2 // we are in the regression tests
12 volatile float left, right, result;
15 float left, right, add, sub, mul, div, revdiv;
17 // left right add sub mul div revdiv
18 { 12.8, 25.6, 38.4, -12.8, 327.68, 0.5, 2},
19 { 12.8, -25.6, -12.8, 38.4, -327.68, -0.5, -2},
20 { -12.8, 25.6, 12.8, -38.4, -327.68, -0.5, -2},
21 { -12.8, -25.6, -38.4, 12.8, 327.68, 0.5, 2},
22 { 100.0, 10.0, 110.0, 90.0, 1000.00, 10.0, 0.1},
23 { 1000.0, 10.0, 1010.0, 990.0, 10000.00, 100.0, 0.01},
24 { 10000.0, 10.0, 10010.0, 9990.0, 100000.00, 1000.0, 0.001},
25 { 100000.0, 10.0, 100010.0, 99990.0, 1000000.00, 10000.0, 0.0001},
26 { 1000000.0, 10.0, 1000010.0, 999990.0, 10000000.00, 100000.0, 0.00001},
27 {10000000.0, 10.0,10000010.0, 9999990.0,100000000.00, 1000000.0, 0.000001},
28 { 0x100, 0x10, 0x110, 0xf0, 0x1000, 0x10, 0.0625},
29 { 0x1000, 0x10, 0x1010, 0xff0, 0x10000, 0x100, 0.00390625},
30 { 0x10000, 0x10, 0x10010, 0xfff0, 0x100000, 0x1000, 0.00024414},
31 { 0x100000, 0x10, 0x100010, 0xffff0, 0x1000000, 0x10000, 0 /* ignore */},
32 { 0x1000000, 0x10, 0x1000010, 0xfffff0, 0x10000000, 0x100000, 0 /* ignore */},
33 {0x10000000, 0x10,0x10000010, 0xffffff0, 0x100000000, 0x1000000, 0 /* ignore */},
36 int tests=0, errors=0;
38 char compare (float is, float should) {
39 float diff = should ? is/should : 0;
41 DEBUG(printf (" %1.3f (%f %f) ", is, should, diff));
44 DEBUG(printf ("IGNORED!\n"));
48 // skip the fp roundoff errors
49 if (diff>0.999999 && diff<1.00001) {
50 DEBUG(printf ("OK!\n"));
55 DEBUG(printf ("FAIL!\n"));
65 int t = sizeof(cases)/sizeof(cases[0]);
70 result=cases[i].left+cases[i].right;
71 DEBUG(printf ("%1.3f + %1.3f =", cases[i].left, cases[i].right));
72 compare(result, cases[i].add);
74 result=cases[i].left-cases[i].right;
75 DEBUG(printf ("%1.3f - %1.3f =", cases[i].left, cases[i].right));
76 compare(result, cases[i].sub);
78 result=cases[i].left*cases[i].right;
79 DEBUG(printf ("%1.3f * %1.3f =", cases[i].left, cases[i].right));
80 compare(result, cases[i].mul);
82 result=cases[i].left/cases[i].right;
83 DEBUG(printf ("%1.3f / %1.3f =", cases[i].left, cases[i].right));
84 compare(result, cases[i].div);
86 result=cases[i].right/cases[i].left;
87 DEBUG(printf ("%1.3f / %1.3f =", cases[i].right, cases[i].left));
88 compare(result, cases[i].revdiv);
90 DEBUG(printf ("%d tests, %d errors\n", tests, errors));