mirror of
https://github.com/irmen/prog8.git
synced 2024-11-27 03:50:27 +00:00
244 lines
11 KiB
Lua
244 lines
11 KiB
Lua
; Prog8 definitions for the Commodore-64
|
|
; Including memory registers, I/O registers, Basic and Kernal subroutines.
|
|
;
|
|
; Written by Irmen de Jong (irmen@razorvine.net) - license: GNU GPL 3.0
|
|
;
|
|
; indent format: TABS, size=8
|
|
|
|
|
|
~ c64 {
|
|
const uword ESTACK_LO = $ce00 ; evaluation stack (lsb)
|
|
const uword ESTACK_HI = $cf00 ; evaluation stack (msb)
|
|
&ubyte SCRATCH_ZPB1 = $02 ; scratch byte 1 in ZP
|
|
&ubyte SCRATCH_ZPREG = $03 ; scratch register in ZP
|
|
&ubyte SCRATCH_ZPREGX = $fa ; temp storage for X register (stack pointer)
|
|
&uword SCRATCH_ZPWORD1 = $fb ; scratch word in ZP ($fb/$fc)
|
|
&uword SCRATCH_ZPWORD2 = $fd ; scratch word in ZP ($fd/$fe)
|
|
|
|
|
|
&ubyte TIME_HI = $a0 ; software jiffy clock, hi byte
|
|
&ubyte TIME_MID = $a1 ; .. mid byte
|
|
&ubyte TIME_LO = $a2 ; .. lo byte. Updated by IRQ every 1/60 sec
|
|
&ubyte STKEY = $91 ; various keyboard statuses (updated by IRQ)
|
|
&ubyte SFDX = $cb ; current key pressed (matrix value) (updated by IRQ)
|
|
|
|
&ubyte COLOR = $0286 ; cursor color
|
|
&ubyte HIBASE = $0288 ; screen base address / 256 (hi-byte of screen memory address)
|
|
&uword CINV = $0314 ; IRQ vector
|
|
&uword NMI_VEC = $FFFA ; 6502 nmi vector, determined by the kernal if banked in
|
|
&uword RESET_VEC = $FFFC ; 6502 reset vector, determined by the kernal if banked in
|
|
&uword IRQ_VEC = $FFFE ; 6502 interrupt vector, determined by the kernal if banked in
|
|
|
|
; the default addresses for the character screen chars and colors
|
|
const uword Screen = $0400 ; to have this as an array[40*25] the compiler would have to support array size > 255
|
|
const uword Colors = $d800 ; to have this as an array[40*25] the compiler would have to support array size > 255
|
|
|
|
; the default locations of the 8 sprite pointers (store address of sprite / 64)
|
|
&ubyte SPRPTR0 = 2040
|
|
&ubyte SPRPTR1 = 2041
|
|
&ubyte SPRPTR2 = 2042
|
|
&ubyte SPRPTR3 = 2043
|
|
&ubyte SPRPTR4 = 2044
|
|
&ubyte SPRPTR5 = 2045
|
|
&ubyte SPRPTR6 = 2046
|
|
&ubyte SPRPTR7 = 2047
|
|
&ubyte[8] SPRPTR = 2040 ; the 8 sprite pointers as an array.
|
|
|
|
|
|
; ---- VIC-II 6567/6569/856x registers ----
|
|
|
|
&ubyte SP0X = $d000
|
|
&ubyte SP0Y = $d001
|
|
&ubyte SP1X = $d002
|
|
&ubyte SP1Y = $d003
|
|
&ubyte SP2X = $d004
|
|
&ubyte SP2Y = $d005
|
|
&ubyte SP3X = $d006
|
|
&ubyte SP3Y = $d007
|
|
&ubyte SP4X = $d008
|
|
&ubyte SP4Y = $d009
|
|
&ubyte SP5X = $d00a
|
|
&ubyte SP5Y = $d00b
|
|
&ubyte SP6X = $d00c
|
|
&ubyte SP6Y = $d00d
|
|
&ubyte SP7X = $d00e
|
|
&ubyte SP7Y = $d00f
|
|
&ubyte[16] SPXY = $d000 ; the 8 sprite X and Y registers as an array.
|
|
&uword[8] SPXYW = $d000 ; the 8 sprite X and Y registers as a combined xy word array.
