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[/] [ion/] [trunk/] [src/] [opcodes/] [opcodes.s] - Blame information for rev 173

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Line No.	Rev	Author	Line
1	2	ja_rd	`################################################################################`
2	4	ja_rd	`# opcode.s -- MIPS opcode tester for Ion project`
3	2	ja_rd	`#-------------------------------------------------------------------------------`
4			`# ORIGINAL AUTHOR: Steve Rhoads (rhoadss@yahoo.com) -- 1/10/01`
5			`#`
6			`# This file is an edited version of 'opcodes.asm', which is part of the Plasma`
7			`# project (http://opencores.org/project,plasma).`
8			`# COPYRIGHT: Software placed into the public domain by the original author.`
9			`# Software 'as is' without warranty. Author liable for nothing.`
10	4	ja_rd	`#`
11	2	ja_rd	`#-------------------------------------------------------------------------------`
12	4	ja_rd	`# This assembly file tests all of the opcodes supported by the Ion core.`
13	2	ja_rd	`# This test assumes that address 0x20000000 is the UART write register.`
14			`# Successful tests will print out "A" or "AB" or "ABC" or ....`
15			`# Missing letters or letters out of order indicate a failure.`
16	14	ja_rd	`#`
17	2	ja_rd	`#-------------------------------------------------------------------------------`
18	4	ja_rd	`# NOTE: This test bench relies on the simulation logs to catch errors. That is,`
19	38	ja_rd	`# unlike the original Plasma code, this one does not check the test success`
20			`# conditions. Instead, it performs the operations to be tested and relies on you`
21	4	ja_rd	`# to compare the logs from the logic simulation and the software simulation.`
22			`# Test that work this way have been commented with this tag: "@log"`
23			`#`
24	2	ja_rd	`#-------------------------------------------------------------------------------`
25	4	ja_rd	`# NOTE: NOPs have been inserted after load instructions.`
26	2	ja_rd	`#`
27			`################################################################################`
28
29	4	ja_rd	`#-- Set flags below to >0 to enable/disable test assembly ------------------`
30	2	ja_rd
31	4	ja_rd	`.set TEST_UNALIGNED_LOADS, 0 # unaligned loads`
32			`.set TEST_UNALIGNED_STORES, 0 # unaligned stores`
33			`.set TEST_BREAK, 1 # BREAK instruction`
34			`# WARNING: the assembler expands div instructions, see 'as' manual`
35	14	ja_rd	`.set TEST_DIV, 1 # DIV* instructions`
36			`.set TEST_MUL, 1 # MUL* instructions`
37	148	ja_rd	`.set USE_CACHE, 1 # Initialize and enable cache`
38	165	ja_rd	`.set EMU_MIPS32, 1 # Emulates selected MIPS32 opcodes`
39	148	ja_rd
40			`.set ICACHE_NUM_LINES, 256 # no. of lines in the I-Cache`
41			`.set DCACHE_NUM_LINES, 256 # no. of lines in the D-Cache`
42			`.set DCACHE_LINE_SIZE, 4 # D-Cache line size in words`
43	2	ja_rd
44	4	ja_rd	`#---------------------------------------------------------------------------`
45
46	2	ja_rd	`.text`
47			`.align 2`
48			`.globl entry`
49			`.ent entry`
50			`entry:`
51			`.set noreorder`
52
53			`la $gp, _gp #initialize stack pointer`
54			`la $4, __bss_start #$4 = .sbss_start`
55			`la $5, _end #$5 = .bss_end`
56			`nop #no stack needed`
57			`nop`
58
59			`b StartTest`
60			`nop`
61
62	29	ja_rd
63			`# Trap handler address`
64	66	ja_rd	`#.org 0x3c`
65			`.org 0x0180`
66
67	29	ja_rd	`# We have three trap sources: syscall, break and unimplemented opcode`
68			`# Plus we have to account for a faulty cause code; that's 4 causes`
69			`# Besides, we have to look out for the branch delay flag (BD)`
70			`# We'll just increment $4 by a fixed constant depending on the cause`
71			`# so we will not save any registers (there's no stack anyway)`
72			`InterruptVector:`
73			`mfc0 $k0,$13 # Get trap cause code`
74	152	ja_rd	`srl $k0,$k0,2`
75	29	ja_rd	`andi $k0,$k0,0x01f`
76			`ori $k1,$zero,0x8 # was it a syscall?`
77			`beq $k0,$k1,trap_syscall`
78			`addi $k1,$k1,0x1 # was it a break?`
79			`beq $k0,$k1,trap_break`
80			`addi $k1,$k1,0x1 # was it a bad opcode?`
81			`bne $k0,$k1,trap_invalid`
82	2	ja_rd	`nop`
83	29	ja_rd
84			`# Unimplemented instruction`
85			`trap_unimplemented:`
86	165	ja_rd	`.ifgt EMU_MIPS32`
87			`# jump to mips32 opcode emulator with c0_cause in $k0`
88			`j opcode_emu`
89			`nop`
90			`.else`
91			`# just do some simple arith so the opcode tester knows we were here`
92	29	ja_rd	`j trap_return`
93			`add $4,$4,4`
94	165	ja_rd	`.endif`
95	2	ja_rd
96	29	ja_rd	`# Break instruction`
97			`trap_break:`
98			`j trap_return`
99	2	ja_rd	`add $4,$4,5`
100	29	ja_rd
101			`# Syscall instruction`
102			`trap_syscall:`
103	165	ja_rd	`mfc0 $k0,$12 # test behavior of rfe: invert bit IE of SR...`
104			`xori $k0,0x01`
105			`mtc0 $k0,$12 # ...and see (in the @log) if rfe recovers it`
106			`j trap_return`
107	29	ja_rd	`add $4,$4,6`
108
109			`# Invalid trap cause code, most likely hardware bug`
110			`trap_invalid:`
111			`j trap_return`
112			`add $4,$4,0xf`
113
114			`trap_return:`
115			`mfc0 $k1,$14 # C0_EPC=14 (Exception PC)`
116			`mfc0 $k0,$13 # Get bit 31 (BD) from C0 cause register`
117			`srl $k0,31`
118			`andi $k0,$k0,1`
119			`bnez $k0,trap_return_delay_slot`
120			`addi $k1,$k1,4 # skip trap instruction`
121			`jr $k1`
122			`nop`
123			`trap_return_delay_slot:`
124			`addi $k1,$k1,4 # skip jump instruction too`
125			`jr $k1 # (we just added 8 to epc)`
126	165	ja_rd	`rfe`
127	29	ja_rd
128
129	2	ja_rd	`StartTest:`
130	148	ja_rd	`.ifgt USE_CACHE`
131			`jal setup_cache`
132			`nop`
133			`.else`
134	165	ja_rd	`ori $k0,$zero,0x1`
135			`mtc0 $k0,$12 # disable interrupts and cache, stay in kernel`
136	148	ja_rd	`.endif`
137	152	ja_rd
138	165	ja_rd	`li $k0,0x00020000 # enter user mode...`
139			`mtc0 $k0,$12 # ...NOW`
140			`mfc0 $k0,$12 # verify COP* in user mode triggers trap (@log)`
141	152	ja_rd	`ori $k0,0x01`
142			`mtc0 $k0,$12 # verify COP* in user mode triggers trap (@log)`
143	165	ja_rd	`# The two above COP0s should trigger a trap. The 1st one tests the delay in`
144			`# entering user mode.`
145	152	ja_rd
146	165	ja_rd	`# The rest of the tests proceed in user mode (not that there's much`
147			`# difference...)`
148
149	2	ja_rd	`lui $20,0x2000 # serial port write address`
150			`ori $21,$0,'\n' # <CR> character`
151			`ori $22,$0,'X' # 'X' letter`
152			`ori $23,$0,'\r'`
153			`ori $24,$0,0x0f80 # temp memory`
154
155	165	ja_rd	`sb $23,0($20) # Write a message to console`
156	2	ja_rd	`sb $21,0($20)`
157			`sb $23,0($20)`
158			`sb $21,0($20)`
159			`sb $23,0($20)`
160			`sb $21,0($20)`
161			`sb $23,0($20)`
162			`sb $21,0($20)`
163	29	ja_rd
164	165	ja_rd
165	2	ja_rd	`######################################`
166			`#Arithmetic Instructions`
167			`######################################`
168			`ArthmeticTest:`
169			`ori $2,$0,'A'`
170			`sb $2,0($20)`
171			`ori $2,$0,'r'`
172			`sb $2,0($20)`
173			`ori $2,$0,'i'`
174			`sb $2,0($20)`
175			`ori $2,$0,'t'`
176			`sb $2,0($20)`
177			`ori $2,$0,'h'`
178			`sb $2,0($20)`
179			`sb $23,0($20)`
180			`sb $21,0($20)`
181
182			`#a: ADD`
183			`ori $2,$0,'a'`
184			`sb $2,0($20)`
185			`ori $3,$0,5`
186			`ori $4,$0,60`
187			`add $2,$3,$4`
188			`sb $2,0($20) #A`
189			`sb $23,0($20)`
190			`sb $21,0($20)`
191
192			`#b: ADDI`
193			`ori $2,$0,'b'`
194			`sb $2,0($20)`
195			`ori $4,$0,60`
196			`addi $2,$4,5`
197			`sb $2,0($20) #A`
198			`sb $23,0($20)`
199			`sb $21,0($20)`
200
201			`#c: ADDIU`
202			`ori $2,$0,'c'`
203			`sb $2,0($20)`
204			`ori $4,$0,50`
205			`addiu $5,$4,15`
206			`sb $5,0($20) #A`
207			`sb $23,0($20)`
208			`sb $21,0($20)`
209
210			`#d: ADDU`
211			`ori $2,$0,'d'`
212			`sb $2,0($20)`
213			`ori $3,$0,5`
214			`ori $4,$0,60`
215			`add $2,$3,$4`
216			`sb $2,0($20) #A`
217			`sb $23,0($20)`
218			`sb $21,0($20)`
219
220	4	ja_rd	`# DIV tests, skip conditionally`
221			`.ifgt TEST_DIV`
222	2	ja_rd
223			`#e: DIV`
224			`ori $2,$0,'e'`
225			`sb $2,0($20)`
226			`ori $2,$0,65*117+41`
227			`ori $3,$0,117`
228			`div $2,$3`
229			`nop`
230			`mflo $4`
231			`sb $4,0($20) #A`
232			`mfhi $4`
233			`addi $4,$4,66-41`
234			`sb $4,0($20) #B`
235			`li $2,-67*19`
236			`ori $3,$0,19`
237			`div $2,$3`
238			`nop`
239			`mflo $4`
240			`sub $4,$0,$4`
241			`sb $4,0($20) #C`
242			`ori $2,$0,68*23`
243			`li $3,-23`
244			`div $2,$3`
245			`nop`
246			`mflo $4`
247			`sub $4,$0,$4`
248			`sb $4,0($20) #D`
249			`li $2,-69*13`
250			`li $3,-13`
251			`div $2,$3`
252			`mflo $4`
253			`sb $4,0($20) #E`
254			`sb $23,0($20)`
255			`sb $21,0($20)`
256
257			`#f: DIVU`
258			`ori $2,$0,'f'`
259			`sb $2,0($20)`
260			`ori $2,$0,65*13`
261			`ori $3,$0,13`
262			`divu $2,$3`
263			`nop`
264			`mflo $4`
265			`sb $4,0($20) #A`
266			`sb $23,0($20)`
267			`sb $21,0($20)`
268	4	ja_rd	`.endif`
269	2	ja_rd
270	4	ja_rd	`# MUL tests, skip conditionally`
271			`.ifgt TEST_MUL`
272	2	ja_rd
273			`#g: MULT`
274			`ori $2,$0,'g'`
275			`sb $2,0($20)`
276			`ori $2,$0,5`
277			`ori $3,$0,13`
278			`mult $2,$3`
279			`nop`
280			`mflo $4`
281			`sb $4,0($20) #A`
282			`li $2,-5`
283			`ori $3,$0,13`
284			`mult $2,$3`
285			`mfhi $5`
286			`mflo $4`
287			`sub $4,$0,$4`
288			`addu $4,$4,$5`
289			`addi $4,$4,2`
290			`sb $4,0($20) #B`
291			`ori $2,$0,5`
292			`li $3,-13`
293			`mult $2,$3`
294			`mfhi $5`
295			`mflo $4`
296			`sub $4,$0,$4`
297			`addu $4,$4,$5`
298			`addi $4,$4,3`
299			`sb $4,0($20) #C`
300			`li $2,-5`
301			`li $3,-13`
302			`mult $2,$3`
303			`mfhi $5`
304			`mflo $4`
305			`addu $4,$4,$5`
306			`addi $4,$4,3`
307			`sb $4,0($20) #D`
308			`lui $4,0xfe98`
309			`ori $4,$4,0x62e5`
310			`lui $5,0x6`
311			`ori $5,0x8db8`
312			`mult $4,$5`
313			`mfhi $6`
314			`addiu $7,$6,2356+1+'E' #E`
315			`sb $7,0($20)`
316			`sb $23,0($20)`
317			`sb $21,0($20)`
318
319			`#h: MULTU`
320			`ori $2,$0,'h'`
321			`sb $2,0($20)`
322			`ori $2,$0,5`
