mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 04:30:10 +00:00
187 lines
6.7 KiB
PHP
187 lines
6.7 KiB
PHP
|
; ---------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; SYM-1 definitions
|
||
|
|
;
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
|
||
|
|
|
||
|
|
RAMSTART := $0200 ; Entry point
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; Monitor Functions
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
WARM := $8003 ; Monitor entry
|
||
|
|
SVNMI := $809B ; Save NMI entry
|
||
|
|
INBYTE := $81D9 ; Get two HEX characters and pack
|
||
|
|
ASCNIB := $8275 ; Test for carriage-return
|
||
|
|
INCCMP := $82B2 ; Increment pointer
|
||
|
|
CHKSAD := $82DD ; Compute checksum
|
||
|
|
OUTPC := $82EE ; Display program counter
|
||
|
|
OUTBYT := $82FA ; Print byte as two ASCII characters
|
||
|
|
OUTS2 := $8319 ; Print pointer
|
||
|
|
INSTAT := $8386 ; Determine if key is pressed
|
||
|
|
GETKEY := $88AF ; Get key (disregarding monitor login)
|
||
|
|
SCAND := $8906 ; Flash LED display (once)
|
||
|
|
KEYQ := $8923 ; Test for keypress
|
||
|
|
BEEP := $8972 ; Make a beep
|
||
|
|
CONFIG := $89A5 ; Configure I/O
|
||
|
|
OUTDSP := $89C1 ; Output to on-board LED display
|
||
|
|
INCHR := $8A1B ; Input character and convert to uppercase
|
||
|
|
OUTCHR := $8A47 ; Output character
|
||
|
|
INTCHR := $8A58 ; Input character without case conversion
|
||
|
|
DLYF := $8AE6 ; Delay 1 bit time
|
||
|
|
DLYH := $8AE9 ; Delay 1/2 bit time
|
||
|
|
RESET := $8B4A ; Hard reset
|
||
|
|
ACCESS := $8B86 ; Unlock lowest 4K memory
|
||
|
|
NACCES := $8B9C ; Lock lowest 4K memory
|
||
|
|
L8C78 := $8C78 ; Link to tape
|
||
|
|
DUMPT := $8E87 ; Dump memory to tape
|
||
|
|
LOADT := $8C78 ; Load memory from tape
|
||
|
|
TAPEMODE := $00FD ; Top bit on for high-speed
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; System Memory
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
DISBUF := $A640 ; On-Board Display Buffer
|
||
|
|
DISBUF0 := $A640 ; Left-Most digit
|
||
|
|
DISBUF1 := $A641 ; Second digit
|
||
|
|
DISBUF2 := $A642 ; Third
|
||
|
|
DISBUF3 := $A643 ; Fourth
|
||
|
|
DISBUF4 := $A644 ; Fifth
|
||
|
|
DISBUF5 := $A645 ; Sixth and right-most digit
|
||
|
|
DISBUF6 := $A646 ; Not-used / right of display (shift buffer)
|
||
|
|
RDIG := $A645 ; Right-most digit (same as DISBUF5)
|
||
|
|
P3L := $A64A ; Parameter 3 (low-byte)
|
||
|
|
P3H := $A64B ; (high-byte)
|
||
|
|
P2L := $A64C ; Parameter 2
|
||
|
|
P2H := $A64D ;
|
||
|
|
P1L := $A64E ; Parameter 1
|
||
|
|
P1H := $A64F
|
||
|
|
PARNR := $A649 ; Number of Parameters Entered
|
||
|
|
PADBIT := $A650 ; Pad Bits for Carriage Return
|
||
|
|
SDBYT := $A651 ; Baud Rate for RS232 (01-4800,06-2400,10-1200,24-600,4C-300,D5-110)
|
||
|
|
ERCNT := $A652 ; Error Count (Max FF)
|
||
|
|
TECHO := $A653 ; Terminal Echo (bit-7=ECHO/NO, 6=CTL-O TOGGLE)
|
||
|
|
TOUTFL := $A654 ; Output Flags (bit-7=CRT IN, 6=TTY IN, 5=TTY OUT, 4=CRT OUT)
|
||
|
|
KSHFL := $A655 ; Keyboard Shift Flag
|
||
|
|
TV := $A656 ; Trace Velocity (0=Single Step)
|
||
|
|
LSTCOM := $A657 ; Last Monitor Command
|
||
|
|
MAXRC := $A658 ; Maximum Record Length for Memory Dump
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; Register Followers
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
PCLR := $A659 ; Program Counter (low-byte)
|
||
|
|
PCHR := $A65A ; (high-byte)
|
||
|
|
SR := $A65B ; Stack Pointer
|
||
|
|
FR := $A65C ; Status Register Flags
|
||
|
|
AR := $A65D ; A Register
|
||
|
|
XR := $A65E ; X Register
|
||
