DCPU-16

DCPU-16 assembler, disassembler and emulator written in Rust 1.0.

More info about the DCPU-16:

• https://en.wikipedia.org/wiki/0x10c
• https://raw.githubusercontent.com/gatesphere/demi-16/master/docs/dcpu-specs/dcpu-1-7.txt

To run DCPU-16 programs with hardware devices (such as a monitor), see:

• dcpu16-gui

Completed features

• Assembler (feature complete)
  • Labels
  • String literals
  • Readable error messages
• Disassembler (feature complete)
  • Separate tokenizer
  • Colorized output
• Emulator
  • Basic instructions
  • Conditionals
  • Jumps
  • Some hardware support

Planned

• Emulator
  • ADX, SBX, STI, STD
  • INT, IAG, IAS, RFI, IAQ
  • Better support for hardware

Binaries

• assembler
  • $ assembler program.asm -o program.bin
• disassembler
  • $ disassembler program.bin
• tokenizer
  • $ tokenizer program.bin
• emulator
  • $ emulator -p program.bin

Library

Apart from providing binaries, this crate can also be used as a library and embedded into other programs.

Extentions

Some extensions (possibly temporary):

--- Special opcodes: (5 bits) --------------------------------------------------
 C | VAL  | NAME  | DESCRIPTION
---+------+-------+-------------------------------------------------------------
 0 | 0x13 | OUT a | prints a null-terminated string located at a in memory
---+------+-------+-------------------------------------------------------------

Since hardware is not supported, you can use OUT to print to regular standard output. Another temporary behavior is that the CPU is terminated if it reads a 0x00 instruction.

Example

Save the following as prog.dasm16:

            OUT hello                   ; Print the string defined at 'hello'
            DAT 0                       ; This will terminate the program    

:hello      DAT "Hello World!\n", 0

Assemble the program:

$ assembler prog.dasm16 -o prog.bin

Run it:

$ emulator prog.bin
Hello World!