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
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
|
jmp _main
.include "font.bin"
_setPixel_int_x__int_y__int_c:; int setPixel(int x, int y, int c)
pop V0 ; preserve function return address
pop [$71FF] ; param int x
pop [$7201] ; param int y
pop [$7203] ; param int c
push V0 ; restore function return address
mov $402F, [$7205] ; int screenStart = $402F
push [$7201] ; left operand
mov 128, V1 ; right operand
pop V0 ; get left operand back
mul V0, V1 ; compute multiplication
push AX ; left operand
mov [$71FF], V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
mov AX, [$7207] ; int i = AX
push [$7205] ; store index obj
mov [$7207], V1 ; store indexer
pop V0 ; restore index obj
mul V1, 1 ; multiply indexer by 1
add AX, V0 ; add indexer and index obj
mov AX, V0 ; move to general purpose register
movb [$7203], [V0] ; [V0] = [$7203]
mov 0, V0 ; fallback return 0
ret
_drawChar_int_ch__int_x__int_y__int_color:; int drawChar(int ch, int x, int y, int color)
pop V0 ; preserve function return address
pop [$7209] ; param int ch
pop [$720B] ; param int x
pop [$720D] ; param int y
pop [$720F] ; param int color
push V0 ; restore function return address
; adjust for jmp instruction
push $1FFF ; left operand
mov 2, V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
mov AX, [$7211] ; int fontStart = AX
push [$7209] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
mul V0, V1 ; compute multiplication
mov AX, [$7213] ; int charStart = AX
mov 0, [$7215] ; int yOff = 0
_body_1:
push [$7215] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz
jmp _end_2 ; if for condition fails, jump to end
push [$7211] ; store index obj
push [$7213] ; left operand
mov [$7215], V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
mov AX, V1 ; store indexer
pop V0 ; restore index obj
mul V1, 1 ; multiply indexer by 1
add AX, V0 ; add indexer and index obj
mov AX, V0 ; move to general purpose register
mov [V0], [$7217] ; int row = [V0]
mov 0, [$7219] ; int xOff = 0
_body_3:
push [$7219] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz
jmp _end_4 ; if for condition fails, jump to end
push [$7217] ; left operand
push 7 ; left operand
mov [$7219], V1 ; right operand
pop V0 ; get left operand back
sub V0, V1 ; compute subtraction
mov AX, V1 ; right operand
pop V0 ; get left operand back
shr V0, V1 ; compute right shift
push DX ; left operand
mov 1, V1 ; right operand
pop V0 ; get left operand back
and V0, V1 ; compute and
mov DX, [$721B] ; int bit = DX
bz [$721B] ; check ternary condition
jmp _then_5
mov [$720F], V0 ; store ternary fail result
jmp _end_6
_then_5:
mov 8, V0 ; store ternary success result
_end_6:
mov V0, [$721D] ; int pix = V0
push [$721D] ; arg int x
push [$720D] ; left operand
mov [$7215], V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; arg int y
push [$720B] ; left operand
mov [$7219], V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; arg int c
call _setPixel_int_x__int_y__int_c; int setPixel(int x, int y, int c)
push [$7219] ; i++
inc [$7219]
pop V0
jmp _body_3
_end_4:
push [$7215] ; i++
inc [$7215]
pop V0
jmp _body_1
_end_2:
mov 0, V0 ; fallback return 0
ret
_clear_int_c: ; int clear(int c)
pop V0 ; preserve function return address
pop [$721F] ; param int c
push V0 ; restore function return address
mov $402F, [$7221] ; int screenStart = $402F
push 64 ; left operand
mov 128, V1 ; right operand
pop V0 ; get left operand back
mul V0, V1 ; compute multiplication
mov AX, [$7223] ; int screenSize = AX
mov 0, [$7225] ; int i = 0
_body_7:
push [$7225] ; left operand
mov [$7223], V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz
jmp _end_8 ; if for condition fails, jump to end
push [$7221] ; store index obj
mov [$7225], V1 ; store indexer
pop V0 ; restore index obj
mul V1, 1 ; multiply indexer by 1
add AX, V0 ; add indexer and index obj
mov AX, V0 ; move to general purpose register
movb [$721F], [V0] ; [V0] = [$721F]
push [$7225] ; i++
inc [$7225]
pop V0
jmp _body_7
_end_8:
mov 0, V0 ; fallback return 0
ret
_getKeyState_int_scanCode: ; int getKeyState(int scanCode)
pop V0 ; preserve function return address
pop [$7227] ; param int scanCode
push V0 ; restore function return address
mov $6033, [$7229] ; int hid = $6033
push [$7227] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
div V0, V1 ; compute division
mov AX, [$722B] ; int index = AX
push [$7227] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
mod V0, V1 ; compute modulus
mov AX, [$722D] ; int bit = AX
push [$7229] ; store index obj
push [$722B] ; left operand
mov 1, V1 ; right operand
pop V0 ; get left operand back
sub V0, V1 ; compute subtraction
mov AX, V1 ; store indexer
pop V0 ; restore index obj
mul V1, 1 ; multiply indexer by 1
add AX, V0 ; add indexer and index obj
mov AX, V0 ; move to general purpose register
mov [V0], [$722F] ; int val = [V0]
push [$722F] ; left operand
push 1 ; left operand
mov [$722D], V1 ; right operand
pop V0 ; get left operand back
shl V0, V1 ; compute left shift
mov DX, V1 ; right operand
