Intel汇编语言程序设计课后习题,6.5.5
把C语言翻译成汇编语言
if
(dx
<=
cx)
x
=
1
else
x
=
2
main PROC
mov
edx,
4
mov
ecx,
5
cmp
edx,ecx
jle
L1
mov
x,
2
jmp
next
L1:
mov
x,
1
next:
mov
eax,x
call
WriteDec
ret
main endp
if
(bx
>
cx)
x
=
1
mov
eax,
4
mov
ebx,
5
cmp
eax,ebx
jg
next
mov
x,
1
mov
eax,x
call
WriteDec
next:
ret
if
(Val1
>
cx AND cx
>
dx)
X
=
1
else
X
=
2
.data
X DWORD
?
Val1 DWORD
9
.code
main PROC
mov ecx,
8
mov edx,
7
cmp Val1,ecx
jle next
cmp ecx,edx
jle next
mov X,
2
jmp L2
next:
mov X,
1
L2:
mov eax,X
call WriteDec
ret
main endp
if
(bx
>
cx OR bx
>
VAL1)
X
=
1
else
X=2
.data
X DWORD ?
Val1 DWORD
9
.code
main PROC
mov
ebx,
5
mov
ecx,
6
cmp
ebx,ecx
jg
L1
cmp
ebx,Val1
jg
L1
mov
X,
2
jmp
next
L1:
mov
X,
1
next:
mov
eax,X
call
WriteDec
ret
main endp
if
(bx
>
cx AND bx
>
dx) OR (dx
>
ax)
X
=
1
else
X
=
2
main PROC
mov
ebx,
5
mov
ecx,
6
mov
edx,
7
mov
eax,
8
cmp
edx,eax
jg
L1
cmp
ebx,ecx
jle
L2
cmp
ebx,edx
jle
L2
L1:
mov
X,
1
jmp
next
L2:
mov
X,
2
jmp
next
next:
mov
eax,X
call
WriteDec
ret
main endp