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[/] [pavr/] [trunk/] [test/] [gentest/] [gentest.asm] - Blame information for rev 6

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Line No. Rev Author Line
1 4 doru
; Project
2
;    pAVR (pipelined AVR) is an 8 bit RISC controller, compatible with Atmel's
3
;    AVR core, but about 3x faster in terms of both clock frequency and MIPS.
4
;    The increase in speed comes from a relatively deep pipeline. The original
5
;    AVR core has only two pipeline stages (fetch and execute), while pAVR has
6
;    6 pipeline stages:
7
;       1. PM    (read Program Memory)
8
;       2. INSTR (load Instruction)
9
;       3. RFRD  (decode Instruction and read Register File)
10
;       4. OPS   (load Operands)
11
;       5. ALU   (execute ALU opcode or access Unified Memory)
12
;       6. RFWR  (write Register File)
13
; Version
14
;    0.32
15
; Date
16
;    2002 August 07
17
; Author
18
;    Doru Cuturela, doruu@yahoo.com
19
; License
20
;    This program is free software; you can redistribute it and/or modify
21
;    it under the terms of the GNU General Public License as published by
22
;    the Free Software Foundation; either version 2 of the License, or
23
;    (at your option) any later version.
24
;    This program is distributed in the hope that it will be useful,
25
;    but WITHOUT ANY WARRANTY; without even the implied warranty of
26
;    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
27
;    GNU General Public License for more details.
28
;    You should have received a copy of the GNU General Public License
29
;    along with this program; if not, write to the Free Software
30
;    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
31
 
32
 
33
; About this file...
34
;   This tests all instructions, one by one.
35
 
36
 
37
 
38
.include "m103def.inc"
39
 
40
   ; Initialize some registers.
41
   rjmp start
42
 
43
.org 400
44
start:
45
   LDI R17, 0x90
46
   MOV R0,  R17
47
   MOV R1,  R17
48
   MOV R2,  R17
49
   MOV R4,  R17
50
   MOV R7,  R17
51
   MOV R12, R17
52
   MOV R14, R17
53
   MOV R16, R17
54
   MOV R18, R17
55
   MOV R20, R17
56
   MOV R22, R17
57
   MOV R23, R17
58
   MOV R24, R17
59
   MOV R25, R17
60
   MOV R26, R17
61
   MOV R29, R17
62
   MOV R31, R17
63
   LDI R28, 0xd5
64
   MOV R3,  R28
65
   MOV R5,  R28
66
   MOV R6,  R28
67
   MOV R8,  R28
68
   MOV R9,  R28
69
   MOV R10, R28
70
   MOV R11, R28
71
   MOV R13, R28
72
   MOV R15, R28
73
   MOV R19, R28
74
   MOV R21, R28
75
   MOV R24, R28
76
   MOV R27, R28
77
   MOV R30, R28
78
 
79
   ; These replace original nops, for maintaining absolute addresses used for jumping during the test.
80
   MOV R0, R0
81
   MOV R0, R0
82
   MOV R0, R0
83
   MOV R0, R0
84
   MOV R0, R0
85
   MOV R0, R0
86
 
87
   ADD  R28, R17        ; r28 = d5+90=65 (modulo 256)    SREG=19
88
   ADC  R25, R28        ; r25 = 90+65+1=f6               SREG=14
89
   ADIW R25:R24, 0x35   ; r25:r24 = f6:d5+65=f7:0a       SREG=14
90
 
91
   SUB  R23, R24        ; r23 = 90-a=86                  SREG=34
92
   SUBI R23, 0xf6       ; r23 = 86-f6=90                 SREG=15
93
   SBC  R26, R23        ; r26 = 90-90-1=ff               SREG=35
94
   SBIW R27:R26, 0x2d   ; r27:r26 = d5:ff-2d=d5:d2       SREG=34
95
 
96
   ; Intermediate result: r26=0xd2
97
 
98
   INC r26              ; r26=d2+1=d3     SREG=34
99
   INC r26              ; r26=d3+1=d4     SREG=34
100
   INC r26              ; r26=d4+1=d5     SREG=34
101
   INC r26              ; r26=d5+1=d6     SREG=34
102
   INC r26              ; r26=d6+1=d7     SREG=34
103
   DEC r26              ; r25=d7-1=d6     SREG=34
104
 
