mirror of
https://github.com/RevCurtisP/C02.git
synced 2024-11-22 01:31:33 +00:00
Added run6502 header files
This commit is contained in:
parent
a750604538
commit
fd7e1a708b
84
include/run6502.a02
Normal file
84
include/run6502.a02
Normal file
@ -0,0 +1,84 @@
|
|||||||
|
;run6502 program initialization code for c02 programs
|
||||||
|
|
||||||
|
;System Specific ASCII Key Mappings
|
||||||
|
DELKEY EQU $08 ;Delete/Backspace Key (Backspace)
|
||||||
|
ESCKEY EQU $18 ;Escape/Stop Key (Control-X)
|
||||||
|
RTNKEY EQU $0A ;Return/Enter Key (Line Feed)
|
||||||
|
|
||||||
|
;Zero Page Locations
|
||||||
|
SRCPTR EQU $30 ;Source String Pointer (stdio.a02)
|
||||||
|
SRCLO EQU $30
|
||||||
|
SRCHI EQU $31
|
||||||
|
DSTPTR EQU $32 ;Destination String Pointer (string.a02)
|
||||||
|
DSTLO EQU $32
|
||||||
|
DSTHI EQU $33
|
||||||
|
BFRPTR EQU $34 ;Work Buffer Pointer
|
||||||
|
BFRLO EQU $34
|
||||||
|
BFRHI EQU $35
|
||||||
|
BLKPTR EQU $36 ;Block Segment Pointer (block.a02)
|
||||||
|
BLKLO EQU $36
|
||||||
|
BLKHI EQU $37
|
||||||
|
STKLO EQU $38 ;Stack Pointer (stack.a02)
|
||||||
|
STKHI EQU $39
|
||||||
|
|
||||||
|
RDSEED EQU $3E ;Pseudo-RANDOM Seed
|
||||||
|
RANDOM EQU $3F ;Pseudo-RANDOM Number Storage
|
||||||
|
|
||||||
|
TEMP0 EQU $40 ;Temporary Storage
|
||||||
|
TEMP1 EQU $41
|
||||||
|
TEMP2 EQU $42
|
||||||
|
TEMP3 EQU $43
|
||||||
|
|
||||||
|
BLKSLO EQU $46 ;Block Start Address
|
||||||
|
BLKSHI EQU $47
|
||||||
|
BLKELO EQU $48 ;Block End Address
|
||||||
|
BLKEHI EQU $49
|
||||||
|
BLKLEN EQU $4A ;Block Segment Length
|
||||||
|
|
||||||
|
STKSLO EQU $4C ;Stack Start Address
|
||||||
|
STKSHI EQU $4D
|
||||||
|
STKELO EQU $4E ;Stack End Address
|
||||||
|
STKEHI EQU $4F
|
||||||
|
|
||||||
|
;Memory Mapped I/O
|
||||||
|
_KBHIT EQU $FFF0 ;Is a Key Pressed
|
||||||
|
_GETCH EQU $FFF1 ;Read Keyboard (Blocking)
|
||||||
|
|
||||||
|
ORG $8000 ;START at RAM midpoint
|
||||||
|
|
||||||
|
START: JMP MAIN ;Execute Program
|
||||||
|
|
||||||
|
;Read Character from Console
|
||||||
|
GETKEY EQU $FFF4 ;Emulator CHRIN Routine
|
||||||
|
|
||||||
|
;Poll Character from Keyboard
|
||||||
|
POLKEY: BRK ;Exit Emulator
|
||||||
|
|
||||||
|
|
||||||
|
;Wait for Character from Console
|
||||||
|
GETCHR: JSR GETKEY ;Read Character from STDIN
|
||||||
|
CMP #$FF ;If EOF
|
||||||
|
BNE GETCHX
|
||||||
|
LDA #ESCKEY ; Set to Escape Character
|
||||||
|
GETCHX: ORA 0 ;Set Zero Flag
|
||||||
|
RTS
|
||||||
|
|
||||||
|
;Delete Previous Character
|
||||||
|
DELCHR: LDA #$08 ;Load Backspace into Accumulator
|
||||||
|
JSR PUTCHR ; and Print it
|
||||||
|
LDA #$20 ;Load Space into Accumulater
|
||||||
|
JSR PUTCHR ; and Print it
|
||||||
|
LDA #$08 ;Load Backspace into Accumulator
|
||||||
|
JMP PUTCHR ; and Print it
|
||||||
|
|
||||||
|
;Advance Character to Next line
|
||||||
|
NEWLIN: LDA #RTNKEY ;Load Line Feed into Accumulater
|
||||||
|
JMP PUTCHR ; and Print it
|
||||||
|
|
||||||
|
;Print Character to Console
|
||||||
|
PUTCHR EQU $FFF6 ;Emulator CHROUT Routine
|
||||||
|
|
||||||
|
EXIT EQU $FFF8 ;Emulator SHUTDN Routine
|
||||||
|
|
||||||
|
INCLUDE "../include/prbyte.a02" ;PRBYTE and PRHEX routines
|
||||||
|
INCLUDE "../include/putstr.a02" ;PUTSTR routine
|
41
include/run6502.h02
Normal file
41
include/run6502.h02
Normal file
@ -0,0 +1,41 @@
|
|||||||
|
/* run6502 Header File */
|
||||||
|
|
||||||
|
//Platform Specific Constants
|
||||||
|
#define DELKEY $08 //Delete/Backspace Key
|
||||||
|
#define ESCKEY $18 //Escape/Stop Key
|
||||||
|
#define RTNKEY $0D //Return/Enter Key
|
||||||
|
|
||||||
|
//Library Pointer Variables
|
||||||
|
zeropage int srcptr, dstptr, bfrptr, blkptr;
|
||||||
|
char srclo,srchi; //Source String Pointer for Library Functions
|
||||||
|
char dstlo,dsthi; //Destination String Pointer for Library Functions
|
||||||
|
char bfrlo,bfrhi; //Buffer Pointer for Library Functions
|
||||||
|
char blklo,blkhi; //Block Segment Pointer
|
||||||
|
char stklo,stkhi; //Stack Pointer
|
||||||
|
|
||||||
|
//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
|
||||||
|
|
||||||
|
//Memory Mapped I/O
|
||||||
|
char putcon; //Write Character to Console
|
||||||
|
char getcon; //Read Character from Console
|
||||||
|
|
||||||
|
//System Subroutines
|
||||||
|
char polkey(); //Poll Console for character (Exits Emulator)
|
||||||
|
char getchr(); //Wait for character from Console
|
||||||
|
char getkey(); //Read ASCII character from Console (Exits Emulator)
|
||||||
|
void newlin(); //Advance cursor to beginning of next line
|
||||||
|
void delchr(); //Delete previous character
|
||||||
|
char putchr(); //Print ASCII character to Console
|
||||||
|
void prbyte(); //Print Accumulator as Hexadadecimal number
|
||||||
|
void prhex(); //Print Low Nybble of Accumulator as Hex Digit
|
||||||
|
|
||||||
|
//System Labels
|
||||||
|
start: //Start of Code
|
||||||
|
exit: //Return to Operating System
|
Loading…
Reference in New Issue
Block a user