| "Hopefully I copied it correctly from my image and CodeChanges." | |
| Object subclass: #GameOfLife | |
| instanceVariableNames: 'grid grid1 grid2 side' | |
| classVariableNames: '' | |
| package: 'KartikAgaram'. | |
| GameOfLife >> initialize | |
| side := 10. | |
| grid1 := (Array2D rows: side columns: side element: 0). |
| #include <SDL2/SDL.h> | |
| #include <stdio.h> | |
| int error(char *msg, const char *err) { | |
| printf("Error %s: %s\n", msg, err); | |
| return 0; | |
| } | |
| #define HOR 32 | |
| #define VER 16 |
| import sys | |
| def parse(inst): | |
| dir, mag = inst[0], int(inst[1:]) | |
| if dir == 'U': return (0, -mag) | |
| if dir == 'D': return (0, mag) | |
| if dir == 'L': return (-mag, 0) | |
| if dir == 'R': return (mag, 0) | |
| raise 'bad inst {}'.format(inst) |
| (def parse (inst) | |
| (with (dir inst.0 | |
| mag (int (cut inst 1))) | |
| (case dir | |
| #\U (list 0 (* -1 mag)) | |
| #\D (list 0 mag) | |
| #\L (list (* -1 mag) 0) | |
| #\R (list mag 0)))) | |
| (def add (a b) |
| // Linux only. | |
| // gcc x.c && ./a.out | |
| // | |
| // Example run on a 64-bit system: | |
| // 0x56339fd78000 0x56339f74601a | |
| // 0x56339fd78000 0x56339f74601b | |
| // 0x56339fd78000 0x56339f74601c | |
| // 0x56339fd78000 0x56339f74601d | |
| // 0x56339fd78000 0x56339f74601e | |
| // ... |
| (mac every (n . body) | |
| `(thread | |
| (while t | |
| (sleep ,n) | |
| ,@body))) | |
| ;; try it out | |
| ; print a heartbeat every second | |
| (every 1 (prn ".")) |
| ; attempt to read argc | |
| ; | |
| ; Build and run on 32-bit Linux: | |
| ; $ nasm -f elf x.s | |
| ; $ gcc -Wall -s -nostdlib x.o -o x | |
| ; $ ./x; echo $? | |
| ; 77 # expected: 1 | |
| ; $ ./x abc; echo $? | |
| ; 73 # expected: 2 | |
| ; $ ./x abc def; echo $? |
$ subx
Welcome to SubX, a better way to program in machine code.
SubX uses a subset of the x86 instruction set. SubX programs will run without modification on Linux computers.
It provides a better experience and better error messages than programming directly in machine code, but you have to stick to the instructions it supports.
== Ways to invoke subx
- Run tests:
subx test
- See this message:
| cat *.cc |line-length.pl |sort -nr |less |
| #!/bin/bash | |
| # | |
| # Use the regular 'tmux' command and '.tmux.conf' to run tmux for managing | |
| # multiple sessions running long-running commands that you might need to | |
| # detach from to go offline. | |
| # | |
| # Use this script to manage a special hard-coded session called 'ide' with | |
| # editor and shell windows configured how you want it. | |
| if tmux has-session -t ide >&/dev/null |