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[/] [ion/] [trunk/] [src/] [opcodes/] [opcodes.s] - Blame information for rev 25

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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			`# unlike the original Plasma code, this one does not test the test success`
20			`# conditions. instead, it performs the operations to be tested and relies on you`
21			`# 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	2	ja_rd
38	4	ja_rd	`#---------------------------------------------------------------------------`
39
40	2	ja_rd	`.text`
41			`.align 2`
42			`.globl entry`
43			`.ent entry`
44			`entry:`
45			`.set noreorder`
46
47			`la $gp, _gp #initialize stack pointer`
48			`la $4, __bss_start #$4 = .sbss_start`
49			`la $5, _end #$5 = .bss_end`
50			`nop #no stack needed`
51			`nop`
52
53			`b StartTest`
54			`nop #nops required to place ISR at 0x3c`
55			`nop`
56
57			`OS_AsmPatchValue:`
58			`#Code to place at address 0x3c`
59			`lui $26, 0x1000`
60			`ori $26, $26, 0x3c`
61			`jr $26`
62			`nop`
63
64			`.org 0x3c`
65	9	ja_rd	`# FIXME assume exception is trap or break for the time being`
66	2	ja_rd	`InterruptVector: # Address=0x3c`
67			`mfc0 $26,$14 # C0_EPC=14 (Exception PC)`
68	9	ja_rd	`addi $26,$26,4 # skip trap instruction`
69	2	ja_rd	`jr $26`
70			`add $4,$4,5`
71
72			`StartTest:`
73			`mtc0 $0,$12 # disable interrupts`
74			`lui $20,0x2000 # serial port write address`
75			`ori $21,$0,'\n' # <CR> character`
76			`ori $22,$0,'X' # 'X' letter`
77			`ori $23,$0,'\r'`
78			`ori $24,$0,0x0f80 # temp memory`
79
80			`sb $23,0($20)`
81			`sb $21,0($20)`
82			`sb $23,0($20)`
83			`sb $21,0($20)`
84			`sb $23,0($20)`
85			`sb $21,0($20)`
86			`sb $23,0($20)`
87			`sb $21,0($20)`
88
89			`#Patch interrupt vector to 0x1000003c`
90			`la $5, OS_AsmPatchValue`
91			`sub $6,$5,0x1000`
92			`blez $6,NoPatch`
93			`nop`
94			`#lw $6, 0($5)`
95			`#sw $6, 0x3c($0)`
96			`#lw $6, 4($5)`
97			`#sw $6, 0x40($0)`
98			`#lw $6, 8($5)`
99			`#sw $6, 0x44($0)`
100			`#lw $6, 12($5)`
101			`#sw $6, 0x48($0)`
102			`NoPatch:`
103
104			`######################################`
105			`#Arithmetic Instructions`
106			`######################################`
107			`ArthmeticTest:`
108			`ori $2,$0,'A'`
109			`sb $2,0($20)`
110			`ori $2,$0,'r'`
111			`sb $2,0($20)`
112			`ori $2,$0,'i'`
113			`sb $2,0($20)`
114			`ori $2,$0,'t'`
115			`sb $2,0($20)`
116			`ori $2,$0,'h'`
117			`sb $2,0($20)`
118			`sb $23,0($20)`
119			`sb $21,0($20)`
120
121			`#a: ADD`
122			`ori $2,$0,'a'`
123			`sb $2,0($20)`
124			`ori $3,$0,5`
125			`ori $4,$0,60`
126			`add $2,$3,$4`
127			`sb $2,0($20) #A`
128			`sb $23,0($20)`
129			`sb $21,0($20)`
130
131			`#b: ADDI`
132			`ori $2,$0,'b'`
133			`sb $2,0($20)`
134			`ori $4,$0,60`
135			`addi $2,$4,5`
136			`sb $2,0($20) #A`
137			`sb $23,0($20)`
138			`sb $21,0($20)`
139
140			`#c: ADDIU`
141			`ori $2,$0,'c'`
142			`sb $2,0($20)`
143			`ori $4,$0,50`
144			`addiu $5,$4,15`
145			`sb $5,0($20) #A`
146			`sb $23,0($20)`
147			`sb $21,0($20)`
148
149			`#d: ADDU`
150			`ori $2,$0,'d'`
151			`sb $2,0($20)`
152			`ori $3,$0,5`
153			`ori $4,$0,60`