105
   AND   r28, r26       ; r28=65&d6=44    SREG=20
106
   ANDI  r28, 0x43      ; r28=44&43=40    SREG=20
107
   OR    r31, r28       ; r31=90|40=d0    SREG=34
108
   ORI   r31, 0x63      ; r31=d0|63=f3    SREG=34
109
   EOR   r10, r31       ; r10=d5^f3=26    SREG=20
110
 
111
   ; Intermediate result: r10=0x26
112
 
113
   COM   r10            ; r10=com(26)=d9              SREG=35
114
   NEG   r10            ; r10=neg(d9)=27, set C       SREG=01
115
   SEZ                  ;                             SREG=03
116
   CP    r10, r11       ; (r10
117
   MOV   r12, r10       ; r12=27
118
   DEC   r12            ; r12=26
119
   SEZ                  ;                             SREG=03
120
   CPC   r10, r12       ; (r10
121
   CPI   r17, 0xab      ; (r17
122
   SWAP  r12            ; r12=swap(r12)=62
123
 
124
   LSR r12              ; r12=lsr(r12)=31             SREG=20
125
   ROR r12              ; r12=ror(r12)=18             SREG=39
126
   ASR r12              ; r12=asr(r12)=c              SREG=20
127
 
128
   ; Intermediate result: r21=0x0c
129
 
130
   ; Multiplications return zero for now. Test timing only.
131
   MUL    r10, r10
132
   MULS   r17, r17
133
   MULSU  r17, r17
134
   FMUL   r17, r17
135
   FMULS  r17, r17
136
   FMULSU r17, r17
137
 
138
   MOV r0, r12             ; r0=r12=c
139
   MOV r1, r11             ; r1=r11=d5
140
   SUB r1, r0              ; r1=r1-r0=c-d5=c9         SREG=34
141
 
142
   ; Intermediate result: r1=0xc9
143
 
144
   OUT  SREG, r1           ; SREG=r1=c9
145
   BCLR 7                  ; SREG(7)=0; SREG=49
146
   BCLR 3                  ; SREG(3)=0; SREG=41
147
   BSET 1                  ; SREG(1)=1; SREG=43
148
   BSET 4                  ; SREG(4)=1; SREG=53
149
 
150
   ; Configure port A as output.
151
   LDI R27,  0xFF
152
   OUT DDRA, R27
153
   IN  R29, SREG           ; R29=SREG=53
154
   ; Send R29 to port A.
155
   OUT PORTA, R29          ; PORTA=R29=53
156
   CBI PORTA, 0            ; PORTA(0)=0; PORTA=52
157
   CBI PORTA, 6            ; PORTA(6)=0; PORTA=12
158
   SBI PORTA, 3            ; PORTA(2)=0; PORTA=1a
159
   SBI PORTA, 5            ; PORTA(7)=0; PORTA=3a
160
   IN  R30, PORTA          ; R30=PORTA=3a
161
   LDI  R31, 0x00          ; R31=0
162
   ; Test if both IN and LDI correctly update the BPU (IN stalls LDI to steal BPU access).
163
   SBIW R31:R30, 0x3e      ; R31:R30=R31:R30-3e=00:3a-3e=ff:fc    SREG=55
164
   BST  R30, 1             ; T=R30(1)=0
165
   BLD  R30, 6             ; R30(6)=T=0; R30=bc
166
   MOV  R31, R1            ; R31=c9
167
   ; Test if both BLD and MOV correctly update the BPU (BLD stalls MOV to steal BPU access).
168
   ADIW R31:R30, 0x2a      ; R31:R30=R31:R30+2a=c9:bc+2a=c9:e6    SREG=14
169
   ; Test if both bytes of the result update the BPU.
170
   ADIW R31:R30, 0x18      ; R31:R30=R31:R30+18=c9:e6+18=c9:fe    SREG=14
171
   MOV R10, R30
172
 
173
   ; Intermediate result: r10=fe
174
 
175
   ; Set up the stack
176
   LDI R25, 0x01
177
   OUT SPH, R25
178
   LDI R26, 0x1c
179
   OUT SPL, R26
180
 
181
   MOVW R23:R22, R31:R30      ; R23:R22=R31:R30=c9:fe
182
   PUSH R22                   ; stack=R22=fe
183
   POP  R21
184
   ADD  R21, R12
185
   ADD  R21, R12
186
   ADD  R21, R12
187
   ADD  R21, R12              ; R21=2e
188
 
189
   STS 0x0130, R21
190
   LDS R22, 0x0130            ; R22=2e
191
   LDI R31, 0x01              ; R31=1
192
   LDI R30, 0x23              ; R30=23
193
   INC R22                    ; R22=R22+1=2e+1=2f
194
   ST  Z, R22                 ; (Z)=(1:23)=R22=2f
195
   LD  R21, Z                 ; R21=(Z)=(1:23)=2f
196
 
