Go to file

neauoire 743eaef47a Ported some of the examples to the new accessors		2021-04-21 11:12:42 -07:00
etc	Merged sandwich	2021-04-20 17:11:02 -07:00
projects	Ported some of the examples to the new accessors	2021-04-21 11:12:42 -07:00
src	Ported some of the examples to the new accessors	2021-04-21 11:12:42 -07:00
.clang-format	*	2021-01-30 14:25:48 -08:00
.gitignore	Add beginnings of assembler project.	2021-03-31 23:55:02 +01:00
LICENSE	init	2021-01-29 11:17:59 -08:00
README.md	Ported some of the examples to the new accessors	2021-04-21 11:12:42 -07:00
build.sh	Implemented PEK/POK/GET/PUT	2021-04-21 10:23:58 -07:00
mkfile	Added graphical example to file device	2021-04-13 11:38:22 -07:00

README.md

Uxn

A stack-based VM, written in ANSI C.

Build

To build the Uxn emulator, you must have SDL2.

./build.sh 
	--debug # Add debug flags to compiler
	--cli # Run rom without graphics

Emulator Controls

ctrl+h toggle debugger
alt+h toggle zoom

Uxambly

Read more in the Uxambly Guide.

( dev/console )

%RTN { JMP2r }

( devices )

|10 @Console    [ &pad $8 &char $1 ]

( init )

|0100 ( -> )
	
	;hello-word ;print JSR2
	
BRK

@print ( addr -- )
	
	&loop
		( send ) DUP2 GET .Console/char DEO
		( incr ) #0001 ADD2
		( loop ) DUP2 GET #00 NEQ ,&loop JNZ
	POP2

RTN

@hello-word "hello 20 "World!

TODOs

Shortcut to export/import disk state
Implement Uxambly REPL
Load disks at a different place than 0x0000.
Curl device? 8-bit web browser?

Palettes

#6a03 #4a0d #aa0c, purple/cyan
#a1f3 #a14d #a16c, grey-pink/teal
#8c4b #884b #e8bb, commodore64

Refs

https://code.9front.org/hg/plan9front/file/a7f9946e238f/sys/src/games/nes/cpu.c http://www.w3group.de/stable_glossar.html http://www.emulator101.com/6502-addressing-modes.html http://forth.works/8f0c04f616b6c34496eb2141785b4454 https://justinmeiners.github.io/lc3-vm/