154			`add $2,$3,$4`
155			`sb $2,0($20) #A`
156			`sb $23,0($20)`
157			`sb $21,0($20)`
158
159	4	ja_rd	`# DIV tests, skip conditionally`
160			`.ifgt TEST_DIV`
161	2	ja_rd
162			`#e: DIV`
163			`ori $2,$0,'e'`
164			`sb $2,0($20)`
165			`ori $2,$0,65*117+41`
166			`ori $3,$0,117`
167			`div $2,$3`
168			`nop`
169			`mflo $4`
170			`sb $4,0($20) #A`
171			`mfhi $4`
172			`addi $4,$4,66-41`
173			`sb $4,0($20) #B`
174			`li $2,-67*19`
175			`ori $3,$0,19`
176			`div $2,$3`
177			`nop`
178			`mflo $4`
179			`sub $4,$0,$4`
180			`sb $4,0($20) #C`
181			`ori $2,$0,68*23`
182			`li $3,-23`
183			`div $2,$3`
184			`nop`
185			`mflo $4`
186			`sub $4,$0,$4`
187			`sb $4,0($20) #D`
188			`li $2,-69*13`
189			`li $3,-13`
190			`div $2,$3`
191			`mflo $4`
192			`sb $4,0($20) #E`
193			`sb $23,0($20)`
194			`sb $21,0($20)`
195
196			`#f: DIVU`
197			`ori $2,$0,'f'`
198			`sb $2,0($20)`
199			`ori $2,$0,65*13`
200			`ori $3,$0,13`
201			`divu $2,$3`
202			`nop`
203			`mflo $4`
204			`sb $4,0($20) #A`
205			`sb $23,0($20)`
206			`sb $21,0($20)`
207	4	ja_rd	`.endif`
208	2	ja_rd
209	4	ja_rd	`# MUL tests, skip conditionally`
210			`.ifgt TEST_MUL`
211	2	ja_rd
212			`#g: MULT`
213			`ori $2,$0,'g'`
214			`sb $2,0($20)`
215			`ori $2,$0,5`
216			`ori $3,$0,13`
217			`mult $2,$3`
218			`nop`
219			`mflo $4`
220			`sb $4,0($20) #A`
221			`li $2,-5`
222			`ori $3,$0,13`
223			`mult $2,$3`
224			`mfhi $5`
225			`mflo $4`
226			`sub $4,$0,$4`
227			`addu $4,$4,$5`
228			`addi $4,$4,2`
229			`sb $4,0($20) #B`
230			`ori $2,$0,5`
231			`li $3,-13`
232			`mult $2,$3`
233			`mfhi $5`
234			`mflo $4`
235			`sub $4,$0,$4`
236			`addu $4,$4,$5`
237			`addi $4,$4,3`
238			`sb $4,0($20) #C`
239			`li $2,-5`
240			`li $3,-13`
241			`mult $2,$3`
242			`mfhi $5`
243			`mflo $4`
244			`addu $4,$4,$5`
245			`addi $4,$4,3`
246			`sb $4,0($20) #D`
247			`lui $4,0xfe98`
248			`ori $4,$4,0x62e5`
249			`lui $5,0x6`
250			`ori $5,0x8db8`
251			`mult $4,$5`
252			`mfhi $6`
253			`addiu $7,$6,2356+1+'E' #E`
254			`sb $7,0($20)`
255			`sb $23,0($20)`
256			`sb $21,0($20)`
257
258			`#h: MULTU`
259			`ori $2,$0,'h'`
260			`sb $2,0($20)`
261			`ori $2,$0,5`
262			`ori $3,$0,13`
263			`multu $2,$3`
264			`nop`
265			`mflo $4`
266			`sb $4,0($20) #A`
267			`sb $23,0($20)`
268			`sb $21,0($20)`
269	4	ja_rd	`.endif`
270	2	ja_rd
271			`#i: SLT`
272			`ori $2,$0,'i'`
273			`sb $2,0($20)`
274			`ori $2,$0,10`
275			`ori $3,$0,12`
276			`slt $4,$2,$3`
277			`addi $5,$4,64`
278			`sb $5,0($20) #A`
279			`slt $4,$3,$2`
280			`addi $5,$4,66`
281			`sb $5,0($20) #B`
282			`li $2,0xfffffff0`
283			`slt $4,$2,$3`
284			`addi $5,$4,66`
285			`sb $5,0($20) #C`
286			`slt $4,$3,$2`
287			`addi $5,$4,68`
288			`sb $5,0($20) #D`
289			`li $3,0xffffffff`
290			`slt $4,$2,$3`
291			`addi $5,$4,68`
292			`sb $5,0($20) #E`
293			`slt $4,$3,$2`
294			`addi $5,$4,70`
295			`sb $5,0($20) #F`
296			`sb $23,0($20)`
297			`sb $21,0($20)`
298
299			`#j: SLTI`
300			`ori $2,$0,'j'`
301			`sb $2,0($20)`
302			`ori $2,$0,10`
303			`slti $4,$2,12`
304			`addi $5,$4,64`
305			`sb $5,0($20) #A`
306			`slti $4,$2,8`
307			`addi $5,$4,66`
308			`sb $5,0($20) #B`
309			`sb $23,0($20)`
