES

FLPTR	= $FC		;2-byte floating point number pointer
FPTR2	= $FE		;2-byte floating point number pointer

;-------------------------------------------------------------------------
; Page Two Address Equates
;-------------------------------------------------------------------------

INTABS	= $0200		;INTERRUPT RAM

VDSLST	= $0200		;DISPLAY LIST NMI VECTOR
VPRCED	= $0202		;PROCEED LINE IRQ VECTOR
VINTER	= $0204		;INTERRUPT LINE IRQ VECTOR
VBREAK	= $0206		;SOFTWARE BREAK (00) INSTRUCTION IRQ VECTOR
VKEYBD	= $0208		;POKEY KEYBOARD IRQ VECTOR
VSERIN	= $020A		;POKEY SERIAL INPUT READY IRQ
VSEROR	= $020C		;POKEY SERIAL OUTPUT READY IRQ
VSEROC	= $020E		;POKEY SERIAL OUTPUT COMPLETE IRQ
VTIMR1	= $0210		;POKEY TIMER 1 IRG
VTIMR2	= $0212		;POKEY TIMER 2 IRG
VTIMR4	= $0214		;POKEY TIMER 4 IRG
VIMIRQ	= $0216		;IMMEDIATE IRG VECTOR
CDTMV1	= $0218		;COUNT DOWN TIMER 1
CDTMV2	= $021A		;COUNT DOWN TIMER 2
CDTMV3	= $021C		;COUNT DOWN TIMER 3
CDTMV4	= $021E		;COUNT DOWN TIMER 4
CDTMV5	= $0220		;COUNT DOWN TIMER 5
VVBLKI	= $0222		;IMMEDIATE VERTICAL BLANK NMI VECTOR
VVBLKD	= $0224		;DEFERRED VERTICAL BLANK NMI VECTOR
CDTMA1	= $0226		;COUNT DOWN TIMER 1 JSR ADDRESS
CDTMA2	= $0228		;COUNT DOWN TIMER 2 JSR ADDRESS
CDTMF3	= $022A		;COUNT DOWN TIMER 3 FLAG
SRTIMR	= $022B		;SOFTWARE REPEAT TIMER
CDTMF4	= $022C		;COUNT DOWN TIMER 4 FLAG
INTEMP	= $022D		;IAN'S TEMP
CDTMF5	= $022E		;COUNT DOWN TIMER FLAG 5
SDMCTL	= $022F		;SAVE DMACTL REGISTER
SDLSTL	= $0230		;SAVE DISPLAY LIST LOW BYTE
SDLSTH	= $0231		;SAVE DISPLAY LIST HI BYTE
SSKCTL	= $0232		;SKCTL REGISTER RAM
LCOUNT	= $0233		;##1200xl## 1-byte relocating loader record
LPENH	= $0234		;LIGHT PEN HORIZONTAL VALUE
LPENV	= $0235		;LIGHT PEN VERTICAL VALUE
BRKKY	= $0236		;BREAK KEY VECTOR
;RELADR	= $0238		;##1200xl## 2-byte relocatable loader address
VPIRQ	= $0238		;##rev2## 2-byte parallel device IRQ vector
CDEVIC	= $023A		;COMMAND FRAME BUFFER - DEVICE
CCOMND	= $023B		;COMMAND
CAUX1	= $023C		;COMMAND AUX BYTE 1
CAUX2	= $023D		;COMMAND AUX BYTE 2

TEMP	= $023E		;TEMPORARY RAM CELL

ERRFLG	= $023F		;ERROR FLAG - ANY DEVICE ERROR EXCEPT TIME OUT

DFLAGS	= $0240		;DISK FLAGS FROM SECTOR ONE
DBSECT	= $0241		;NUMBER OF DISK BOOT SECTORS
BOOTAD	= $0242		;ADDRESS WHERE DISK BOOT LOADER WILL 13E PUT
COLDST	= $0244		;COLDSTART FLAG (1=IN MIDDLE OF COLDSTART>
RECLEN	= $0245		;##1200xl## 1-byte relocating loader record length
DSKTIM	= $0246		;DISK TIME OUT REGISTER
;LINBUF	= $0247		;##old## CHAR LINE BUFFER
PDVMSK	= $0247		;##rev2## 1-byte parallel device selection mask
SHPDVS	= $0248		;##rev2## 1-byte PDVS (parallel device select)
PDIMSK	= $0249		;##rev2## 1-byte parallel device IRQ selection
RELADR	= $024A		;##rev2## 2-byte relocating loader relative adr.
PPTMPA	= $024C		;##rev2## 1-byte parallel device handler temporary
PPTMPX	= $024D		;##rev2## 1-byte parallel device handler temporary

