nesdev

I’m just playing around, not meant to be useful for anyone but me :)

Getting started

Install cc65 (a freeware C compiler for 6502 based systems)

brew install cc65

Add Vim syntax highlighting for the ca65 assembler using Vundle

Plugin 'maxbane/vim-asm_ca65'

" ASM ca65
au BufRead,BufNewFile *.s set filetype=asm_ca65

Emulators (running under OS X)

• Nestopia
• FCEUX

I’ve also been using a few different NES emulators written in Go:

• nes (my favorite so far)
• nintengo

Read the Programming NES games in C article

and then

Watch the NES C Programming Examples video

Makefile for the CC65 NES examples

compile = \
	ca65 crt0.s;                                           \
	cc65 -Oi $(1).c --add-source;                          \
	ca65 $(1).s;                                           \
	ld65 -C $(2).cfg -o $(1).nes crt0.o $(1).o runtime.lib \

all: 1 2 3 4 5 6 7 8 9

1:
	$(call compile,example1,nrom_128_horz)

2:
	$(call compile,example2,nrom_128_horz)

3:
	$(call compile,example3,nrom_128_horz)

4:
	$(call compile,example4,nrom_128_horz)

5:
	$(call compile,example5,nrom_128_horz)

6:
	$(call compile,example6,nrom_128_horz)

7:
	$(call compile,example7,nrom_128_horz)

8:
	$(call compile,example8,nrom_128_horz)

9:
	$(call compile,example9,nrom_128_horz)

clean:
	rm *.o *.nes

With this makefile you should be able to compile all of the examples under OS X.

PPU Palettes

Links

• Hardware Info)
• NES CHR Editor a (Mac OS X) sprite editor for Nintendo Entertainment System games.