|
|
|
|
&ubyte MSIGX = $d010
|
|
&ubyte SCROLY = $d011
|
|
&ubyte RASTER = $d012
|
|
&ubyte LPENX = $d013
|
|
&ubyte LPENY = $d014
|
|
&ubyte SPENA = $d015
|
|
&ubyte SCROLX = $d016
|
|
&ubyte YXPAND = $d017
|
|
&ubyte VMCSB = $d018
|
|
&ubyte VICIRQ = $d019
|
|
&ubyte IREQMASK = $d01a
|
|
&ubyte SPBGPR = $d01b
|
|
&ubyte SPMC = $d01c
|
|
&ubyte XXPAND = $d01d
|
|
&ubyte SPSPCL = $d01e
|
|
&ubyte SPBGCL = $d01f
|
|
|
|
&ubyte EXTCOL = $d020 ; border color
|
|
&ubyte BGCOL0 = $d021 ; screen color
|
|
&ubyte BGCOL1 = $d022
|
|
&ubyte BGCOL2 = $d023
|
|
&ubyte BGCOL4 = $d024
|
|
&ubyte SPMC0 = $d025
|
|
&ubyte SPMC1 = $d026
|
|
&ubyte SP0COL = $d027
|
|
&ubyte SP1COL = $d028
|
|
&ubyte SP2COL = $d029
|
|
&ubyte SP3COL = $d02a
|
|
&ubyte SP4COL = $d02b
|
|
&ubyte SP5COL = $d02c
|
|
&ubyte SP6COL = $d02d
|
|
&ubyte SP7COL = $d02e
|
|
&ubyte[8] SPCOL = $d027
|
|
|
|
|
|
; ---- end of VIC-II registers ----
|
|
|
|
; ---- CIA 6526 1 & 2 registers ----
|
|
|
|
&ubyte CIA1PRA = $DC00 ; CIA 1 DRA, keyboard column drive (and joystick control port #2)
|
|
&ubyte CIA1PRB = $DC01 ; CIA 1 DRB, keyboard row port (and joystick control port #1)
|
|
&ubyte CIA1DDRA = $DC02 ; CIA 1 DDRA, keyboard column
|
|
&ubyte CIA1DDRB = $DC03 ; CIA 1 DDRB, keyboard row
|
|
&ubyte CIA1TAL = $DC04 ; CIA 1 timer A low byte
|
|
&ubyte CIA1TAH = $DC05 ; CIA 1 timer A high byte
|
|
&ubyte CIA1TBL = $DC06 ; CIA 1 timer B low byte
|
|
&ubyte CIA1TBH = $DC07 ; CIA 1 timer B high byte
|
|
&ubyte CIA1TOD10 = $DC08 ; time of day, 1/10 sec.
|
|
&ubyte CIA1TODSEC = $DC09 ; time of day, seconds
|
|
&ubyte CIA1TODMMIN = $DC0A ; time of day, minutes
|
|
&ubyte CIA1TODHR = $DC0B ; time of day, hours
|
|
&ubyte CIA1SDR = $DC0C ; Serial Data Register
|
|
&ubyte CIA1ICR = $DC0D
|
|
&ubyte CIA1CRA = $DC0E
|
|
&ubyte CIA1CRB = $DC0F
|
|
|
|
&ubyte CIA2PRA = $DD00 ; CIA 2 DRA, serial port and video address
|
|
&ubyte CIA2PRB = $DD01 ; CIA 2 DRB, RS232 port / USERPORT
|
|
&ubyte CIA2DDRA = $DD02 ; CIA 2 DDRA, serial port and video address
|
|
&ubyte CIA2DDRB = $DD03 ; CIA 2 DDRB, RS232 port / USERPORT
|
|
&ubyte CIA2TAL = $DD04 ; CIA 2 timer A low byte
|
|
&ubyte CIA2TAH = $DD05 ; CIA 2 timer A high byte
|
|
&ubyte CIA2TBL = $DD06 ; CIA 2 timer B low byte
|
|
&ubyte CIA2TBH = $DD07 ; CIA 2 timer B high byte
|
|
&ubyte CIA2TOD10 = $DD08 ; time of day, 1/10 sec.
