ret:pop IP
retf:pop? ip；pop cs
call?标号：push?ip ；jmp?near ptr?标号
call?far?ptr?标号：push?cs；push?ip；jmp?far?ptr?标号
call 16位?reg：push?ip；jmp 16位?reg
call?word?ptr?内存单元地址：push?ip；jmp?word?ptr?内存单元地址
mul?乘法命令，相乘位数要相同：
8位*8位=>16位
16位*16位=>DX[存储高位] AX【存储低位】
mul乘法?用到ax dx两个通用寄存器代码：
assume cs:code
data segment
dw 1,2,3,4,5,6,7,8
dd 0,0,0,0,0,0,0,0
data ends
code segment
start:mov ax,data
mov ds,ax
mov si,0
mov di,16
mov cx,8
s:mov bx,[si]
call cube
mov [di],ax
mov [di+2],dx
add si,2
add di,4
loop s
mov ax,4c00h
int 21h
cube:mov ax,bx
mul bx
mul bx
ret
code ends
end start
?
cs
