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Line No.	Rev	Author	Line
1	15	rhoads	`##################################################################`
2			`# TITLE: Opcode Tester`
3			`# AUTHOR: Steve Rhoads (rhoadss@yahoo.com)`
4			`# DATE CREATED: 1/10/02`
5			`# FILENAME: opcodes.asm`
6	43	rhoads	`# PROJECT: Plasma CPU core`
7	15	rhoads	`# COPYRIGHT: Software placed into the public domain by the author.`
8			`# Software 'as is' without warranty. Author liable for nothing.`
9			`# DESCRIPTION:`
10			`# This assembly file tests all of the opcodes supported by the`
11	43	rhoads	`# Plasma core.`
12	148	rhoads	`# This test assumes that address 0x20000000 is the UART write register`
13	15	rhoads	`# Successful tests will print out "A" or "AB" or "ABC" or ....`
14			`# Missing letters or letters out of order indicate a failure.`
15			`##################################################################`
16			`.text`
17			`.align 2`
18			`.globl entry`
19			`.ent entry`
20			`entry:`
21			`.set noreorder`
22
23	29	rhoads	`#These four instructions must be the first instructions`
24			`#convert.exe will correctly initialize $gp`
25			`lui $gp,0`
26			`ori $gp,$gp,0`
27			`#convert.exe will set $4=.sbss_start $5=.bss_end`
28	111	rhoads	`lui $4,0`
29			`ori $4,$4,0`
30			`lui $5,0`
31			`ori $5,$5,0`
32			`lui $sp,0`
33			`ori $sp,$sp,0xfff0`
34	29	rhoads
35	194	rhoads	`b StartTest`
36			`nop #nops required to place ISR at 0x3c`
37			`nop`
38
39			`OS_AsmPatchValue:`
40			`#Code to place at address 0x3c`
41			`lui $26, 0x1000`
42			`ori $26, $26, 0x3c`
43			`jr $26`
44			`nop`
45
46			`InterruptVector: #Address=0x3c`
47			`mfc0 $26,$14 #C0_EPC=14 (Exception PC)`
48			`jr $26`
49			`add $4,$4,5`
50
51			`StartTest:`
52	23	rhoads	`mtc0 $0,$12 #disable interrupts`
53	148	rhoads	`lui $20,0x2000 #serial port write address`
54	15	rhoads	`ori $21,$0,'\n' # letter`
55			`ori $22,$0,'X' #'X' letter`
56	68	rhoads	`ori $23,$0,'\r'`
57	100	rhoads	`ori $24,$0,0x0f80 #temp memory`
58	15	rhoads
59	194	rhoads	`sb $23,0($20)`
60			`sb $21,0($20)`
61			`sb $23,0($20)`
62			`sb $21,0($20)`
63			`sb $23,0($20)`
64			`sb $21,0($20)`
65			`sb $23,0($20)`
66			`sb $21,0($20)`
67
68			`#Patch interrupt vector to 0x1000003c`
69			`la $5, OS_AsmPatchValue`
70			`sub $6,$5,0x1000`
71			`blez $6,NoPatch`
72
73			`lw $6, 0($5)`
74			`sw $6, 0x3c($0)`
75			`lw $6, 4($5)`
76			`sw $6, 0x40($0)`
77			`lw $6, 8($5)`
78			`sw $6, 0x44($0)`
79			`lw $6, 12($5)`
80			`sw $6, 0x48($0)`
81			`NoPatch:`
82
83	15	rhoads	`######################################`
84			`#Arithmetic Instructions`
85			`######################################`
86	194	rhoads	`ArthmeticTest:`
87	15	rhoads	`ori $2,$0,'A'`
88			`sb $2,0($20)`
89			`ori $2,$0,'r'`
90			`sb $2,0($20)`
91			`ori $2,$0,'i'`
92			`sb $2,0($20)`
93			`ori $2,$0,'t'`
94			`sb $2,0($20)`
95			`ori $2,$0,'h'`
96			`sb $2,0($20)`
97	68	rhoads	`sb $23,0($20)`
98	15	rhoads	`sb $21,0($20)`
99
100	23	rhoads	`#a: ADD`
101			`ori $2,$0,'a'`
102			`sb $2,0($20)`
103	15	rhoads	`ori $3,$0,5`
104			`ori $4,$0,60`
105			`add $2,$3,$4`
106	23	rhoads	`sb $2,0($20) #A`
107	68	rhoads	`sb $23,0($20)`
108	15	rhoads	`sb $21,0($20)`
109
110	23	rhoads	`#b: ADDI`
111			`ori $2,$0,'b'`
112			`sb $2,0($20)`
113	15	rhoads	`ori $4,$0,60`