323			`ori $3,$0,13`
324			`multu $2,$3`
325			`nop`
326			`mflo $4`
327			`sb $4,0($20) #A`
328			`sb $23,0($20)`
329			`sb $21,0($20)`
330	4	ja_rd	`.endif`
331	2	ja_rd
332			`#i: SLT`
333			`ori $2,$0,'i'`
334			`sb $2,0($20)`
335			`ori $2,$0,10`
336			`ori $3,$0,12`
337			`slt $4,$2,$3`
338			`addi $5,$4,64`
339			`sb $5,0($20) #A`
340			`slt $4,$3,$2`
341			`addi $5,$4,66`
342			`sb $5,0($20) #B`
343			`li $2,0xfffffff0`
344			`slt $4,$2,$3`
345			`addi $5,$4,66`
346			`sb $5,0($20) #C`
347			`slt $4,$3,$2`
348			`addi $5,$4,68`
349			`sb $5,0($20) #D`
350			`li $3,0xffffffff`
351			`slt $4,$2,$3`
352			`addi $5,$4,68`
353			`sb $5,0($20) #E`
354			`slt $4,$3,$2`
355			`addi $5,$4,70`
356			`sb $5,0($20) #F`
357			`sb $23,0($20)`
358			`sb $21,0($20)`
359
360			`#j: SLTI`
361			`ori $2,$0,'j'`
362			`sb $2,0($20)`
363			`ori $2,$0,10`
364			`slti $4,$2,12`
365			`addi $5,$4,64`
366			`sb $5,0($20) #A`
367			`slti $4,$2,8`
368			`addi $5,$4,66`
369			`sb $5,0($20) #B`
370			`sb $23,0($20)`
371			`sb $21,0($20)`
372
373			`#k: SLTIU`
374			`ori $2,$0,'k'`
375			`sb $2,0($20)`
376			`ori $2,$0,10`
377			`sltiu $4,$2,12`
378			`addi $5,$4,64`
379			`sb $5,0($20) #A`
380			`sltiu $4,$2,8`
381			`addi $5,$4,66`
382			`sb $5,0($20) #B`
383			`sb $23,0($20)`
384			`sb $21,0($20)`
385
386			`#l: SLTU`
387			`ori $2,$0,'l'`
388			`sb $2,0($20)`
389			`ori $2,$0,10`
390			`ori $3,$0,12`
391			`slt $4,$2,$3`
392			`addi $5,$4,64`
393			`sb $5,0($20) #A`
394			`slt $4,$3,$2`
395			`addi $5,$4,66`
396			`sb $5,0($20) #B`
397			`sb $23,0($20)`
398			`sb $21,0($20)`
399
400			`#m: SUB`
401			`ori $2,$0,'m'`
402			`sb $2,0($20)`
403			`ori $3,$0,70`
404			`ori $4,$0,5`
405			`sub $2,$3,$4`
406			`sb $2,0($20) #A`
407			`sb $23,0($20)`
408			`sb $21,0($20)`
409
410			`#n: SUBU`
411			`ori $2,$0,'n'`
412			`sb $2,0($20)`
413			`ori $3,$0,70`
414			`ori $4,$0,5`
415			`sub $2,$3,$4`
416			`sb $2,0($20) #A`
417			`sb $23,0($20)`
418			`sb $21,0($20)`
419
420			`######################################`
421			`#Branch and Jump Instructions`
422			`######################################`
423			`BranchTest:`
424			`ori $2,$0,'B'`
425			`sb $2,0($20)`
426			`ori $2,$0,'r'`
427			`sb $2,0($20)`
428			`ori $2,$0,'a'`
429			`sb $2,0($20)`
430			`ori $2,$0,'n'`
431			`sb $2,0($20)`
432			`ori $2,$0,'c'`
433			`sb $2,0($20)`
434			`ori $2,$0,'h'`
435			`sb $2,0($20)`
436			`sb $23,0($20)`
437			`sb $21,0($20)`
438
439			`#a: B`
440			`ori $2,$0,'a'`
441			`sb $2,0($20)`
442			`ori $10,$0,'A'`
443			`ori $11,$0,'B'`
444			`b $B1`
445			`sb $10,0($20)`
446			`sb $22,0($20)`
447			`$B1:`
448			`sb $11,0($20)`
449			`sb $23,0($20)`
450			`sb $21,0($20)`
451
452			`#b: BAL`
453			`ori $2,$0,'b'`
454			`sb $2,0($20)`
455			`ori $10,$0,'A'`
456			`ori $11,$0,'B'`
457			`ori $12,$0,'C'`
458			`ori $13,$0,'D'`
459			`ori $14,$0,'E'`
460			`ori $15,$0,'X'`
461			`bal $BAL1`
462			`sb $10,0($20)`
463			`sb $13,0($20)`
464			`b $BAL2`
465			`sb $14,0($20)`
466			`sb $15,0($20)`
467			`$BAL1:`
468			`sb $11,0($20)`
469			`jr $31`
470			`sb $12,0($20)`
471			`sb $22,0($20)`
472			`$BAL2:`
473			`sb $23,0($20)`
474			`sb $21,0($20)`
475
476			`#c: BEQ`
477			`ori $2,$0,'c'`
478			`sb $2,0($20)`
479			`ori $10,$0,'A'`
480			`ori $11,$0,'B'`
481			`ori $12,$0,'C'`
482			`ori $13,$0,'D'`
483			`ori $2,$0,100`
484			`ori $3,$0,123`
485			`ori $4,$0,123`
486			`beq $2,$3,$BEQ1`
487			`sb $10,0($20)`
488			`sb $11,0($20)`
489			`beq $3,$4,$BEQ1`
490			`sb $12,0($20)`
491			`sb $22,0($20)`
492			`$BEQ1:`
493			`sb $13,0($20)`
494			`sb $23,0($20)`
495			`sb $21,0($20)`
496
497			`#d: BGEZ`
498			`ori $2,$0,'d'`
499			`sb $2,0($20)`
500			`ori $10,$0,'A'`
501			`ori $11,$0,'B'`
502			`ori $12,$0,'C'`
503			`ori $13,$0,'D'`
504			`or $15,$0,'X'`
505			`ori $2,$0,100`
506			`li $3,0xffff1234`
507			`ori $4,$0,123`
508			`bgez $3,$BGEZ1`
509			`sb $10,0($20)`
510			`sb $11,0($20)`
511			`bgez $2,$BGEZ1`
512			`sb $12,0($20)`
513			`sb $22,0($20)`
514			`$BGEZ1:`
515			`bgez $0,$BGEZ2`
516			`nop`
517			`sb $15,0($20)`
518			`$BGEZ2:`
519			`sb $13,0($20)`
520			`sb $23,0($20)`
521			`sb $21,0($20)`
522
523			`#e: BGEZAL`
524			`ori $2,$0,'e'`
525			`sb $2,0($20)`
526			`ori $10,$0,'A'`
527			`ori $11,$0,'B'`
528			`ori $12,$0,'C'`
529			`ori $13,$0,'D'`
530			`ori $14,$0,'E'`
531			`ori $15,$0,'X'`
532			`li $3,0xffff1234`
533			`bgezal $3,$BGEZAL1`
534			`nop`
535			`sb $10,0($20)`
536			`bgezal $0,$BGEZAL1`
537			`nop`
538			`sb $13,0($20)`
539			`b $BGEZAL2`
540			`sb $14,0($20)`
541			`sb $15,0($20)`
542			`$BGEZAL1:`
543			`sb $11,0($20)`
544			`jr $31`
545			`sb $12,0($20)`
546			`sb $22,0($20)`
547			`$BGEZAL2:`
548			`sb $23,0($20)`
549			`sb $21,0($20)`
550
551			`#f: BGTZ`
552			`ori $2,$0,'f'`
553			`sb $2,0($20)`
554			`ori $10,$0,'A'`
555			`ori $11,$0,'B'`
556			`ori $12,$0,'C'`
557			`ori $13,$0,'D'`
558			`ori $2,$0,100`
559			`li $3,0xffff1234`
560			`bgtz $3,$BGTZ1`
