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-rw-r--r--src/Ryujinx.Tests/Cpu/CpuTest32.cs624
1 files changed, 624 insertions, 0 deletions
diff --git a/src/Ryujinx.Tests/Cpu/CpuTest32.cs b/src/Ryujinx.Tests/Cpu/CpuTest32.cs
new file mode 100644
index 00000000..47dc9f8a
--- /dev/null
+++ b/src/Ryujinx.Tests/Cpu/CpuTest32.cs
@@ -0,0 +1,624 @@
+using ARMeilleure;
+using ARMeilleure.State;
+using ARMeilleure.Translation;
+using NUnit.Framework;
+using Ryujinx.Cpu.Jit;
+using Ryujinx.Memory;
+using Ryujinx.Tests.Unicorn;
+using System;
+using MemoryPermission = Ryujinx.Tests.Unicorn.MemoryPermission;
+
+namespace Ryujinx.Tests.Cpu
+{
+ [TestFixture]
+ public class CpuTest32
+ {
+ protected const uint Size = 0x1000;
+ protected const uint CodeBaseAddress = 0x1000;
+ protected const uint DataBaseAddress = CodeBaseAddress + Size;
+
+ private uint _currAddress;
+
+ private MemoryBlock _ram;
+
+ private MemoryManager _memory;
+
+ private ExecutionContext _context;
+
+ private CpuContext _cpuContext;
+ private UnicornAArch32 _unicornEmu;
+
+ private bool _usingMemory;
+
+ [SetUp]
+ public void Setup()
+ {
+ _currAddress = CodeBaseAddress;
+
+ _ram = new MemoryBlock(Size * 2);
+ _memory = new MemoryManager(_ram, 1ul << 16);
+ _memory.IncrementReferenceCount();
+ _memory.Map(CodeBaseAddress, 0, Size * 2, MemoryMapFlags.Private);
+
+ _context = CpuContext.CreateExecutionContext();
+ _context.IsAarch32 = true;
+ Translator.IsReadyForTranslation.Set();
+
+ _cpuContext = new CpuContext(_memory, for64Bit: false);
+
+ // Prevent registering LCQ functions in the FunctionTable to avoid initializing and populating the table,
+ // which improves test durations.
+ Optimizations.AllowLcqInFunctionTable = false;
+ Optimizations.UseUnmanagedDispatchLoop = false;
+
+ _unicornEmu = new UnicornAArch32();
+ _unicornEmu.MemoryMap(CodeBaseAddress, Size, MemoryPermission.Read | MemoryPermission.Exec);
+ _unicornEmu.MemoryMap(DataBaseAddress, Size, MemoryPermission.Read | MemoryPermission.Write);
+ _unicornEmu.PC = CodeBaseAddress;
+ }
+
+ [TearDown]
+ public void Teardown()
+ {
+ _unicornEmu.Dispose();
+ _unicornEmu = null;
+
+ _memory.DecrementReferenceCount();
+ _context.Dispose();
+ _ram.Dispose();
+
+ _memory = null;
+ _context = null;
+ _cpuContext = null;
+ _unicornEmu = null;
+
+ _usingMemory = false;
+ }
+
+ protected void Reset()
+ {
+ Teardown();
+ Setup();
+ }
+
+ protected void Opcode(uint opcode)
+ {
+ _memory.Write(_currAddress, opcode);
+
+ _unicornEmu.MemoryWrite32(_currAddress, opcode);
+
+ _currAddress += 4;
+ }
+
+ protected void ThumbOpcode(ushort opcode)
+ {