310			`sb $21,0($20)`
311
312			`#k: SLTIU`
313			`ori $2,$0,'k'`
314			`sb $2,0($20)`
315			`ori $2,$0,10`
316			`sltiu $4,$2,12`
317			`addi $5,$4,64`
318			`sb $5,0($20) #A`
319			`sltiu $4,$2,8`
320			`addi $5,$4,66`
321			`sb $5,0($20) #B`
322			`sb $23,0($20)`
323			`sb $21,0($20)`
324
325			`#l: SLTU`
326			`ori $2,$0,'l'`
327			`sb $2,0($20)`
328			`ori $2,$0,10`
329			`ori $3,$0,12`
330			`slt $4,$2,$3`
331			`addi $5,$4,64`
332			`sb $5,0($20) #A`
333			`slt $4,$3,$2`
334			`addi $5,$4,66`
335			`sb $5,0($20) #B`
336			`sb $23,0($20)`
337			`sb $21,0($20)`
338
339			`#m: SUB`
340			`ori $2,$0,'m'`
341			`sb $2,0($20)`
342			`ori $3,$0,70`
343			`ori $4,$0,5`
344			`sub $2,$3,$4`
345			`sb $2,0($20) #A`
346			`sb $23,0($20)`
347			`sb $21,0($20)`
348
349			`#n: SUBU`
350			`ori $2,$0,'n'`
351			`sb $2,0($20)`
352			`ori $3,$0,70`
353			`ori $4,$0,5`
354			`sub $2,$3,$4`
355			`sb $2,0($20) #A`
356			`sb $23,0($20)`
357			`sb $21,0($20)`
358
359			`######################################`
360			`#Branch and Jump Instructions`
361			`######################################`
362			`BranchTest:`
363			`ori $2,$0,'B'`
364			`sb $2,0($20)`
365			`ori $2,$0,'r'`
366			`sb $2,0($20)`
367			`ori $2,$0,'a'`
368			`sb $2,0($20)`
369			`ori $2,$0,'n'`
370			`sb $2,0($20)`
371			`ori $2,$0,'c'`
372			`sb $2,0($20)`
373			`ori $2,$0,'h'`
374			`sb $2,0($20)`
375			`sb $23,0($20)`
376			`sb $21,0($20)`
377
378			`#a: B`
379			`ori $2,$0,'a'`
380			`sb $2,0($20)`
381			`ori $10,$0,'A'`
382			`ori $11,$0,'B'`
383			`b $B1`
384			`sb $10,0($20)`
385			`sb $22,0($20)`
386			`$B1:`
387			`sb $11,0($20)`
388			`sb $23,0($20)`
389			`sb $21,0($20)`
390
391			`#b: BAL`
392			`ori $2,$0,'b'`
393			`sb $2,0($20)`
394			`ori $10,$0,'A'`
395			`ori $11,$0,'B'`
396			`ori $12,$0,'C'`
397			`ori $13,$0,'D'`
398			`ori $14,$0,'E'`
399			`ori $15,$0,'X'`
400			`bal $BAL1`
401			`sb $10,0($20)`
402			`sb $13,0($20)`
403			`b $BAL2`
404			`sb $14,0($20)`
405			`sb $15,0($20)`
406			`$BAL1:`
407			`sb $11,0($20)`
408			`jr $31`
409			`sb $12,0($20)`
410			`sb $22,0($20)`
411			`$BAL2:`
412			`sb $23,0($20)`
413			`sb $21,0($20)`
414
415			`#c: BEQ`
416			`ori $2,$0,'c'`
417			`sb $2,0($20)`
418			`ori $10,$0,'A'`
419			`ori $11,$0,'B'`
420			`ori $12,$0,'C'`
421			`ori $13,$0,'D'`
422			`ori $2,$0,100`
423			`ori $3,$0,123`
424			`ori $4,$0,123`
425			`beq $2,$3,$BEQ1`
426			`sb $10,0($20)`
427			`sb $11,0($20)`
428			`beq $3,$4,$BEQ1`
429			`sb $12,0($20)`
430			`sb $22,0($20)`
431			`$BEQ1:`
432			`sb $13,0($20)`
433			`sb $23,0($20)`
434			`sb $21,0($20)`
435
436			`#d: BGEZ`
437			`ori $2,$0,'d'`
438			`sb $2,0($20)`
439			`ori $10,$0,'A'`
440			`ori $11,$0,'B'`
441			`ori $12,$0,'C'`
442			`ori $13,$0,'D'`
443			`or $15,$0,'X'`
444			`ori $2,$0,100`
445			`li $3,0xffff1234`
446			`ori $4,$0,123`
447			`bgez $3,$BGEZ1`
448			`sb $10,0($20)`
449			`sb $11,0($20)`
450			`bgez $2,$BGEZ1`
451			`sb $12,0($20)`
452			`sb $22,0($20)`
453			`$BGEZ1:`
454			`bgez $0,$BGEZ2`
455			`nop`
456			`sb $15,0($20)`
457			`$BGEZ2:`
458			`sb $13,0($20)`
459			`sb $23,0($20)`
460			`sb $21,0($20)`
461
462			`#e: BGEZAL`
463			`ori $2,$0,'e'`
464			`sb $2,0($20)`