561			`sb $10,0($20)`
562			`sb $11,0($20)`
563			`bgtz $2,$BGTZ1`
564			`sb $12,0($20)`
565			`sb $22,0($20)`
566			`$BGTZ1:`
567			`sb $13,0($20)`
568			`sb $23,0($20)`
569			`sb $21,0($20)`
570
571			`#g: BLEZ`
572			`ori $2,$0,'g'`
573			`sb $2,0($20)`
574			`ori $10,$0,'A'`
575			`ori $11,$0,'B'`
576			`ori $12,$0,'C'`
577			`ori $13,$0,'D'`
578			`ori $2,$0,100`
579			`li $3,0xffff1234`
580			`blez $2,$BLEZ1`
581			`sb $10,0($20)`
582			`sb $11,0($20)`
583			`blez $3,$BLEZ1`
584			`sb $12,0($20)`
585			`sb $22,0($20)`
586			`$BLEZ1:`
587			`blez $0,$BLEZ2`
588			`nop`
589			`sb $22,0($20)`
590			`$BLEZ2:`
591			`sb $13,0($20)`
592			`sb $23,0($20)`
593			`sb $21,0($20)`
594
595			`#h: BLTZ`
596			`ori $2,$0,'h'`
597			`sb $2,0($20)`
598			`ori $10,$0,'A'`
599			`ori $11,$0,'B'`
600			`ori $12,$0,'C'`
601			`ori $13,$0,'D'`
602			`ori $14,$0,'E'`
603			`ori $2,$0,100`
604			`li $3,0xffff1234`
605			`ori $4,$0,0`
606			`bltz $2,$BLTZ1`
607			`sb $10,0($20)`
608			`sb $11,0($20)`
609			`bltz $3,$BLTZ1`
610			`sb $12,0($20)`
611			`sb $22,0($20)`
612			`$BLTZ1:`
613			`bltz $4,$BLTZ2`
614			`nop`
615			`sb $13,0($20)`
616			`$BLTZ2:`
617			`sb $14,0($20)`
618			`sb $23,0($20)`
619			`sb $21,0($20)`
620
621			`#i: BLTZAL`
622			`ori $2,$0,'i'`
623			`sb $2,0($20)`
624			`ori $10,$0,'A'`
625			`ori $11,$0,'B'`
626			`ori $12,$0,'C'`
627			`ori $13,$0,'D'`
628			`ori $14,$0,'E'`
629			`ori $15,$0,'X'`
630			`li $3,0xffff1234`
631			`bltzal $0,$BLTZAL1`
632			`nop`
633			`sb $10,0($20)`
634			`bltzal $3,$BLTZAL1`
635			`nop`
636			`sb $13,0($20)`
637			`b $BLTZAL2`
638			`sb $14,0($20)`
639			`sb $15,0($20)`
640			`$BLTZAL1:`
641			`sb $11,0($20)`
642			`jr $31`
643			`sb $12,0($20)`
644			`sb $22,0($20)`
645			`$BLTZAL2:`
646			`sb $23,0($20)`
647			`sb $21,0($20)`
648
649			`#j: BNE`
650			`ori $2,$0,'j'`
651			`sb $2,0($20)`
652			`ori $10,$0,'A'`
653			`ori $11,$0,'B'`
654			`ori $12,$0,'C'`
655			`ori $13,$0,'D'`
656			`ori $2,$0,100`
657			`ori $3,$0,123`
658			`ori $4,$0,123`
659			`bne $3,$4,$BNE1`
660			`sb $10,0($20)`
661			`sb $11,0($20)`
662			`bne $2,$3,$BNE1`
663			`sb $12,0($20)`
664			`sb $22,0($20)`
665			`$BNE1:`
666			`sb $13,0($20)`
667			`sb $23,0($20)`
668			`sb $21,0($20)`
669
670			`#k: J`
671			`ori $2,$0,'k'`
672			`sb $2,0($20)`
673			`ori $10,$0,'A'`
674			`ori $11,$0,'B'`
675			`ori $15,$0,'X'`
676			`j $J1`
677			`sb $10,0($20)`
678			`sb $15,0($20)`
679			`$J1:`
680			`sb $11,0($20)`
681			`sb $23,0($20)`
682			`sb $21,0($20)`
683
684			`#l: JAL`
685			`ori $2,$0,'l'`
686			`sb $2,0($20)`
687			`ori $10,$0,'A'`
688			`ori $11,$0,'B'`
689			`ori $12,$0,'C'`
690			`ori $13,$0,'D'`
691			`ori $14,$0,'E'`
692			`ori $15,$0,'X'`
693			`jal $JAL1`
694			`sb $10,0($20)`
695			`sb $13,0($20)`
696			`b $JAL2`
697			`sb $14,0($20)`
698			`sb $15,0($20)`
699			`$JAL1:`
700			`sb $11,0($20)`
701			`jr $31`
702			`sb $12,0($20)`
703			`sb $22,0($20)`
704			`$JAL2:`
705			`sb $23,0($20)`
706			`sb $21,0($20)`
707
708			`#m: JALR`
709			`ori $2,$0,'m'`
710			`sb $2,0($20)`
711			`ori $10,$0,'A'`
712			`ori $11,$0,'B'`
713			`ori $12,$0,'C'`
714			`ori $13,$0,'D'`
715			`ori $14,$0,'E'`
716			`ori $15,$0,'X'`
717			`la $3,$JALR1`
718			`jalr $3`
719			`sb $10,0($20)`
720			`sb $13,0($20)`
721			`b $JALR2`
722			`sb $14,0($20)`
723			`sb $15,0($20)`
724			`$JALR1:`
725			`sb $11,0($20)`
726			`jr $31`
727			`sb $12,0($20)`
728			`sb $22,0($20)`
729			`$JALR2:`
730			`sb $23,0($20)`
731			`sb $21,0($20)`
732
733			`#n: JR`
734			`ori $2,$0,'n'`
735			`sb $2,0($20)`
736			`ori $10,$0,'A'`
737			`ori $11,$0,'B'`
738			`ori $15,$0,'X'`
739			`la $3,$JR1`
740			`jr $3`
741			`sb $10,0($20)`
742			`sb $15,0($20)`
743			`$JR1:`
744			`sb $11,0($20)`
745			`sb $23,0($20)`
746			`sb $21,0($20)`
747
748			`#o: NOP`
749			`ori $2,$0,'o'`
750			`sb $2,0($20)`
751			`ori $2,$0,65`
752			`nop`
753			`sb $2,0($20)`
754			`sb $23,0($20)`
755			`sb $21,0($20)`
756
757			`# b LoadTest`
758
759	4	ja_rd
760	2	ja_rd	`BreakTest:`
761	4	ja_rd	`.ifgt TEST_BREAK`
762	2	ja_rd	`#p: BREAK`
763	4	ja_rd	`ori $2,$0,'p' # check if it jumps to break address and comes back`
764	2	ja_rd	`sb $2,0($20)`
765			`ori $2,$0,'z'`
766			`ori $4,$0,59`
767			`break 0`
768			`addi $4,$4,1`
769			`sb $4,0($20)`
770	4	ja_rd
771			`break 0 # check if load instruction is aborted (@log)`
772			`lb $2,16($2)`
773
774			`break 0 # check if jump instruction is aborted (@log)`
775	9	ja_rd	`j break_jump_test1`
776	4	ja_rd	`add $4,$4,5`
777
778	9	ja_rd	`break_jump_test1:`
779	4	ja_rd	`add $4,$4,1 # make sure the jump shows in the log (@log)`
780
781	29	ja_rd	`break 0 # check if store instruction is aborted`
782			`sb $4,0($20)`
783
784	152	ja_rd	`j break_jump_test2 # check if break works in delay slot of jump`
785	29	ja_rd	`break 0`
786	9	ja_rd	`nop`
787			`j break_continue`
788			`nop`
789
790			`break_jump_test2:`
791			`add $4,$4,1`
792
793			`break_continue:`