197
   LDI R17, 0xf9
198
   MOV R0, R17
199
   INC R0
200
 
201
   ; Load pointer registers for next tests.
202
   LDI R27, 0x01              ; X=0140
203
   LDI R26, 0x40              ;
204
   LDI R29, 0x01              ; Y=0150
205
   LDI R28, 0x50              ;
206
   LDI R31, 0x01              ; Z=0160
207
   LDI R30, 0x60              ;
208
 
209
   ; Load-stores through X pointer
210
   ST  X+, R0
211
   ST  X,  R0
212
   ADIW R27:R26, 0x02
213
   ST  -X, R0
214
   LD  R20, X+
215
   SBIW R27:R26, 0x02
216
   LD  R21, X
217
   LD  R22, -X
218
 
219
   INC R0
220
 
221
   ; Load-stores through Y pointer
222
   ST  Y+, R0
223
   ST  Y,  R0
224
   ADIW R29:R28, 0x02
225
   ST  -Y, R0
226
   LD  R20, Y+
227
   SBIW R29:R28, 0x02
228
   LD  R21, Y
229
   LD  R22, -Y
230
 
231
   STD Y+0x3b, R0
232
   LDD R23, Y+0x3b
233
 
234
   INC R0
235
 
236
   ; Load-stores through Z pointer
237
   ST  Z+, R0
238
   ST  Z,  R0
239
   ADIW R31:R30, 0x02
240
   ST  -Z, R0
241
   LD  R20, Z+
242
   SBIW R31:R30, 0x02
243
   LD  R21, Z
244
   LD  R22, -Z
245
 
246
   STD Z+0x3c, R0
247
   LDD R23, Z+0x3c
248
 
249
   ; Store into Register File.
250
   LDI R20, 0xaa
251
   LDI R21, 0xbb
252
   LDI R27, 00
253
   LDI R26, 21
254
   ST  X+, R20
255
   ; Check if R21=0xaa.
256
 
257
   ; Store into IO File.
258
   LDI R20, 0xcc
259
   LDI R31, 0x00
260
   LDI R30, 0x38
261
   STD Z+3, R20         ; (3b)=R20=cc (note that PORTA has address 0x3b in the Unified Memory, that is 0x1b in IOF)
262
   ; Check if PORTA=0xcc
263
 
264
   ; Test LPM family instructions.
265
   LDI R31, 0x03
266
   LDI R30, 0x74
267
   LPM
268
   LPM R17, Z+
269
   LPM R18, Z+
270
   LPM R19, Z
271
 
272
   LDI R31, 0x03
273
   LDI R30, 0x45
274
   LDI R17, 0x00
275
   OUT RAMPZ, R17
276
   ELPM
277
   ELPM R17, Z+
278
   ELPM R18, Z+
279
   ELPM R19, Z
280
 
281
   ; Jumps ----------------------------
282
 
283
   ; RJMP
284
   RJMP jmp1
285
   LDI R19, 0xaa
286
jmp2:
287
   LDI R19, 0xbb
288
   LDI R19, 0xcc
289
   RJMP jmp3
290
jmp1:
291
   LDI R19, 0xdd
292
   LDI R19, 0xee
293
   RJMP jmp2
294
jmp3:
295
   LDI R19, 0xff              ; R19 = dd, ee, bb, cc, ff
296
 
297
   ; IJMP
298
   LDI R19, 0x11
299
   LDI R31, 0x02
300
   LDI R30, 0x58
301
   IJMP
302
jmp5:                ; 0254
303
   LDI R19, 0x22
304
   LDI R31, 0x02
305
   LDI R30, 0x5c
306
   IJMP
307
jmp4:                ; 0258
308
   LDI R19, 0x33
309
   LDI R31, 0x02
310
   LDI R30, 0x54
311
   IJMP
312
jmp6:                ; 025c
313
   LDI R19, 0x44
314
   LDI R31, 0x02
315
   LDI R30, 0x61
316
   IJMP
317
   LDI R19, 0x55
318
jmp7:                ; 0261
319
   LDI R19, 0x66              ; R19 = 11, 33, 22, 44, 66
320
 