465			`ori $10,$0,'A'`
466			`ori $11,$0,'B'`
467			`ori $12,$0,'C'`
468			`ori $13,$0,'D'`
469			`ori $14,$0,'E'`
470			`ori $15,$0,'X'`
471			`li $3,0xffff1234`
472			`bgezal $3,$BGEZAL1`
473			`nop`
474			`sb $10,0($20)`
475			`bgezal $0,$BGEZAL1`
476			`nop`
477			`sb $13,0($20)`
478			`b $BGEZAL2`
479			`sb $14,0($20)`
480			`sb $15,0($20)`
481			`$BGEZAL1:`
482			`sb $11,0($20)`
483			`jr $31`
484			`sb $12,0($20)`
485			`sb $22,0($20)`
486			`$BGEZAL2:`
487			`sb $23,0($20)`
488			`sb $21,0($20)`
489
490			`#f: BGTZ`
491			`ori $2,$0,'f'`
492			`sb $2,0($20)`
493			`ori $10,$0,'A'`
494			`ori $11,$0,'B'`
495			`ori $12,$0,'C'`
496			`ori $13,$0,'D'`
497			`ori $2,$0,100`
498			`li $3,0xffff1234`
499			`bgtz $3,$BGTZ1`
500			`sb $10,0($20)`
501			`sb $11,0($20)`
502			`bgtz $2,$BGTZ1`
503			`sb $12,0($20)`
504			`sb $22,0($20)`
505			`$BGTZ1:`
506			`sb $13,0($20)`
507			`sb $23,0($20)`
508			`sb $21,0($20)`
509
510			`#g: BLEZ`
511			`ori $2,$0,'g'`
512			`sb $2,0($20)`
513			`ori $10,$0,'A'`
514			`ori $11,$0,'B'`
515			`ori $12,$0,'C'`
516			`ori $13,$0,'D'`
517			`ori $2,$0,100`
518			`li $3,0xffff1234`
519			`blez $2,$BLEZ1`
520			`sb $10,0($20)`
521			`sb $11,0($20)`
522			`blez $3,$BLEZ1`
523			`sb $12,0($20)`
524			`sb $22,0($20)`
525			`$BLEZ1:`
526			`blez $0,$BLEZ2`
527			`nop`
528			`sb $22,0($20)`
529			`$BLEZ2:`
530			`sb $13,0($20)`
531			`sb $23,0($20)`
532			`sb $21,0($20)`
533
534			`#h: BLTZ`
535			`ori $2,$0,'h'`
536			`sb $2,0($20)`
537			`ori $10,$0,'A'`
538			`ori $11,$0,'B'`
539			`ori $12,$0,'C'`
540			`ori $13,$0,'D'`
541			`ori $14,$0,'E'`
542			`ori $2,$0,100`
543			`li $3,0xffff1234`
544			`ori $4,$0,0`
545			`bltz $2,$BLTZ1`
546			`sb $10,0($20)`
547			`sb $11,0($20)`
548			`bltz $3,$BLTZ1`
549			`sb $12,0($20)`
550			`sb $22,0($20)`
551			`$BLTZ1:`
552			`bltz $4,$BLTZ2`
553			`nop`
554			`sb $13,0($20)`
555			`$BLTZ2:`
556			`sb $14,0($20)`
557			`sb $23,0($20)`
558			`sb $21,0($20)`
559
560			`#i: BLTZAL`
561			`ori $2,$0,'i'`
562			`sb $2,0($20)`
563			`ori $10,$0,'A'`
564			`ori $11,$0,'B'`
565			`ori $12,$0,'C'`
566			`ori $13,$0,'D'`
567			`ori $14,$0,'E'`
568			`ori $15,$0,'X'`
569			`li $3,0xffff1234`
570			`bltzal $0,$BLTZAL1`
571			`nop`
572			`sb $10,0($20)`
573			`bltzal $3,$BLTZAL1`
574			`nop`
575			`sb $13,0($20)`
576			`b $BLTZAL2`
577			`sb $14,0($20)`
578			`sb $15,0($20)`
579			`$BLTZAL1:`
580			`sb $11,0($20)`
581			`jr $31`
582			`sb $12,0($20)`
583			`sb $22,0($20)`
584			`$BLTZAL2:`
585			`sb $23,0($20)`
586			`sb $21,0($20)`
587
588			`#j: BNE`
589			`ori $2,$0,'j'`
590			`sb $2,0($20)`
591			`ori $10,$0,'A'`
592			`ori $11,$0,'B'`
593			`ori $12,$0,'C'`
594			`ori $13,$0,'D'`
595			`ori $2,$0,100`
596			`ori $3,$0,123`
597			`ori $4,$0,123`
598			`bne $3,$4,$BNE1`
599			`sb $10,0($20)`
600			`sb $11,0($20)`
601			`bne $2,$3,$BNE1`
602			`sb $12,0($20)`
603			`sb $22,0($20)`
604			`$BNE1:`
605			`sb $13,0($20)`
606			`sb $23,0($20)`
607			`sb $21,0($20)`
608
609			`#k: J`
610			`ori $2,$0,'k'`
611			`sb $2,0($20)`
612			`ori $10,$0,'A'`
613			`ori $11,$0,'B'`
614			`ori $15,$0,'X'`
615			`j $J1`
616			`sb $10,0($20)`
617			`sb $15,0($20)`
