Nikki0

nikki0 is a program that runs on the naravm 0.1 as a “human readable” layer over the binary format nara vmfile. It was written in paper, then copied over byte by byte with bvi into the binary nara vmfile.

An example program:

00 00 00 38
    02 02 01 01 02
    02 02 02 02 02
    02

it:

• ignores whitespace
• lexes numbers with form [0-9]+ and prints each of them to stdout as a u8
• just prints any other byte as-is

To run it:

• Download the Nara VM v0.0.5
• Download nikki0
• Write your program to /home/fernando/program.bin - this path is hardcoded
• Run nikki0 with naravm-0.0.5
• The output will be written to stdout

nikki0_1.txt - nikki0.1

Written in nikki0, it changes things:

• ignores whitespace
• lexes hex numbers like [0-9a-fA-F]+ and prints to stdout as u8
• lexes strings: inside double quotes any byte is just printed: "hello123"
• fails on any other char

An example program:

00 00 00 65                 ; blob len
    "nikki1"                ;  @0-6, len=6
    "<entrypoint>"          ;  @6-18, len=12

; --------------------------------------------------
;  nikki1::<entrypoint>
; -------------------------------------------------{
00 00 00 01   ; function name pool idx
00 00 00 4A   ; function len
    20 00 04                          ;    :
    05 2A 31                          ;    : 2A = argv arr
    2C 0B 2A 00                       ;    : 0B = argc

To run it:

• Download the Nara VM v0.0.5
• Download nikki0.1
• Write your program to /home/fernando/program.bin - this path is hardcoded
• Run nikki0.1 with naravm-0.0.5
• The output will be written to stdout