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Added prtstr() to apple, oric header files
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Curtis F Kaylor
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@ -1,28 +1,30 @@
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;Apple 1 program initialization code for c02 programs
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SUBROUTINE _APPLE1
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;System Specific ASCII Key Mappings
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DELKEY EQU $5F ;Delete/Backspace Key (Left Arrow/Underscore)
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ESCKEY EQU $1B ;Escape/Stop Key (Escape)
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RTNKEY EQU $0D ;Return/Enter Key (Carriage Return)
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;Locations used by Monitor
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XAML EQU $24 ;Examine Index
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XAMH EQU $25 ;
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STL EQU $26 ;Store Index
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STH EQU $27 ;
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HEXL EQU $28 ;Hex Data
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HEXH EQU $29 ;
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YSAVE EQU $2A ;Y Register Storage
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MODE EQU $2B ;Mode: Store, Examine, Block Examine
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BUFFER EQU $200 ;Input Buffer
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.XAML EQU $24 ;Examine Index
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.XAMH EQU $25 ;
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.STL EQU $26 ;Store Index
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.STH EQU $27 ;
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.HEXL EQU $28 ;Hex Data
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.HEXH EQU $29 ;
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.YSAVE EQU $2A ;Y Register Storage
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.MODE EQU $2B ;Mode: Store, Examine, Block Examine
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.BUFFER EQU $200 ;Input Buffer
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;Standard Library Variables
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SRCLO EQU $30 ;Source String Pointer (stdio.a02)
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SRCHI EQU $31
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DSTLO EQU $32 ;Destination String Pointer (string.a02)
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DSTHI EQU $33
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DSTLO EQU $34 ;Destination String Pointer (string.a02)
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DSTHI EQU $35
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BFRLO EQU $34 ;Work Buffer Pointer
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BFRHI EQU $35
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BLKLO EQU $36 ;Block Segment Pointer (block.a02)
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BLKHI EQU $37
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STKLO EQU $38 ;System Pointer (pointer.a02)
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@ -47,13 +49,13 @@ STKELO EQU $4E ;Stack End Address
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STKEHI EQU $4F
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;PIA 6820 Registers
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KBD EQU $D010 ;Keyboard Data
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KBDCR EQU $D011 ;Keyboard Control Register
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DSP EQU $D012 ;Display Data
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DSPCR EQU $D013 ;Display Control Register
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.KBD EQU $D010 ;Keyboard Data
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.KBDCR EQU $D011 ;Keyboard Control Register
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.DSP EQU $D012 ;Display Data
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.DSPCR EQU $D013 ;Display Control Register
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EXIT EQU $FF00 ;Monitor Entry Point
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ECHO EQU $FFEF ;Subroutine - Print Character in Accumulator
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.ECHO EQU $FFEF ;Subroutine - Print Character in Accumulator
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PRBYTE EQU $FFDC ;Subroutine - Print Accumulator as Hexadadecimal number
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PRHEX EQU $FFE5 ;Subroutine - Print Low Nybble of Accumulator as Hex Digit
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@ -67,26 +69,27 @@ START: LDX #$FF ;Reset stack - the monitor doesn't do this
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;Subroutine Poll Keyboard
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PLKEY: INC RDSEED ;Cycle Keypress Counter
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BIT KBDCR ;Check the Keyboard Control Register
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BMI RDKEYA ;If Key Pressed, Read Key
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LDA #0 ;Otherwise Return ASCII NUL
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RTS
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LDA #0 ;Set Return Value to 0
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BIT .KBDCR ;Check the Keyboard Control Register
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BPL .PLKEYX ;If No Key Pressed, Return 0
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LDA .KBD ;Else Read Key and Return
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.PLKEYX RTS
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GETCHR: INC RDSEED ;Cycle Keypress Counter
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RDKEYC: BIT KBDCR ;Check the Keyboard Control Register
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BPL RDKEYC ; and loop if key not pressed
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RDKEYA: LDA KBD ; Read key into Accumulator
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RTS
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GETKEY: JSR PLKEY ;Read Keyboard
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AND #$7F ;Strip High Bit
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RTS
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GETKEY: JSR GETCHR ;Subroutine - Read ASCII from Keyboard
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GETKEA: AND #$7F ;Strip High Bit
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BIT GETKEM ;If Character is in
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BEQ GETKEX ; Alpha Block ($40-$74)
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BIT .GETKEM ;If Character is in
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BEQ .GETKEX ; Alpha Block ($40-$74)
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AND #$5F ; Strip Bit 5
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GETKEX: RTS
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GETKEM: DC $40 ;Character Block Bit Mask
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.GETKEX RTS
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.GETKEM DC $40 ;Character Block Bit Mask
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PUTCHR EQU ECHO ;Alias to Monitor Routine
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GETCHR: JSR GETKEY ;Get Keypress
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BEQ GETCHR ;Loop if No Key Pressed
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RTS
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PUTCHR EQU .ECHO ;Alias to Monitor Routine
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;Delete Previous Character
