1// Disable formatting to avoid unnecessary source repository bloat.
2// zig fmt: off
3const testing = @import("std").testing;
4const builtin = @import("builtin");
5const __udivmodsi4 = @import("int.zig").__udivmodsi4;
6
7fn test__udivmodsi4(a: u32, b: u32, expected_q: u32, expected_r: u32) !void {
8 var r: u32 = undefined;
9 const q = __udivmodsi4(a, b, &r);
10 try testing.expectEqual(expected_q, q);
11 try testing.expectEqual(expected_r, r);
12}
13
14test "udivmodsi4" {
15 for (cases) |case| {
16 try test__udivmodsi4(case[0], case[1], case[2], case[3]);
17 }
18}
19
20const cases = [_][4]u32{
21 [_]u32{0x00000000, 0x00000001, 0x00000000, 0x00000000},
22 [_]u32{0x00000000, 0x00000002, 0x00000000, 0x00000000},
23 [_]u32{0x00000000, 0x00000003, 0x00000000, 0x00000000},
24 [_]u32{0x00000000, 0x00000010, 0x00000000, 0x00000000},
25 [_]u32{0x00000000, 0x078644FA, 0x00000000, 0x00000000},
26 [_]u32{0x00000000, 0x0747AE14, 0x00000000, 0x00000000},
27 [_]u32{0x00000000, 0x7FFFFFFF, 0x00000000, 0x00000000},
28 [_]u32{0x00000000, 0x80000000, 0x00000000, 0x00000000},
29 [_]u32{0x00000000, 0xFFFFFFFD, 0x00000000, 0x00000000},
30 [_]u32{0x00000000, 0xFFFFFFFE, 0x00000000, 0x00000000},
31 [_]u32{0x00000000, 0xFFFFFFFF, 0x00000000, 0x00000000},
32 [_]u32{0x00000001, 0x00000001, 0x00000001, 0x00000000}, // 1/1 => q=1, r=0
33 [_]u32{0x00000001, 0x00000002, 0x00000000, 0x00000001},
34 [_]u32{0x00000001, 0x00000003, 0x00000000, 0x00000001},
35 [_]u32{0x00000001, 0x00000010, 0x00000000, 0x00000001},
36 [_]u32{0x00000001, 0x078644FA, 0x00000000, 0x00000001},
37 [_]u32{0x00000001, 0x0747AE14, 0x00000000, 0x00000001},
38 [_]u32{0x00000001, 0x7FFFFFFF, 0x00000000, 0x00000001},
39 [_]u32{0x00000001, 0x80000000, 0x00000000, 0x00000001},
40 [_]u32{0x00000001, 0xFFFFFFFD, 0x00000000, 0x00000001},
41 [_]u32{0x00000001, 0xFFFFFFFE, 0x00000000, 0x00000001},
42 [_]u32{0x00000001, 0xFFFFFFFF, 0x00000000, 0x00000001},
43 [_]u32{0x00000001, 0x00000000, 0x00000000, 0x00000001},
44 [_]u32{0x00000001, 0x00000001, 0x00000001, 0x00000000},
45 [_]u32{0x00000001, 0x00000002, 0x00000000, 0x00000001},
46 [_]u32{0x00000001, 0x00000003, 0x00000000, 0x00000001},
47 [_]u32{0x00000001, 0x00000010, 0x00000000, 0x00000001},
48 [_]u32{0x00000001, 0x078644FA, 0x00000000, 0x00000001},
49 [_]u32{0x00000001, 0x0747AE14, 0x00000000, 0x00000001},
50 [_]u32{0x00000001, 0x7FFFFFFF, 0x00000000, 0x00000001},
51 [_]u32{0x00000001, 0x80000000, 0x00000000, 0x00000001},
52 [_]u32{0x00000001, 0xFFFFFFFD, 0x00000000, 0x00000001},
53 [_]u32{0x00000001, 0xFFFFFFFE, 0x00000000, 0x00000001},
54 [_]u32{0x00000001, 0xFFFFFFFF, 0x00000000, 0x00000001},
55 [_]u32{0x00000002, 0x00000001, 0x00000002, 0x00000000},
56 [_]u32{0x00000002, 0x00000002, 0x00000001, 0x00000000},
57 [_]u32{0x00000002, 0x00000003, 0x00000000, 0x00000002},
58 [_]u32{0x00000002, 0x00000010, 0x00000000, 0x00000002},