CHSALT	= $026B		;##1200xl## 1-byte character set alternate
VSFLAG	= $026C		;##1200xl## 1-byte fine vertical scroll count
KEYDIS	= $026D		;##1200xl## 1-byte keyboard disable
FINE	= $026E		;##1200xl## 1-byte fine scrolling mode
GPRIOR	= $026F		;GLOBAL PRIORITY CELL

PADDL0	= $0270		;1-byte potentiometer 0
PADDL1	= $0271		;1-byte potentiometer 1
PADDL2	= $0272		;1-byte potentiometer 2
PADDL3	= $0273		;1-byte potentiometer 3
PADDL4	= $0274		;1-byte potentiometer 4
PADDL5	= $0275		;1-byte potentiometer 5
PADDL6	= $0276		;1-byte potentiometer 6
PADDL7	= $0277		;1-byte potentiometer 7

STICK0	= $0278		;1-byte joystick 0
STICK1	= $0279		;1-byte joystick 1
STICK2	= $027A		;1-byte joystick 2
STICK3	= $027B		;1-byte joystick 3

PTRIG0	= $027C		;1-byte paddle trigger 0
PTRIG1	= $027D		;1-byte paddle trigger 1
PTRIG2	= $027E		;1-byte paddle trigger 2
PTRIG3	= $027F		;1-byte paddle trigger 3
PTRIG4	= $0280		;1-byte paddle trigger 4
PTRIG5	= $0281		;1-byte paddle trigger 5
PTRIG6	= $0281		;1-byte paddle trigger 6
PTRIG7	= $0283		;1-byte paddle trigger 7

STRIG0	= $0284		;1-byte joystick trigger 0
STRIG1	= $0285		;1-byte joystick trigger 1
STRIG2	= $0286		;1-byte joystick trigger 2
STRIG3	= $0287		;1-byte joystick trigger 3

;CSTAT	= $0288		;##old## cassette status register
HIBYTE	= $0288		;##1200xl## 1-byte relocating loader high byte
WMODE	= $0289		;1-byte cassette WRITE mode
BLIM	= $028A		;1-byte cassette buffer limit
IMASK	= $028B		;##rev2## (not used)
JVECK	= $028C		;2-byte jump vector or temporary
NEWADR	= $028E		;##1200xl## 2-byte relocating address
TXTROW	= $0290		;TEXT ROWCRS
TXTCOL	= $0291		;TEXT COLCRS
TINDEX	= $0293		;TEXT INDEX
TXTMSC	= $0294		;FOOLS CONVRT INTO NEW MSC
TXTOLD	= $0296		;OLDROW & OLDCOL FOR TEXT (AND THEN SOME)
;TMPX1	= $029C		;##old## 1-byte temporary register
CRETRY	= $029C		;##1200xl## 1-byte number of command frame retries
HOLD3	= $029D		;1-byte temporary
SUBTMP	= $029E		;1-byte temporary
HOLD2	= $029F		;1-byte (not used)
DMASK	= $02A0		;1-byte display (pixel location) mask
TMPLBT	= $02A1		;1-byte (not used)
ESCFLG	= $02A2		;ESCAPE FLAG
TABMAP	= $02A3		;15-byte (120 bit) tab stop bit map
LOGMAP	= $02B2		;LOGICAL LINE START BIT MAP
INVFLG	= $02B6		;INVERSE VIDEO FLAG (TOGGLED BY ATARI KEY)
FILFLG	= $02B7		;RIGHT FILL FLAG FOR DRAW
TMPROW	= $02B8		;1-byte temporary row
TMPCOL	= $02B9		;2-byte temporary column
SCRFLG	= $02BB		;SET IF SCROLL OCCURS
HOLD4	= $02BC		;TEMP CELL USED IN DRAW ONLY
;HOLD5	= $02BD		;##old## DITTO
DRETRY	= $02BD		;##1200xl## 1-byte number of device retries
SHFLOK	= $02BE		;1-byte shift/control lock flags
BOTSCR	= $02BF		;BOTTOM OF SCREEN   24 NORM 4 SPLIT

PCOLR0	= $02C0		;1-byte player-missile 0 color/luminance
PCOLR1	= $02C1		;1-byte player-missile 1 color/luminance
PCOLR2	= $02C2		;1-byte player-missile 2 color/luminance
PCOLR3	= $02C3		;1-byte player-missile 3 color/luminance

COLOR0	= $02C4		;1-byte playfield 0 color/luminance
COLOR1	= $02C5		;1-byte playfield 1 color/luminance
COLOR2	= $02C6		;1-byte playfield 2 color/luminance
COLOR3	= $02C7		;1-byte playfield 3 color/luminance

COLOR4	= $02C8		;1-byte background color/luminance

PARMBL	= $02C9		;##rev2## 6-byte relocating loader parameter
RUNADR	= $02C9		;##1200xl## 2-byte run address
HIUSED	= $02CB		;##1200xl## 2-byte highest non-zero page address
ZHIUSE	= $02CD		;##1200xl## 2-byte highest zero page address

OLDPAR	= $02CF		;##rev2## 6-byte relocating loader parameter
GBYTEA	= $02CF		;##1200xl## 2-byte GET-BYTE routine address
LOADAD	= $02D1		;##1200xl## 2-byte non-zero page load address
ZLOADA	= $02D3		;##1200xl## 2-byte zero page load address

DSCTLN	= $02D5		;##1200xl## 2-byte disk sector length
ACMISR	= $02D7		;##1200xl## 2-byte ACMI interrupt service routine
KRPDEL	= $02D9		;##1200xl## 1-byte auto-repeat delay
KEYREP	= $02DA		;##1200xl## 1-byte auto-repeat rate
NOCLIK	= $02DB		;##1200xl## 1-byte key click disable
HELPFG	= $02DC		;##1200xl## 1-byte HELP key flag (0 = no HELP)
DMASAV	= $02DD		;##1200xl## 1-byte SDMCTL save/restore
PBPNT	= $02DE		;##1200xl## 1-byte printer buffer pointer
PBUFSZ	= $02DF		;##1200xl## 1-byte printer buffer size

GLBABS	= $02E0		;4-byte global variables for non-DOS users
RUNAD	= $02E0		;##map## 2-byte binary file run address
INITAD	= $02E2		;##map## 2-byte binary file initialization address

RAMSIZ	= $02E4		;RAM SIZE (HI BYTE ONLY)
MEMTOP	= $02E5		;TOP OF AVAILABLE USER MEMORY
MEMLO	= $02E7		;BOTTOM OF AVAILABLE USER MEMORY
HNDLOD	= $02E9		;##1200xl## 1-byte user load flag
DVSTAT	= $02EA		;STATUS BUFFER
CBAUDL	= $02EE		;1-byte low cassette baud rate
CBAUDH	= $02EF		;1-byte high cassette baud rate
CRSINH	= $02F0		;CURSOR INHIBIT (00 = CURSOR ON)
KEYDEL	= $02F1		;KEY DELAY
CH1	= $02F2		;1-byte prior keyboard character
CHACT	= $02F3		;CHACTL REGISTER RAM
CHBAS	= $02F4		;CHBAS REGISTER RAM

NEWROW	= $02F5		;##1200xl## 1-byte draw destination row
NEWCOL	= $02F6		;##1200xl## 2-byte draw destination column
ROWINC	= $02F8		;##1200xl## 1-byte draw row increment
COLINC	= $02F9		;##1200xl## 1-byte draw column increment

CHAR	= $02FA		;1-byte internal character
ATACHR	= $02FB		;ATASCII CHARACTER
CH	= $02FC		;GLOBAL VARIABLE FOR KEYBOARD
FILDAT	= $02FD		;RIGHT FILL DATA <DRAW>
DSPFLG	= $02FE		;DISPLAY FLAG   DISPLAY CNTLS IF NON-ZERO
SSFLAG	= $02FF		;START/STOP FLAG FOR PAGING (CNTL 1). CLEARE

;-------------------------------------------------------------------------
; Page Three Address Equates
;-------------------------------------------------------------------------

DCB	= $0300		;DEVICE CONTROL BLOCK
DDEVIC	= $0300		;PERIPHERAL UNIT 1 BUS I.D. NUMBER
DUNIT	= $0301		;UNIT NUMBER
DCOMND	= $0302		;BUS COMMAND
DSTATS	= $0303		;COMMAND TYPE/STATUS RETURN
DBUFLO	= $0304		;1-byte low data buffer address
DBUFHI	= $0305		;1-byte high data buffer address
DTIMLO	= $0306		;DEVICE TIME OUT IN 1 SECOND UNITS
DUNUSE	= $0307		;UNUSED BYTE
DBYTLO	= $0308		;1-byte low number of bytes to transfer
DBYTHI	= $0309		;1-byte high number of bytes to transfer
DAUX1	= $030A		;1-byte first command auxiliary
DAUX2	= $030B		;1-byte second command auxiliary