|
|
&ubyte CIA2TODSEC = $DD09 ; time of day, seconds
|
|
&ubyte CIA2TODMIN = $DD0A ; time of day, minutes
|
|
&ubyte CIA2TODHR = $DD0B ; time of day, hours
|
|
&ubyte CIA2SDR = $DD0C ; Serial Data Register
|
|
&ubyte CIA2ICR = $DD0D
|
|
&ubyte CIA2CRA = $DD0E
|
|
&ubyte CIA2CRB = $DD0F
|
|
|
|
; ---- end of CIA registers ----
|
|
|
|
; ---- SID 6581/8580 registers ----
|
|
|
|
&ubyte FREQLO1 = $D400 ; channel 1 freq lo
|
|
&ubyte FREQHI1 = $D401 ; channel 1 freq hi
|
|
&uword FREQ1 = $D400 ; channel 1 freq (word)
|
|
&ubyte PWLO1 = $D402 ; channel 1 pulse width lo (7-0)
|
|
&ubyte PWHI1 = $D403 ; channel 1 pulse width hi (11-8)
|
|
&uword PW1 = $D402 ; channel 1 pulse width (word)
|
|
&ubyte CR1 = $D404 ; channel 1 voice control register
|
|
&ubyte AD1 = $D405 ; channel 1 attack & decay
|
|
&ubyte SR1 = $D406 ; channel 1 sustain & release
|
|
&ubyte FREQLO2 = $D407 ; channel 2 freq lo
|
|
&ubyte FREQHI2 = $D408 ; channel 2 freq hi
|
|
&uword FREQ2 = $D407 ; channel 2 freq (word)
|
|
&ubyte PWLO2 = $D409 ; channel 2 pulse width lo (7-0)
|
|
&ubyte PWHI2 = $D40A ; channel 2 pulse width hi (11-8)
|
|
&uword PW2 = $D409 ; channel 2 pulse width (word)
|
|
&ubyte CR2 = $D40B ; channel 2 voice control register
|
|
&ubyte AD2 = $D40C ; channel 2 attack & decay
|
|
&ubyte SR2 = $D40D ; channel 2 sustain & release
|
|
&ubyte FREQLO3 = $D40E ; channel 3 freq lo
|
|
&ubyte FREQHI3 = $D40F ; channel 3 freq hi
|
|
&uword FREQ3 = $D40E ; channel 3 freq (word)
|
|
&ubyte PWLO3 = $D410 ; channel 3 pulse width lo (7-0)
|
|
&ubyte PWHI3 = $D411 ; channel 3 pulse width hi (11-8)
|
|
&uword PW3 = $D410 ; channel 3 pulse width (word)
|
|
&ubyte CR3 = $D412 ; channel 3 voice control register
|
|
&ubyte AD3 = $D413 ; channel 3 attack & decay
|
|
&ubyte SR3 = $D414 ; channel 3 sustain & release
|
|
&ubyte FCLO = $D415 ; filter cutoff lo (2-0)
|
|
&ubyte FCHI = $D416 ; filter cutoff hi (10-3)
|
|
&uword FC = $D415 ; filter cutoff (word)
|
|
&ubyte RESFILT = $D417 ; filter resonance and routing
|
|
&ubyte MVOL = $D418 ; filter mode and main volume control
|
|
&ubyte POTX = $D419 ; potentiometer X
|
|
&ubyte POTY = $D41A ; potentiometer Y
|
|
&ubyte OSC3 = $D41B ; channel 3 oscillator value read
|
|
&ubyte ENV3 = $D41C ; channel 3 envelope value read
|
|
|
|
; ---- end of SID registers ----
|
|
|
|
|
|
|
|
; ---- C64 basic routines ----
|
|
|
|
asmsub CLEARSCR () clobbers(A,X,Y) = $E544 ; clear the screen
|
|
asmsub HOMECRSR () clobbers(A,X,Y) = $E566 ; cursor to top left of screen
|
|
|
|
|
|
; ---- end of C64 basic routines ----
|
|
|
|
|
|
; ---- C64 kernal routines ----
|
|
|
|
asmsub STROUT (uword strptr @ AY) clobbers(A, X, Y) = $AB1E ; print null-terminated string (use c64scr.print instead)
|
|
asmsub IRQDFRT () clobbers(A,X,Y) = $EA31 ; default IRQ routine
|
|
asmsub IRQDFEND () clobbers(A,X,Y) = $EA81 ; default IRQ end/cleanup
|
|
asmsub CINT () clobbers(A,X,Y) = $FF81 ; (alias: SCINIT) initialize screen editor and video chip
|
|
asmsub IOINIT () clobbers(A, X) = $FF84 ; initialize I/O devices (CIA, SID, IRQ)
|
|
asmsub RAMTAS () clobbers(A,X,Y) = $FF87 ; initialize RAM, tape buffer, screen
|
|
asmsub RESTOR () clobbers(A,X,Y) = $FF8A ; restore default I/O vectors
|
|
asmsub VECTOR (ubyte dir @ Pc, uword userptr @ XY) clobbers(A,Y) = $FF8D ; read/set I/O vector table
|
|