|
|
YR := $A65F ; Y Register
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; I/O Vectors (3 bytes each)
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
INVEC := $A660 ; Input Character
|
||
|
|
OUTVEC := $A663 ; Output Character
|
||
|
|
INSVEC := $A666 ; Input Status
|
||
|
|
URSVEC := $A669 ; Unrecognized Syntax
|
||
|
|
URCVEC := $A66C ; Unrecognized Command / Error
|
||
|
|
SCNVEC := $A66F ; Scan On-board Display
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; Trace and Interrupt Vectors (2 bytes each)
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
EXEVEC := $A672 ; Exec and Alternate InVec
|
||
|
|
TRCVEC := $A674 ; Trace
|
||
|
|
UBRKVC := $A676 ; User Break after Monitor
|
||
|
|
UIRQVC := $A678 ; User non-break IRQ after Monitor
|
||
|
|
NMIVEC := $A67A ; Non-Maskable Interrupt
|
||
|
|
RSTVEC := $A67C ; Reset
|
||
|
|
IRQVEC := $A67E ; Interrupt Request
|
||
|
|
|
||
|
|
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
; I/O Registers
|
||
|
|
; ---------------------------------------------------------------------------
|
||
|
|
;
|
||
|
|
; 6532 (U27)
|
||
|
|
;
|
||
|
|
PADA := $A400 ; Keyboard / Display
|
||
|
|
P3DA := $A402 ; Serial I/O
|
||
|
|
DDPADA := $A401 ; Data-Direction Register for PADA
|
||
|
|
DDP3DA := $A403 ; Data-Direction Register for P3DA
|
||
|
|
WEDRTA := $A404 ; Write-Edge Detect Read Timer A
|
||
|
|
WEDRFA := $A405 ; Write-Edge Detect Read-Int Flags A
|
||
|
|
WEDRTB := $A406 ; Write-Edge Detect Read Timer B
|
||
|
|
WEDRFB := $A407 ; Write-Edge Detect Read-Int Flags B
|
||
|
|
TIM0001 := $A41C ; Timer / 1
|
||
|
|
TIM0008 := $A41D ; Timer / 8
|
||
|
|
TIM0064 := $A41E ; Timer / 64
|
||
|
|
TIM1024 := $A41F ; Timer / 1024
|
||
|
|
;
|
||
|
|
; 6522 (U25)
|
||
|
|
;
|
||
|
|
OR1A := $A001 ; Input / Output Register for 1A
|
||
|
|
DDR1A := $A003 ; Data-Direction Register for 1A
|
||
|
|
OR1B := $A000 ; Input / Output Register for 1B
|
||
|
|
DDR1B := $A002 ; Data-Direction Register for 1B
|
||
|
|
TIC1L := $A004 ;
|
||
|
|
TIC1H := $A005 ;
|
||
|
|
TIL1L := $A006 ;
|
||
|
|
TIL1H := $A007 ;
|
||
|
|
T2L1L := $A008 ;
|
||
|
|
T2C1L := $A008 ;
|
||
|
|
T2C1H := $A009 ;
|
||
|
|
SR1 := $A00A ;
|
||
|
|
ACR1 := $A00B ;
|
||
|
|
PCR1 := $A00C ;
|
||
|
|
IFR1 := $A00D ;
|
||
|
|
IER1 := $A00E ;
|
||
|
|
DR1A := $A00F ;
|
||
|
|
;
|
||
|
|
; 6522 (U28)
|
||
|
|
;
|
||
|
|
OR2A := $A801 ; Input / Output Register for 2A
|
||
|
|
DDR2A := $A803 ; Data-Direction Register for 2A
|
||
|
|
OR2B := $A800 ; Input / Output Register for 2B
|
||
|
|
DDR2B := $A802 ; Data-Direction Register for 2B
|
||
|
|
TIC2L := $A804 ;
|
||
|
|
TIC2H := $A805 ;
|
||
|
|
TIL2L := $A806 ;
|
||
|
|
TIL2H := $A807 ;
|
||
|
|
T2L2L := $A808 ;
|
||
|
|
T2C2L := $A808 ;
|
||
|
|
T2C2H := $A809 ;
|
||
|
|
SR2 := $A80A ;
|
||
|
|
ACR2 := $A80B ;
|
||
|
|
PCR2 := $A80C ;
|
||
|
|
IFR2 := $A80D ;
|
||
|
|
IER2 := $A80E ;
|
||
|
|
DR2A := $A80F ;
|
||
|
|
;
|
||
|
|
; 6522 (U29)
|
||
|
|
;
|
||
|
|
OR3A := $AC01 ; Write-Protect RAM, Debug On/Off, I/O-3A
|
||
|
|
DDR3A := $AC03 ; Data-Direction Register for 3A
|
||
|
|
OR3B := $AC00 ; Input / Output Register for 3B
|
||
|
|
DDR3B := $AC02 ; Data-Direction Register for 3B
|
||
|
|
TIC3L := $AC04 ;
|
||
|
|
TIC3H := $AC05 ;
|
||
|
|
TIL3L := $AC06 ;
|
||
|
|
TIL3H := $AC07 ;
|
||
|
|
T2L3L := $AC08 ;
|
||
|
|
T2C3L := $AC08 ;
|
||
|
|
T2C3H := $AC09 ;
|
||
|
|
SR3 := $AC0A ;
|
||
|
|
ACR3 := $AC0B ;
|
||
|
|
PCR3 := $AC0C ;
|
||
|
|
IFR3 := $AC0D ;
|
||
|
|
IER3 := $AC0E ;
|
||
|
|
DR3A := $AC0F ;
|