TIMER1	= $030C		;INITIAL TIMER VALUE
;ADDCOR	= $030E		;##old## ADDITION CORRECTION
JMPERS	= $030E		;##1200xl## 1-byte jumper options
CASFLG	= $030F		;CASSETTE MODE WHEN SET
TIMER2	= $0310		;2-byte final baud rate timer value
TEMP1	= $0312		;TEMPORARY STORAGE REGISTER
;TEMP2	= $0314		;##old## TEMPORARY STORAGE REGISTER
TEMP2	= $0313		;##1200xl## 1-byte temporary 
PTIMOT	= $0314		;##1200xl## 1-byte printer timeout
TEMP3	= $0315		;TEMPORARY STORAGE REGISTER
SAVIO	= $0316		;SAVE SERIAL IN DATA PORT
TIMFLG	= $0317		;TIME OUT FLAG FOR BAUD RATE CORRECTION
STACKP	= $0318		;SIO STACK POINTER SAVE CELL
TSTAT	= $0319		;TEMPORARY STATUS HOLDER

HATABS	= $031A		;35-byte handler address table (was 38 bytes)
PUPBT1	= $033D		;##1200xl## 1-byte power-up validation byte 1
PUPBT2	= $033E		;##1200xl## 1-byte power-up validation byte 2
PUPBT3	= $033F		;##1200xl## 1-byte power-up validation byte 3

IOCB	= $0340		;I/O CONTROL BLOCKS
ICHID	= $0340		;HANDLER INDEX NUMBER (FF=IOCB FREE)
ICDNO	= $0341		;DEVICE NUMBER (DRIVE NUMBER)
ICCOM	= $0342		;COMMAND CODE
ICSTA	= $0343		;STATUS OF LAST IOCB ACTION
ICBAL	= $0344		;1-byte low buffer address
ICBAH	= $0345		;1-byte high buffer address
ICPTL	= $0346		;1-byte low PUT-BYTE routine address - 1
ICPTH	= $0347		;1-byte high PUT-BYTE routine address - 1
ICBLL	= $0348		;1-byte low buffer length
ICBLH	= $0349		;1-byte high buffer length
ICAX1	= $034A		;1-byte first auxiliary information
ICAX2	= $034B		;1-byte second auxiliary information
ICAX3	= $034C		;1-byte third auxiliary information
ICAX4	= $034D		;1-byte fourth auxiliary information
ICAX5	= $034E		;1-byte fifth auxiliary information
ICSPR	= $034F		;SPARE BYTE

PRNBUF	= $03C0		;PRINTER BUFFER
SUPERF	= $03E8		;##1200xl## 1-byte editor super function flag
CKEY	= $03E9		;##1200xl## 1-byte cassette boot request flag
CASSBT	= $03EA		;##1200xl## 1-byte cassette boot flag
CARTCK	= $03EB		;##1200xl## 1-byte cartridge equivalence check
DERRF	= $03EC		;##rev2## 1-byte screen OPEN error flag

; Remainder of Page Three Not Cleared upon Reset

ACMVAR	= $03ED		;##1200xl## 11 bytes reserved for ACMI
BASICF	= $03F8		;##rev2## 1-byte BASIC switch flag
MINTLK	= $03F9		;##1200xl## 1-byte ACMI module interlock
GINTLK	= $03FA		;##1200xl## 1-byte cartridge interlock
CHLINK	= $03FB		;##1200xl## 2-byte loaded handler chain link
CASBUF	= $03FD		;CASSETTE BUFFER

;-------------------------------------------------------------------------
; Page Four/Five Address Equates
;-------------------------------------------------------------------------

; USER AREA STARTS HERE AND GOES TO END OF PAGE FIVE
USAREA	= $0480		;128 bytes reserved for application

LBPR1	= $057E		;LBUFF PREFIX 1
LBPR2	= $057F		;LBUFF PREFIX 2
LBUFF	= $0580		;128-byte line buffer

PLYARG	= $05E0		;6-byte floating point polynomial argument
FPSCR	= $05E6		;6-byte floating point temporary
FPSCR1	= $05EC		;6-byte floating point temporary

;LBFEND	= $05FF		;##old## END OF LBUFF

;-------------------------------------------------------------------------
; Cartridge Address Equates
;-------------------------------------------------------------------------

CARTCS	= $BFFA		;##rev2## 2-byte cartridge coldstart address
CART	= $BFFC		;##rev2## 1-byte cartridge present indicator
CARTFG	= $BFFD		;##rev2## 1-byte cartridge flags
CARTAD	= $BFFE		;##rev2## 2-byte cartridge start vector

;-------------------------------------------------------------------------
; CTIA/GTIA Address Equates
;-------------------------------------------------------------------------

GTIA	= $D000		;CTIA/GTIA area

; Read/Write Addresses

CONSOL	= $D01F		;console switches and speaker control

; Read Addresses

M0PF	= $D000		;missile 0 and playfield collision
M1PF	= $D001		;missile 1 and playfield collision
M2PF	= $D002		;missile 2 and playfield collision