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Added Commander X16 Header Files

This commit is contained in:
Curtis F Kaylor 2019-11-15 00:07:23 -05:00
parent 8d12f452a0
commit 51bf4514d6
3 changed files with 154 additions and 0 deletions

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; c02 Program Initialization Code for Commander X16
;PETSCII Key Mappings
DELKEY EQU $14 ;Delete/Backspace Key (Delete)
ESCKEY EQU $03 ;Escape/Stop Key (RUN/STOP)
RTNKEY EQU $0D ;Return/Enter Key (RETURN)
;Zero Page System Variables - Assumes Usage is Same as C64
XMBANK EQU $0A ;Extended Memory Bank (Load/Verify Flag)
XADRLO EQU $0B ;Ext Memory Address LSB (Text Index/Array Size)
XADRHI EQU $0C ;Ext Memory Address MSB (Array Dimension Fkags)
SRCPTR EQU $22 ;Source Pointer [Temporary Pointers]
SRCLO EQU $22 ;Source Pointer LSB [Temporary Pointers]
SRCHI EQU $23 ;Source Pointer MSB [Temporary Pointers]
DSTPTR EQU $24 ;Destination Pointer [Temporary Pointers]
DSTLO EQU $24 ;Destination Pointer LSB [Temporary Pointers]
DSTHI EQU $25 ;Destination Pointer MSB [Temporary Pointers]
BLKLO EQU $26 ;Block Pointer LSB [Floating Point Work Area]
BLKHI EQU $27 ;Block Pointer MSB [Floating Point Work Area]
STKLO EQU $28 ;Stack Pointer LSB [Floating Point Work Area]
STKHI EQU $29 ;Stack Pointer MSB [Floating Point Work Area]
BFRLO EQU $35 ;Buffer Pointer LSB [Temporary String Pointer]
BFRHI EQU $36 ;Buffer Pointer MSB [Temporary String Pointer]
RDSEED EQU $A2 ;Random Seed [Software Jiffy Clock (Low Byte)]
TEMP0 EQU $FB ;Temporary Variable [Unused Byte]
TEMP1 EQU $FC ;Temporary Variable [Unused Byte]
TEMP2 EQU $FD ;Temporary Variable [Unused Byte]
TEMP3 EQU $FE ;Temporary Variable [Unused Byte]
;Other Variables - Top of Extended System RAM Area
BLKSLO EQU $07F4 ;Block Start LSB [Unused Byte]
BLKSHI EQU $07F5 ;Block Start MSB [Unused Byte]
BLKELO EQU $07F6 ;Block End LSB [Unused Byte]
BLKEHI EQU $07F7 ;Block End MSB [Unused Byte]
BLKLEN EQU $07F8 ;Block Length [Unused Byte]
RANDOM EQU $07F9 ;Random Number Storage [Unused Byte]
STKSAV EQU $07FA ;Machine Stack Storage [Unused Byte]
STKSLO EQU $07FC ;Stack Start LSB [Unused Byte]
STKSHI EQU $07FD ;Stack Start MSB [Unused Byte]
STKELO EQU $07FE ;Stack End LSB [Unused Byte]
STKEHI EQU $07FF ;Stack End MSB [Unused Byte]
;Machine Language Basic Stub - Same as Commodore 64
ORG $0801 ;Start of Basic Program
BASIC: DC $0C, $08 ;Pointer to Next Line
DC $00, $00 ;Line Number (0)
DC $9E ;SYS
DC $20 ;' '
DC $32, $30, $36 ,$32 ;"2062"
DC $00 ;End of Line Marker
DC $00, $00 ;End of Basic Program
START: TSX ;Get Stack Pointer
STX STKSAV ;and Save for Exit
JMP MAIN ;Execute Program
EXIT: LDX STKSAV ;Retrieve Saved Stack Pointer
TXS ;and Restore It
RTS ;Return to BASIC
;Poll Keyboard for Character
POLKEY EQU $FFE4 ;Aliased to Kernal GETIN Routine
;Get Character from Keyboard
GETKEY EQU POLKEY ;Aliased to POLKEY Routine
;Wait for Character from Keyboard
GETCHR: JSR GETKEY ;Poll Keyboard
BEQ GETCHR ;If No Key, Loop
RTS
;Print Character to Console
PUTCHR EQU $FFD2 ;Aliased to CHROUT Routine
;Delete Previous Character
DELCHR: LDA #DELKEY ;Load Delete Character
JMP PUTCHR ;Print and Return
;Advance Character to Next line
NEWLIN: LDA #RTNKEY ;Load Return Character
JMP PUTCHR ;Print and Return
PUTSTR: TXA ;Copy LSB to Accumulator
JMP $CBD2 ;Execute STROUT
INCLUDE "../include/prbyte.a02" ;PRBYTE and PRHEX routine