114			`addi $2,$4,5`
115	23	rhoads	`sb $2,0($20) #A`
116	68	rhoads	`sb $23,0($20)`
117	15	rhoads	`sb $21,0($20)`
118
119	23	rhoads	`#c: ADDIU`
120			`ori $2,$0,'c'`
121			`sb $2,0($20)`
122	15	rhoads	`ori $4,$0,50`
123			`addiu $5,$4,15`
124	23	rhoads	`sb $5,0($20) #A`
125	68	rhoads	`sb $23,0($20)`
126	15	rhoads	`sb $21,0($20)`
127
128	23	rhoads	`#d: ADDU`
129			`ori $2,$0,'d'`
130			`sb $2,0($20)`
131	15	rhoads	`ori $3,$0,5`
132			`ori $4,$0,60`
133			`add $2,$3,$4`
134	23	rhoads	`sb $2,0($20) #A`
135	68	rhoads	`sb $23,0($20)`
136	15	rhoads	`sb $21,0($20)`
137
138	23	rhoads	`#e: DIV`
139			`ori $2,$0,'e'`
140			`sb $2,0($20)`
141			`ori $2,$0,65*117+41`
142			`ori $3,$0,117`
143	15	rhoads	`div $2,$3`
144			`nop`
145			`mflo $4`
146	23	rhoads	`sb $4,0($20) #A`
147			`mfhi $4`
148			`addi $4,$4,66-41`
149			`sb $4,0($20) #B`
150			`li $2,-67*19`
151	15	rhoads	`ori $3,$0,19`
152			`div $2,$3`
153			`nop`
154			`mflo $4`
155			`sub $4,$0,$4`
156	23	rhoads	`sb $4,0($20) #C`
157			`ori $2,$0,68*23`
158	15	rhoads	`li $3,-23`
159			`div $2,$3`
160			`nop`
161			`mflo $4`
162			`sub $4,$0,$4`
163	23	rhoads	`sb $4,0($20) #D`
164			`li $2,-69*13`
165	15	rhoads	`li $3,-13`
166			`div $2,$3`
167			`mflo $4`
168	23	rhoads	`sb $4,0($20) #E`
169	68	rhoads	`sb $23,0($20)`
170	15	rhoads	`sb $21,0($20)`
171
172	23	rhoads	`#f: DIVU`
173			`ori $2,$0,'f'`
174			`sb $2,0($20)`
175	15	rhoads	`ori $2,$0,65*13`
176			`ori $3,$0,13`
177	23	rhoads	`divu $2,$3`
178	15	rhoads	`nop`
179			`mflo $4`
180	23	rhoads	`sb $4,0($20) #A`
181	68	rhoads	`sb $23,0($20)`
182	15	rhoads	`sb $21,0($20)`
183
184	23	rhoads	`#g: MULT`
185			`ori $2,$0,'g'`
186			`sb $2,0($20)`
187	15	rhoads	`ori $2,$0,5`
188			`ori $3,$0,13`
189			`mult $2,$3`
190			`nop`
191			`mflo $4`
192	23	rhoads	`sb $4,0($20) #A`
193	15	rhoads	`li $2,-5`
194			`ori $3,$0,13`
195			`mult $2,$3`
196	100	rhoads	`mfhi $5`
197	15	rhoads	`mflo $4`
198			`sub $4,$0,$4`
199	100	rhoads	`addu $4,$4,$5`
200			`addi $4,$4,2`
201	23	rhoads	`sb $4,0($20) #B`
202	15	rhoads	`ori $2,$0,5`
203			`li $3,-13`
204			`mult $2,$3`
205	100	rhoads	`mfhi $5`
206	15	rhoads	`mflo $4`
207			`sub $4,$0,$4`
208	100	rhoads	`addu $4,$4,$5`
209			`addi $4,$4,3`
210	23	rhoads	`sb $4,0($20) #C`
211	15	rhoads	`li $2,-5`
212			`li $3,-13`
213			`mult $2,$3`
214	100	rhoads	`mfhi $5`
215	15	rhoads	`mflo $4`
216	100	rhoads	`addu $4,$4,$5`
217	15	rhoads	`addi $4,$4,3`
218	23	rhoads	`sb $4,0($20) #D`
219	44	rhoads	`lui $4,0xfe98`
220			`ori $4,$4,0x62e5`
221			`lui $5,0x6`
222			`ori $5,0x8db8`
223			`mult $4,$5`
224			`mfhi $6`
225			`addiu $7,$6,2356+1+'E' #E`
226			`sb $7,0($20)`
227	68	rhoads	`sb $23,0($20)`
228	15	rhoads	`sb $21,0($20)`
229
230	23	rhoads	`#h: MULTU`
231			`ori $2,$0,'h'`
232			`sb $2,0($20)`
233	15	rhoads	`ori $2,$0,5`
234			`ori $3,$0,13`
235	23	rhoads	`multu $2,$3`
236	15	rhoads	`nop`
237			`mflo $4`
238	23	rhoads	`sb $4,0($20) #A`
239	68	rhoads	`sb $23,0($20)`
240	15	rhoads	`sb $21,0($20)`
241
242	23	rhoads	`#i: SLT`
243			`ori $2,$0,'i'`
244			`sb $2,0($20)`
245	15	rhoads	`ori $2,$0,10`
246			`ori $3,$0,12`
247			`slt $4,$2,$3`
248			`addi $5,$4,64`
249	23	rhoads	`sb $5,0($20) #A`
250	15	rhoads	`slt $4,$3,$2`
251			`addi $5,$4,66`
252	23	rhoads	`sb $5,0($20) #B`
253	15	rhoads	`li $2,0xfffffff0`