794	2	ja_rd	`sb $23,0($20)`
795	4	ja_rd	`sb $21,0($20)`
796			`.endif`
797	2	ja_rd
798			`#q: SYSCALL`
799	14	ja_rd	`ori $2,$0,'q' # check if it jumpts to trap vector and comes back`
800	2	ja_rd	`sb $2,0($20)`
801			`ori $4,$0,61`
802			`syscall 0`
803			`addi $4,$4,-1`
804			`sb $4,0($20)`
805	14	ja_rd
806			`syscall 0 # check if load instruction is aborted (@log)`
807			`lb $2,16($2)`
808
809			`syscall 0 # check if jump instruction is aborted (@log)`
810			`j syscall_jump_test1`
811			`add $4,$4,5`
812
813			`syscall_jump_test1:`
814			`add $4,$4,1 # make sure the jump shows in the log (@log)`
815
816	152	ja_rd	`j syscall_jump_test2 # check if syscall works in delay slot of jump`
817			`syscall 0`
818	14	ja_rd	`nop`
819			`j syscall_continue`
820			`nop`
821
822			`syscall_jump_test2:`
823			`add $4,$4,1`
824
825			`syscall_continue:`
826	2	ja_rd	`sb $23,0($20)`
827			`sb $21,0($20)`
828
829
830			`######################################`
831			`#Load, Store, and Memory Control Instructions`
832			`######################################`
833			`LoadTest:`
834			`ori $2,$0,'L'`
835			`sb $2,0($20)`
836			`ori $2,$0,'o'`
837			`sb $2,0($20)`
838			`ori $2,$0,'a'`
839			`sb $2,0($20)`
840			`ori $2,$0,'d'`
841			`sb $2,0($20)`
842			`sb $23,0($20)`
843			`sb $21,0($20)`
844
845			`#a: LB`
846			`ori $2,$0,'a'`
847			`sb $2,0($20)`
848			`or $2,$0,$24`
849			`li $3,0x414243fc`
850			`sw $3,16($2) # 16($2) = 0x414243fc`
851			`lb $4,16($2) # $4 = 0x41`
852			`sb $4,0($20) # UART = 0x41`
853			`lb $4,17($2) # $4 = 0x42`
854			`nop`
855			`sb $4,0($20) # UART = 0x42`
856			`lb $4,18($2) # $4 = 0x43`
857			`nop`
858			`sb $4,0($20) # UART = 0x43`
859			`lb $2,19($2) # $2 = 0xffff.fffc`
860			`nop`
861			`sra $3,$2,8 # $3 = 0xffff.ffff`
862			`addi $3,$3,0x45 # $3 = 0x44`
863			`sb $3,0($20) # UART = 0x44`
864			`addi $2,$2,0x49 # $4 = 0x45, overflow`
865			`sb $2,0($20) # UART = 0x45`
866			`sb $23,0($20) # UART = CR`
867			`sb $21,0($20) # UART = LF`
868
869			`#b: LBU`
870			`ori $2,$0,'b'`
871			`sb $2,0($20)`
872			`or $2,$0,$24`
873			`li $3,0x41424344`
874			`sw $3,16($2)`
875			`lb $4,16($2)`
876			`sb $4,0($20)`
877			`lb $4,17($2)`
878			`sb $4,0($20)`
879			`lb $4,18($2)`
880			`sb $4,0($20)`
881			`lb $2,19($2)`
882			`sb $2,0($20)`
883			`sb $23,0($20)`
884			`sb $21,0($20)`
885
886			`#c: LH`
887			`ori $2,$0,'c'`
888			`sb $2,0($20)`
889			`or $2,$0,$24`
890			`li $3,0x00410042`
891			`sw $3,16($2)`
892			`lh $4,16($2)`
893			`sb $4,0($20)`
894			`lh $2,18($2)`
895			`sb $2,0($20)`
896			`sb $23,0($20)`
897			`sb $21,0($20)`
898
899			`#d: LHU`
900			`ori $2,$0,'d'`
901			`sb $2,0($20)`
902			`or $2,$0,$24`
903			`li $3,0x00410042`
904			`sw $3,16($2)`
905			`lh $4,16($2)`
906			`sb $4,0($20)`
907			`lh $2,18($2)`
908			`sb $2,0($20)`
909			`sb $23,0($20)`
910			`sb $21,0($20)`
911
912			`#e: LW`
913			`ori $2,$0,'e'`
914			`sb $2,0($20)`
915			`or $2,$0,$24`
916			`li $3,'A'`
917			`sw $3,16($2)`
918			`ori $3,$0,0`
919			`lw $2,16($2)`
920			`sb $2,0($20)`
921			`sb $23,0($20)`
922			`sb $21,0($20)`
923
924			`.ifgt TEST_UNALIGNED_LOADS`
925			`#f: LWL & LWR`
926			`ori $2,$0,'f'`
927			`sb $2,0($20)`
928			`or $2,$0,$24`
929			`li $3,'A'`
930			`sw $3,16($2)`
931			`ori $3,$0,0`
932			`lwl $2,16($2)`
933			`lwr $2,16($2)`
934			`sb $2,0($20)`
935			`sb $23,0($20)`
936			`sb $21,0($20)`
937			`.endif`
938
939			`#g: SB`
940			`ori $2,$0,'g'`
941			`sb $2,0($20)`
942			`ori $2,$0,'A'`
943			`sb $2,0($20)`
944			`sb $23,0($20)`
945			`sb $21,0($20)`
946
947			`#h: SH`
948			`ori $2,$0,'h'`
949			`sb $2,0($20)`
950			`or $4,$0,$24`
951			`ori $2,$0,0x4142`
952			`sh $2,16($4)`
953			`lb $3,16($4)`
954			`sb $3,0($20)`
955			`lb $2,17($4)`
956			`sb $2,0($20)`
957			`sb $23,0($20)`
958			`sb $21,0($20)`
959
960			`#i: SW`
961			`ori $2,$0,'i'`
962			`sb $2,0($20)`
963			`or $2,$0,$24`
964			`li $3,0x41424344`
965			`sw $3,16($2)`
966			`lb $4,16($2)`
967			`sb $4,0($20)`
968			`lb $4,17($2)`
969			`sb $4,0($20)`
970			`lb $4,18($2)`
971			`sb $4,0($20)`
972			`lb $2,19($2)`
973			`sb $2,0($20)`
974			`sb $23,0($20)`
975			`sb $21,0($20)`
976
977			`.ifgt TEST_UNALIGNED_STORES`
978			`#j: SWL & SWR`
979			`ori $2,$0,'j'`
980			`sb $2,0($20)`
981			`or $2,$0,$24`
982			`li $3,0x41424344`
983			`swl $3,16($2)`
984			`swr $3,16($2)`
985			`lb $4,16($2)`
986			`sb $4,0($20)`
987			`lb $4,17($2)`
988			`sb $4,0($20)`
989			`lb $4,18($2)`
990			`sb $4,0($20)`
991			`lb $2,19($2)`
992			`sb $2,0($20)`
993			`sb $23,0($20)`
994			`sb $21,0($20)`
995			`.endif`
996
997			`######################################`
998			`#Logical Instructions`
999			`######################################`
1000			`LogicalTest:`
1001			`ori $2,$0,'L'`
1002			`sb $2,0($20)`
1003			`ori $2,$0,'o'`
1004			`sb $2,0($20)`
1005			`ori $2,$0,'g'`
1006			`sb $2,0($20)`
1007			`ori $2,$0,'i'`
1008			`sb $2,0($20)`
1009			`ori $2,$0,'c'`
1010			`sb $2,0($20)`
