| 1 |
7 |
fcorthay |
;===============================================================
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| 2 |
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; nanoTest.asm
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| 3 |
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; Used for checking the NanoBlaze instruction set
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| 4 |
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;===============================================================
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| 5 |
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; 1) Test logical operations with direct values
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;---------------------------------------------------------------
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| 7 |
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LOAD s7, 01
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| 8 |
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CONSTANT testPattern, 0F
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| 9 |
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;---------------------------------------------------------------
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| 10 |
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; Test "LOAD", "AND"
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| 11 |
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;---------------------------------------------------------------
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| 12 |
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LOAD s0, testPattern
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| 13 |
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AND s0, 33
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| 14 |
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COMPARE s0, 03
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| 15 |
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JUMP NZ, error
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| 16 |
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;---------------------------------------------------------------
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; Test "OR"
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| 18 |
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;---------------------------------------------------------------
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| 19 |
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LOAD s1, testPattern
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| 20 |
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OR s1, 33
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| 21 |
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COMPARE s1, 3F
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| 22 |
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JUMP NZ, error
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| 23 |
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;---------------------------------------------------------------
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| 24 |
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; Test "XOR"
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| 25 |
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;---------------------------------------------------------------
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| 26 |
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LOAD s2, testPattern
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| 27 |
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XOR s2, 33
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| 28 |
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COMPARE s2, 3C
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| 29 |
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JUMP NZ, error
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| 30 |
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;===============================================================
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| 31 |
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; 2) Test logical operations with registers
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;---------------------------------------------------------------
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| 33 |
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ADD s7, 01
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;---------------------------------------------------------------
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| 35 |
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; Test "LOAD"
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| 36 |
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;---------------------------------------------------------------
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| 37 |
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LOAD s0, 33
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| 38 |
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LOAD s3, s0
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| 39 |
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COMPARE s3, 33
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| 40 |
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JUMP NZ, error
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| 41 |
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;---------------------------------------------------------------
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| 42 |
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; Test "AND"
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| 43 |
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;---------------------------------------------------------------
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| 44 |
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LOAD s0, 0F
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| 45 |
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AND s0, s3
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| 46 |
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COMPARE s0, 03
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| 47 |
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JUMP NZ, error
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;---------------------------------------------------------------
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| 49 |
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; Test "OR"
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| 50 |
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;---------------------------------------------------------------
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| 51 |
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LOAD s1, 0F
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| 52 |
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OR s1, s3
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| 53 |
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COMPARE s1, 3F
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| 54 |
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JUMP NZ, error
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| 55 |
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;---------------------------------------------------------------
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| 56 |
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; Test "XOR"
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| 57 |
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;---------------------------------------------------------------
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| 58 |
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LOAD s2, 0F
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| 59 |
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XOR s2, s3
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| 60 |
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COMPARE s2, 3C
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| 61 |
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JUMP NZ, error
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| 62 |
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;===============================================================
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| 63 |
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; 3) Test arithmetic operations with constants
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| 64 |
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;---------------------------------------------------------------
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| 65 |
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ADD s7, 01
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| 66 |
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;---------------------------------------------------------------
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| 67 |
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; Test "ADD" and "ADDCY"
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| 68 |
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;---------------------------------------------------------------
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| 69 |
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LOAD s0, 0F
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| 70 |
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ADD s0, 31 ; 40
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| 71 |
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ADDCY s0, F0 ; 130
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| 72 |
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ADDCY s0, F0 ; 121
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| 73 |
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ADD s0, 0F ; 30
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| 74 |
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COMPARE s0, 30
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| 75 |
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JUMP NZ, error
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| 76 |
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;---------------------------------------------------------------
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| 77 |
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; Test "SUB" and "SUBCY"
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| 78 |
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;---------------------------------------------------------------
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| 79 |
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LOAD s1, 0F
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| 80 |
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SUB s1, 0C ; 03
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| 81 |
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SUBCY s1, F0 ; 113
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| 82 |
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SUBCY s1, F0 ; 22
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| 83 |
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SUB s1, 01 ; 21
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| 84 |
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COMPARE s1, 21
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| 85 |
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JUMP NZ, error
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| 86 |
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;===============================================================
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| 87 |
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; 4) Test arithmetic operations with registers
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| 88 |
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;---------------------------------------------------------------
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| 89 |
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ADD s7, 01
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;---------------------------------------------------------------
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| 91 |
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; Test "ADD" and "ADDCY"
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| 92 |
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;---------------------------------------------------------------
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| 93 |
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LOAD s0, 0F
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| 94 |
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LOAD s1, 31
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| 95 |
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LOAD s2, F0
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| 96 |
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LOAD s3, 0F
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| 97 |
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ADD s0, s1 ; 40
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| 98 |
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ADDCY s0, s2 ; 130
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| 99 |
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ADDCY s0, s2 ; 121
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| 100 |
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ADD s0, s3 ; 30
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| 101 |
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COMPARE s0, 30
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| 102 |
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JUMP NZ, error
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| 103 |
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;---------------------------------------------------------------
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| 104 |
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; Test "SUB" and "SUBCY"
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| 105 |
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;---------------------------------------------------------------
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| 106 |
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LOAD s1, 0F
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| 107 |
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LOAD s0, 0C
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| 108 |
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LOAD s2, F0
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| 109 |
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LOAD s3, 01
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SUB s1, s0 ; 03
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SUBCY s1, s2 ; 113
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| 112 |
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SUBCY s1, s2 ; 22
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SUB s1, s3 ; 21
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| 114 |
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COMPARE s1, 21
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| 115 |
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JUMP NZ, error
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| 116 |
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;===============================================================
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| 117 |
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; 5) Test shifts
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| 118 |
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;---------------------------------------------------------------
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| 119 |
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ADD s7, 01
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| 120 |
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;---------------------------------------------------------------
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| 121 |
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; Test shift right
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| 122 |
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;---------------------------------------------------------------
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| 123 |
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LOAD s0, 0F ; 0F
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SR0 s0 ; 07
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SRX s0 ; 03
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| 126 |
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SR1 s0 ; 81
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| 127 |
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SRX s0 ; C0, C=1
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| 128 |
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SRA s0 ; E0, C=0
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| 129 |
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SRA s0 ; 70
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| 130 |
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COMPARE s0, 70
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| 131 |
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JUMP NZ, error
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| 132 |
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;---------------------------------------------------------------
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; Test shift left
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;---------------------------------------------------------------
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LOAD s1, F0 ; FO
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SL0 s1 ; E0
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SLX s1 ; C0
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SL1 s1 ; 81
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SLX s1 ; 03, C=1
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| 140 |
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SLA s1 ; 07, C=0
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| 141 |
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SLA s1 ; 0E
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| 142 |
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COMPARE s1, 0E
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| 143 |
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JUMP NZ, error
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| 144 |
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;===============================================================
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| 145 |
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; 6) Test comparison operators
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| 146 |
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;---------------------------------------------------------------
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| 147 |
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ADD s7, 01
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| 148 |
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;---------------------------------------------------------------
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| 149 |
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; Test "COMPARE"
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| 150 |
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;---------------------------------------------------------------
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| 151 |
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LOAD s0, 0F
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| 152 |
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COMPARE s0, F0 ; A < B => C=1
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| 153 |
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JUMP NC, error
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| 154 |
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COMPARE s0, F0 ; A < B => Z=0
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| 155 |
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JUMP Z, error
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| 156 |
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COMPARE s0, s0 ; A = B => Z=1
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| 157 |
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JUMP NZ, error
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| 158 |
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COMPARE s0, 08 ; A > B => C=0
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| 159 |
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JUMP C, error
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| 160 |
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COMPARE s0, 08 ; A > B => Z=0
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| 161 |
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JUMP Z, error
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| 162 |
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;---------------------------------------------------------------
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| 163 |
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; Test "TEST"
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| 164 |
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;---------------------------------------------------------------
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| 165 |
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LOAD s0, 0F
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TEST s0, F0 ; AND is 00 => Z=1
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| 167 |
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JUMP NZ, error
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| 168 |
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TEST s0, FF ; AND is 0F => Z=0
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| 169 |
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JUMP Z, error
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| 170 |
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;===============================================================
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| 171 |
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; 7) Test INPUT and OUTPUT operators
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| 172 |
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;---------------------------------------------------------------
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| 173 |
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ADD s7, 01
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| 174 |
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;---------------------------------------------------------------
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| 175 |
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; Test "INPUT" and "OUTPUT" direct
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| 176 |
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;
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| 177 |
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; The testbench should invert the word written at address FC.