+ _memory.Write(_currAddress, opcode);
+
+ _unicornEmu.MemoryWrite16(_currAddress, opcode);
+
+ _currAddress += 2;
+ }
+
+ protected ExecutionContext GetContext() => _context;
+
+ protected void SetContext(uint r0 = 0,
+ uint r1 = 0,
+ uint r2 = 0,
+ uint r3 = 0,
+ uint sp = 0,
+ V128 v0 = default,
+ V128 v1 = default,
+ V128 v2 = default,
+ V128 v3 = default,
+ V128 v4 = default,
+ V128 v5 = default,
+ V128 v14 = default,
+ V128 v15 = default,
+ bool saturation = false,
+ bool overflow = false,
+ bool carry = false,
+ bool zero = false,
+ bool negative = false,
+ int fpscr = 0,
+ bool thumb = false)
+ {
+ _context.SetX(0, r0);
+ _context.SetX(1, r1);
+ _context.SetX(2, r2);
+ _context.SetX(3, r3);
+ _context.SetX(13, sp);
+
+ _context.SetV(0, v0);
+ _context.SetV(1, v1);
+ _context.SetV(2, v2);
+ _context.SetV(3, v3);
+ _context.SetV(4, v4);
+ _context.SetV(5, v5);
+ _context.SetV(14, v14);
+ _context.SetV(15, v15);
+
+ _context.SetPstateFlag(PState.QFlag, saturation);
+ _context.SetPstateFlag(PState.VFlag, overflow);
+ _context.SetPstateFlag(PState.CFlag, carry);
+ _context.SetPstateFlag(PState.ZFlag, zero);
+ _context.SetPstateFlag(PState.NFlag, negative);
+
+ _context.Fpscr = (FPSCR)fpscr;
+
+ _context.SetPstateFlag(PState.TFlag, thumb);
+
+ _unicornEmu.R[0] = r0;
+ _unicornEmu.R[1] = r1;
+ _unicornEmu.R[2] = r2;
+ _unicornEmu.R[3] = r3;
+ _unicornEmu.SP = sp;
+
+ _unicornEmu.Q[0] = V128ToSimdValue(v0);
+ _unicornEmu.Q[1] = V128ToSimdValue(v1);
+ _unicornEmu.Q[2] = V128ToSimdValue(v2);
+ _unicornEmu.Q[3] = V128ToSimdValue(v3);
+ _unicornEmu.Q[4] = V128ToSimdValue(v4);
+ _unicornEmu.Q[5] = V128ToSimdValue(v5);
+ _unicornEmu.Q[14] = V128ToSimdValue(v14);
+ _unicornEmu.Q[15] = V128ToSimdValue(v15);
+
+ _unicornEmu.QFlag = saturation;
+ _unicornEmu.OverflowFlag = overflow;
+ _unicornEmu.CarryFlag = carry;
+ _unicornEmu.ZeroFlag = zero;
+ _unicornEmu.NegativeFlag = negative;
+
+ _unicornEmu.Fpscr = fpscr;
+
+ _unicornEmu.ThumbFlag = thumb;
+ }
+
+ protected void ExecuteOpcodes(bool runUnicorn = true)
+ {
+ _cpuContext.Execute(_context, CodeBaseAddress);
+
+ if (runUnicorn)
+ {
+ _unicornEmu.RunForCount((_currAddress - CodeBaseAddress - 4) / 4);
+ }
+ }
+
+ protected ExecutionContext SingleOpcode(uint opcode,
+ uint r0 = 0,
+ uint r1 = 0,
+ uint r2 = 0,
+ uint r3 = 0,
+ uint sp = 0,
+ V128 v0 = default,
+ V128 v1 = default,
+ V128 v2 = default,
+ V128 v3 = default,
+ V128 v4 = default,
+ V128 v5 = default,
+ V128 v14 = default,
+ V128 v15 = default,
+ bool saturation = false,
+ bool overflow = false,
+ bool carry = false,
+ bool zero = false,
+ bool negative = false,
