A simple project for everyone having interest to learn an assembler of 6502 Cpu.
To use it you need to install cc65.
cc65 is tools to compile, link and make binary rom file.
git clone https://github.com/cc65/cc65.git
cd cc65
makeSource https://cc65.github.io/getting-started.html
first, write a simple program using assembler.
hello_world.asm
.SEGMENT "RESET"
.WORD $8000
.SEGMENT "CODE"
LDY $00
LDA Message, Y
Loop:
STA $2000
INY
LDA Message, Y
CMP $0A
BNE Loop
STA $2000
NOP
Message:
.BYTE "Hello World!", $0A
Then add section in Makefile
hello_world:
ca65 --cpu 6502 hello_world.asm
ld65 -C linker.ld --obj hello_world.o -o rom.bin
After that you can make a binary rom using
make hello_world iside the examples folder.
As a result you may see rom.bin file to run it inside the emulator.
Just run ./6502_cpu_emulator examples/rom.bin.
