VLAHB
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Published
20 hours ago •
Kully
Kully
A Virtual Machine written in C and an Assembler written in Python.
VLAHB
- An original assmebly langauge you can use to write your own games.
- For details on the underlying mechanics of the language, read this blog post.
Virtual machine
Linker
Assembly
Hex
Binary
Building
$ ./run.sh
(NB Pick which asm files to compile on this line of run.sh)
Statically Linking files
-s is a flag for statically-linking all the .asm files in the /asm directory. If you list 1 or more .asm filenames w/o the -s flag, it will only compile those files and start at the first one. If you list 1 or more .asm filenames with the -s flag, it will compile all the files in the /asm directory and start with the first one.
| code | meaning |
|---|---|
$ python3 assembler.py A.asm B.asm C.asm |
Compile A, B and C and start the vm at A.asm |
$ python3 assembler.py C.asm -s |
Compile all files in /asm and start at top of C.asm |
$ python3 assembler.py B.asm C.asm -s |
Compile all files in /asm and start at top of B.asm |
Debug Messages
Turn on DEBUG mode here to get helpful debug messages printed per instruction in terminal. Slows down virtual machine a ton.
View Machine Code
Run $ xxd -c 4 bin/file.bin to view the machine code displayed as hex in the terminal.
Specs
- virtual machine, assembler/compiler
- 48 opcodes
- 262KB of ram
- 160x144 pixel display
- static linking capable
- 60 fps
- vm runs on SDL2
- written in C and Python
- lots of fun! :smile_cat:
Kully