rmmh

[0-9a-zA-Z]{2}

30-39,41-5a,61-7a

a:61 z:7a A:41 Z:5a 0:30 9:39

MSP430 alphanumeric shellcode is hard. There's no way to write to memory, 
no word-sized reg-reg operations, and all we have is add/sub/mov and a few conditional jumps.

hdznrrd

// this is a very basic mutex implementation
// its aim is to try to acquire access to a critical section or fail.
// there is no spinlock or event-waiting going on.
// in case it fails to acquire the lock, it simply returns false.
//
//
// relevant read:
//
// Synchronization primitives
// http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0552a/BABHCIHB.html

ianmcmahon

/*
 * Copyright (C) 2013 Ian McMahon <imcmahon@prototechnical.com>
 *
 * Virtual cape enabling SPIDEV on SPI0 on connector pins P9.22 P9.21 P9.18 P9.17
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
/dts-v1/;