World's only Cross-platform C compiler written in Arm Assembly

[z29LiTp5qUC30n]

It also appears to be the only C compiler in the world written in Arm assembly.

https://github.com/oriansj/mescc-tools-seed/blob/master/armv7l/GAS/cc_x86.S

[coldtea]

Cross platform / Arm assembly? How does that work?