1
0
mirror of https://github.com/cc65/cc65.git synced 2024-12-24 11:31:31 +00:00
cc65/asminc/kim1.inc
Jeff Tranter 3a5fbd34da Add KIM-1 functions to write to the 7-segment LED display and get
keypresses from the keypad.
Includes sample program illustrating how to use them.
Tested on real KIM-1 hardware.
2023-03-29 18:40:10 -04:00

32 lines
1.2 KiB
PHP

; ---------------------------------------------------------------------------
;
; KIM-1 definitions
;
; ---------------------------------------------------------------------------
RAMSTART := $0200 ; Entry point
; ---------------------------------------------------------------------------
; Monitor Functions
; ---------------------------------------------------------------------------
OUTCHR := $1EA0 ; Output character
INTCHR := $1E5A ; Input character without case conversion
DUMPT := $1800 ; Dump memory to tape
LOADT := $1873 ; Load memory from tape
START := $1C4F ; Enter KIM-1 monitor
SCANDS := $1F1F ; Scan 7-segment display
KEYIN := $1F40 ; Open up keyboard channel
GETKEY := $1F6A ; Return key from keyboard
; ---------------------------------------------------------------------------
; System Memory
; ---------------------------------------------------------------------------
SAL := $17F5 ; Tape load address low
SAH := $17F6 ; Tape load address high
EAL := $17F7 ; Tape address end low
EAH := $17F8 ; Tape address end high
ID := $17F9 ; Tape Identification number