254			`slt $4,$2,$3`
255			`addi $5,$4,66`
256	23	rhoads	`sb $5,0($20) #C`
257	15	rhoads	`slt $4,$3,$2`
258			`addi $5,$4,68`
259	23	rhoads	`sb $5,0($20) #D`
260	15	rhoads	`li $3,0xffffffff`
261			`slt $4,$2,$3`
262			`addi $5,$4,68`
263	23	rhoads	`sb $5,0($20) #E`
264	15	rhoads	`slt $4,$3,$2`
265			`addi $5,$4,70`
266	23	rhoads	`sb $5,0($20) #F`
267	68	rhoads	`sb $23,0($20)`
268	15	rhoads	`sb $21,0($20)`
269
270	23	rhoads	`#j: SLTI`
271			`ori $2,$0,'j'`
272			`sb $2,0($20)`
273	15	rhoads	`ori $2,$0,10`
274			`slti $4,$2,12`
275			`addi $5,$4,64`
276	23	rhoads	`sb $5,0($20) #A`
277	15	rhoads	`slti $4,$2,8`
278			`addi $5,$4,66`
279	23	rhoads	`sb $5,0($20) #B`
280	68	rhoads	`sb $23,0($20)`
281	15	rhoads	`sb $21,0($20)`
282
283	23	rhoads	`#k: SLTIU`
284			`ori $2,$0,'k'`
285			`sb $2,0($20)`
286	15	rhoads	`ori $2,$0,10`
287			`sltiu $4,$2,12`
288			`addi $5,$4,64`
289	23	rhoads	`sb $5,0($20) #A`
290	15	rhoads	`sltiu $4,$2,8`
291			`addi $5,$4,66`
292	23	rhoads	`sb $5,0($20) #B`
293	68	rhoads	`sb $23,0($20)`
294	15	rhoads	`sb $21,0($20)`
295
296	23	rhoads	`#l: SLTU`
297			`ori $2,$0,'l'`
298			`sb $2,0($20)`
299	15	rhoads	`ori $2,$0,10`
300			`ori $3,$0,12`
301			`slt $4,$2,$3`
302			`addi $5,$4,64`
303	23	rhoads	`sb $5,0($20) #A`
304	15	rhoads	`slt $4,$3,$2`
305			`addi $5,$4,66`
306	23	rhoads	`sb $5,0($20) #B`
307	68	rhoads	`sb $23,0($20)`
308	15	rhoads	`sb $21,0($20)`
309
310	23	rhoads	`#m: SUB`
311			`ori $2,$0,'m'`
312			`sb $2,0($20)`
313	15	rhoads	`ori $3,$0,70`
314			`ori $4,$0,5`
315			`sub $2,$3,$4`
316	23	rhoads	`sb $2,0($20) #A`
317	68	rhoads	`sb $23,0($20)`
318	15	rhoads	`sb $21,0($20)`
319
320	23	rhoads	`#n: SUBU`
321			`ori $2,$0,'n'`
322			`sb $2,0($20)`
323	15	rhoads	`ori $3,$0,70`
324			`ori $4,$0,5`
325			`sub $2,$3,$4`
326	23	rhoads	`sb $2,0($20) #A`
327	68	rhoads	`sb $23,0($20)`
328	15	rhoads	`sb $21,0($20)`
329
330			`######################################`
331			`#Branch and Jump Instructions`
332			`######################################`
333	194	rhoads	`BranchTest:`
334	15	rhoads	`ori $2,$0,'B'`
335			`sb $2,0($20)`
336			`ori $2,$0,'r'`
337			`sb $2,0($20)`
338			`ori $2,$0,'a'`
339			`sb $2,0($20)`
340			`ori $2,$0,'n'`
341			`sb $2,0($20)`
342			`ori $2,$0,'c'`
343			`sb $2,0($20)`
344			`ori $2,$0,'h'`
345			`sb $2,0($20)`
346	68	rhoads	`sb $23,0($20)`
347	15	rhoads	`sb $21,0($20)`
348
349	23	rhoads	`#a: B`
350			`ori $2,$0,'a'`
351			`sb $2,0($20)`
352	15	rhoads	`ori $10,$0,'A'`
353			`ori $11,$0,'B'`
354			`b $B1`
355			`sb $10,0($20)`
356			`sb $22,0($20)`
357			`$B1:`
358			`sb $11,0($20)`
359	68	rhoads	`sb $23,0($20)`
360	15	rhoads	`sb $21,0($20)`
361
362	23	rhoads	`#b: BAL`
363			`ori $2,$0,'b'`
364			`sb $2,0($20)`
365	15	rhoads	`ori $10,$0,'A'`
366			`ori $11,$0,'B'`
367			`ori $12,$0,'C'`
368			`ori $13,$0,'D'`
369			`ori $14,$0,'E'`
370			`ori $15,$0,'X'`
371			`bal $BAL1`
372			`sb $10,0($20)`
373			`sb $13,0($20)`
374			`b $BAL2`
375			`sb $14,0($20)`
376			`sb $15,0($20)`
377			`$BAL1:`
378			`sb $11,0($20)`
379			`jr $31`
380			`sb $12,0($20)`
381			`sb $22,0($20)`
382			`$BAL2:`
383	68	rhoads	`sb $23,0($20)`
384	15	rhoads	`sb $21,0($20)`
385
386	23	rhoads	`#c: BEQ`
387			`ori $2,$0,'c'`
388			`sb $2,0($20)`
389	15	rhoads	`ori $10,$0,'A'`
390			`ori $11,$0,'B'`
391			`ori $12,$0,'C'`