321
   ; EIJMP
322
   LDI R19, 0x77
323
   LDI R17, 0x00
324
   OUT RAMPZ, R17
325
   LDI R31, 0x02
326
   LDI R30, 0x6a
327
   EIJMP
328
jmp9:                ; 0268
329
   LDI R19, 0x88
330
   RJMP jmp10
331
jmp8:                ; 026a
332
   LDI R19, 0x99
333
   LDI R31, 0x02
334
   LDI R30, 0x68
335
   EIJMP
336
jmp10:               ; 026e
337
   LDI R19, 0xaa              ; R19 = 77, 99, 88, aa
338
 
339
   ; JMP
340
   LDI R19, 0x10
341
   JMP jmp11
342
   LDI R19, 0x11
343
jmp12:
344
   LDI R19, 0x12
345
   ; Stress the JMP a little bit.
346
   INC R11
347
   INC R10
348
   LDI R17, 0x09
349
   LDI R20, 0xa2
350
   LDI R29, 0x00
351
   LDI R28, 20
352
   ST Y, R17      ; R20=9
353
   LD R21, Y      ; R21=9
354
   JMP jmp13
355
   LDI R19, 0x13
356
   LDI R19, 0x14
357
jmp11:
358
   LDI R19, 0x15
359
   ; Stress the JMP a little bit.
360
   INC R11
361
   INC R10
362
   MOVW R11:R10, R25:R24
363
   JMP jmp12
364
jmp13:
365
   LDI R19, 0x16              ; R19 = 10, 15, 12, 16
366
 
367
   ; Skips ----------------------------
368
 
369
   ; CPSE
370
   LDI R20, 0x10
371
   LDI R21, 0x10
372
   LDI R22, 0x11
373
   LDI R19, 0x21              ; R19 = 21
374
   CPSE R20, R21
375
   LDI R19, 0x22
376
   LDI R19, 0x23              ; R19 = 23
377
   CPSE R20, R22
378
   LDI R19, 0x24              ; R19 = 24
379
   ; Stress CPSE a little bit.
380
   LDI R31, 0x00
381
   LDI R30, 19
382
   CPSE R20, R21
383
   ST Z+, R0
384
   ST Z+, R24                 ; R19 = a
385
   DEC R19                    ; R19 = 9
386
   CPSE R20, R21
387
   LD R6, -Z
388
   LD R7, -Z                  ; R7 = 9
389
   CPSE R20, R21
390
   MOVW R19:R18, R5:R4
391
   LDI R19, 0x25              ; R19 = 25
392
   CPSE R20, R21
393
   JMP jmp13
394
   LDI R19, 0x26              ; R19 = 26
395
   CPSE R20, R21
396
   STD Z+0, R23
397
   STD Z+0, R25               ; R19 = 1
398
 
399
   ; SBRC
400
   LDI R20, 0x41              ; R20 = 41
401
   SBRC R20, 6
402
   LDI R19, 0x30              ; R19 = 30
403
   SBRC R20, 7
404
   LDI R19, 0x28
405
   LDI R19, 0x31              ; R19 = 31
406
   SBRC R20, 7
407
   LD R18, Z
408
   SBRC R20, 7
409
   STD Z+0, R20
410
   LDI R19, 0x32              ; R19 = 32
411
   SBRC R20, 7
412
   JMP jmp13
413
   LDI R19, 0x33              ; R19 = 33
414
   SBRC R20, 7
415
   MOVW R19:R18, R1:R0
416
   LDI R19, 0x3d              ; R19 = 3d
417
 
418
   ; SBRS
419
   LDI R20, 0x92              ; R20 = 92
420
   SBRS R20, 6
421
   LDI R19, 0x40              ; R19 = 40
422
   SBRS R20, 7
423
   LDI R19, 0x28
424
   LDI R19, 0x41              ; R19 = 41
425
   SBRS R20, 7
426
   LD R18, Z
427
   SBRS R20, 7
428
   STD Z+0, R20
429
   LDI R19, 0x42              ; R19 = 42
430
   SBRS R20, 7
431
   JMP jmp13
432
   LDI R19, 0x43              ; R19 = 43
433
   SBRS R20, 7
434
   MOVW R19:R18, R1:R0
435
   LDI R19, 0x44              ; R19 = 44
436
 
437
   ; SBIC
438
   LDI R20, 0x41              ; R20 = 41
439
   OUT PORTA, R20
440
   SBIC PORTA, 6
441
   LDI R19, 0x50              ; R19 = 50
442
   SBIC PORTA, 7
443
   LDI R19, 0x28
444
   LDI R19, 0x51              ; R19 = 51
445
   SBIC PORTA, 7
446
   LD R18, Z
447
   SBIC PORTA, 7
448
   STD Z+0, R20
449
   LDI R19, 0x52              ; R19 = 52
450
   SBIC PORTA, 7
451
   JMP jmp13
452
   LDI R19, 0x53              ; R19 = 53
453
   SBIC PORTA, 7
454
   MOVW R19:R18, R1:R0
455
   LDI R19, 0x54              ; R19 = 54
456
 
