Difference between
modified post 87fddc by Anonymous on Mon 14th Jan 2013 19:46
original post af1 by Anonymous on Mon 14th Jan 2013 18:54
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START:

1	1		START:
2	2		MOV AH,00h ;get into video mode. 00 = Set Video Mode
3	3		MOV AL,13h ;13h = 320x240x16
4	4		INT 10h
5	5		SET_VSEGMENT: ;set up video segment
6	6		MOV AX,0A000h ;point ES to VGA segment
7	7		MOV ES,AX
8	8		VALUES: ;various values used for plotting later on
9	9		MOV CX,15 ;length of line. used for REP
10	10		%macro get_offset 2 ;%1 = X and %2 = y . calculates the offset location
11		-	PUSH AX
12		-	PUSH BX
13	11		MOV AX,%1 ;copy X location passed to macro to AX
14	12		MOV BX,%2 ;copy Y location passed to macro to BX
15	13		MOV DI,AX ;put X location into DI
16	14		MOV DX,BX ;and Y into DX
17	15		SHL BX,8 ;Y * 2^8. same as saying Y * 256
18	16		SHL DX,6 ;Y * 2^8. same as saying Y * 64
19	17		ADD DX,BX ;add the two together
20	18		ADD DI,BX ;and add the X location
21		-	POP BX
22		-	POP AX
23	19		%endmacro ;end macro
24	20
25	21
26	22
27	23
28	24
29	25		; starting Y location.
30		-	MOV BX,100
	26	+	MOV BX,0x64
33	27		MOV AL,0
	28	+	LL1:
34	34		STOSB
35		-	MOV AX,102 ;X location
	35	+	POP BX
36		-	get_offset AX,BX
	36	+	POP AX
37		-	MOV AL,1
	37	+	ADD AX,0x02
38		-	STOSB
	38	+	ADD AL,0x01
39		-	MOV AX,104 ;X location
	39	+	CMP AL,0xc8
40		-	get_offset AX,BX
	40	+	JNE LL2
41		-	MOV AL,2
	41	+
42		-	STOSB
	42	+	ADD BX,0x01
43		-	MOV AX,106 ;X location
	43	+	CMP BX,0xF
44		-	get_offset AX,BX
	44	+	JNE LL1
45		-	MOV AL,3
	45	+
46		-	STOSB
	46	+	WAIT_FOR_KEY_PRESS:
47		-	MOV AX,108 ;X location
	47	+	MOV AH,0x00
48		-	get_offset AX,BX
	48	+	INT 0x16
49		-	MOV AL,4
	49	+	REBOOT:
50		-	STOSB
	50	+	DB 0xEA
51		-	MOV AX,110 ;X location
	51	+	DW 0x0000
52		-	get_offset AX,BX
	52	+	DW 0xFFFF
53		-	MOV AL,5
	53	+	times 0200h - 2 - ($ - $$) db 0
54		-	STOSB
	54	+	SIGNATURE DW 0xAA55
55		-	MOV AX,112 ;X location
	55	+
56		-	get_offset AX,BX
	56	+
57		-	MOV AL,6
	57	+
58		-	STOSB
	58	+
59		-	MOV AX,114 ;X location
	59	+
60		-	get_offset AX,BX
	60	+
61		-	MOV AL,7
	61	+
62		-	STOSB
	62	+
63		-	MOV AX,116 ;X location
	63	+
64		-	get_offset AX,BX
	64	+
65		-	MOV AL,8
	65	+
66		-	STOSB
	66	+
67		-	MOV AX,118 ;X location
	67	+
68		-	get_offset AX,BX
	68	+
69		-	MOV AL,9
	69	+
70		-	STOSB
	70	+
71		-	MOV AX,120 ;X location
	71	+
72		-	get_offset AX,BX
	72	+
73		-	MOV AL,10
	73	+
74		-	STOSB
	74	+
75		-	MOV AX,122 ;X location
	75	+
76		-	get_offset AX,BX
	76	+
77		-	MOV AL,11
	77	+
78		-	STOSB
	78	+
79		-	MOV AX,124 ;X location
	79	+
80		-	get_offset AX,BX
	80	+
81		-	MOV AL,12
	81	+
82		-	STOSB
	82	+
83		-	MOV AX,126 ;X location
	83	+
84		-	get_offset AX,BX
	84	+
85		-	MOV AL,13
	85	+
86		-	STOSB
	86	+
87		-	MOV AX,128 ;X location
	87	+
88		-	get_offset AX,BX
	88	+
89		-	MOV AL,14
	89	+
90		-	STOSB
	90	+
91		-	MOV AX,130 ;X location
	91	+
92		-	get_offset AX,BX
	92	+
93		-	MOV AL,15
	93	+
94		-	STOSB
	94	+
95		-	MOV AX,132 ;X location
	95	+
96		-	get_offset AX,BX
	96	+
97		-	MOV AL,16
	97	+
98		-	STOSB
	98	+
99		-	ADD BX,01h
	99	+
100		-	CMP BX,200
	100	+
101		-	JNE LOOP_LABEL
	101	+
102	102
103		-	WAIT_FOR_KEY_PRESS:
	103	+
104		-	MOV AH,0x00
	104	+
105		-	INT 0x16
	105	+
106		-	REBOOT:
	106	+
107		-	DB 0xEA
	107	+
108		-	DW 0x0000
	108	+
109		-	DW 0xFFFF
	109	+
110		-	SIGNATURE DW 0xAA55
	110	+