59 [_]u32{0x00000002, 0x078644FA, 0x00000000, 0x00000002},
60 [_]u32{0x00000002, 0x0747AE14, 0x00000000, 0x00000002},
61 [_]u32{0x00000002, 0x7FFFFFFF, 0x00000000, 0x00000002},
62 [_]u32{0x00000002, 0x80000000, 0x00000000, 0x00000002},
63 [_]u32{0x00000002, 0xFFFFFFFD, 0x00000000, 0x00000002},
64 [_]u32{0x00000002, 0xFFFFFFFE, 0x00000000, 0x00000002},
65 [_]u32{0x00000002, 0xFFFFFFFF, 0x00000000, 0x00000002},
66
67 [_]u32{0x00000010, 0x00000001, 0x00000010, 0x00000000},
68 [_]u32{0x00000010, 0x00000002, 0x00000008, 0x00000000},
69 [_]u32{0x00000010, 0x00000003, 0x00000005, 0x00000001},
70 [_]u32{0x00000010, 0x00000010, 0x00000001, 0x00000000},
71 [_]u32{0x00000010, 0x078644FA, 0x00000000, 0x00000010},
72 [_]u32{0x00000010, 0x0747AE14, 0x00000000, 0x00000010},
73 [_]u32{0x00000010, 0x7FFFFFFF, 0x00000000, 0x00000010},
74 [_]u32{0x00000010, 0x80000000, 0x00000000, 0x00000010},
75 [_]u32{0x00000010, 0xFFFFFFFD, 0x00000000, 0x00000010},
76 [_]u32{0x00000010, 0xFFFFFFFE, 0x00000000, 0x00000010},
77 [_]u32{0x00000010, 0xFFFFFFFF, 0x00000000, 0x00000010},
78
79 [_]u32{0x078644FA, 0x00000001, 0x078644FA, 0x00000000},
80 [_]u32{0x078644FA, 0x00000002, 0x03C3227D, 0x00000000},
81 [_]u32{0x078644FA, 0x00000003, 0x028216FE, 0x00000000},
82 [_]u32{0x078644FA, 0x00000010, 0x0078644F, 0x0000000A},
83 [_]u32{0x078644FA, 0x078644FA, 0x00000001, 0x00000000},
84 [_]u32{0x078644FA, 0x0747AE14, 0x00000001, 0x003E96E6},
85 [_]u32{0x078644FA, 0x7FFFFFFF, 0x00000000, 0x078644FA},
86 [_]u32{0x078644FA, 0x80000000, 0x00000000, 0x078644FA},
87 [_]u32{0x078644FA, 0xFFFFFFFD, 0x00000000, 0x078644FA},
88 [_]u32{0x078644FA, 0xFFFFFFFE, 0x00000000, 0x078644FA},
89 [_]u32{0x078644FA, 0xFFFFFFFF, 0x00000000, 0x078644FA},
90 [_]u32{0x0747AE14, 0x00000001, 0x0747AE14, 0x00000000},
91 [_]u32{0x0747AE14, 0x00000002, 0x03A3D70A, 0x00000000},
92 [_]u32{0x0747AE14, 0x00000003, 0x026D3A06, 0x00000002},
93 [_]u32{0x0747AE14, 0x00000010, 0x00747AE1, 0x00000004},
94 [_]u32{0x0747AE14, 0x078644FA, 0x00000000, 0x0747AE14},
95 [_]u32{0x0747AE14, 0x0747AE14, 0x00000001, 0x00000000},
96 [_]u32{0x0747AE14, 0x7FFFFFFF, 0x00000000, 0x0747AE14},
97 [_]u32{0x0747AE14, 0x80000000, 0x00000000, 0x0747AE14},
98 [_]u32{0x0747AE14, 0xFFFFFFFD, 0x00000000, 0x0747AE14},
99 [_]u32{0x0747AE14, 0xFFFFFFFE, 0x00000000, 0x0747AE14},
100 [_]u32{0x0747AE14, 0xFFFFFFFF, 0x00000000, 0x0747AE14},
101 [_]u32{0x7FFFFFFF, 0x00000001, 0x7FFFFFFF, 0x00000000},
102 [_]u32{0x7FFFFFFF, 0x00000002, 0x3FFFFFFF, 0x00000001},
103 [_]u32{0x7FFFFFFF, 0x00000003, 0x2AAAAAAA, 0x00000001},
104 [_]u32{0x7FFFFFFF, 0x00000010, 0x07FFFFFF, 0x0000000F},
105 [_]u32{0x7FFFFFFF, 0x078644FA, 0x00000011, 0x00156B65},
106 [_]u32{0x7FFFFFFF, 0x0747AE14, 0x00000011, 0x043D70AB},
107 [_]u32{0x7FFFFFFF, 0x7FFFFFFF, 0x00000001, 0x00000000},
108 [_]u32{0x7FFFFFFF, 0x80000000, 0x00000000, 0x7FFFFFFF},