1011			`sb $23,0($20)`
1012			`sb $21,0($20)`
1013
1014			`#a: AND`
1015			`ori $2,$0,'a'`
1016			`sb $2,0($20)`
1017			`ori $2,$0,0x0741`
1018			`ori $3,$0,0x60f3`
1019			`and $4,$2,$3`
1020			`sb $4,0($20)`
1021			`sb $23,0($20)`
1022			`sb $21,0($20)`
1023
1024			`#b: ANDI`
1025			`ori $2,$0,'b'`
1026			`sb $2,0($20)`
1027			`ori $2,$0,0x0741`
1028			`andi $4,$2,0x60f3`
1029			`sb $4,0($20)`
1030			`sb $23,0($20)`
1031			`sb $21,0($20)`
1032
1033			`#c: LUI`
1034			`ori $2,$0,'c'`
1035			`sb $2,0($20)`
1036			`lui $2,0x41`
1037			`srl $3,$2,16`
1038			`sb $3,0($20)`
1039			`sb $23,0($20)`
1040			`sb $21,0($20)`
1041
1042			`#d: NOR`
1043			`ori $2,$0,'d'`
1044			`sb $2,0($20)`
1045			`li $2,0xf0fff08e`
1046			`li $3,0x0f0f0f30`
1047			`nor $4,$2,$3`
1048			`sb $4,0($20)`
1049			`sb $23,0($20)`
1050			`sb $21,0($20)`
1051
1052			`#e: OR`
1053			`ori $2,$0,'e'`
1054			`sb $2,0($20)`
1055			`ori $2,$0,0x40`
1056			`ori $3,$0,0x01`
1057			`or $4,$2,$3`
1058			`sb $4,0($20)`
1059			`sb $23,0($20)`
1060			`sb $21,0($20)`
1061
1062			`#f: ORI`
1063			`ori $2,$0,'f'`
1064			`sb $2,0($20)`
1065			`ori $2,$0,0x40`
1066			`ori $4,$2,0x01`
1067			`sb $4,0($20)`
1068			`sb $23,0($20)`
1069			`sb $21,0($20)`
1070
1071			`#g: XOR`
1072			`ori $2,$0,'g'`
1073			`sb $2,0($20)`
1074			`ori $2,$0,0xf043`
1075			`ori $3,$0,0xf002`
1076			`xor $4,$2,$3`
1077			`sb $4,0($20)`
1078			`sb $23,0($20)`
1079			`sb $21,0($20)`
1080
1081			`#h: XORI`
1082			`ori $2,$0,'h'`
1083			`sb $2,0($20)`
1084			`ori $2,$0,0xf043`
1085			`xor $4,$2,0xf002`
1086			`sb $4,0($20)`
1087			`sb $23,0($20)`
1088			`sb $21,0($20)`
1089
1090
1091			`######################################`
1092			`#Move Instructions`
1093			`######################################`
1094			`MoveTest:`
1095			`ori $2,$0,'M'`
1096			`sb $2,0($20)`
1097			`ori $2,$0,'o'`
1098			`sb $2,0($20)`
1099			`ori $2,$0,'v'`
1100			`sb $2,0($20)`
1101			`ori $2,$0,'e'`
1102			`sb $2,0($20)`
1103			`sb $23,0($20)`
1104			`sb $21,0($20)`
1105
1106	25	ja_rd	`# HI and LO are only implemented if the mul/div block is`
1107			`.ifgt (TEST_DIV + TEST_MUL)`
1108	2	ja_rd	`#a: MFHI`
1109			`ori $2,$0,'a'`
1110			`sb $2,0($20)`
1111			`ori $2,$0,65`
1112			`mthi $2`
1113			`mfhi $3`
1114			`sb $3,0($20)`
1115			`sb $23,0($20)`
1116			`sb $21,0($20)`
1117
1118			`#b: MFLO`
1119			`ori $2,$0,'b'`
1120			`sb $2,0($20)`
1121			`ori $2,$0,65`
1122			`mtlo $2`
1123			`mflo $3`
1124			`sb $3,0($20)`
1125			`sb $23,0($20)`
1126			`sb $21,0($20)`
1127
1128			`#c: MTHI`
1129			`ori $2,$0,'c'`
1130			`sb $2,0($20)`
1131			`ori $2,$0,65`
1132			`mthi $2`
1133			`mfhi $3`
1134			`sb $3,0($20)`
1135			`sb $23,0($20)`
1136			`sb $21,0($20)`
1137
1138			`#d: MTLO`
1139			`ori $2,$0,'d'`
1140			`sb $2,0($20)`
1141	66	ja_rd	`ori $2,$0,66 # use 'B' instead of 'A' to cach change in HI and LO`
1142	2	ja_rd	`mtlo $2`
1143			`mflo $3`
1144			`sb $3,0($20)`
1145			`sb $23,0($20)`
1146			`sb $21,0($20)`
1147	25	ja_rd	`.endif`
1148	2	ja_rd
1149			`######################################`
1150			`#Shift Instructions`
1151			`######################################`
1152			`ShiftTest:`
1153			`ori $2,$0,'S'`
1154			`sb $2,0($20)`
1155			`ori $2,$0,'h'`
1156			`sb $2,0($20)`
1157			`ori $2,$0,'i'`
1158			`sb $2,0($20)`
1159			`ori $2,$0,'f'`
1160			`sb $2,0($20)`
1161			`ori $2,$0,'t'`
1162			`sb $2,0($20)`
1163			`sb $23,0($20)`
1164			`sb $21,0($20)`
1165
1166			`#a: SLL`
1167			`ori $2,$0,'a'`
1168			`sb $2,0($20)`
1169			`li $2,0x40414243`
1170			`sll $3,$2,8`
1171			`srl $3,$3,24`
1172			`sb $3,0($20)`
1173			`sb $23,0($20)`
1174			`sb $21,0($20)`
1175
1176			`#b: SLLV`
1177			`ori $2,$0,'b'`
1178			`sb $2,0($20)`
1179			`li $2,0x40414243`
1180			`ori $3,$0,8`
1181			`sllv $3,$2,$3`
1182			`srl $3,$3,24`
1183			`sb $3,0($20)`
1184			`sb $23,0($20)`
1185			`sb $21,0($20)`
1186
1187			`#c: SRA`
1188			`ori $2,$0,'c'`
1189			`sb $2,0($20)`
1190			`li $2,0x40414243`
1191			`sra $3,$2,16`
1192			`sb $3,0($20)`
1193			`li $2,0x84000000`
1194			`sra $3,$2,25`
1195			`sub $3,$3,0x80`
1196			`sb $3,0($20)`
1197			`sb $23,0($20)`
1198			`sb $21,0($20)`
1199
1200			`#d: SRAV`
1201			`ori $2,$0,'d'`
1202			`sb $2,0($20)`
1203			`li $2,0x40414243`
1204			`ori $3,$0,16`
1205			`srav $3,$2,$3`
1206			`sb $3,0($20)`
1207			`ori $3,$0,25`
1208			`li $2,0x84000000`
1209			`srav $3,$2,$3`
1210			`sub $3,$3,0x80`
1211			`sb $3,0($20)`
1212			`sb $23,0($20)`
1213			`sb $21,0($20)`
1214
1215			`#e: SRL`
1216			`ori $2,$0,'e'`
1217			`sb $2,0($20)`
1218			`li $2,0x40414243`
1219			`srl $3,$2,16`
1220			`sb $3,0($20)`
1221			`li $2,0x84000000`
1222			`srl $3,$2,25`
1223			`sb $3,0($20)`
1224			`sb $23,0($20)`
1225			`sb $21,0($20)`
1226
1227			`#f: SRLV`
1228			`ori $2,$0,'f'`
1229			`sb $2,0($20)`
1230			`li $2,0x40414243`
1231			`ori $3,$0,16`
1232			`srlv $4,$2,$3`
1233			`sb $4,0($20)`
1234			`ori $3,$0,25`
1235			`li $2,0x84000000`
1236			`srlv $3,$2,$3`