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/* C02 System Header file for Commander X16 */
/* Platform Specific Constants */
#define DELKEY $14 //Delete/Backspace Key (DEL)
#define ESCKEY $03 //Escape/Break Key (STOP)
#define RTNKEY $0D //Return/Enter Key (RETURN)
/* Standard Library Pointers */
zeropage char srclo,srchi; //Source Pointer for Library Functions
zeropage char dstlo,dsthi; //String Pointer for Library Functions
zeropage int srcptr,dstptr; //Source, Destination Pointers
zeropage char bfrlo,bfrhi; //Buffer Pointer for Library Functions
zeropage char blklo,blkhi; //Block Segment Pointer
zeropage char stklo,stkhi; //Stack Pointer
zeropage char xadrlo,xadrhi; //Physical Address LSB, MSB
/* Standard Library Variables */
char blkslo,blkshi; //Block Start Address
char blkelo,blkehi; //Block End Address
char blklen; //Block Segment Length
char stkslo,stkshi; //Stack Start Address
char stkelo,stkehi; //Stsck End Address
char random,rdseed; //Pseudo-Random Number Generation
char temp0,temp1,temp2,temp3; //Temporary Storage
char xmbank; //Physical Bank
/* System Subroutines */
void delchr(); //Delete previous character
char getkey(); //Read ASCII character from Keyboard
char getpos(); //Get Cursor Position
char getsiz(); //Get Screen Size
void newlin(); //Advance cursor to beginning of next line
char polkey(); //Poll Keyboard for character
char putchr(); //Print ASCII character to Keyboard
void prbyte(); //Print Accumulator as Hexadadecimal number
void prhex(); //Print Low Nybble of Accumulator as Hex Digit
char getchr(); //Wait for character from Keyboard
void setpos(); //Set Cursor Position
//System Labels
start: //Start of Code
exit: //Return to Operating System

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@REM Compile and Run C02 Program for Commander X16 Emulator
@ECHO OFF
IF EXIST %1.c02 GOTO COMPILE
ECHO File %1.c02 not found
GOTO EOF
:COMPILE
ECHO Compiling File %1.c02 for Commander X16
..\c02.exe -c 65C02 -h x16 -s x16 -s cbm %1 >%1.dbg
IF %ERRORLEVEL% NEQ 0 GOTO EOF
ECHO Assembling File %1.asm
..\a02.exe -p %1.asm %1.prg %1.lst >%1.out
REM C:\Programs\dasm %1.asm -f1 -o%1.prg -l%1.lst -s%1.sym
IF %ERRORLEVEL% NEQ 0 GOTO EOF
ECHO Starting Emulator in Debug Mode
REM SET X16DIR=C:\Programs\x16emu
REM SET X16EXE=%X16DIR%\x16emu.exe
REM SET X16ROM=%X16DIR%\rom.bin
REM SET X16CHR=%X16DIR%\chargen.bin
REM %X16EXE% -rom %X16ROM% -char %X16CHR% -prg %1.prg -run -debug
C:\Programs\x16emu\x16emu -prg %1.prg -run -debug -echo raw >%1.out
:EOF