109 [_]u32{0x7FFFFFFF, 0xFFFFFFFD, 0x00000000, 0x7FFFFFFF},
110 [_]u32{0x7FFFFFFF, 0xFFFFFFFE, 0x00000000, 0x7FFFFFFF},
111 [_]u32{0x7FFFFFFF, 0xFFFFFFFF, 0x00000000, 0x7FFFFFFF},
112 [_]u32{0x80000000, 0x00000001, 0x80000000, 0x00000000},
113 [_]u32{0x80000000, 0x00000002, 0x40000000, 0x00000000},
114 [_]u32{0x80000000, 0x00000003, 0x2AAAAAAA, 0x00000002},
115 [_]u32{0x80000000, 0x00000010, 0x08000000, 0x00000000},
116 [_]u32{0x80000000, 0x078644FA, 0x00000011, 0x00156B66},
117 [_]u32{0x80000000, 0x0747AE14, 0x00000011, 0x043D70AC},
118 [_]u32{0x80000000, 0x7FFFFFFF, 0x00000001, 0x00000001},
119 [_]u32{0x80000000, 0x80000000, 0x00000001, 0x00000000},
120 [_]u32{0x80000000, 0xFFFFFFFD, 0x00000000, 0x80000000},
121 [_]u32{0x80000000, 0xFFFFFFFE, 0x00000000, 0x80000000},
122 [_]u32{0x80000000, 0xFFFFFFFF, 0x00000000, 0x80000000},
123 [_]u32{0xFFFFFFFD, 0x00000001, 0xFFFFFFFD, 0x00000000},
124 [_]u32{0xFFFFFFFD, 0x00000002, 0x7FFFFFFE, 0x00000001},
125 [_]u32{0xFFFFFFFD, 0x00000003, 0x55555554, 0x00000001},
126 [_]u32{0xFFFFFFFD, 0x00000010, 0x0FFFFFFF, 0x0000000D},
127 [_]u32{0xFFFFFFFD, 0x078644FA, 0x00000022, 0x002AD6C9},
128 [_]u32{0xFFFFFFFD, 0x0747AE14, 0x00000023, 0x01333341},
129 [_]u32{0xFFFFFFFD, 0x7FFFFFFF, 0x00000001, 0x7FFFFFFE},
130 [_]u32{0xFFFFFFFD, 0x80000000, 0x00000001, 0x7FFFFFFD},
131 [_]u32{0xFFFFFFFD, 0xFFFFFFFD, 0x00000001, 0x00000000},
132 [_]u32{0xFFFFFFFD, 0xFFFFFFFE, 0x00000000, 0xFFFFFFFD},
133 [_]u32{0xFFFFFFFD, 0xFFFFFFFF, 0x00000000, 0xFFFFFFFD},
134 [_]u32{0xFFFFFFFE, 0x00000001, 0xFFFFFFFE, 0x00000000},
135 [_]u32{0xFFFFFFFE, 0x00000002, 0x7FFFFFFF, 0x00000000},
136 [_]u32{0xFFFFFFFE, 0x00000003, 0x55555554, 0x00000002},
137 [_]u32{0xFFFFFFFE, 0x00000010, 0x0FFFFFFF, 0x0000000E},
138 [_]u32{0xFFFFFFFE, 0x078644FA, 0x00000022, 0x002AD6CA},
139 [_]u32{0xFFFFFFFE, 0x0747AE14, 0x00000023, 0x01333342},
140 [_]u32{0xFFFFFFFE, 0x7FFFFFFF, 0x00000002, 0x00000000},
141 [_]u32{0xFFFFFFFE, 0x80000000, 0x00000001, 0x7FFFFFFE},
142 [_]u32{0xFFFFFFFE, 0xFFFFFFFD, 0x00000001, 0x00000001},
143 [_]u32{0xFFFFFFFE, 0xFFFFFFFE, 0x00000001, 0x00000000},
144 [_]u32{0xFFFFFFFE, 0xFFFFFFFF, 0x00000000, 0xFFFFFFFE},
145 [_]u32{0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000000},
146 [_]u32{0xFFFFFFFF, 0x00000002, 0x7FFFFFFF, 0x00000001},
147 [_]u32{0xFFFFFFFF, 0x00000003, 0x55555555, 0x00000000},
148 [_]u32{0xFFFFFFFF, 0x00000010, 0x0FFFFFFF, 0x0000000F},
149 [_]u32{0xFFFFFFFF, 0x078644FA, 0x00000022, 0x002AD6CB},
150 [_]u32{0xFFFFFFFF, 0x0747AE14, 0x00000023, 0x01333343},
151 [_]u32{0xFFFFFFFF, 0x7FFFFFFF, 0x00000002, 0x00000001},
152 [_]u32{0xFFFFFFFF, 0x80000000, 0x00000001, 0x7FFFFFFF},
153 [_]u32{0xFFFFFFFF, 0xFFFFFFFD, 0x00000001, 0x00000002},
154 [_]u32{0xFFFFFFFF, 0xFFFFFFFE, 0x00000001, 0x00000001},
155 [_]u32{0xFFFFFFFF, 0xFFFFFFFF, 0x00000001, 0x00000000},
156};