618			`$J1:`
619			`sb $11,0($20)`
620			`sb $23,0($20)`
621			`sb $21,0($20)`
622
623			`#l: JAL`
624			`ori $2,$0,'l'`
625			`sb $2,0($20)`
626			`ori $10,$0,'A'`
627			`ori $11,$0,'B'`
628			`ori $12,$0,'C'`
629			`ori $13,$0,'D'`
630			`ori $14,$0,'E'`
631			`ori $15,$0,'X'`
632			`jal $JAL1`
633			`sb $10,0($20)`
634			`sb $13,0($20)`
635			`b $JAL2`
636			`sb $14,0($20)`
637			`sb $15,0($20)`
638			`$JAL1:`
639			`sb $11,0($20)`
640			`jr $31`
641			`sb $12,0($20)`
642			`sb $22,0($20)`
643			`$JAL2:`
644			`sb $23,0($20)`
645			`sb $21,0($20)`
646
647			`#m: JALR`
648			`ori $2,$0,'m'`
649			`sb $2,0($20)`
650			`ori $10,$0,'A'`
651			`ori $11,$0,'B'`
652			`ori $12,$0,'C'`
653			`ori $13,$0,'D'`
654			`ori $14,$0,'E'`
655			`ori $15,$0,'X'`
656			`la $3,$JALR1`
657			`jalr $3`
658			`sb $10,0($20)`
659			`sb $13,0($20)`
660			`b $JALR2`
661			`sb $14,0($20)`
662			`sb $15,0($20)`
663			`$JALR1:`
664			`sb $11,0($20)`
665			`jr $31`
666			`sb $12,0($20)`
667			`sb $22,0($20)`
668			`$JALR2:`
669			`sb $23,0($20)`
670			`sb $21,0($20)`
671
672			`#n: JR`
673			`ori $2,$0,'n'`
674			`sb $2,0($20)`
675			`ori $10,$0,'A'`
676			`ori $11,$0,'B'`
677			`ori $15,$0,'X'`
678			`la $3,$JR1`
679			`jr $3`
680			`sb $10,0($20)`
681			`sb $15,0($20)`
682			`$JR1:`
683			`sb $11,0($20)`
684			`sb $23,0($20)`
685			`sb $21,0($20)`
686
687			`#o: NOP`
688			`ori $2,$0,'o'`
689			`sb $2,0($20)`
690			`ori $2,$0,65`
691			`nop`
692			`sb $2,0($20)`
693			`sb $23,0($20)`
694			`sb $21,0($20)`
695
696			`# b LoadTest`
697
698	4	ja_rd
699	2	ja_rd	`BreakTest:`
700	4	ja_rd	`.ifgt TEST_BREAK`
701	2	ja_rd	`#p: BREAK`
702	4	ja_rd	`ori $2,$0,'p' # check if it jumps to break address and comes back`
703	2	ja_rd	`sb $2,0($20)`
704			`ori $2,$0,'z'`
705			`ori $4,$0,59`
706			`break 0`
707			`addi $4,$4,1`
708			`sb $4,0($20)`
709	4	ja_rd
710			`break 0 # check if load instruction is aborted (@log)`
711			`lb $2,16($2)`
712
713			`break 0 # check if jump instruction is aborted (@log)`
714	9	ja_rd	`j break_jump_test1`
715	4	ja_rd	`add $4,$4,5`
716
717	9	ja_rd	`break_jump_test1:`
718	4	ja_rd	`add $4,$4,1 # make sure the jump shows in the log (@log)`
719
720	9	ja_rd	`# TODO traps in delay slots not supported yet`
721			`#j break_jump_test2# check if break works in delay slot of jump`
722			`#break 0`
723			`nop`
724			`j break_continue`
725			`nop`
726
727			`break_jump_test2:`
728			`add $4,$4,1`
729
730			`break_continue:`
731	2	ja_rd	`sb $23,0($20)`
732	4	ja_rd	`sb $21,0($20)`
733			`.endif`
734	2	ja_rd
735			`#q: SYSCALL`
736	14	ja_rd	`ori $2,$0,'q' # check if it jumpts to trap vector and comes back`
737	2	ja_rd	`sb $2,0($20)`
738			`ori $4,$0,61`
739			`syscall 0`
740			`addi $4,$4,-1`
741			`sb $4,0($20)`
742	14	ja_rd
743			`syscall 0 # check if load instruction is aborted (@log)`
744			`lb $2,16($2)`
745
746			`syscall 0 # check if jump instruction is aborted (@log)`
747			`j syscall_jump_test1`
748			`add $4,$4,5`
749
750			`syscall_jump_test1:`
751			`add $4,$4,1 # make sure the jump shows in the log (@log)`
752
753			`# TODO traps in delay slots not supported yet`
754			`#j syscall_jump_test2 # check if syscall works in delay slot of jump`