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DELCHR: LDA #DELKEY ;Load Underscore Character
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@ -95,3 +98,5 @@ DELCHR: LDA #DELKEY ;Load Underscore Character
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;Advance Character to Next line
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NEWLIN: LDA #$0D ;Load C/R into Accumulator
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JMP PUTCHR ; and Print it
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INCLUDE "../include/putstr.a02" ;PUTSTR routine
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@ -1,13 +1,5 @@
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/* Apple 1 Header File */
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/* Monitor Variables */
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char xaml, xamh; //Examine Index
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char stl, sth; //Store Index
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char hexl,hexh; //Hex Data
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char ysave; //Y Register Storage
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char mode; //Mode: Store, Examine, Block Examine
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char buffer[]; //Input Buffer
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//Platform Specific Constants
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#define DELKEY $5F //Delete/Backspace Key
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#define ESCKEY $1B //Escape/Stop Key
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@ -28,12 +20,6 @@ char stkelo, stkehi; //Stack End Address
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char temp0, temp1, temp2, temp3; //Temporary Variables
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//PIA 6820 Registers
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char kbd; //Keyboard Data
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char kbdcr; //Keyboard Control Register
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char dsp; //Display Data
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char dspcr; //Display Control Register
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//Monitor Subroutines
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void echo(); //Print Character in Accumulator
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void prbyte(); //Print Accumulator as Hexadadecimal number
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@ -1,5 +1,7 @@
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;Apple 1 program initialization code for c02 programs
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SUBROUTINE _APPLE2
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;System Specific ASCII Key Mappings
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DELKEY EQU $08 ;Delete/Backspace Key (Left Arrow)
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ESCKEY EQU $1B ;Escape/Stop Key (Escape)
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@ -30,8 +32,8 @@ TEMP2 EQU $FE
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TEMP3 EQU $FF
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;I/O Locations
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KBD EQU $C000 ;Keyboard Data
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AKD EQU $C010 ;Keyboard Strobe Register
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.KBD EQU $C000 ;Keyboard Data
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.AKD EQU $C010 ;Keyboard Strobe Register
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;Monitor Routines
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PRBYTE EQU $FDDA ;Print Accumulator as Hexadecimal Number
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@ -46,10 +48,10 @@ START: JSR NEWLIN ;Start On New Line
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;Poll Keyboard for Raw Character
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POLKEY: INC RDSEED ;Cycle Random Seed
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LDA #0 ;Clear Accumulator
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BIT KBD ;Check Keyboard Strobe Bit
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BIT .KBD ;Check Keyboard Strobe Bit
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BPL POLKER ;If Key Pressed
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LDA KBD ; Load Key Value
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STA AKD ; Clear Strobe
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LDA .KBD ; Load Key Value
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STA .AKD ; Clear Strobe
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POLKER: RTS
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;Get ASCII Character from Keyboard
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@ -74,7 +76,9 @@ PUTCHR: ORA #$80 ;Set High Bit
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CMP #$E0 ;
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BCC PRCHRX ;If Lower Case
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AND #$1F ; Convert to Inverse
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PRCHRX: JMP $FDF0 ;Call Monitor Routine COUT1
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PRCHRX: JMP $FDF0 ;Execute Monitor Routine COUT1
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;Advance Character to Next line
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NEWLIN EQU $FD8E ;Monitor Routine CROUT
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INCLUDE "../include/putstr.a02" ;PUTSTR routine
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@ -42,6 +42,7 @@ char getsiz(); //Get Screen Size
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void newlin(); //Advance cursor to beginning of next line
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char polkey(); //Poll Console for character
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char putchr(); //Print ASCII character to Console
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char putstr(); //Print ASCII string to Console
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void setpos(); //Set Cursor Position
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//System Labels
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@ -96,6 +96,10 @@ NEWLIN EQU $CB9F ;Basic NEWLINE Routine ($CBF0 for ATMOS)
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PUTCHR: TAX ;Transfer Character to X Register
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JMP $F409 ;Execute VDU Routine
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;Print String to Screen
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PUTSTR: TXA ;Copy LSB to A6
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JMP $CCB0 ;Execute BASIC String Print Routine
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;Get End of Free Memory
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RAMTOP: LDX $A6 ;Load HIMEM LSB
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LDY $A7 ;Load HIMEM MSB
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@ -23,6 +23,7 @@ char getchr(); //Wait for character from Console
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char getkey(); //Read ASCII character from Console
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void newlin(); //Advance cursor to beginning of next line
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char putchr(); //Print ASCII character to Console
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char putstr(); //Print ASCII string to Console
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void prbyte(); //Print Accumulator as Hexadadecimal number
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void prhex(); //Print Low Nybble of Accumulator as Hex Digit
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