pop V0 ; get left operand back
and V0, V1 ; compute and
push DX ; left operand
mov 0, V1 ; right operand
pop V0 ; get left operand back
cmp V0, V1 ; compute inequality check
not
mov LX, V0 ; return value
ret
mov 0, V0 ; fallback return 0
ret
_print_int*_text__int_len__int_x__int_y__int_color:; int print(int* text, int len, int x, int y, int color)
pop V0 ; preserve function return address
pop [$7231] ; param int* text
pop [$7233] ; param int len
pop [$7235] ; param int x
pop [$7237] ; param int y
pop [$7239] ; param int color
push V0 ; restore function return address
mov 0, [$723B] ; int i = 0
_body_9:
push [$723B] ; left operand
mov [$7233], V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz
jmp _end_10 ; if for condition fails, jump to end
push [$7231] ; store index obj
mov [$723B], V1 ; store indexer
pop V0 ; restore index obj
mul V1, 2 ; multiply indexer by 2
add AX, V0 ; add indexer and index obj
mov AX, V0 ; move to general purpose register
mov [V0], [$723D] ; int ch = [V0]
push [$7239] ; arg int ch
push [$7237] ; arg int x
push [$7235] ; left operand
push [$723B] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
mul V0, V1 ; compute multiplication
mov AX, V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; arg int y
push [$723D] ; arg int color
call _drawChar_int_ch__int_x__int_y__int_color; int drawChar(int ch, int x, int y, int color)
push [$723B] ; i++
inc [$723B]
pop V0
jmp _body_9
_end_10:
mov 0, V0 ; fallback return 0
ret
_main: ; int main()
mov 0, [$723F] ; int x = 0
mov 0, [$7241] ; int y = 0
_body_11:
not 1
bz
jmp _end_12 ; if while condition fails, jump to end
mov 0, [$7243] ; int sk = 0
_body_13:
push [$7243] ; left operand
mov 256, V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz
jmp _end_14 ; if for condition fails, jump to end
push [$7243] ; arg int scanCode
call _getKeyState_int_scanCode; int getKeyState(int scanCode)
not V0
bz ; check if condition
jmp _end_15 ; if succeeds, continue, else jump to end
_body_16:
push [$7243] ; arg int scanCode
call _getKeyState_int_scanCode; int getKeyState(int scanCode)
not V0
bz
jmp _end_17 ; if while condition fails, jump to end
jmp _body_16
_end_17:
; Newline pressed
push [$7243] ; left operand
mov 13, V1 ; right operand
pop V0 ; get left operand back
cmp V0, V1 ; compute equality check
not LX
bz ; check if condition
jmp _end_18 ; if succeeds, continue, else jump to end
push [$7241] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; computation results
pop V1 ; get computation results back
mov V1, [$7241] ; store back into left param
mov 0, [$723F] ; [$723F] = 0
jmp _body_13 ; continue
_end_18:
; Backspace pressed
push [$7243] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
cmp V0, V1 ; compute equality check
not LX
bz ; check if condition
jmp _end_19 ; if succeeds, continue, else jump to end
push [$723F] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
sub V0, V1 ; compute subtraction
push AX ; computation results
pop V1 ; get computation results back
mov V1, [$723F] ; store back into left param
push [$723F] ; left operand
mov 0, V1 ; right operand
pop V0 ; get left operand back
lt V0, V1 ; compute less than check
not LX
bz ; check if condition
jmp _end_20 ; if succeeds, continue, else jump to end
mov 0, [$723F] ; [$723F] = 0
_end_20:
mov 32, [$7247]
mov $7247, [$7245] ; int text = $7247
push 1 ; arg int* text
push [$7241] ; arg int len
push [$723F] ; arg int x
push 1 ; arg int y
push [$7245] ; arg int color
call _print_int*_text__int_len__int_x__int_y__int_color; int print(int* text, int len, int x, int y, int color)
jmp _body_13 ; continue
_end_19:
mov [$7243], [$724B]
mov $724B, [$7249] ; int text = $724B
push 1 ; arg int* text
push [$7241] ; arg int len
push [$723F] ; arg int x
push 1 ; arg int y
push [$7249] ; arg int color
call _print_int*_text__int_len__int_x__int_y__int_color; int print(int* text, int len, int x, int y, int color)
push [$723F] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; computation results
pop V1 ; get computation results back
mov V1, [$723F] ; store back into left param
_end_15:
push [$7243] ; i++
inc [$7243]
pop V0
jmp _body_13
_end_14:
push [$723F] ; left operand
mov 128, V1 ; right operand
pop V0 ; get left operand back
cmp V0, V1 ; compute equality check
bz
jmp _end_21
gt V0, V1
_end_21:
not LX
bz ; check if condition
jmp _end_22 ; if succeeds, continue, else jump to end
mov 0, [$723F] ; [$723F] = 0
push [$7241] ; left operand
mov 8, V1 ; right operand
pop V0 ; get left operand back
add V0, V1 ; compute addition
push AX ; computation results
pop V1 ; get computation results back
mov V1, [$7241] ; store back into left param
_end_22:
push [$7241] ; left operand
mov 64, V1 ; right operand
pop V0 ; get left operand back
cmp V0, V1 ; compute equality check
bz
jmp _end_23
gt V0, V1
_end_23:
not LX
bz ; check if condition
jmp _end_24 ; if succeeds, continue, else jump to end
mov 0, [$723F] ; [$723F] = 0
mov 0, [$7241] ; [$7241] = 0
push 8 ; arg int c
call _clear_int_c ; int clear(int c)
_end_24:
jmp _body_11
_end_12:
mov 0, V0 ; fallback return 0
ret
|