392			`ori $13,$0,'D'`
393			`ori $2,$0,100`
394			`ori $3,$0,123`
395			`ori $4,$0,123`
396			`beq $2,$3,$BEQ1`
397			`sb $10,0($20)`
398			`sb $11,0($20)`
399			`beq $3,$4,$BEQ1`
400			`sb $12,0($20)`
401			`sb $22,0($20)`
402			`$BEQ1:`
403			`sb $13,0($20)`
404	68	rhoads	`sb $23,0($20)`
405	15	rhoads	`sb $21,0($20)`
406
407	23	rhoads	`#d: BGEZ`
408			`ori $2,$0,'d'`
409			`sb $2,0($20)`
410	15	rhoads	`ori $10,$0,'A'`
411			`ori $11,$0,'B'`
412			`ori $12,$0,'C'`
413			`ori $13,$0,'D'`
414			`or $15,$0,'X'`
415			`ori $2,$0,100`
416			`li $3,0xffff1234`
417			`ori $4,$0,123`
418			`bgez $3,$BGEZ1`
419			`sb $10,0($20)`
420			`sb $11,0($20)`
421			`bgez $2,$BGEZ1`
422			`sb $12,0($20)`
423			`sb $22,0($20)`
424			`$BGEZ1:`
425			`bgez $0,$BGEZ2`
426			`nop`
427			`sb $15,0($20)`
428			`$BGEZ2:`
429			`sb $13,0($20)`
430	68	rhoads	`sb $23,0($20)`
431	15	rhoads	`sb $21,0($20)`
432
433	23	rhoads	`#e: BGEZAL`
434			`ori $2,$0,'e'`
435			`sb $2,0($20)`
436	15	rhoads	`ori $10,$0,'A'`
437			`ori $11,$0,'B'`
438			`ori $12,$0,'C'`
439			`ori $13,$0,'D'`
440			`ori $14,$0,'E'`
441			`ori $15,$0,'X'`
442			`li $3,0xffff1234`
443			`bgezal $3,$BGEZAL1`
444			`nop`
445			`sb $10,0($20)`
446			`bgezal $0,$BGEZAL1`
447			`nop`
448			`sb $13,0($20)`
449			`b $BGEZAL2`
450			`sb $14,0($20)`
451			`sb $15,0($20)`
452			`$BGEZAL1:`
453			`sb $11,0($20)`
454			`jr $31`
455			`sb $12,0($20)`
456			`sb $22,0($20)`
457			`$BGEZAL2:`
458	68	rhoads	`sb $23,0($20)`
459	15	rhoads	`sb $21,0($20)`
460
461	23	rhoads	`#f: BGTZ`
462			`ori $2,$0,'f'`
463			`sb $2,0($20)`
464	15	rhoads	`ori $10,$0,'A'`
465			`ori $11,$0,'B'`
466			`ori $12,$0,'C'`
467			`ori $13,$0,'D'`
468			`ori $2,$0,100`
469			`li $3,0xffff1234`
470			`bgtz $3,$BGTZ1`
471			`sb $10,0($20)`
472			`sb $11,0($20)`
473			`bgtz $2,$BGTZ1`
474			`sb $12,0($20)`
475			`sb $22,0($20)`
476			`$BGTZ1:`
477			`sb $13,0($20)`
478	68	rhoads	`sb $23,0($20)`
479	15	rhoads	`sb $21,0($20)`
480
481	23	rhoads	`#g: BLEZ`
482			`ori $2,$0,'g'`
483			`sb $2,0($20)`
484	15	rhoads	`ori $10,$0,'A'`
485			`ori $11,$0,'B'`
486			`ori $12,$0,'C'`
487			`ori $13,$0,'D'`
488			`ori $2,$0,100`
489			`li $3,0xffff1234`
490			`blez $2,$BLEZ1`
491			`sb $10,0($20)`
492			`sb $11,0($20)`
493			`blez $3,$BLEZ1`
494			`sb $12,0($20)`
495			`sb $22,0($20)`
496			`$BLEZ1:`
497			`blez $0,$BLEZ2`
498			`nop`
499			`sb $22,0($20)`
500			`$BLEZ2:`
501			`sb $13,0($20)`
502	68	rhoads	`sb $23,0($20)`
503	15	rhoads	`sb $21,0($20)`
504
505	23	rhoads	`#h: BLTZ`
506			`ori $2,$0,'h'`
507			`sb $2,0($20)`
508	15	rhoads	`ori $10,$0,'A'`
509			`ori $11,$0,'B'`
510			`ori $12,$0,'C'`
511			`ori $13,$0,'D'`
512			`ori $14,$0,'E'`
513			`ori $2,$0,100`
514			`li $3,0xffff1234`
515			`ori $4,$0,0`
516			`bltz $2,$BLTZ1`
517			`sb $10,0($20)`
518			`sb $11,0($20)`
519			`bltz $3,$BLTZ1`
520			`sb $12,0($20)`
521			`sb $22,0($20)`
522			`$BLTZ1:`
523			`bltz $4,$BLTZ2`
524			`nop`
525			`sb $13,0($20)`
526			`$BLTZ2:`
527			`sb $14,0($20)`
528	68	rhoads	`sb $23,0($20)`
529	15	rhoads	`sb $21,0($20)`
530
531	23	rhoads	`#i: BLTZAL`
532			`ori $2,$0,'i'`
533			`sb $2,0($20)`
534	15	rhoads	`ori $10,$0,'A'`
535			`ori $11,$0,'B'`
536			`ori $12,$0,'C'`
537			`ori $13,$0,'D'`
538			`ori $14,$0,'E'`
539			`ori $15,$0,'X'`
