-
Notifications
You must be signed in to change notification settings - Fork 0
/
DHTF6.asm
302 lines (283 loc) · 3.09 KB
/
DHTF6.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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
JMP MAIN
.ORG 003CH
JMP ISR75
.ORG 0050
MAIN: LXI SP,FFFFH
CALL LCD_INIT
MVI A,0FH
SIM
CALL DELAY_1 ; 1 sec delay
MVI A,C0H
SIM
CALL DELAY_20
MVI A,40H
SIM
;MVI A,43H
;CALL LCD_SEND
CALL DELAY_20U
CALL DELAY_80
CALL DELAY_80
L1: ;RIM
;ANI 80H
;JZ L1
L2: ;RIM
;ANI 80H
;JNZ L2
;MVI A,30H ; CONTROL WORD FOR 8254
;CALL LCD_SEND
;OUT 03H ; PORT ADDRESS OF CONTROL REGISTER
;MVI A,FFH ; LOW ORDER BYTE
;OUT 00H
;MVI A,FFH ; HIGH ORDER BYTE
;OUT 00H
LXI H,8000H
MVI A,0BH
SIM
EI
MVI A,00H
ADI 20H
L3: JNZ L3
DI
MVI A,0FH
SIM
LXI H,8000H
CALL DATA_GET
STA 9000H
CALL LCD_SEND
CALL DATA_GET
STA 9001H
CALL LCD_SEND
CALL DATA_GET
STA 9002H
CALL LCD_SEND
CALL DATA_GET
STA 9003H
CALL LCD_SEND
; BINARY TO BCD CONVERTION
LXI H,9000H
MOV A,M
CALL PWRTEN
LXI H,A000H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
LXI H,9001H
MOV A,M
CALL PWRTEN
LXI H,A000H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
LXI H,9002H
MOV A,M
CALL PWRTEN
LXI H,A000H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
LXI H,9003H
MOV A,M
CALL PWRTEN
LXI H,A000H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
INX H
MOV A,M
ADI 30H
CALL LCD_SEND
MVI A,20H
CALL LCD_SEND
HLT
PWRTEN: LXI H,A000H
MVI B,64H
CALL BINBCD
MVI B,0AH
CALL BINBCD
MOV M,A
RET
BINBCD: MVI M,FFH
NXTBUF: INR M
SUB B
JNC NXTBUF
ADD B
INX H
RET
DATA_GET: MVI B,08H
MVI D,00H
L4: MOV A,D
MOV C,M
ORA C
RLC
INX H
DCR B
MOV D,A
MOV A,B
JNZ L4
MOV A,D
RET
DELAY_20: PUSH B
LXI B,681H
LOOP_20: DCX B
MOV A,B
ORA C
JNZ LOOP_20
POP B
RET
DELAY_20U: PUSH PSW
MVI A,01H
LOOP_20U: DCR A
JNZ LOOP_20U
POP PSW
RET
DELAY_1: PUSH B
PUSH D
MVI B,2EH
Loop1: MVI C,6AH
Loop2: MVI D,1CH
Loop3: DCR D
JNZ Loop3
DCR C
JNZ Loop2
DCR B
JNZ Loop1
POP D
POP B
RET
DELAY: PUSH PSW
MVI A,0FH
LOOP: DCR A
JNZ LOOP
POP PSW
RET
LCD_INIT : PUSH PSW
MVI A,24H
OUT 01H
MVI A,20H
OUT 01H
CALL DELAY
MVI A,24H
OUT 01H
MVI A,20H
OUT 01H
CALL DELAY
MVI A,84H
OUT 01H
MVI A,80H
OUT 01H
CALL DELAY
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
MVI A,E4H
OUT 01H
MVI A,E0H
OUT 01H
CALL DELAY
MVI A,04H
OUT 01H
MVI A,00H
OUT 01H
CALL DELAY
MVI A,64H
OUT 01H
MVI A,60H
OUT 01H
POP PSW
RET
LCD_SEND: PUSH PSW
PUSH B
PUSH D
MOV B,A
ANI F0H
MVI D,0CH
ORA D
OUT 01H
CALL DELAY
ANI F8
OUT 01H
MOV A,B
RLC
RLC
RLC
RLC
ANI F0H
MVI D,0CH
ORA D
OUT 01H
CALL DELAY
ANI F8H
OUT 01H
POP D
POP B
POP PSW
RET
ISR75: PUSH PSW
PUSH B
MVI B,00H
ISR_L1: RIM
ANI 80H
INR B
JNZ ISR_L1
MOV A,B
CPI 04H
JC BIT_0
JNC BIT_1
INX H
POP B
POP PSW
DCR A
EI
RET
BIT_0 : PUSH PSW
MVI A,00H
MOV M,A
POP PSW
RET
BIT_1: PUSH PSW
MVI A,01H
MOV M,A
POP PSW
RET
DELAY_80: PUSH PSW
MVI B,0BH
DELAY_80Loop: DCR B
JNZ DELAY_80Loop
POP PSW
RET