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| 178 |
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;---------------------------------------------------------------
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| 179 |
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LOAD s0, AA
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OUTPUT s0, FC
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| 181 |
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INPUT s1, FC
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| 182 |
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COMPARE s1, 55
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JUMP NZ, error
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| 184 |
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;---------------------------------------------------------------
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| 185 |
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; Test "INPUT" and "OUTPUT" indexed
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| 186 |
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;---------------------------------------------------------------
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| 187 |
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LOAD s0, CC
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| 188 |
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LOAD s2, FC
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| 189 |
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OUTPUT s0, (s2)
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| 190 |
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INPUT s1, (s2)
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| 191 |
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COMPARE s1, 33
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| 192 |
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JUMP NZ, error
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| 193 |
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;===============================================================
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| 194 |
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; 8) Test STORE and FETCH operators
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| 195 |
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;---------------------------------------------------------------
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ADD s7, 01
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| 197 |
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;---------------------------------------------------------------
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| 198 |
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; Test "STORE" and "FETCH" direct
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| 199 |
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;---------------------------------------------------------------
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| 200 |
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LOAD s0, 0F
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| 201 |
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STORE s0, 03
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| 202 |
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FETCH s1, 03
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| 203 |
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COMPARE s1, 0F
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| 204 |
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JUMP NZ, error
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| 205 |
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;---------------------------------------------------------------
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| 206 |
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; Test "STORE" and "FETCH" indexed
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| 207 |
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;---------------------------------------------------------------
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| 208 |
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LOAD s0, F0
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| 209 |
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LOAD s2, 04
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| 210 |
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STORE s0, (s2)
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| 211 |
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FETCH s1, (s2)
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| 212 |
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COMPARE s1, F0
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| 213 |
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JUMP NZ, error
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| 214 |
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;===============================================================
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| 215 |
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; 9) Test JUMP instructions
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| 216 |
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;---------------------------------------------------------------
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| 217 |
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ADD s7, 01
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| 218 |
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;---------------------------------------------------------------
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| 219 |
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; Test "JUMP NC"
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| 220 |
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;---------------------------------------------------------------
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| 221 |
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LOAD s0, F0
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| 222 |
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ADD s0, 00 ; s0=F0, C=0, Z=0
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| 223 |
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JUMP NC, continue1
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| 224 |
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JUMP error
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| 225 |
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;---------------------------------------------------------------
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| 226 |
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; Test "JUMP NZ"
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| 227 |
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;---------------------------------------------------------------
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| 228 |
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continue1: ADD s0, 00 ; s0=F0, C=0, Z=0
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| 229 |
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JUMP NZ, continue2
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| 230 |
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JUMP error
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| 231 |
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;---------------------------------------------------------------
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| 232 |
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; Test "JUMP C"
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| 233 |
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;---------------------------------------------------------------
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| 234 |
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continue2: ADD s0, F0 ; s0=E0, C=1, Z=0
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| 235 |
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JUMP C, continue3
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| 236 |
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JUMP error
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| 237 |
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;---------------------------------------------------------------
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| 238 |
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; Test "JUMP Z"
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| 239 |
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;---------------------------------------------------------------
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| 240 |
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continue3: SUB s0, E0 ; s0=00, C=0, Z=1
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| 241 |
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JUMP Z, continue4
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| 242 |
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JUMP error
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| 243 |
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continue4: NOP
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| 244 |
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;===============================================================
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| 245 |
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; 10) Test call instructions
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| 246 |
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;---------------------------------------------------------------
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| 247 |
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ADD s7, 01
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| 248 |
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;---------------------------------------------------------------
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| 249 |
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; define subroutine
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| 250 |
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;---------------------------------------------------------------
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| 251 |
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JUMP continue5
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| 252 |
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subRetDo: ADD s0, 01
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| 253 |
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RETURN
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| 254 |
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JUMP error
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| 255 |
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;---------------------------------------------------------------
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| 256 |
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; Test "CALL"
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| 257 |
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;---------------------------------------------------------------
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| 258 |
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continue5: LOAD s0, 00