1237			`sb $3,0($20)`
1238			`sb $23,0($20)`
1239			`sb $21,0($20)`
1240
1241	165	ja_rd	`######################################`
1242			`#Emulated MIPS32r2 Instructions`
1243			`######################################`
1244			`.ifgt EMU_MIPS32`
1245			`ori $2,$0,'M'`
1246			`sb $2,0($20)`
1247			`ori $2,$0,'i'`
1248			`sb $2,0($20)`
1249			`ori $2,$0,'p'`
1250			`sb $2,0($20)`
1251			`ori $2,$0,'s'`
1252			`sb $2,0($20)`
1253			`ori $2,$0,'3'`
1254			`sb $2,0($20)`
1255			`ori $2,$0,'2'`
1256			`sb $2,0($20)`
1257			`ori $2,$0,'r'`
1258			`sb $2,0($20)`
1259			`ori $2,$0,'2'`
1260			`sb $2,0($20)`
1261			`sb $23,0($20)`
1262			`sb $21,0($20)`
1263
1264			`#-- EXT ---------------------------`
1265			`ori $a1,$zero,'a'`
1266			`sb $a1,0($20)`
1267			`li $a0,0x01234567`
1268			`ext $a1,$a0,12,8`
1269			`addi $a1,$a1,'A' - 0x34`
1270			`sb $a1,0($20)`
1271			`ext $a1,$a0,0,8`
1272			`addi $a1,$a1,'B' - 0x67`
1273			`sb $a1,0($20)`
1274			`ext $a1,$a0,0,4`
1275			`addi $a1,$a1,'C' - 0x7`
1276			`sb $a1,0($20)`
1277			`ext $a2,$a0,20,12`
1278			`addi $a2,$a2,'D' - 0x012`
1279			`sb $a2,0($20)`
1280
1281			`sb $23,0($20)`
1282			`sb $21,0($20)`
1283
1284			`#-- INS ---------------------------`
1285			`ori $a1,$zero,'b'`
1286			`sb $a1,0($20)`
1287			`li $a0,0x01234567`
1288			`ori $a2,$zero,0xc35a`
1289			`test_ins_1:`
1290			`move $a1,$a0`
1291			`ins $a1,$a2,0,8`
1292			`li $a3,0x0123455a`
1293			`bne $a3,$a1,test_ins_2`
1294			`ori $a1,$zero,'A'`
1295			`sb $a1,0($20)`
1296			`test_ins_2:`
1297			`move $a1,$a0`
1298			`ins $a1,$a2,4,8`
1299			`li $a3,0x012345a7`
1300			`bne $a3,$a1,test_ins_3`
1301			`ori $a1,$zero,'B'`
1302			`sb $a1,0($20)`
1303			`test_ins_3:`
1304			`move $a1,$a0`
1305			`ins $a1,$a2,24,8`
1306			`li $a3,0x5a234567`
1307			`bne $a3,$a1,test_ins_4`
1308			`ori $a1,$zero,'C'`
1309			`sb $a1,0($20)`
1310			`test_ins_4:`
1311			`move $a1,$a0`
1312			`ins $a1,$a2,30,2`
1313			`li $a3,0x81234567`
1314			`bne $a3,$a1,test_ins_5`
1315			`ori $a1,$zero,'D'`
1316			`sb $a1,0($20)`
1317			`test_ins_5:`
1318			`sb $23,0($20)`
1319			`sb $21,0($20)`
1320
1321			`#-- CLZ ---------------------------`
1322			`ori $a1,$zero,'c'`
1323			`sb $a1,0($20)`
1324
1325			`li $a1,0x00080000`
1326			`clz $a1,$a1`
1327			`addiu $a1,$a1,'A'-12`
1328			`sb $a1,0($20)`
1329
1330			`li $a1,0x40000000`
1331			`clz $a1,$a1`
1332			`addiu $a1,$a1,'B'-1`
1333			`sb $a1,0($20)`
1334
1335			`clz $a1,$zero`
1336			`addiu $a1,$a1,'C'-32`
1337			`sb $a1,0($20)`
1338
1339			`li $k1,0x80000000`
1340			`clz $k0,$k1`
1341			`addiu $a1,$k0,'D'-0`
1342			`sb $a1,0($20)`
1343
1344			`sb $23,0($20)`
1345			`sb $21,0($20)`
1346
1347			`#-- CLO ---------------------------`
1348			`ori $a1,$zero,'d'`
1349			`sb $a1,0($20)`
1350
1351			`li $a1,0xfff7ffff`
1352			`clo $a1,$a1`
1353			`addiu $a1,$a1,'A'-12`
1354			`sb $a1,0($20)`
1355
1356			`li $a1,0xbfffffff`
1357			`clo $a1,$a1`
1358			`addiu $a1,$a1,'B'-1`
1359			`sb $a1,0($20)`
1360
1361			`li $a1,0xffffffff`
1362			`clo $a1,$a1`
1363			`addiu $a1,$a1,'C'-32`
1364			`sb $a1,0($20)`
1365
1366			`li $k1,0x7fffffff`
1367			`clo $k0,$k1`
1368			`addiu $a1,$k0,'D'-0`
1369			`sb $a1,0($20)`
1370
1371			`sb $23,0($20)`
1372			`sb $21,0($20)`
1373			`.endif`
1374
1375			`# Print 'Done'; the rest of the tests are for log matching only`
1376	2	ja_rd	`ori $2,$0,'D'`
1377			`sb $2,0($20)`
1378			`ori $2,$0,'o'`
1379			`sb $2,0($20)`
1380			`ori $2,$0,'n'`
1381			`sb $2,0($20)`
1382			`ori $2,$0,'e'`
1383			`sb $2,0($20)`
1384			`sb $23,0($20)`
1385			`sb $21,0($20)`
1386	38	ja_rd
1387	165	ja_rd
1388	90	ja_rd	`# These tests are to be evaluated by matching logs with the software`
1389			`# simulator. There is no need to perform any actual tests here, if there is`
1390			`# any error it will show up as a mismatch in the logs.`
1391
1392			`#-- Arithmetic --------------------------------------------------`
1393			`ori $s0,$zero,0xa5a5`
1394			`ori $s1,$zero,15`
1395			`ori $s2,$zero,1`
1396			`li $s3,-1`
1397			`li $s4,-1000`
1398			`li $s5,0x80000000`
1399			`li $s6,0x7fffffff`
1400
1401			`#-- ADD ---------------------------`
1402			`move $t0,$s0 # P + P = P`
1403			`move $t1,$s1`
1404			`add $t0,$t1,$s1`
1405			`move $t0,$s0 # P + N = P`
1406			`move $t1,$s1`
1407			`add $t0,$t1,$s3`
1408			`move $t0,$s0 # P + N = N`
1409			`move $t1,$s1`
1410			`add $t0,$t1,$s4`
1411			`move $t0,$s0 # P + P = N (overflow)`
1412			`move $t1,$s6`
1413			`add $t0,$t1,$s6`
1414			`move $t0,$s0 # N + N = P (overflow)`
1415			`move $t1,$s5`
1416			`add $t0,$t1,$s5`
1417
1418			`#-- ADDI --------------------------`
1419			`move $t0,$s0 # N + N = P (overflow)`
1420			`move $t1,$s5`
1421			`addi $t0,$t1,-1`
1422			`move $t0,$s0 # N + P = N`
1423			`move $t1,$s5`
1424			`addi $t0,$t1,15`
1425			`move $t0,$s0 # N + P = P`
1426			`move $t1,$s3`
1427			`addi $t0,$t1,2`
1428			`move $t0,$s0 # P + P = P`
1429			`move $t1,$s1`
1430			`addi $t0,$t1,2`