755			`#break 0`
756			`nop`
757			`j syscall_continue`
758			`nop`
759
760			`syscall_jump_test2:`
761			`add $4,$4,1`
762
763			`syscall_continue:`
764	2	ja_rd	`sb $23,0($20)`
765			`sb $21,0($20)`
766
767
768			`######################################`
769			`#Load, Store, and Memory Control Instructions`
770			`######################################`
771			`LoadTest:`
772			`ori $2,$0,'L'`
773			`sb $2,0($20)`
774			`ori $2,$0,'o'`
775			`sb $2,0($20)`
776			`ori $2,$0,'a'`
777			`sb $2,0($20)`
778			`ori $2,$0,'d'`
779			`sb $2,0($20)`
780			`sb $23,0($20)`
781			`sb $21,0($20)`
782
783			`#a: LB`
784			`ori $2,$0,'a'`
785			`sb $2,0($20)`
786			`or $2,$0,$24`
787			`li $3,0x414243fc`
788			`sw $3,16($2) # 16($2) = 0x414243fc`
789			`lb $4,16($2) # $4 = 0x41`
790			`sb $4,0($20) # UART = 0x41`
791			`lb $4,17($2) # $4 = 0x42`
792			`nop`
793			`sb $4,0($20) # UART = 0x42`
794			`lb $4,18($2) # $4 = 0x43`
795			`nop`
796			`sb $4,0($20) # UART = 0x43`
797			`lb $2,19($2) # $2 = 0xffff.fffc`
798			`nop`
799			`sra $3,$2,8 # $3 = 0xffff.ffff`
800			`addi $3,$3,0x45 # $3 = 0x44`
801			`sb $3,0($20) # UART = 0x44`
802			`addi $2,$2,0x49 # $4 = 0x45, overflow`
803			`sb $2,0($20) # UART = 0x45`
804			`sb $23,0($20) # UART = CR`
805			`sb $21,0($20) # UART = LF`
806
807			`#b: LBU`
808			`ori $2,$0,'b'`
809			`sb $2,0($20)`
810			`or $2,$0,$24`
811			`li $3,0x41424344`
812			`sw $3,16($2)`
813			`lb $4,16($2)`
814			`sb $4,0($20)`
815			`lb $4,17($2)`
816			`sb $4,0($20)`
817			`lb $4,18($2)`
818			`sb $4,0($20)`
819			`lb $2,19($2)`
820			`sb $2,0($20)`
821			`sb $23,0($20)`
822			`sb $21,0($20)`
823
824			`#c: LH`
825			`ori $2,$0,'c'`
826			`sb $2,0($20)`
827			`or $2,$0,$24`
828			`li $3,0x00410042`
829			`sw $3,16($2)`
830			`lh $4,16($2)`
831			`sb $4,0($20)`
832			`lh $2,18($2)`
833			`sb $2,0($20)`
834			`sb $23,0($20)`
835			`sb $21,0($20)`
836
837			`#d: LHU`
838			`ori $2,$0,'d'`
839			`sb $2,0($20)`
840			`or $2,$0,$24`
841			`li $3,0x00410042`
842			`sw $3,16($2)`
843			`lh $4,16($2)`
844			`sb $4,0($20)`
845			`lh $2,18($2)`
846			`sb $2,0($20)`
847			`sb $23,0($20)`
848			`sb $21,0($20)`
849
850			`#e: LW`
851			`ori $2,$0,'e'`
852			`sb $2,0($20)`
853			`or $2,$0,$24`
854			`li $3,'A'`
855			`sw $3,16($2)`
856			`ori $3,$0,0`
857			`lw $2,16($2)`
858			`sb $2,0($20)`
859			`sb $23,0($20)`
860			`sb $21,0($20)`
861
862			`.ifgt TEST_UNALIGNED_LOADS`
863			`#f: LWL & LWR`
864			`ori $2,$0,'f'`
865			`sb $2,0($20)`
866			`or $2,$0,$24`
867			`li $3,'A'`
868			`sw $3,16($2)`
869			`ori $3,$0,0`
870			`lwl $2,16($2)`
871			`lwr $2,16($2)`
872			`sb $2,0($20)`
873			`sb $23,0($20)`
874			`sb $21,0($20)`
875			`.endif`
876
877			`#g: SB`
878			`ori $2,$0,'g'`
879			`sb $2,0($20)`
880			`ori $2,$0,'A'`
881			`sb $2,0($20)`
882			`sb $23,0($20)`
883			`sb $21,0($20)`
884
885			`#h: SH`
886			`ori $2,$0,'h'`
887			`sb $2,0($20)`
888			`or $4,$0,$24`
889			`ori $2,$0,0x4142`
890			`sh $2,16($4)`
891			`lb $3,16($4)`
892			`sb $3,0($20)`
893			`lb $2,17($4)`
894			`sb $2,0($20)`
895			`sb $23,0($20)`
896			`sb $21,0($20)`
897
898			`#i: SW`
899			`ori $2,$0,'i'`
900			`sb $2,0($20)`
