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1 import unittest
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2 import os
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3 import io
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4 from testemulation import runQemu, has_qemu
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5 from testzcc import relpath
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6 from ppci.buildfunctions import assemble, c3compile, link
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7
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8 startercode = """
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9 mov sp, 0x30000 ; setup stack pointer
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10 BL sample_start ; Branch to sample start
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11 local_loop:
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12 B local_loop
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13 """
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14
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15 class Samples:
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16 def testPrint(self):
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17 snippet = """
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18 module sample;
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19 import io;
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20 function void start()
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21 {
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22 io.print("Hello world");
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23 }
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24 """
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25 self.do(snippet, "Hello world")
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26
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27 def testForLoopPrint(self):
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28 snippet = """
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29 module sample;
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30 import io;
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31 function void start()
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32 {
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33 var int i;
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34 for (i=0; i<10; i = i + 1)
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35 {
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36 io.print2("A = ", i);
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37 }
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38 }
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39 """
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40 res = "".join("A = 0x{0:08X}\n".format(a) for a in range(10))
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41 self.do(snippet, res)
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42
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43 def testIfStatement(self):
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44 snippet = """
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45 module sample;
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46 import io;
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47 function void start()
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48 {
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49 var int i;
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50 i = 13;
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51 if (i*7 < 100)
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52 {
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53 io.print("Wow");
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54 }
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55 else
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56 {
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57 io.print("Outch");
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58 }
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59 }
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60 """
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61 res = "Wow"
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62 self.do(snippet, res)
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63
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64 def testParameterPassing4(self):
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65 snippet = """
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66 module sample;
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67 import io;
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68 function void dump(int a, int b, int c, int d)
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69 {
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70 io.print2("a=", a);
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71 io.print2("b=", b);
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72 io.print2("c=", c);
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73 io.print2("d=", d);
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74 }
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75 function void start()
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76 {
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77 dump(4,55,66,0x1337);
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78 }
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79 """
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80 res = "a=0x{0:08X}\n".format(4)
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81 res += "b=0x{0:08X}\n".format(55)
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82 res += "c=0x{0:08X}\n".format(66)
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83 res += "d=0x{0:08X}\n".format(0x1337)
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84 self.do(snippet, res)
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85
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86 def testGlobalVariable(self):
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87 snippet = """
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88 module sample;
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89 import io;
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90 var int G;
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91 function void do1()
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92 {
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93 G = G + 1;
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94 io.print2("G=", G);
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95 }
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96 function void do5()
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97 {
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98 G = G + 5;
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99 io.print2("G=", G);
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100 }
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101 function void start()
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102 {
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103 G = 0;
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104 do1();
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105 do1();
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106 do5();
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107 do1();
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108 do5();
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109 }
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110 """
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111 res = "".join("G=0x{0:08X}\n".format(a) for a in [1,2,7,8,13])
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112 self.do(snippet, res)
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113
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114
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115 class TestSamplesOnVexpress(unittest.TestCase, Samples):
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116 def setUp(self):
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117 if not has_qemu():
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118 self.skipTest('Not running qemu tests')
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119
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120 def do(self, src, expected_output):
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121 # Construct binary file from snippet:
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122 o1 = assemble(io.StringIO(startercode), 'arm')
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123 o2 = c3compile([
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124 relpath('..', 'kernel', 'src', 'io.c3'),
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125 relpath('..', 'kernel', 'arch', 'vexpressA9.c3'),
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126 io.StringIO(src)], [], 'arm')
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127 layout = {'code': 0x10000, 'data': 0x20000}
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128 o3 = link([o1, o2], layout)
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129
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130 sample_filename = 'testsample.bin'
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131 with open(sample_filename, 'wb') as f:
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132 f.write(o3.get_section('code').data)
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133
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134 # Check bin file exists:
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135 self.assertTrue(os.path.isfile(sample_filename))
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136
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137 # Run bin file in emulator:
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138 res = runQemu(sample_filename, machine='vexpress-a9')
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139 os.remove(sample_filename)
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140 self.assertEqual(expected_output, res)
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141
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142
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143 if __name__ == '__main__':
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144 unittest.main()
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145
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