ARM cortex-m4 : registers

Ref: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0553a/CHDBIBGJ.html


R0~R12 : general registers

R13 : SP : stack register

R14 : LR : Link register

R15 : PC : Program Counter

PSR : Program Status Register

N : Negative

Z : Zero

C : Carried out

V : oVerflow

Q : saturation has occurred during certain operation