Mkan

Register,Abbreviation,Purpose

x0,zero,Zero register (always zero)

x1,ra,Return address register

x2,sp,Stack pointer register

x3,gp,Global pointer register

x4,tp,Thread pointer register

x5-x7,-,Reserved registers

x8,fp,Frame pointer register (or s1)

x9,tp,Thread pointer register

x10-x17,t0-t7,Temporary registers

x18,s0/fp,Saved register/frame pointer register (or s0)

x19-x27,s1-s9,Saved registers

x28,gp,Global pointer register

x29,s11/fp,Saved register/frame pointer register (or s11)

x30,ra,Return address register

x31,-,Reserved register