457
   ; SBIS
458
   LDI R20, 0x92              ; R20 = 92
459
   OUT PORTA, R20
460
   SBIS PORTA, 6
461
   LDI R19, 0x60              ; R19 = 60
462
   SBIS PORTA, 7
463
   LDI R19, 0x28
464
   LDI R19, 0x61              ; R19 = 61
465
   SBIS PORTA, 7
466
   LD R18, Z
467
   SBIS PORTA, 7
468
   STD Z+0, R20
469
   LDI R19, 0x62              ; R19 = 62
470
   SBIS PORTA, 7
471
   JMP jmp13
472
   LDI R19, 0x63              ; R19 = 63
473
   SBIS PORTA, 7
474
   MOVW R19:R18, R1:R0
475
   LDI R19, 0x64              ; R19 = 64
476
 
477
   ; Branches -------------------------
478
 
479
   LDI R31, 0x01
480
   LDI R30, 0x4e
481
   LDI R16, 0x45
482
   MOV R3, R16
483
   LDI R16, 0x03
484
   MOV R4, R16
485
 
486
   ; BRBC
487
   LDI R19, 0x70
488
   OUT SREG, R4
489
   STD Z+5, R3
490
   LDD R19, Z+5
491
   BRBC 2, jmp14
492
   LDI R19, 0x71
493
jmp15:
494
   LDI R19, 0x72
495
   BRBC 1, jmp14
496
   LDI R19, 0x73
497
   rjmp jmp16
498
jmp14:
499
   INC R3
500
   OUT SREG, R4
501
   STD Z+5, R3
502
   LDD R19, Z+5
503
   LDI R19, 0x74
504
   BRBC 3,  jmp15
505
   LDI R19, 0x75
506
jmp16:
507
   LDI R19, 0x76              ; R19 = 70, 45, 46, 74, 72, 73, 76
508
 
509
   ; BRBS
510
   LDI R19, 0x80
511
   OUT SREG, R4
512
   STD Z+5, R3
513
   LDD R19, Z+5
514
   BRBS 1, jmp17
515
   LDI R19, 0x81
516
jmp18:
517
   LDI R19, 0x82
518
   BRBS 4, jmp14
519
   LDI R19, 0x83
520
   rjmp jmp19
521
jmp17:
522
   INC R3
523
   OUT SREG, R4
524
   STD Z+5, R3
525
   LDD R19, Z+5
526
   LDI R19, 0x84
527
   BRBS 1,  jmp18
528
   LDI R19, 0x85
529
jmp19:
530
   LDI R19, 0x86              ; R19 = 80, 46, 47, 84, 82, 83, 86
531
 
532
 
533
   ; Calls and returns ----------------
534
   RCALL jmp20
535
   LDI R19, 0xa0
536
   CALL jmp21
537
   JMP jmp26
538
 
539
jmp20:
540
   LDI R19, 0xa1
541
   STD Z+5, R3
542
   RET
543
   STD Z+5, R3
544
 
545
jmp21:
546
   LDI R19, 0xa3
547
   RET
548
   JMP jmp21
549
 
550
jmp22:
551
   LDI R19, 0xa4
552
   ADIW R25:R24, 0x35
553
   RET
554
   BRBS 4, jmp14
555
 
556
jmp23:
557
   LDI R19, 0xa5
558
   CLR R0
559
   OUT SREG, R0
560
   BRBS 4, jmp23
561
   RET
562
   BRBS 4, jmp23
563
 
564
jmp24:
565
   LDI R19, 0xa6
566
   JMP jmp24bis
567
jmp24bis:
568
   RET
569
   JMP jmp24
570
 
571
jmp25:
572
   LDI R19, 0xa7
573
   CLR R17
574
   ELPM R17, Z+
575
   RET
576
   CPSE R20, R21
577
 
578
jmp26:
579
   LDI R19, 0xa8           ; R19 = a1, a0, a3, a8
580
 
581
   NOP
582
   NOP
583
   NOP
584
   NOP
585
   NOP
586
   NOP
587
   NOP
588
   NOP
589
   NOP
590
   NOP
591
forever:
592
   RJMP forever

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