Xtensa_programmers_guide_中文版.pdf

val = val - 2;

该过程产生与下面类似的结果：

#-----------------------------------------------------------

movi.n a5,1

.align 1

create new space on the stack. The frame pointer is the register that is used as a base for local variables and arguments passed on the stack. These do

函数体紧跟该入口，第一条 C 代码保护信息是：

return 1;

val--;