20 lines
1.2 KiB
Markdown
20 lines
1.2 KiB
Markdown
|
# 8-bit Breadboard Computer with W65C02S Processor
|
||
|
|
This repo contains the assembly code for my [6502-project](https://quintern.xyz/de/6502.html).
|
||
|
|
|
||
|
|
The assembler used for this project is [vasm](http://www.compilers.de/vasm.html).
|
||
|
|
After assembling it, the binary is loaded onto the EEPROM using [my *eeprom.py* script](https://git.quintern.xyz/MatthiasQuintern/AT28C256-rpi-util) on a Raspberry Pi 4B.
|
||
|
|
|
||
|
|
## Operating System
|
||
|
|
... is probably a far stretch, since it is just the programs I wrote pieced together. My "os" consists of these functionalities:
|
||
|
|
- Main Menu:
|
||
|
|
- Printer: Prints the characters you press on the keypad to the lcd.
|
||
|
|
- Temperature: Shows the temperature using a dht sensor. *Work in progress, this does not work yet*
|
||
|
|
- Text 1: Show a 4x16 character text (defined at compile time)
|
||
|
|
- Text 2: Show a 4x16 character text (defined at compile time)
|
||
|
|
- Ringbuffer for pressed keys.
|
||
|
|
|
||
|
|
> It's not much, but it's honest work.
|
||
|
|
|
||
|
|
## Debug-Utility (with Raspberry Pi 4)
|
||
|
|
`monitor.py` is a python program to monitor the address-bus, data-bus and the read-write pin of the computer. It prints the current address and data in binary and hexadecimal on each clock cycle.
|