901			`or $2,$0,$24`
902			`li $3,0x41424344`
903			`sw $3,16($2)`
904			`lb $4,16($2)`
905			`sb $4,0($20)`
906			`lb $4,17($2)`
907			`sb $4,0($20)`
908			`lb $4,18($2)`
909			`sb $4,0($20)`
910			`lb $2,19($2)`
911			`sb $2,0($20)`
912			`sb $23,0($20)`
913			`sb $21,0($20)`
914
915			`.ifgt TEST_UNALIGNED_STORES`
916			`#j: SWL & SWR`
917			`ori $2,$0,'j'`
918			`sb $2,0($20)`
919			`or $2,$0,$24`
920			`li $3,0x41424344`
921			`swl $3,16($2)`
922			`swr $3,16($2)`
923			`lb $4,16($2)`
924			`sb $4,0($20)`
925			`lb $4,17($2)`
926			`sb $4,0($20)`
927			`lb $4,18($2)`
928			`sb $4,0($20)`
929			`lb $2,19($2)`
930			`sb $2,0($20)`
931			`sb $23,0($20)`
932			`sb $21,0($20)`
933			`.endif`
934
935			`######################################`
936			`#Logical Instructions`
937			`######################################`
938			`LogicalTest:`
939			`ori $2,$0,'L'`
940			`sb $2,0($20)`
941			`ori $2,$0,'o'`
942			`sb $2,0($20)`
943			`ori $2,$0,'g'`
944			`sb $2,0($20)`
945			`ori $2,$0,'i'`
946			`sb $2,0($20)`
947			`ori $2,$0,'c'`
948			`sb $2,0($20)`
949			`sb $23,0($20)`
950			`sb $21,0($20)`
951
952			`#a: AND`
953			`ori $2,$0,'a'`
954			`sb $2,0($20)`
955			`ori $2,$0,0x0741`
956			`ori $3,$0,0x60f3`
957			`and $4,$2,$3`
958			`sb $4,0($20)`
959			`sb $23,0($20)`
960			`sb $21,0($20)`
961
962			`#b: ANDI`
963			`ori $2,$0,'b'`
964			`sb $2,0($20)`
965			`ori $2,$0,0x0741`
966			`andi $4,$2,0x60f3`
967			`sb $4,0($20)`
968			`sb $23,0($20)`
969			`sb $21,0($20)`
970
971			`#c: LUI`
972			`ori $2,$0,'c'`
973			`sb $2,0($20)`
974			`lui $2,0x41`
975			`srl $3,$2,16`
976			`sb $3,0($20)`
977			`sb $23,0($20)`
978			`sb $21,0($20)`
979
980			`#d: NOR`
981			`ori $2,$0,'d'`
982			`sb $2,0($20)`
983			`li $2,0xf0fff08e`
984			`li $3,0x0f0f0f30`
985			`nor $4,$2,$3`
986			`sb $4,0($20)`
987			`sb $23,0($20)`
988			`sb $21,0($20)`
989
990			`#e: OR`
991			`ori $2,$0,'e'`
992			`sb $2,0($20)`
993			`ori $2,$0,0x40`
994			`ori $3,$0,0x01`
995			`or $4,$2,$3`
996			`sb $4,0($20)`
997			`sb $23,0($20)`
998			`sb $21,0($20)`
999
1000			`#f: ORI`
1001			`ori $2,$0,'f'`
1002			`sb $2,0($20)`
1003			`ori $2,$0,0x40`
1004			`ori $4,$2,0x01`
1005			`sb $4,0($20)`
1006			`sb $23,0($20)`
1007			`sb $21,0($20)`
1008
1009			`#g: XOR`
1010			`ori $2,$0,'g'`
1011			`sb $2,0($20)`
1012			`ori $2,$0,0xf043`
1013			`ori $3,$0,0xf002`
1014			`xor $4,$2,$3`
1015			`sb $4,0($20)`
1016			`sb $23,0($20)`
1017			`sb $21,0($20)`
1018
1019			`#h: XORI`
1020			`ori $2,$0,'h'`
1021			`sb $2,0($20)`
1022			`ori $2,$0,0xf043`
1023			`xor $4,$2,0xf002`
1024			`sb $4,0($20)`
1025			`sb $23,0($20)`
1026			`sb $21,0($20)`
1027
1028
1029			`######################################`
1030			`#Move Instructions`
1031			`######################################`
1032			`MoveTest:`
1033			`ori $2,$0,'M'`
1034			`sb $2,0($20)`
1035			`ori $2,$0,'o'`
1036			`sb $2,0($20)`
1037			`ori $2,$0,'v'`
1038			`sb $2,0($20)`
1039			`ori $2,$0,'e'`
1040			`sb $2,0($20)`
1041			`sb $23,0($20)`
1042			`sb $21,0($20)`
1043
1044	25	ja_rd	`# HI and LO are only implemented if the mul/div block is`
1045			`.ifgt (TEST_DIV + TEST_MUL)`
1046	2	ja_rd	`#a: MFHI`
1047			`ori $2,$0,'a'`