asmsub SETMSG (ubyte value @ A) = $FF90 ; set Kernal message control flag
|
|
asmsub SECOND (ubyte address @ A) clobbers(A) = $FF93 ; (alias: LSTNSA) send secondary address after LISTEN
|
|
asmsub TKSA (ubyte address @ A) clobbers(A) = $FF96 ; (alias: TALKSA) send secondary address after TALK
|
|
asmsub MEMTOP (ubyte dir @ Pc, uword address @ XY) -> uword @ XY = $FF99 ; read/set top of memory pointer
|
|
asmsub MEMBOT (ubyte dir @ Pc, uword address @ XY) -> uword @ XY = $FF9C ; read/set bottom of memory pointer
|
|
asmsub SCNKEY () clobbers(A,X,Y) = $FF9F ; scan the keyboard
|
|
asmsub SETTMO (ubyte timeout @ A) = $FFA2 ; set time-out flag for IEEE bus
|
|
asmsub ACPTR () -> ubyte @ A = $FFA5 ; (alias: IECIN) input byte from serial bus
|
|
asmsub CIOUT (ubyte databyte @ A) = $FFA8 ; (alias: IECOUT) output byte to serial bus
|
|
asmsub UNTLK () clobbers(A) = $FFAB ; command serial bus device to UNTALK
|
|
asmsub UNLSN () clobbers(A) = $FFAE ; command serial bus device to UNLISTEN
|
|
asmsub LISTEN (ubyte device @ A) clobbers(A) = $FFB1 ; command serial bus device to LISTEN
|
|
asmsub TALK (ubyte device @ A) clobbers(A) = $FFB4 ; command serial bus device to TALK
|
|
asmsub READST () -> ubyte @ A = $FFB7 ; read I/O status word
|
|
asmsub SETLFS (ubyte logical @ A, ubyte device @ X, ubyte address @ Y) = $FFBA ; set logical file parameters
|
|
asmsub SETNAM (ubyte namelen @ A, str filename @ XY) = $FFBD ; set filename parameters
|
|
asmsub OPEN () clobbers(A,X,Y) = $FFC0 ; (via 794 ($31A)) open a logical file
|
|
asmsub CLOSE (ubyte logical @ A) clobbers(A,X,Y) = $FFC3 ; (via 796 ($31C)) close a logical file
|
|
asmsub CHKIN (ubyte logical @ X) clobbers(A,X) = $FFC6 ; (via 798 ($31E)) define an input channel
|
|
asmsub CHKOUT (ubyte logical @ X) clobbers(A,X) = $FFC9 ; (via 800 ($320)) define an output channel
|
|
asmsub CLRCHN () clobbers(A,X) = $FFCC ; (via 802 ($322)) restore default devices
|
|
asmsub CHRIN () clobbers(Y) -> ubyte @ A = $FFCF ; (via 804 ($324)) input a character (for keyboard, read a whole line from the screen) A=byte read.
|
|
asmsub CHROUT (ubyte char @ A) = $FFD2 ; (via 806 ($326)) output a character
|
|
asmsub LOAD (ubyte verify @ A, uword address @ XY) -> ubyte @Pc, ubyte @ A, ubyte @ X, ubyte @ Y = $FFD5 ; (via 816 ($330)) load from device
|
|
asmsub SAVE (ubyte zp_startaddr @ A, uword endaddr @ XY) -> ubyte @ Pc, ubyte @ A = $FFD8 ; (via 818 ($332)) save to a device
|
|
asmsub SETTIM (ubyte low @ A, ubyte middle @ X, ubyte high @ Y) = $FFDB ; set the software clock
|
|
asmsub RDTIM () -> ubyte @ A, ubyte @ X, ubyte @ Y = $FFDE ; read the software clock
|
|
asmsub STOP () clobbers(A,X) -> ubyte @ Pz, ubyte @ Pc = $FFE1 ; (via 808 ($328)) check the STOP key
|
|
asmsub GETIN () clobbers(X,Y) -> ubyte @ A = $FFE4 ; (via 810 ($32A)) get a character
|
|
asmsub CLALL () clobbers(A,X) = $FFE7 ; (via 812 ($32C)) close all files
|
|
asmsub UDTIM () clobbers(A,X) = $FFEA ; update the software clock
|
|
asmsub SCREEN () -> ubyte @ X, ubyte @ Y = $FFED ; read number of screen rows and columns
|
|
asmsub PLOT (ubyte dir @ Pc, ubyte col @ Y, ubyte row @ X) -> ubyte @ X, ubyte @ Y = $FFF0 ; read/set position of cursor on screen. Use c64scr.plot for a 'safe' wrapper that preserves X.
|
|
asmsub IOBASE () -> uword @ XY = $FFF3 ; read base address of I/O devices
|
|
|
|
; ---- end of C64 kernal routines ----
|
|
|
|
}
|