-
Notifications
You must be signed in to change notification settings - Fork 2
/
Copy path007.asm
124 lines (91 loc) · 1.7 KB
/
007.asm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
.model small
.stack 100h
.data
a db ?
b db ?
c db ?
d db ?
e db ?
f db ?
.code
main proc
mov ax, @data
mov ds, ax
; input a b
mov ah, 1
int 21h
mov a, al
int 21h ; space
mov bl, al
int 21h
mov b, al
;---------------------
; add c = a + b
mov bl, a
mov c, bl
mov bl, b
add c, bl
sub c, 48
;---------------------
; sub d = a - b
mov bl, a
mov d, bl
mov bl, b
add d, bl
sub d, 54
;---------------------
; print a + b = c
mov ah, 2 ; new line
mov dl, 0ah
int 21h
mov dl, 0dh
int 21h
mov dl, a ; print a
int 21h
mov dl, 20h ; space
int 21h
mov dl, 2bh ; +
int 21h
mov dl, 20h ; space
int 21h
mov dl, b ; print b
int 21h
mov dl, 20h ; space
int 21h
mov dl, 3dh ; =
int 21h
mov dl, 20h ; space
int 21h
mov dl, c
int 21h
;---------------------
; print a - b = d
mov ah, 2 ; new line
mov dl, 0ah
int 21h
mov dl, 0dh
int 21h
mov dl, a ; print a
int 21h
mov dl, 20h ; space
int 21h
mov dl, 2dh ; -
int 21h
mov dl, 20h ; space
int 21h
mov dl, b ; print b
int 21h
mov dl, 20h ; space
int 21h
mov dl, 3dh ; =
int 21h
mov dl, 20h ; space
int 21h
mov dl, d
int 21h
;---------------------
exit:
mov ah, 4ch
int 21h
main endp
end main