| 1 |
10 |
robfinch |
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| 2 |
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FFFFFFFFFFFFF000.0 org 0xFFFF_FFFF_FFFF_F000
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| 3 |
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FFFFFFFFFFFFF000.0 start:
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| 4 |
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FFFFFFFFFFFFF000.0 048020013FD ori r1,r0,#5117 ; test data
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| 5 |
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FFFFFFFFFFFFF000.1 00848000018 sqrt r4,r1
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| 6 |
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FFFFFFFFFFFFF000.2 00848000018 sqrt r4,r1
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| 7 |
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FFFFFFFFFFFFF010.0 0480400042B ori r2,r0,#1067
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| 8 |
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FFFFFFFFFFFFF010.1 01044500018 mulu r5,r1,r2
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| 9 |
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FFFFFFFFFFFFF010.2 04803D00000 ori r1,r0,#0xFFFF_FFFF_FFD0_0000
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| 10 |
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FFFFFFFFFFFFF020.0 04804000032 ori r2,r0,#0x32
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| 11 |
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FFFFFFFFFFFFF020.1 0480600064C ori r3,r0,#1612
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| 12 |
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FFFFFFFFFFFFF020.2 j1:
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| 13 |
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FFFFFFFFFFFFF020.2 18844000000 sc r2,[r1]
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| 14 |
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FFFFFFFFFFFFF030.0 02042000002 addi r1,r1,#2
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| 15 |
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FFFFFFFFFFFFF030.1 028C6000001 subi r3,r3,#1
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| 16 |
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FFFFFFFFFFFFF030.2 288C1FFFFFE bne r3,r0,j1
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| 17 |
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FFFFFFFFFFFFF040.0 0C7FFFFFC16 call Getkey
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| 18 |
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FFFFFFFFFFFFF040.1 37800000000 nop
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| 19 |
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FFFFFFFFFFFFF040.2 37800000000 nop
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| 20 |
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FFFFFFFFFFFFF050.0 37800000000 nop
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| 21 |
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FFFFFFFFFFFFF050.1 37800000000 nop
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| 22 |
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| 23 |
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FFFFFFFFFFFFF050.2 Getkey:
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| 24 |
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FFFFFFFFFFFFF050.2 04803DC0000 ori r1,r0,#0xFFFF_FFFF_FFDC_0000
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| 25 |
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FFFFFFFFFFFFF060.0 sr1:
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| 26 |
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FFFFFFFFFFFFF060.0 10044000000 lb r2,[r1]
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| 27 |
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FFFFFFFFFFFFF060.1 2A880000000 bge r2,r0,sr1
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| 28 |
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FFFFFFFFFFFFF060.2 10040000001 lb r0,1[r1] ; clear keyboard strobe
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| 29 |
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FFFFFFFFFFFFF070.0 0D83E000000 ret
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| 30 |
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| 31 |
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;==============================================================================
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| 32 |
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; Checkerboard RAM tester
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| 33 |
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;==============================================================================
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| 34 |
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;
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| 35 |
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FFFFFFFFFFFFF070.1 ramtest:
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| 36 |
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FFFFFFFFFFFFF070.1 01000800009 or r8,r0,r0 ; r8 = 0
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| 37 |
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FFFFFFFFFFFFF070.2 3D5552AAAD5
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| 38 |
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FFFFFFFFFFFFF080.0 04802AA5555 ori r1,r0,#0xAAAA5555AAAA5555 ; checkerboard pattern
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| 39 |
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FFFFFFFFFFFFF080.1 ramtest2:
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| 40 |
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FFFFFFFFFFFFF080.1 19A02000000 sw r1,[r8] ; save the checkerboard to memory
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| 41 |
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FFFFFFFFFFFFF080.2 11A04000000 lw r2,[r8] ; read it back
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| 42 |
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FFFFFFFFFFFFF090.0 01044300006 cmp r3,r1,r2 ; is it the same ?