1431			`move $t0,$s0 # P + P = N (overflow)`
1432			`move $t1,$s6`
1433			`addi $t0,$t1,2`
1434
1435			`#-- ADDIU -------------------------`
1436			`move $t0,$s0 # N + N = P (overflow)`
1437			`move $t1,$s5`
1438			`addiu $t0,$t1,-1`
1439			`move $t0,$s0 # N + P = N`
1440			`move $t1,$s5`
1441			`addiu $t0,$t1,15`
1442			`move $t0,$s0 # N + P = P`
1443			`move $t1,$s3`
1444			`addiu $t0,$t1,2`
1445			`move $t0,$s0 # P + P = P`
1446			`move $t1,$s1`
1447			`addiu $t0,$t1,2`
1448			`move $t0,$s0 # P + P = N (overflow)`
1449			`move $t1,$s6`
1450			`addiu $t0,$t1,2`
1451
1452			`#-- ADDU --------------------------`
1453			`move $t0,$s0 # P + P = P`
1454			`move $t1,$s1`
1455			`addu $t0,$t1,$s1`
1456			`move $t0,$s0 # P + N = P`
1457			`move $t1,$s1`
1458			`addu $t0,$t1,$s3`
1459			`move $t0,$s0 # P + N = N`
1460			`move $t1,$s1`
1461			`addu $t0,$t1,$s4`
1462			`move $t0,$s0 # P + P = N (overflow)`
1463			`move $t1,$s6`
1464			`addu $t0,$t1,$s6`
1465			`move $t0,$s0 # N + N = P (overflow)`
1466			`move $t1,$s5`
1467			`addu $t0,$t1,$s5`
1468
1469			`#-- SUB ---------------------------`
1470			`move $t0,$s0 # P - P = P`
1471			`move $t1,$s2`
1472			`sub $t0,$t1,$s1`
1473			`move $t0,$s0 # P - N = P`
1474			`move $t1,$s1`
1475			`add $t0,$t1,$s3`
1476			`move $t0,$s0 # P + N = N`
1477			`move $t1,$s1`
1478			`add $t0,$t1,$s4`
1479			`move $t0,$s0 # P + P = N (overflow)`
1480			`move $t1,$s6`
1481			`add $t0,$t1,$s6`
1482			`move $t0,$s0 # N + N = P (overflow)`
1483			`move $t1,$s5`
1484			`add $t0,$t1,$s5`
1485
1486			`# SLT, SLTI, SLTIU`
1487			`ori $a2,$zero,0xa5a5`
1488			`ori $a0,$zero,15`
1489			`ori $a1,$zero,1`
1490			`move $v0,$a3`
1491			`slt $v0,$a0,$a1`
1492			`move $v0,$a3`
1493			`slt $v0,$a1,$a0`
1494			`move $v0,$a3`
1495			`slti $v0,$a0,1`
1496			`move $v0,$a3`
1497			`slti $v0,$a1,15`
1498			`move $v0,$a3`
1499			`sltiu $v0,$a0,1`
1500			`move $v0,$a3`
1501			`sltiu $v0,$a1,15`
1502			`li $a1,0xa5a5`
1503			`li $a0,1029`
1504			`addiu $a0,$a0,-2000`
1505			`sltu $a1,$a0,1000`
1506
1507
1508			`#-- Relative jumps ----------------------------------------------`
1509			`li $s0,0x7fffffff`
1510			`ori $s1,1000`
1511			`ori $s1,15`
1512			`ori $s1,2`
1513			`li $s4,0x80000000`
1514			`li $s5,-1001`
1515			`li $s6,-16`
1516			`li $s7,-3`
1517
1518			`bgtz $s1,test_b0`
1519			`nop`
1520			`ori $v0,0x5500`
1521			`test_b0:`
1522			`bgtz $s7,test_b1`
1523			`nop`
1524			`ori $v0,0x5501`
1525			`test_b1:`
1526			`bgtz $s0,test_b2`
1527			`nop`
1528			`ori $v0,0x5502`
1529			`test_b2:`
1530			`bgtz $s4,test_b3`
1531			`nop`
1532			`ori $v0,0x5503`
1533			`test_b3:`
1534			`bgez $s1,test_b4`
1535			`nop`
1536			`ori $v0,0x5500`
1537			`test_b4:`
1538			`bgez $s7,test_b5`
1539			`nop`
1540			`ori $v0,0x5501`
1541			`test_b5:`
1542			`bgez $s0,test_b6`
1543			`nop`
1544			`ori $v0,0x5502`
1545			`test_b6:`
1546			`bgez $s4,test_b7`
1547			`nop`
1548			`ori $v0,0x5503`
1549			`test_b7:`
1550			`bltz $s1,test_b8`
1551			`nop`
1552			`ori $v0,0x5500`
1553			`test_b8:`
1554			`bltz $s7,test_b9`
1555			`nop`
1556			`ori $v0,0x5501`
1557			`test_b9:`
1558			`bltz $s0,test_b10`
1559			`nop`
1560			`ori $v0,0x5502`
1561			`test_b10:`
1562			`bltz $s4,test_b11`
1563			`nop`
1564			`ori $v0,0x5503`
1565			`test_b11:`
1566
1567	2	ja_rd	`$DONE:`
1568			`j $DONE`
1569			`nop`
1570	148	ja_rd
1571			`# void setup_cache(void) -- invalidates all I- and D-Cache lines (uses no RAM)`
1572			`setup_cache:`
1573	152	ja_rd	`li $a0,0x00010002 # Enable I-cache line invalidation`
1574	148	ja_rd	`mtc0 $a0,$12`
1575
1576			`# In order to invalidate a I-Cache line we have to write its tag number to`
1577			`# any address while bits CP0[12].17:16=01. The write will be executed as a`
1578			`# regular write too, as a side effect, so we need to choose a harmless`
1579			`# target address. The BSS will do -- it will be cleared later.`
1580			`# We'll cover all ICACHE_NUM_LINES lines no matter what the starting`
1581			`# address is, anyway.`
1582
1583			`la $a0,__bss_start`
1584			`li $a2,0`
1585			`li $a1,ICACHE_NUM_LINES-1`
1586
1587			`inv_i_cache_loop:`
1588			`sw $a2,0($a0)`
1589			`blt $a2,$a1,inv_i_cache_loop`
1590			`addi $a2,1`
1591
1592			`# Now, the D-Cache is different. To invalidate a D-Cache line you just`
1593			`# read from it (by proper selection of a dummy target address) while bits`
1594			`# CP0[12].17:16=01. The data read is undefined and should be discarded.`
1595
1596			`li $a0,0 # Use any base address that is mapped`
1597			`li $a2,0`
1598			`li $a1,DCACHE_NUM_LINES-1`
1599
1600			`inv_d_cache_loop:`
1601			`lw $zero,0($a0)`
1602			`addi $a0,DCACHE_LINE_SIZE*4`
1603			`blt $a2,$a1,inv_d_cache_loop`
1604			`addi $a2,1`
1605
1606	152	ja_rd	`li $a1,0x00020002 # Leave with cache enabled`
1607	148	ja_rd	`jr $ra`
1608			`mtc0 $a1,$12`
1609	2	ja_rd	`.set reorder`
1610			`.end entry`
1611

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