I started playing the excellent IOARM wargame on netgarage. No, don’t be expecting spoilers, hints, or walk-throughs, I’m not that kind of guy. This is merely a list of interesting reading I’ve discovered to help me understand the ARM architecture and ARM assembly.

• Docker containers for cross-compilation
• ARMwiki
• ARM Syscalls (I’m not sure why they all seem to have +0x900000 to their value, you certainly don’t use them that way.)
• ARM Assembly System Calls (This is part of a bigger series that looks excellent at a glance.)
• Shellcode on ARM architecture
• Syscall.tbl for ARM (Use with the w3challs.com version to see arguments used.)
• Calling Conventions
• GDB with User-Mode QEMU