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| 259 |
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LOAD s1, F0
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| 260 |
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CALL subRetDo ; s0=01
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| 261 |
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;---------------------------------------------------------------
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| 262 |
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; Test "CALL NC"
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| 263 |
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;---------------------------------------------------------------
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| 264 |
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ADD s1, 00 ; s1=F0, C=0, Z=0
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| 265 |
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CALL NC, subRetDo ; s0=02
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| 266 |
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;---------------------------------------------------------------
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| 267 |
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; Test "CALL NZ"
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| 268 |
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;---------------------------------------------------------------
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| 269 |
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ADD s1, 00 ; s1=F0, C=0, Z=0
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| 270 |
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CALL NZ, subRetDo ; s0=03
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| 271 |
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;---------------------------------------------------------------
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| 272 |
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; Test "CALL C"
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| 273 |
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;---------------------------------------------------------------
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| 274 |
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ADD s1, F0 ; s0=E0, C=1, Z=0
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| 275 |
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CALL C, subRetDo ; s0=04
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| 276 |
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;---------------------------------------------------------------
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| 277 |
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; Test "CALL Z"
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| 278 |
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;---------------------------------------------------------------
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| 279 |
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SUB s1, E0 ; s0=00, C=0, Z=1
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| 280 |
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CALL Z, subRetDo ; s0=05
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| 281 |
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COMPARE s0, 05
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| 282 |
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jump nz, error
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| 283 |
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;===============================================================
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| 284 |
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; 11) Test call return instructions
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| 285 |
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;---------------------------------------------------------------
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| 286 |
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ADD s7, 01
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| 287 |
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;---------------------------------------------------------------
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| 288 |
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; define subroutines
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| 289 |
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;---------------------------------------------------------------
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| 290 |
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JUMP continue6
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| 291 |
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subRetNC: ADD s0, 01
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| 292 |
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RETURN NC
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| 293 |
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JUMP error
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| 294 |
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subRetNZ: ADD s0, 01
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| 295 |
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RETURN NZ
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| 296 |
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JUMP error
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| 297 |
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subRetC: ADD s0, 01
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| 298 |
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RETURN C
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| 299 |
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JUMP error
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| 300 |
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subRetZ: ADD s0, 01
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| 301 |
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RETURN Z
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| 302 |
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JUMP error
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| 303 |
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;---------------------------------------------------------------
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| 304 |
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; Test "RETURN NC"
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| 305 |
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;---------------------------------------------------------------
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| 306 |
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continue6: LOAD s0, 00 ; increment will give C=0, Z=0
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| 307 |
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CALL NC, subRetNC
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| 308 |
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;---------------------------------------------------------------
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| 309 |
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; Test "RETURN NZ"
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| 310 |
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;---------------------------------------------------------------
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| 311 |
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LOAD s0, 00 ; increment will give C=0, Z=0
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| 312 |
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CALL NZ, subRetNZ
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| 313 |
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;---------------------------------------------------------------
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| 314 |
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; Test "RETURN C"
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| 315 |
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;---------------------------------------------------------------
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| 316 |
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LOAD s0, FF ; increment will give C=1, Z=1
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| 317 |
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CALL C, subRetC
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| 318 |
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;---------------------------------------------------------------
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| 319 |
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; Test "RETURN Z"
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| 320 |
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;---------------------------------------------------------------
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| 321 |
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LOAD s0, FF ; increment will give C=1, Z=1
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| 322 |
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CALL Z, subRetZ
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| 323 |
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;===============================================================
|
| 324 |
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; End of tests
|
| 325 |
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;
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| 326 |
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; The testbench should react if value 1 is written to address 00.
|
| 327 |
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;---------------------------------------------------------------
|
| 328 |
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LOAD s0, 01
|
| 329 |
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OUTPUT s0, 00
|
| 330 |
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JUMP endOfMemory
|
| 331 |
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;===============================================================
|
| 332 |
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; Assert error
|
| 333 |
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;
|
| 334 |
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; The testbench should react if value 0 is written to address 00.
|
| 335 |
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;---------------------------------------------------------------
|
| 336 |
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ADDRESS 3FD
|
| 337 |
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error: LOAD s0, 00
|
| 338 |
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OUTPUT s0, 00
|
| 339 |
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;===============================================================
|
| 340 |
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; End of instruction memory
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| 341 |
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;---------------------------------------------------------------
|
| 342 |
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endOfMemory: JUMP endOfMemory
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