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

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