Stm32通过汇编反c语言,STM32在KEIL平台反汇编代码分析

int main(void)

{

RCC->APB2ENR |= RCC_APB2ENR_IOPBEN;

GPIOB->CRL &= ~(0xfCRL |= 0x2ODR &= ~(1<<1);

return 0;

}

//main.h

#define RCC_APB2ENR (*(unsigned int *)0x40021018)

#define GPIOB_CRL (*(unsigned int *)0x40010c00)

#define GPIOB_ODR (*(unsigned int *)0x40010c0c)

汇编窗口往上翻，确实很多语句。

先看这几行代码的汇编

先说最常用的两句汇编

LDR r0,[r1]    r0 = *r1

STR  r0,[r1]    *r1 = r0

MOV r0，r1    r1->r0拷贝

资料参考，可以搜索

http://blog.csdn.net/tanyouliang/article/details/6767011

http://blog.csdn.net/a1875566250/article/details/8507168