单片机入门（一个max函数直接嵌入问题）

物火卿腾

#include<reg51.h>
max(char a, char b);
void main(void)
{  
  char a = 20,b = 56,c;
  c = max(a, b);
  #pragma asm   //直接嵌入汇编代码
DE      SEGMENT CODE
RSEG    DE
MOV       A,R7    //取参数
MOV  30H, R5
CJNE    A, 30H, TAG
TAG:
JNC EXIT
MOV      A, R5    //返回参数
MOV  R7, A
EXIT:   RET                     
  #pragma endasm  
}

这样写有什么问题？

物火卿腾

#include<reg51.h>
max(char a, char b);
void main(void)
{&#160;&#160;
&#160; char a = 20,b = 56,c;
&#160; c = max(a, b);
&#160; #pragma asm&#160; &#160;//直接嵌入汇编代码
DE&#160; &#160; &#160; SEGMENT CODE
RSEG&#160; &#160; DE
MOV&#160; &#160; &#160; &#160;A,R7&#160; &#160; //取参数
MOV&#160; 30H, R5
CJNE&#160; &#160; A, 30H, TAG
TAG:
JNC EXIT
MOV&#160; &#160; &#160; A, R5&#160; &#160; //返回参数
MOV&#160; R7, A
EXIT:&#160; &#160;RET &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;&#160;
&#160; #pragma endasm&#160;&#160;
}

看这个

物火卿腾

物火卿腾 发表于 2020-4-5 08:53
#include
max(char a, char b);
void main(void)

发帖时怎么多出&#160？