540			`li $3,0xffff1234`
541			`bltzal $0,$BLTZAL1`
542			`nop`
543			`sb $10,0($20)`
544			`bltzal $3,$BLTZAL1`
545			`nop`
546			`sb $13,0($20)`
547			`b $BLTZAL2`
548			`sb $14,0($20)`
549			`sb $15,0($20)`
550			`$BLTZAL1:`
551			`sb $11,0($20)`
552			`jr $31`
553			`sb $12,0($20)`
554			`sb $22,0($20)`
555			`$BLTZAL2:`
556	68	rhoads	`sb $23,0($20)`
557	15	rhoads	`sb $21,0($20)`
558
559	23	rhoads	`#j: BNE`
560			`ori $2,$0,'j'`
561			`sb $2,0($20)`
562	15	rhoads	`ori $10,$0,'A'`
563			`ori $11,$0,'B'`
564			`ori $12,$0,'C'`
565			`ori $13,$0,'D'`
566			`ori $2,$0,100`
567			`ori $3,$0,123`
568			`ori $4,$0,123`
569			`bne $3,$4,$BNE1`
570			`sb $10,0($20)`
571			`sb $11,0($20)`
572			`bne $2,$3,$BNE1`
573			`sb $12,0($20)`
574			`sb $22,0($20)`
575			`$BNE1:`
576			`sb $13,0($20)`
577	68	rhoads	`sb $23,0($20)`
578	15	rhoads	`sb $21,0($20)`
579
580	23	rhoads	`#k: J`
581			`ori $2,$0,'k'`
582			`sb $2,0($20)`
583	15	rhoads	`ori $10,$0,'A'`
584			`ori $11,$0,'B'`
585			`ori $15,$0,'X'`
586			`j $J1`
587			`sb $10,0($20)`
588			`sb $15,0($20)`
589			`$J1:`
590			`sb $11,0($20)`
591	68	rhoads	`sb $23,0($20)`
592	15	rhoads	`sb $21,0($20)`
593
594	23	rhoads	`#l: JAL`
595			`ori $2,$0,'l'`
596			`sb $2,0($20)`
597	15	rhoads	`ori $10,$0,'A'`
598			`ori $11,$0,'B'`
599			`ori $12,$0,'C'`
600			`ori $13,$0,'D'`
601			`ori $14,$0,'E'`
602			`ori $15,$0,'X'`
603			`jal $JAL1`
604			`sb $10,0($20)`
605			`sb $13,0($20)`
606			`b $JAL2`
607			`sb $14,0($20)`
608			`sb $15,0($20)`
609			`$JAL1:`
610			`sb $11,0($20)`
611			`jr $31`
612			`sb $12,0($20)`
613			`sb $22,0($20)`
614			`$JAL2:`
615	68	rhoads	`sb $23,0($20)`
616	15	rhoads	`sb $21,0($20)`
617
618	23	rhoads	`#m: JALR`
619			`ori $2,$0,'m'`
620			`sb $2,0($20)`
621	15	rhoads	`ori $10,$0,'A'`
622			`ori $11,$0,'B'`
623			`ori $12,$0,'C'`
624			`ori $13,$0,'D'`
625			`ori $14,$0,'E'`
626			`ori $15,$0,'X'`
627			`la $3,$JALR1`
628			`jalr $3`
629			`sb $10,0($20)`
630			`sb $13,0($20)`
631			`b $JALR2`
632			`sb $14,0($20)`
633			`sb $15,0($20)`
634			`$JALR1:`
635			`sb $11,0($20)`
636			`jr $31`
637			`sb $12,0($20)`
638			`sb $22,0($20)`
639			`$JALR2:`
640	68	rhoads	`sb $23,0($20)`
641	15	rhoads	`sb $21,0($20)`
642
643	23	rhoads	`#n: JR`
644			`ori $2,$0,'n'`
645			`sb $2,0($20)`
646	15	rhoads	`ori $10,$0,'A'`
647			`ori $11,$0,'B'`
648			`ori $15,$0,'X'`
649			`la $3,$JR1`
650			`jr $3`
651			`sb $10,0($20)`
652			`sb $15,0($20)`
653			`$JR1:`
654			`sb $11,0($20)`
655	68	rhoads	`sb $23,0($20)`
656	15	rhoads	`sb $21,0($20)`
657
658	23	rhoads	`#o: NOP`
659			`ori $2,$0,'o'`
660			`sb $2,0($20)`
661	15	rhoads	`ori $2,$0,65`
662			`nop`
663			`sb $2,0($20)`
664	68	rhoads	`sb $23,0($20)`
665	15	rhoads	`sb $21,0($20)`
666
667	194	rhoads	`# b LoadTest`
668	148	rhoads
669	194	rhoads	`BreakTest:`
670			`#p: BREAK`
671			`ori $2,$0,'p'`
672			`sb $2,0($20)`
673			`ori $2,$0,'z'`
674			`ori $4,$0,59`
675			`break 0`
676			`addi $4,$4,1`
677			`sb $4,0($20)`
678			`sb $23,0($20)`
679			`sb $21,0($20)`
680
681			`#q: SYSCALL`
682			`ori $2,$0,'q'`
683			`sb $2,0($20)`
684			`ori $4,$0,61`
685			`syscall 0`
686			`addi $4,$4,-1`
687			`sb $4,0($20)`
688			`sb $23,0($20)`
689			`sb $21,0($20)`
690
691
692	15	rhoads	`######################################`
693			`#Load, Store, and Memory Control Instructions`