1048			`sb $2,0($20)`
1049			`ori $2,$0,65`
1050			`mthi $2`
1051			`mfhi $3`
1052			`sb $3,0($20)`
1053			`sb $23,0($20)`
1054			`sb $21,0($20)`
1055
1056			`#b: MFLO`
1057			`ori $2,$0,'b'`
1058			`sb $2,0($20)`
1059			`ori $2,$0,65`
1060			`mtlo $2`
1061			`mflo $3`
1062			`sb $3,0($20)`
1063			`sb $23,0($20)`
1064			`sb $21,0($20)`
1065
1066			`#c: MTHI`
1067			`ori $2,$0,'c'`
1068			`sb $2,0($20)`
1069			`ori $2,$0,65`
1070			`mthi $2`
1071			`mfhi $3`
1072			`sb $3,0($20)`
1073			`sb $23,0($20)`
1074			`sb $21,0($20)`
1075
1076			`#d: MTLO`
1077			`ori $2,$0,'d'`
1078			`sb $2,0($20)`
1079			`ori $2,$0,65`
1080			`mtlo $2`
1081			`mflo $3`
1082			`sb $3,0($20)`
1083			`sb $23,0($20)`
1084			`sb $21,0($20)`
1085	25	ja_rd	`.endif`
1086	2	ja_rd
1087			`######################################`
1088			`#Shift Instructions`
1089			`######################################`
1090			`ShiftTest:`
1091			`ori $2,$0,'S'`
1092			`sb $2,0($20)`
1093			`ori $2,$0,'h'`
1094			`sb $2,0($20)`
1095			`ori $2,$0,'i'`
1096			`sb $2,0($20)`
1097			`ori $2,$0,'f'`
1098			`sb $2,0($20)`
1099			`ori $2,$0,'t'`
1100			`sb $2,0($20)`
1101			`sb $23,0($20)`
1102			`sb $21,0($20)`
1103
1104			`#a: SLL`
1105			`ori $2,$0,'a'`
1106			`sb $2,0($20)`
1107			`li $2,0x40414243`
1108			`sll $3,$2,8`
1109			`srl $3,$3,24`
1110			`sb $3,0($20)`
1111			`sb $23,0($20)`
1112			`sb $21,0($20)`
1113
1114			`#b: SLLV`
1115			`ori $2,$0,'b'`
1116			`sb $2,0($20)`
1117			`li $2,0x40414243`
1118			`ori $3,$0,8`
1119			`sllv $3,$2,$3`
1120			`srl $3,$3,24`
1121			`sb $3,0($20)`
1122			`sb $23,0($20)`
1123			`sb $21,0($20)`
1124
1125			`#c: SRA`
1126			`ori $2,$0,'c'`
1127			`sb $2,0($20)`
1128			`li $2,0x40414243`
1129			`sra $3,$2,16`
1130			`sb $3,0($20)`
1131			`li $2,0x84000000`
1132			`sra $3,$2,25`
1133			`sub $3,$3,0x80`
1134			`sb $3,0($20)`
1135			`sb $23,0($20)`
1136			`sb $21,0($20)`
1137
1138			`#d: SRAV`
1139			`ori $2,$0,'d'`
1140			`sb $2,0($20)`
1141			`li $2,0x40414243`
1142			`ori $3,$0,16`
1143			`srav $3,$2,$3`
1144			`sb $3,0($20)`
1145			`ori $3,$0,25`
1146			`li $2,0x84000000`
1147			`srav $3,$2,$3`
1148			`sub $3,$3,0x80`
1149			`sb $3,0($20)`
1150			`sb $23,0($20)`
1151			`sb $21,0($20)`
1152
1153			`#e: SRL`
1154			`ori $2,$0,'e'`
1155			`sb $2,0($20)`
1156			`li $2,0x40414243`
1157			`srl $3,$2,16`
1158			`sb $3,0($20)`
1159			`li $2,0x84000000`
1160			`srl $3,$2,25`
1161			`sb $3,0($20)`
1162			`sb $23,0($20)`
1163			`sb $21,0($20)`
1164
1165			`#f: SRLV`
1166			`ori $2,$0,'f'`
1167			`sb $2,0($20)`
1168			`li $2,0x40414243`
1169			`ori $3,$0,16`
1170			`srlv $4,$2,$3`
1171			`sb $4,0($20)`
1172			`ori $3,$0,25`
1173			`li $2,0x84000000`
1174			`srlv $3,$2,$3`
1175			`sb $3,0($20)`
1176			`sb $23,0($20)`
1177			`sb $21,0($20)`
1178
1179
1180			`ori $2,$0,'D'`
1181			`sb $2,0($20)`
1182			`ori $2,$0,'o'`
1183			`sb $2,0($20)`
1184			`ori $2,$0,'n'`
1185			`sb $2,0($20)`
1186			`ori $2,$0,'e'`
1187			`sb $2,0($20)`
1188			`sb $23,0($20)`
1189			`sb $21,0($20)`
1190
1191
1192			`$DONE:`
1193			`j $DONE`
1194			`nop`
1195
1196			`.set reorder`
1197			`.end entry`
1198

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