Arguments: & rdi & rsi & rdx & rcx & r8 & r9 && \\ & hp & asp & A1 & A0 & A2 & scr && \\ \hline Result: & rax & rdx &&&&&& \\ & B0 & A1 &&&&&& \\ \hline Callee-saved: & rbx & rbp & r12 & r13 & r14 & r15 && \\ & B1 & scr & B4 & B5 & B6 & free &&