694			`######################################`
695	194	rhoads	`LoadTest:`
696	15	rhoads	`ori $2,$0,'L'`
697			`sb $2,0($20)`
698			`ori $2,$0,'o'`
699			`sb $2,0($20)`
700			`ori $2,$0,'a'`
701			`sb $2,0($20)`
702			`ori $2,$0,'d'`
703			`sb $2,0($20)`
704	68	rhoads	`sb $23,0($20)`
705	15	rhoads	`sb $21,0($20)`
706
707	23	rhoads	`#a: LB`
708			`ori $2,$0,'a'`
709			`sb $2,0($20)`
710	68	rhoads	`or $2,$0,$24`
711	148	rhoads	`li $3,0x414243fc`
712	15	rhoads	`sw $3,16($2)`
713			`lb $4,16($2)`
714			`sb $4,0($20)`
715			`lb $4,17($2)`
716			`sb $4,0($20)`
717			`lb $4,18($2)`
718			`sb $4,0($20)`
719			`lb $2,19($2)`
720	148	rhoads	`sra $3,$2,8`
721			`addi $3,$3,0x45`
722			`sb $3,0($20)`
723			`addi $2,$2,0x49`
724	15	rhoads	`sb $2,0($20)`
725	68	rhoads	`sb $23,0($20)`
726	15	rhoads	`sb $21,0($20)`
727
728	23	rhoads	`#b: LBU`
729			`ori $2,$0,'b'`
730			`sb $2,0($20)`
731	68	rhoads	`or $2,$0,$24`
732	15	rhoads	`li $3,0x41424344`
733			`sw $3,16($2)`
734			`lb $4,16($2)`
735			`sb $4,0($20)`
736			`lb $4,17($2)`
737			`sb $4,0($20)`
738			`lb $4,18($2)`
739			`sb $4,0($20)`
740			`lb $2,19($2)`
741			`sb $2,0($20)`
742	68	rhoads	`sb $23,0($20)`
743	15	rhoads	`sb $21,0($20)`
744
745	23	rhoads	`#c: LH`
746			`ori $2,$0,'c'`
747			`sb $2,0($20)`
748	68	rhoads	`or $2,$0,$24`
749	15	rhoads	`li $3,0x00410042`
750			`sw $3,16($2)`
751			`lh $4,16($2)`
752			`sb $4,0($20)`
753			`lh $2,18($2)`
754			`sb $2,0($20)`
755	68	rhoads	`sb $23,0($20)`
756	15	rhoads	`sb $21,0($20)`
757
758	23	rhoads	`#d: LHU`
759			`ori $2,$0,'d'`
760			`sb $2,0($20)`
761	68	rhoads	`or $2,$0,$24`
762	15	rhoads	`li $3,0x00410042`
763			`sw $3,16($2)`
764			`lh $4,16($2)`
765			`sb $4,0($20)`
766			`lh $2,18($2)`
767			`sb $2,0($20)`
768	68	rhoads	`sb $23,0($20)`
769	15	rhoads	`sb $21,0($20)`
770
771	23	rhoads	`#e: LW`
772			`ori $2,$0,'e'`
773			`sb $2,0($20)`
774	68	rhoads	`or $2,$0,$24`
775	15	rhoads	`li $3,'A'`
776			`sw $3,16($2)`
777			`ori $3,$0,0`
778			`lw $2,16($2)`
779			`sb $2,0($20)`
780	68	rhoads	`sb $23,0($20)`
781	15	rhoads	`sb $21,0($20)`
782
783	23	rhoads	`#f: LWL & LWR`
784			`ori $2,$0,'f'`
785			`sb $2,0($20)`
786	68	rhoads	`or $2,$0,$24`
787	15	rhoads	`li $3,'A'`
788			`sw $3,16($2)`
789			`ori $3,$0,0`
790			`lwl $2,16($2)`
791			`lwr $2,16($2)`
792			`sb $2,0($20)`
793	68	rhoads	`sb $23,0($20)`
794	15	rhoads	`sb $21,0($20)`
795
796	23	rhoads	`#g: SB`
797			`ori $2,$0,'g'`
798			`sb $2,0($20)`
799	15	rhoads	`ori $2,$0,'A'`
800			`sb $2,0($20)`
801	68	rhoads	`sb $23,0($20)`
802	15	rhoads	`sb $21,0($20)`
803
804	23	rhoads	`#h: SH`
805			`ori $2,$0,'h'`
806			`sb $2,0($20)`
807	68	rhoads	`or $4,$0,$24`
808	15	rhoads	`ori $2,$0,0x4142`
809	29	rhoads	`sh $2,16($4)`
810			`lb $3,16($4)`
811	15	rhoads	`sb $3,0($20)`
812	29	rhoads	`lb $2,17($4)`
813	15	rhoads	`sb $2,0($20)`
814	68	rhoads	`sb $23,0($20)`
815	15	rhoads	`sb $21,0($20)`
816
817	23	rhoads	`#i: SW`
818			`ori $2,$0,'i'`
819			`sb $2,0($20)`
820	68	rhoads	`or $2,$0,$24`
821	15	rhoads	`li $3,0x41424344`
822			`sw $3,16($2)`
823			`lb $4,16($2)`
824			`sb $4,0($20)`
825			`lb $4,17($2)`
826			`sb $4,0($20)`
827			`lb $4,18($2)`
828			`sb $4,0($20)`
829			`lb $2,19($2)`
830			`sb $2,0($20)`
831	68	rhoads	`sb $23,0($20)`
832	15	rhoads	`sb $21,0($20)`
833