+ int fpscr = 0,
+ bool runUnicorn = true)
+ {
+ Opcode(opcode);
+ Opcode(0xE12FFF1E); // BX LR
+ SetContext(r0, r1, r2, r3, sp, v0, v1, v2, v3, v4, v5, v14, v15, saturation, overflow, carry, zero, negative, fpscr);
+ ExecuteOpcodes(runUnicorn);
+
+ return GetContext();
+ }
+
+ protected ExecutionContext SingleThumbOpcode(ushort opcode,
+ uint r0 = 0,
+ uint r1 = 0,
+ uint r2 = 0,
+ uint r3 = 0,
+ uint sp = 0,
+ bool saturation = false,
+ bool overflow = false,
+ bool carry = false,
+ bool zero = false,
+ bool negative = false,
+ int fpscr = 0,
+ bool runUnicorn = true)
+ {
+ ThumbOpcode(opcode);
+ ThumbOpcode(0x4770); // BX LR
+ SetContext(r0, r1, r2, r3, sp, default, default, default, default, default, default, default, default, saturation, overflow, carry, zero, negative, fpscr, thumb: true);
+ ExecuteOpcodes(runUnicorn);
+
+ return GetContext();
+ }
+
+ public void RunPrecomputedTestCase(PrecomputedThumbTestCase test)
+ {
+ foreach (ushort instruction in test.Instructions)
+ {
+ ThumbOpcode(instruction);
+ }
+
+ for (int i = 0; i < 15; i++)
+ {
+ GetContext().SetX(i, test.StartRegs[i]);
+ }
+
+ uint startCpsr = test.StartRegs[15];
+ for (int i = 0; i < 32; i++)
+ {
+ GetContext().SetPstateFlag((PState)i, (startCpsr & (1u << i)) != 0);
+ }
+
+ ExecuteOpcodes(runUnicorn: false);
+
+ for (int i = 0; i < 15; i++)
+ {
+ Assert.That(GetContext().GetX(i), Is.EqualTo(test.FinalRegs[i]));
+ }
+
+ uint finalCpsr = test.FinalRegs[15];
+ Assert.That(GetContext().Pstate, Is.EqualTo(finalCpsr));
+ }
+
+ public void RunPrecomputedTestCase(PrecomputedMemoryThumbTestCase test)
+ {
+ byte[] testMem = new byte[Size];
+
+ for (ulong i = 0; i < Size; i += 2)
+ {
+ testMem[i + 0] = (byte)((i + DataBaseAddress) >> 0);
+ testMem[i + 1] = (byte)((i + DataBaseAddress) >> 8);
+ }
+
+ SetWorkingMemory(0, testMem);
+
+ RunPrecomputedTestCase(new PrecomputedThumbTestCase(){
+ Instructions = test.Instructions,
+ StartRegs = test.StartRegs,
+ FinalRegs = test.FinalRegs,
+ });
+
+ foreach (var delta in test.MemoryDelta)
+ {
+ testMem[delta.Address - DataBaseAddress + 0] = (byte)(delta.Value >> 0);
+ testMem[delta.Address - DataBaseAddress + 1] = (byte)(delta.Value >> 8);
+ }
+
+ byte[] mem = _memory.GetSpan(DataBaseAddress, (int)Size).ToArray();
+
+ Assert.That(mem, Is.EqualTo(testMem), "testmem");
+ }
+
+ protected void SetWorkingMemory(uint offset, byte[] data)
+ {
+ _memory.Write(DataBaseAddress + offset, data);
+
+ _unicornEmu.MemoryWrite(DataBaseAddress + offset, data);
+
+ _usingMemory = true; // When true, CompareAgainstUnicorn checks the working memory for equality too.
