3 operation: ADD, SUB, MUL, DIV, REVDIV
7 // we are in the regression tests
32 XDATA volatile float left, right, result;
35 float left, right, add, sub, mul, div, revdiv;
37 // left right add sub mul div revdiv
38 { 12.8, 25.6, 38.4, -12.8, 327.68, 0.5, 2},
39 { 12.8, -25.6, -12.8, 38.4, -327.68, -0.5, -2},
40 { -12.8, 25.6, 12.8, -38.4, -327.68, -0.5, -2},
41 { -12.8, -25.6, -38.4, 12.8, 327.68, 0.5, 2},
42 { 100.0, 10.0, 110.0, 90.0, 1000.00, 10.0, 0.1},
43 { 1000.0, 10.0, 1010.0, 990.0, 10000.00, 100.0, 0.01},
44 { 10000.0, 10.0, 10010.0, 9990.0, 100000.00, 1000.0, 0.001},
45 { 100000.0, 10.0, 100010.0, 99990.0, 1000000.00, 10000.0, 0.0001},
46 { 1000000.0, 10.0, 1000010.0, 999990.0, 10000000.00, 100000.0, 0.00001},
47 {10000000.0, 10.0,10000010.0, 9999990.0,100000000.00, 1000000.0, 0.000001},
48 { 0x100, 0x10, 0x110, 0xf0, 0x1000, 0x10, 0.0625},
49 { 0x1000, 0x10, 0x1010, 0xff0, 0x10000, 0x100, 0.00390625},
50 { 0x10000, 0x10, 0x10010, 0xfff0, 0x100000, 0x1000, 0.00024414},
51 { 0x100000, 0x10, 0x100010, 0xffff0, 0x1000000, 0x10000, 0 /* ignore */},
52 { 0x1000000, 0x10, 0x1000010, 0xfffff0, 0x10000000, 0x100000, 0 /* ignore */},
53 {0x10000000, 0x10,0x10000010, 0xffffff0, (float)0x10000000*0x10,
54 0x1000000, 0 /* ignore */},
57 XDATA int tests=0, errors=0;
59 char compare (float is, float should) {
60 float diff = should ? is/should : 0;
62 DEBUG(printf (" %1.3f (%f %f) ", is, should, diff));
65 DEBUG(printf ("IGNORED!\n"));
69 // skip the fp roundoff errors
70 if (diff>0.999999 && diff<1.00001) {
71 DEBUG(printf ("OK!\n"));
76 DEBUG(printf ("FAIL!\n"));
86 int t = sizeof(cases)/sizeof(cases[0]);
92 result=cases[i].left+cases[i].right;
93 DEBUG(printf ("%1.3f + %1.3f =", cases[i].left, cases[i].right));
94 compare(result, cases[i].add);
98 result=cases[i].left-cases[i].right;
99 DEBUG(printf ("%1.3f - %1.3f =", cases[i].left, cases[i].right));
100 compare(result, cases[i].sub);
104 result=cases[i].left*cases[i].right;
105 DEBUG(printf ("%1.3f * %1.3f =", cases[i].left, cases[i].right));
106 compare(result, cases[i].mul);
110 result=cases[i].left/cases[i].right;
111 DEBUG(printf ("%1.3f / %1.3f =", cases[i].left, cases[i].right));
112 compare(result, cases[i].div);
116 result=cases[i].right/cases[i].left;
117 DEBUG(printf ("%1.3f / %1.3f =", cases[i].right, cases[i].left));
118 compare(result, cases[i].revdiv);
121 DEBUG(printf ("%d tests, %d errors\n", tests, errors));