Arm Instruction Set Assembly 解读实例

最近对Arm 汇编很感兴趣，就找到了《Instruction Set Assembly Guide for Armv7》学习一下，特此记录2个实例分析。

实例一

0001108c <out_standby>:// 函数start address 是0x0001108c
out_standby():
vendor/novatek/proprietary/audio/hal/audio_stream_deepbuf.c:309

//source code:

//struct stream_out *out = (struct stream_out *)stream;
   1108c:    b5b0          push    {r4, r5, r7, lr}

//Push registers onto a full descending stack.

//Registers are stored on the stack in numerical order, with the lowest numbered register at the lowest address.

//r4, r5, r7, lr register 入栈 （lr register is r14 register）
   1108e:    4604          mov    r4, r0