if-statement - 汇编中if-else怎么写？

Question

下面的 if else 语句用汇编语言怎么写？

C 代码:

If ( input < WaterLevel)
{
     MC = 1;
}
else if ( input == WaterLevel)
{
     MC = 0;
}

伪代码

If input < Water Level
Send  1 to microcontroller
Turn Motor On


Else if input == Water Level
Send 0 to microcontroller
Turn Motor Off

不完整的组装:(MC-微 Controller )

CMP Input, WaterLevel
MOV word[MC], 1

MOV word[MC], 2

Answer 1

如果我们想用 C 语言做一些事情，比如:

if (ax < bx)
{
    X = -1;
}
else
{
    X = 1;
}

它在汇编中看起来像这样:

 cmp    ax, bx      
 jl     Less  
 mov    word [X], 1    
 jmp    Both            
Less: 
 mov    word [X], -1  
Both: