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[/] [eco32/] [trunk/] [hwtests/] [memtest2/] [memtest2.s] - Blame information for rev 27

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;
; memtest2.s -- memory test
;
 
; $2 temporary
; $3 tbl address
; $4 mem address
; $5 tbl count
; $6 mem count
; $7 error
; $8 I/O base
; $9 value read
; $10 reference value
 
        .set    mem_base,0xC0000000
        .set    mem_size,1024*1024
        .set    io_base,0xF0300000
 
        ;
        ; write memory
        ;
write:
        add     $4,$0,mem_base
        add     $6,$0,mem_size
        add     $3,$0,tbl
        add     $5,$0,257
wrloop:
        ldbu    $2,$3,0
        stb     $2,$4,0
        add     $3,$3,1
        sub     $5,$5,1
        bne     $5,$0,wrloop1
        add     $3,$0,tbl
        add     $5,$0,257
wrloop1:
        add     $4,$4,1
        sub     $6,$6,1
        bne     $6,$0,wrloop
        ;
        ; read memory
        ;
read:
        add     $4,$0,mem_base
        add     $6,$0,mem_size
        add     $3,$0,tbl
        add     $5,$0,257
        add     $7,$0,0
rdloop:
        ; always check byte
byte:
        ldbu    $9,$4,0
        ldbu    $10,$3,0
        beq     $9,$10,byteok
        add     $7,$0,1
byteok:
        ; possibly check halfword
half:
        and     $2,$4,1
        bne     $2,$0,halfok
        ldhu    $9,$4,0
        ldbu    $10,$3,0
        jal     shft8
        ldbu    $2,$3,1
        or      $10,$10,$2
        beq     $9,$10,halfok
        add     $7,$0,1
halfok:
        ; possibly check word
word:
        and     $2,$4,3
        bne     $2,$0,wordok
        ldw     $9,$4,0
        ldbu    $10,$3,0
        jal     shft8
        ldbu    $2,$3,1
        or      $10,$10,$2
        jal     shft8
        ldbu    $2,$3,2
        or      $10,$10,$2
        jal     shft8
        ldbu    $2,$3,3
        or      $10,$10,$2
        beq     $9,$10,wordok
        add     $7,$0,1
wordok:
        ; next address
        add     $3,$3,1
        sub     $5,$5,1
        bne     $5,$0,rdloop1
        add     $3,$0,tbl
        add     $5,$0,257
rdloop1:
        add     $4,$4,1
        sub     $6,$6,1
        bne     $6,$0,rdloop
        ;
        ; show result
        ;
        bne     $7,$0,error
ok:
        add     $7,$0,'.'
        jal     out
        j       halt
error:
        add     $7,$0,'?'
        jal     out
        j       halt
        ;
        ; finally, halt
        ;
halt:
        j       halt
 
shft8:
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        add     $10,$10,$10
        jr      $31
 
out:
        add     $8,$0,io_base
out1:
        ldw     $9,$8,8
        and     $9,$9,1
        beq     $9,$0,out1
        stw     $7,$8,12
        jr      $31
 
tbl:
        .byte   0x45,0x23,0x98,0x48,0xDC,0x5C,0x94,0x58
        .byte   0x1F,0x7C,0x58,0xD7,0x41,0x1E,0xA9,0xE1
        .byte   0x00,0x62,0x08,0x27,0x23,0xE9,0xCD,0x43
        .byte   0x0F,0x25,0xF9,0x72,0xC2,0xD7,0xC4,0x07
        .byte   0xFB,0x5D,0x50,0xD7,0xBA,0xE4,0x30,0xD9
        .byte   0x61,0x89,0xB1,0xA3,0xA8,0x5A,0x84,0xA8
        .byte   0xBD,0x8C,0xD0,0xE0,0x76,0x9E,0x24,0x86
        .byte   0xC4,0x1D,0xF8,0x86,0xF5,0xBD,0x8D,0xF0
        .byte   0x1A,0xDD,0xC8,0xD4,0xC2,0xF8,0xAD,0x23
        .byte   0x82,0x5F,0xC6,0x2A,0xB9,0x4A,0xD3,0x77
        .byte   0xD7,0xA4,0x58,0x4E,0x42,0x7C,0xD4,0x06
        .byte   0x9A,0xCC,0x8D,0x8F,0x89,0x1B,0x7F,0xA4
        .byte   0xF9,0x48,0x78,0xBB,0x40,0x26,0xDE,0xC3
        .byte   0x85,0xA5,0xED,0x3F,0xF0,0xC1,0xB7,0xC7
        .byte   0x65,0x0F,0x15,0xA8,0x8C,0xE9,0xAF,0x26
        .byte   0xB6,0x3C,0xB6,0x40,0x57,0x35,0xE4,0x50
        .byte   0x7E,0x5D,0x0B,0xBF,0x84,0xEA,0x82,0x0A
        .byte   0x8F,0x70,0x4A,0x7F,0x31,0x02,0x47,0x96
        .byte   0x12,0x5D,0x3F,0x9E,0x47,0xEE,0xC5,0xFD
        .byte   0x2B,0x7B,0x3E,0x82,0xB1,0x23,0xD3,0x2F
        .byte   0x81,0xDF,0xEE,0x06,0xCA,0x70,0x11,0x59
        .byte   0xE0,0x5B,0xD9,0x11,0x5E,0x21,0xA8,0x70
        .byte   0x7E,0xE7,0x0E,0xC5,0xD6,0xD4,0xC3,0x01
        .byte   0x4F,0x01,0x84,0x01,0x24,0x57,0x30,0xA5
        .byte   0x37,0x1E,0xAC,0x01,0x8F,0xBD,0x5A,0x70
        .byte   0x18,0x34,0x82,0x77,0x55,0x2A,0xE7,0xD3
        .byte   0x12,0xF6,0x99,0xE8,0xCA,0x5C,0xEA,0x1A
        .byte   0x5D,0x6E,0x1B,0x82,0xC5,0x4B,0x28,0xFD
        .byte   0x6A,0xD4,0xFE,0xFA,0x91,0x59,0x6A,0xAA
        .byte   0x8D,0xEC,0x21,0xE3,0x17,0x09,0xB7,0x29
        .byte   0xFF,0x50,0x12,0xC9,0xAC,0xFC,0xE3,0x0A
        .byte   0x6B,0xFF,0x8D,0x31,0x4A,0xB5,0x2E,0xB5
        .byte   0x8A
augment:
        .byte   0x45,0x23,0x98

Line No.	Rev	Author	Line
1	14	hellwig	`;`
2			`; memtest2.s -- memory test`
3			`;`
4
5			`; $2 temporary`
6			`; $3 tbl address`
7			`; $4 mem address`
8			`; $5 tbl count`
9			`; $6 mem count`
10			`; $7 error`
11			`; $8 I/O base`
12			`; $9 value read`
13			`; $10 reference value`
14
15			`.set mem_base,0xC0000000`
16			`.set mem_size,1024*1024`
17			`.set io_base,0xF0300000`
18
19			`;`
20			`; write memory`
21			`;`
22			`write:`
23			`add $4,$0,mem_base`
24			`add $6,$0,mem_size`
25			`add $3,$0,tbl`
26			`add $5,$0,257`
27			`wrloop:`
28			`ldbu $2,$3,0`
29			`stb $2,$4,0`
30			`add $3,$3,1`
31			`sub $5,$5,1`
32			`bne $5,$0,wrloop1`
33			`add $3,$0,tbl`
34			`add $5,$0,257`
35			`wrloop1:`
36			`add $4,$4,1`
37			`sub $6,$6,1`
38			`bne $6,$0,wrloop`
39			`;`
40			`; read memory`
41			`;`
42			`read:`
43			`add $4,$0,mem_base`
44			`add $6,$0,mem_size`
45			`add $3,$0,tbl`
46			`add $5,$0,257`
47			`add $7,$0,0`
48			`rdloop:`
49			`; always check byte`
50			`byte:`
51			`ldbu $9,$4,0`
52			`ldbu $10,$3,0`
53			`beq $9,$10,byteok`
54			`add $7,$0,1`
55			`byteok:`
56			`; possibly check halfword`
57			`half:`
58			`and $2,$4,1`
59			`bne $2,$0,halfok`
60			`ldhu $9,$4,0`
61			`ldbu $10,$3,0`
62			`jal shft8`
63			`ldbu $2,$3,1`
64			`or $10,$10,$2`
65			`beq $9,$10,halfok`
66			`add $7,$0,1`
67			`halfok:`
68			`; possibly check word`
69			`word:`
70			`and $2,$4,3`
71			`bne $2,$0,wordok`
72			`ldw $9,$4,0`
73			`ldbu $10,$3,0`
74			`jal shft8`
75			`ldbu $2,$3,1`
76			`or $10,$10,$2`
77			`jal shft8`
78			`ldbu $2,$3,2`
79			`or $10,$10,$2`
80			`jal shft8`
81			`ldbu $2,$3,3`
82			`or $10,$10,$2`
83			`beq $9,$10,wordok`
84			`add $7,$0,1`
85			`wordok:`
86			`; next address`
87			`add $3,$3,1`
88			`sub $5,$5,1`
89			`bne $5,$0,rdloop1`
90			`add $3,$0,tbl`
91			`add $5,$0,257`
92			`rdloop1:`
93			`add $4,$4,1`
94			`sub $6,$6,1`
95			`bne $6,$0,rdloop`
96			`;`
97			`; show result`
98			`;`
99			`bne $7,$0,error`
100			`ok:`
101			`add $7,$0,'.'`
102			`jal out`
103			`j halt`
104			`error:`
105			`add $7,$0,'?'`
106			`jal out`
107			`j halt`
108			`;`
109			`; finally, halt`
110			`;`
111			`halt:`
112			`j halt`
113
114			`shft8:`
115			`add $10,$10,$10`
116			`add $10,$10,$10`
117			`add $10,$10,$10`
118			`add $10,$10,$10`
119			`add $10,$10,$10`
120			`add $10,$10,$10`
121			`add $10,$10,$10`
122			`add $10,$10,$10`
123			`jr $31`
124
125			`out:`
126			`add $8,$0,io_base`
127			`out1:`
128			`ldw $9,$8,8`
129			`and $9,$9,1`
130			`beq $9,$0,out1`
131			`stw $7,$8,12`
132			`jr $31`
133
134			`tbl:`
135			`.byte 0x45,0x23,0x98,0x48,0xDC,0x5C,0x94,0x58`
136			`.byte 0x1F,0x7C,0x58,0xD7,0x41,0x1E,0xA9,0xE1`
137			`.byte 0x00,0x62,0x08,0x27,0x23,0xE9,0xCD,0x43`
138			`.byte 0x0F,0x25,0xF9,0x72,0xC2,0xD7,0xC4,0x07`
139			`.byte 0xFB,0x5D,0x50,0xD7,0xBA,0xE4,0x30,0xD9`
140			`.byte 0x61,0x89,0xB1,0xA3,0xA8,0x5A,0x84,0xA8`
141			`.byte 0xBD,0x8C,0xD0,0xE0,0x76,0x9E,0x24,0x86`
142			`.byte 0xC4,0x1D,0xF8,0x86,0xF5,0xBD,0x8D,0xF0`
143			`.byte 0x1A,0xDD,0xC8,0xD4,0xC2,0xF8,0xAD,0x23`
144			`.byte 0x82,0x5F,0xC6,0x2A,0xB9,0x4A,0xD3,0x77`
145			`.byte 0xD7,0xA4,0x58,0x4E,0x42,0x7C,0xD4,0x06`
146			`.byte 0x9A,0xCC,0x8D,0x8F,0x89,0x1B,0x7F,0xA4`
147			`.byte 0xF9,0x48,0x78,0xBB,0x40,0x26,0xDE,0xC3`
148			`.byte 0x85,0xA5,0xED,0x3F,0xF0,0xC1,0xB7,0xC7`
149			`.byte 0x65,0x0F,0x15,0xA8,0x8C,0xE9,0xAF,0x26`
150			`.byte 0xB6,0x3C,0xB6,0x40,0x57,0x35,0xE4,0x50`
151			`.byte 0x7E,0x5D,0x0B,0xBF,0x84,0xEA,0x82,0x0A`
152			`.byte 0x8F,0x70,0x4A,0x7F,0x31,0x02,0x47,0x96`
153			`.byte 0x12,0x5D,0x3F,0x9E,0x47,0xEE,0xC5,0xFD`
154			`.byte 0x2B,0x7B,0x3E,0x82,0xB1,0x23,0xD3,0x2F`
155			`.byte 0x81,0xDF,0xEE,0x06,0xCA,0x70,0x11,0x59`
156			`.byte 0xE0,0x5B,0xD9,0x11,0x5E,0x21,0xA8,0x70`
157			`.byte 0x7E,0xE7,0x0E,0xC5,0xD6,0xD4,0xC3,0x01`
158			`.byte 0x4F,0x01,0x84,0x01,0x24,0x57,0x30,0xA5`
159			`.byte 0x37,0x1E,0xAC,0x01,0x8F,0xBD,0x5A,0x70`
160			`.byte 0x18,0x34,0x82,0x77,0x55,0x2A,0xE7,0xD3`
161			`.byte 0x12,0xF6,0x99,0xE8,0xCA,0x5C,0xEA,0x1A`
162			`.byte 0x5D,0x6E,0x1B,0x82,0xC5,0x4B,0x28,0xFD`
163			`.byte 0x6A,0xD4,0xFE,0xFA,0x91,0x59,0x6A,0xAA`
164			`.byte 0x8D,0xEC,0x21,0xE3,0x17,0x09,0xB7,0x29`
165			`.byte 0xFF,0x50,0x12,0xC9,0xAC,0xFC,0xE3,0x0A`
166			`.byte 0x6B,0xFF,0x8D,0x31,0x4A,0xB5,0x2E,0xB5`
167			`.byte 0x8A`
168			`augment:`
169			`.byte 0x45,0x23,0x98`

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[/] [eco32/] [trunk/] [hwtests/] [memtest2/] [memtest2.s] - Blame information for rev 27