834	23	rhoads	`#j: SWL & SWR`
835			`ori $2,$0,'j'`
836			`sb $2,0($20)`
837	68	rhoads	`or $2,$0,$24`
838	15	rhoads	`li $3,0x41424344`
839			`swl $3,16($2)`
840			`swr $3,16($2)`
841			`lb $4,16($2)`
842			`sb $4,0($20)`
843			`lb $4,17($2)`
844			`sb $4,0($20)`
845			`lb $4,18($2)`
846			`sb $4,0($20)`
847			`lb $2,19($2)`
848			`sb $2,0($20)`
849	68	rhoads	`sb $23,0($20)`
850	15	rhoads	`sb $21,0($20)`
851
852
853			`######################################`
854			`#Logical Instructions`
855			`######################################`
856	194	rhoads	`LogicalTest:`
857	15	rhoads	`ori $2,$0,'L'`
858			`sb $2,0($20)`
859			`ori $2,$0,'o'`
860			`sb $2,0($20)`
861			`ori $2,$0,'g'`
862			`sb $2,0($20)`
863			`ori $2,$0,'i'`
864			`sb $2,0($20)`
865			`ori $2,$0,'c'`
866			`sb $2,0($20)`
867	68	rhoads	`sb $23,0($20)`
868	15	rhoads	`sb $21,0($20)`
869
870	23	rhoads	`#a: AND`
871			`ori $2,$0,'a'`
872			`sb $2,0($20)`
873	15	rhoads	`ori $2,$0,0x0741`
874			`ori $3,$0,0x60f3`
875			`and $4,$2,$3`
876			`sb $4,0($20)`
877	68	rhoads	`sb $23,0($20)`
878	15	rhoads	`sb $21,0($20)`
879
880	23	rhoads	`#b: ANDI`
881			`ori $2,$0,'b'`
882			`sb $2,0($20)`
883	15	rhoads	`ori $2,$0,0x0741`
884			`andi $4,$2,0x60f3`
885			`sb $4,0($20)`
886	68	rhoads	`sb $23,0($20)`
887	15	rhoads	`sb $21,0($20)`
888
889	23	rhoads	`#c: LUI`
890			`ori $2,$0,'c'`
891			`sb $2,0($20)`
892	15	rhoads	`lui $2,0x41`
893			`srl $3,$2,16`
894			`sb $3,0($20)`
895	68	rhoads	`sb $23,0($20)`
896	15	rhoads	`sb $21,0($20)`
897
898	23	rhoads	`#d: NOR`
899			`ori $2,$0,'d'`
900			`sb $2,0($20)`
901	15	rhoads	`li $2,0xf0fff08e`
902			`li $3,0x0f0f0f30`
903			`nor $4,$2,$3`
904			`sb $4,0($20)`
905	68	rhoads	`sb $23,0($20)`
906	15	rhoads	`sb $21,0($20)`
907
908	23	rhoads	`#e: OR`
909			`ori $2,$0,'e'`
910			`sb $2,0($20)`
911	15	rhoads	`ori $2,$0,0x40`
912			`ori $3,$0,0x01`
913			`or $4,$2,$3`
914			`sb $4,0($20)`
915	68	rhoads	`sb $23,0($20)`
916	15	rhoads	`sb $21,0($20)`
917
918	23	rhoads	`#f: ORI`
919			`ori $2,$0,'f'`
920			`sb $2,0($20)`
921	15	rhoads	`ori $2,$0,0x40`
922			`ori $4,$2,0x01`
923			`sb $4,0($20)`
924	68	rhoads	`sb $23,0($20)`
925	15	rhoads	`sb $21,0($20)`
926
927	23	rhoads	`#g: XOR`
928			`ori $2,$0,'g'`
929			`sb $2,0($20)`
930	15	rhoads	`ori $2,$0,0xf043`
931			`ori $3,$0,0xf002`
932			`xor $4,$2,$3`
933			`sb $4,0($20)`
934	68	rhoads	`sb $23,0($20)`
935	15	rhoads	`sb $21,0($20)`
936
937	23	rhoads	`#h: XORI`
938			`ori $2,$0,'h'`
939			`sb $2,0($20)`
940	15	rhoads	`ori $2,$0,0xf043`
941			`xor $4,$2,0xf002`
942			`sb $4,0($20)`
943	68	rhoads	`sb $23,0($20)`
944	15	rhoads	`sb $21,0($20)`
945
946
947			`######################################`
948			`#Move Instructions`
949			`######################################`
950	194	rhoads	`MoveTest:`
951	15	rhoads	`ori $2,$0,'M'`
952			`sb $2,0($20)`
953			`ori $2,$0,'o'`
954			`sb $2,0($20)`
955			`ori $2,$0,'v'`
956			`sb $2,0($20)`
957			`ori $2,$0,'e'`
958			`sb $2,0($20)`
959	68	rhoads	`sb $23,0($20)`
960	15	rhoads	`sb $21,0($20)`
961
962	23	rhoads	`#a: MFHI`
963			`ori $2,$0,'a'`
964			`sb $2,0($20)`
965	15	rhoads	`ori $2,$0,65`
966			`mthi $2`
967			`mfhi $3`
968			`sb $3,0($20)`
969	68	rhoads	`sb $23,0($20)`
970	15	rhoads	`sb $21,0($20)`
971
972	23	rhoads	`#b: MFLO`
973			`ori $2,$0,'b'`
974			`sb $2,0($20)`