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| 43 |
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FFFFFFFFFFFFF090.1 080C2000008 bnez r3,r0,ramtest1
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| 44 |
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FFFFFFFFFFFFF090.2 02210000008 addi r8,r8,#8 ; increment RAM pointer
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| 45 |
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FFFFFFFFFFFFF0A0.0 38000000000
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| 46 |
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FFFFFFFFFFFFF0A0.1 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
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| 47 |
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FFFFFFFFFFFFF0A0.2 080C5FFFFF9 bltz r3,r0,ramtest2
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| 48 |
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FFFFFFFFFFFFF0B0.0 ramtest1:
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| 49 |
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FFFFFFFFFFFFF0B0.0 01200A00009 or r10,r8,r0 ; r10 = max ram address
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| 50 |
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; readback the checkerboard pattern
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| 51 |
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FFFFFFFFFFFFF0B0.1 01000800009 or r8,r0,r0 ; r8 = 0
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| 52 |
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FFFFFFFFFFFFF0B0.2 ramtest4:
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| 53 |
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FFFFFFFFFFFFF0B0.2 11A04000000 lw r2,[r8]
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| 54 |
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FFFFFFFFFFFFF0C0.0 3D5552AAAD5
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| 55 |
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FFFFFFFFFFFFF0C0.1 03086AA5555 cmpi r3,r2,#0xAAAA5555AAAA5555
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| 56 |
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FFFFFFFFFFFFF0C0.2 080C2000009 bnez r3,r0,ramtest3
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| 57 |
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FFFFFFFFFFFFF0D0.0 02210000008 addi r8,r8,#8
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| 58 |
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FFFFFFFFFFFFF0D0.1 38000000000
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| 59 |
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FFFFFFFFFFFFF0D0.2 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
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| 60 |
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FFFFFFFFFFFFF0E0.0 080C5FFFFF6 bltz r3,r0,ramtest4
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| 61 |
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FFFFFFFFFFFFF0E0.1 ramtest3:
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| 62 |
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FFFFFFFFFFFFF0E0.1 28A1400001E bne r8,r10,ramtest8 ; check for equal maximum address
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| 63 |
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| 64 |
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; perform ramtest again with inverted checkerboard
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| 65 |
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FFFFFFFFFFFFF0E0.2 01000800009 or r8,r0,r0 ; r8 = 0
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| 66 |
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FFFFFFFFFFFFF0F0.0 3AAAAD5552A
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| 67 |
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FFFFFFFFFFFFF0F0.1 0480355AAAA ori r1,r0,#0x5555AAAA5555AAAA
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| 68 |
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FFFFFFFFFFFFF0F0.2 ramtest5:
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| 69 |
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FFFFFFFFFFFFF0F0.2 19A02000000 sw r1,[r8]
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| 70 |
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FFFFFFFFFFFFF100.0 11A04000000 lw r2,[r8]
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| 71 |
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FFFFFFFFFFFFF100.1 01044300006 cmp r3,r1,r2
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| 72 |
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FFFFFFFFFFFFF100.2 080C2000009 bnez r3,r0,ramtest6
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| 73 |
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FFFFFFFFFFFFF110.0 02210000008 addi r8,r8,#8
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| 74 |
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FFFFFFFFFFFFF110.1 38000000000
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| 75 |
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FFFFFFFFFFFFF110.2 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
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| 76 |
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FFFFFFFFFFFFF120.0 080C5FFFFF6 bltz r3,r0,ramtest5
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| 77 |
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FFFFFFFFFFFFF120.1 ramtest6:
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| 78 |
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FFFFFFFFFFFFF120.1 01200B00009 or r11,r8,r0 ; r11 = max ram address
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| 79 |
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; readback checkerboard
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| 80 |
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FFFFFFFFFFFFF120.2 01000800009 or r8,r0,r0
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| 81 |
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FFFFFFFFFFFFF130.0 ramtest7:
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| 82 |
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FFFFFFFFFFFFF130.0 11A04000000 lw r2,[r8]
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| 83 |
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FFFFFFFFFFFFF130.1 3AAAAD5552A
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| 84 |
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FFFFFFFFFFFFF130.2 0308755AAAA cmpi r3,r2,#0x5555AAAA5555AAAA
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| 85 |
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FFFFFFFFFFFFF140.0 080C2000006 bnez r3,r0,ramtest8
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| 86 |
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FFFFFFFFFFFFF140.1 02210000008 addi r8,r8,#8
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| 87 |
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FFFFFFFFFFFFF140.2 38000000000
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| 88 |
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FFFFFFFFFFFFF150.0 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
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| 89 |
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FFFFFFFFFFFFF150.1 080C5FFFFF8 bltz r3,r0,ramtest7
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| 90 |
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FFFFFFFFFFFFF150.2 ramtest8:
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| 91 |
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FFFFFFFFFFFFF150.2 28216000005 beq r8,r11,ramtest9
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| 92 |
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FFFFFFFFFFFFF160.0 01216800014 min r8,r8,r11
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| 93 |
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FFFFFFFFFFFFF160.1 ramtest9:
|
| 94 |
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FFFFFFFFFFFFF160.1 28214000004 beq r8,r10,ramtest10
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| 95 |
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FFFFFFFFFFFFF160.2 01214800014 min r8,r8,r10
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| 96 |
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FFFFFFFFFFFFF170.0 ramtest10:
|
| 97 |
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FFFFFFFFFFFFF170.0 19810000400 sw r8,0x00000400 ;memend
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| 98 |
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| 99 |
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FFFFFFFFFFFFFFC0.0 org 0xFFFF_FFFF_FFFF_FFC0
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| 100 |
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FFFFFFFFFFFFFFC0.0 37800000000 nop
|
| 101 |
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FFFFFFFFFFFFFFC0.1 37800000000 nop
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| 102 |
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FFFFFFFFFFFFFFC0.2 37800000000 nop
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| 103 |
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FFFFFFFFFFFFFFD0.0 37800000000 nop
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| 104 |
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FFFFFFFFFFFFFFD0.1 37800000000 nop
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| 105 |
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FFFFFFFFFFFFFFD0.2 37800000000 nop
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| 106 |
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FFFFFFFFFFFFFFE0.0 37800000000 nop
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| 107 |
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FFFFFFFFFFFFFFE0.1 37800000000 nop
|
| 108 |
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FFFFFFFFFFFFFFE0.2 37800000000 nop
|
| 109 |
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FFFFFFFFFFFFFFF0.0 org 0xFFFF_FFFF_FFFF_FFF0
|
| 110 |
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FFFFFFFFFFFFFFF0.0 0CFFFFFFC00 jmp start
|
| 111 |
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| 112 |
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FFFFFFFFFFFFFFF0.1 00000000000
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| 113 |
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FFFFFFFFFFFFFFF0.2 00000000000
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