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{{ define "index" }}
{{ template "head" . }}
<body>
{{ template "nav" . }}
{{ if .logged_in }}{{ else }}
{{ end }}
<span id="r2wars"></span>
<h1><a href="#r2wars">r2wa.rs</a></h1>
{{ if .err }}
<div class="error">{{ .err }}</div>
{{ end }}
This is the r2wars web platform. Here, you can manage your bots and let them
"fight" (be executed) in the same memory space as others.
Under the hood, the <a href="https://radare.org/n/">radare2</a> <a href="https://book.rada.re/emulation/intro.html">ESIL Emulation</a> is used to allow all fun combinations!
<span id="r2wars"></span>
<h2><a href="#r2wars">What is it and how does it work?</a></h2>
Essentially
<br><br>
<pre class="code">
; r2 malloc://1024 # allocate 1KB of memory
[0x00000000]> e asm.arch = x86 # define the arch to use
[0x00000000]> e asm.bits = 32 # define the bits to use
[0x00000000]> aei # init vm
[0x00000000]> aeim # init staack
[0x00000000]> waf bot.asm # write bot to memory
[0x00000000]> aer PC = 0x100 # set program counter
[0x00000000]> aer SP = SP + 0x100 # set stack pointer
[0x00000000]> e cmd.esil.todo=f theend=1 # define end condition
[0x00000000]> e cmd.esil.trap=f theend=1 # define end condition
[0x00000000]> e cmd.esil.intr=f theend=1 # define end condition
[0x00000000]> e cmd.esil.ioer=f theend=1 # define end condition
[0x00000000]> f theend=0 # set the end flag to 0
[0x00000000]> aes # step
[0x00000000]> ?v 1+theend # check if the end cond. is met
.. # in a loop
[0x00000000]> aes # step
[0x00000000]> ?v 1+theend # check if the end cond. is met
</pre>
<br>
More info in the following blogpost: <a href="https://emile.space/blog/2020/r2wars/">https://emile.space/blog/2020/r2wars/</a>
<br>
<br>
<pre>
╭──╮ ╭──────────────────────╮
│ _│_ │ │
│ O O < LET THE GAMES BEGIN! │
│ │╷ │ │
│ ││ ╰──────────────────────╯
│ ─╯│
╰───╯
</pre>
</body>
{{ template "footer" . }}
{{ end }}
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