975	15	rhoads	`ori $2,$0,65`
976			`mtlo $2`
977			`mflo $3`
978			`sb $3,0($20)`
979	68	rhoads	`sb $23,0($20)`
980	15	rhoads	`sb $21,0($20)`
981
982	23	rhoads	`#c: MTHI`
983			`ori $2,$0,'c'`
984			`sb $2,0($20)`
985	15	rhoads	`ori $2,$0,65`
986			`mthi $2`
987			`mfhi $3`
988			`sb $3,0($20)`
989	68	rhoads	`sb $23,0($20)`
990	15	rhoads	`sb $21,0($20)`
991
992	23	rhoads	`#d: MTLO`
993			`ori $2,$0,'d'`
994			`sb $2,0($20)`
995	15	rhoads	`ori $2,$0,65`
996			`mtlo $2`
997			`mflo $3`
998			`sb $3,0($20)`
999	68	rhoads	`sb $23,0($20)`
1000	15	rhoads	`sb $21,0($20)`
1001
1002
1003			`######################################`
1004			`#Shift Instructions`
1005			`######################################`
1006	194	rhoads	`ShiftTest:`
1007	15	rhoads	`ori $2,$0,'S'`
1008			`sb $2,0($20)`
1009			`ori $2,$0,'h'`
1010			`sb $2,0($20)`
1011			`ori $2,$0,'i'`
1012			`sb $2,0($20)`
1013			`ori $2,$0,'f'`
1014			`sb $2,0($20)`
1015			`ori $2,$0,'t'`
1016			`sb $2,0($20)`
1017	68	rhoads	`sb $23,0($20)`
1018	15	rhoads	`sb $21,0($20)`
1019
1020	23	rhoads	`#a: SLL`
1021			`ori $2,$0,'a'`
1022			`sb $2,0($20)`
1023	15	rhoads	`li $2,0x40414243`
1024			`sll $3,$2,8`
1025			`srl $3,$3,24`
1026			`sb $3,0($20)`
1027	68	rhoads	`sb $23,0($20)`
1028	15	rhoads	`sb $21,0($20)`
1029
1030	23	rhoads	`#b: SLLV`
1031			`ori $2,$0,'b'`
1032			`sb $2,0($20)`
1033	15	rhoads	`li $2,0x40414243`
1034			`ori $3,$0,8`
1035			`sllv $3,$2,$3`
1036			`srl $3,$3,24`
1037			`sb $3,0($20)`
1038	68	rhoads	`sb $23,0($20)`
1039	15	rhoads	`sb $21,0($20)`
1040
1041	23	rhoads	`#c: SRA`
1042			`ori $2,$0,'c'`
1043			`sb $2,0($20)`
1044	15	rhoads	`li $2,0x40414243`
1045			`sra $3,$2,16`
1046			`sb $3,0($20)`
1047			`li $2,0x84000000`
1048			`sra $3,$2,25`
1049			`sub $3,$3,0x80`
1050			`sb $3,0($20)`
1051	68	rhoads	`sb $23,0($20)`
1052	15	rhoads	`sb $21,0($20)`
1053
1054	23	rhoads	`#d: SRAV`
1055			`ori $2,$0,'d'`
1056			`sb $2,0($20)`
1057	15	rhoads	`li $2,0x40414243`
1058			`ori $3,$0,16`
1059			`srav $3,$2,$3`
1060			`sb $3,0($20)`
1061			`ori $3,$0,25`
1062			`li $2,0x84000000`
1063	29	rhoads	`srav $3,$2,$3`
1064	15	rhoads	`sub $3,$3,0x80`
1065			`sb $3,0($20)`
1066	68	rhoads	`sb $23,0($20)`
1067	15	rhoads	`sb $21,0($20)`
1068
1069	23	rhoads	`#e: SRL`
1070			`ori $2,$0,'e'`
1071			`sb $2,0($20)`
1072	15	rhoads	`li $2,0x40414243`
1073			`srl $3,$2,16`
1074			`sb $3,0($20)`
1075			`li $2,0x84000000`
1076	29	rhoads	`srl $3,$2,25`
1077	15	rhoads	`sb $3,0($20)`
1078	68	rhoads	`sb $23,0($20)`
1079	15	rhoads	`sb $21,0($20)`
1080
1081	23	rhoads	`#f: SRLV`
1082			`ori $2,$0,'f'`
1083			`sb $2,0($20)`
1084	15	rhoads	`li $2,0x40414243`
1085			`ori $3,$0,16`
1086			`srlv $4,$2,$3`
1087			`sb $4,0($20)`
1088			`ori $3,$0,25`
1089			`li $2,0x84000000`
1090	29	rhoads	`srlv $3,$2,$3`
1091	15	rhoads	`sb $3,0($20)`
1092	68	rhoads	`sb $23,0($20)`
1093	15	rhoads	`sb $21,0($20)`
1094
1095
1096			`ori $2,$0,'D'`
1097			`sb $2,0($20)`
1098			`ori $2,$0,'o'`
1099			`sb $2,0($20)`
1100			`ori $2,$0,'n'`
1101			`sb $2,0($20)`
1102			`ori $2,$0,'e'`
1103			`sb $2,0($20)`
1104	68	rhoads	`sb $23,0($20)`
1105	15	rhoads	`sb $21,0($20)`
1106
1107
1108			`$DONE:`
1109			`j $DONE`
1110			`nop`
1111
1112			`.set reorder`
1113			`.end entry`
1114

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