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cc65/asminc/sym1.inc
2021-05-09 17:13:24 -05:00

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 ;