+ }
+
+ /// <summary>Rounding Mode control field.</summary>
+ public enum RMode
+ {
+ /// <summary>Round to Nearest mode.</summary>
+ Rn,
+ /// <summary>Round towards Plus Infinity mode.</summary>
+ Rp,
+ /// <summary>Round towards Minus Infinity mode.</summary>
+ Rm,
+ /// <summary>Round towards Zero mode.</summary>
+ Rz
+ };
+
+ /// <summary>Floating-point Control Register.</summary>
+ protected enum Fpcr
+ {
+ /// <summary>Rounding Mode control field.</summary>
+ RMode = 22,
+ /// <summary>Flush-to-zero mode control bit.</summary>
+ Fz = 24,
+ /// <summary>Default NaN mode control bit.</summary>
+ Dn = 25,
+ /// <summary>Alternative half-precision control bit.</summary>
+ Ahp = 26
+ }
+
+ /// <summary>Floating-point Status Register.</summary>
+ [Flags]
+ protected enum Fpsr
+ {
+ None = 0,
+
+ /// <summary>Invalid Operation cumulative floating-point exception bit.</summary>
+ Ioc = 1 << 0,
+ /// <summary>Divide by Zero cumulative floating-point exception bit.</summary>
+ Dzc = 1 << 1,
+ /// <summary>Overflow cumulative floating-point exception bit.</summary>
+ Ofc = 1 << 2,
+ /// <summary>Underflow cumulative floating-point exception bit.</summary>
+ Ufc = 1 << 3,
+ /// <summary>Inexact cumulative floating-point exception bit.</summary>
+ Ixc = 1 << 4,
+ /// <summary>Input Denormal cumulative floating-point exception bit.</summary>
+ Idc = 1 << 7,
+
+ /// <summary>Cumulative saturation bit.</summary>
+ Qc = 1 << 27,
+
+ /// <summary>NZCV flags.</summary>
+ Nzcv = (1 << 31) | (1 << 30) | (1 << 29) | (1 << 28)
+ }
+
+ [Flags]
+ protected enum FpSkips
+ {
+ None = 0,
+
+ IfNaNS = 1,
+ IfNaND = 2,
+
+ IfUnderflow = 4,
+ IfOverflow = 8
+ }
+
+ protected enum FpTolerances
+ {
+ None,
+
+ UpToOneUlpsS,
+ UpToOneUlpsD
+ }
+
+ protected void CompareAgainstUnicorn(
+ Fpsr fpsrMask = Fpsr.None,
+ FpSkips fpSkips = FpSkips.None,
+ FpTolerances fpTolerances = FpTolerances.None)
+ {
+ if (fpSkips != FpSkips.None)
+ {
+ ManageFpSkips(fpSkips);
+ }
+
+ Assert.That(_context.GetX(0), Is.EqualTo(_unicornEmu.R[0]), "R0");
+ Assert.That(_context.GetX(1), Is.EqualTo(_unicornEmu.R[1]), "R1");
+ Assert.That(_context.GetX(2), Is.EqualTo(_unicornEmu.R[2]), "R2");
+ Assert.That(_context.GetX(3), Is.EqualTo(_unicornEmu.R[3]), "R3");
+ Assert.That(_context.GetX(4), Is.EqualTo(_unicornEmu.R[4]));
+ Assert.That(_context.GetX(5), Is.EqualTo(_unicornEmu.R[5]));
+ Assert.That(_context.GetX(6), Is.EqualTo(_unicornEmu.R[6]));
+ Assert.That(_context.GetX(7), Is.EqualTo(_unicornEmu.R[7]));
+ Assert.That(_context.GetX(8), Is.EqualTo(_unicornEmu.R[8]));
+ Assert.That(_context.GetX(9), Is.EqualTo(_unicornEmu.R[9]));
+ Assert.That(_context.GetX(10), Is.EqualTo(_unicornEmu.R[10]));
+ Assert.That(_context.GetX(11), Is.EqualTo(_unicornEmu.R[11]));
+ Assert.That(_context.GetX(12), Is.EqualTo(_unicornEmu.R[12]));
+ Assert.That(_context.GetX(13), Is.EqualTo(_unicornEmu.SP), "SP");
+ Assert.That(_context.GetX(14), Is.EqualTo(_unicornEmu.R[14]));
+
+ if (fpTolerances == FpTolerances.None)
+ {
+ Assert.That(V128ToSimdValue(_context.GetV(0)), Is.EqualTo(_unicornEmu.Q[0]), "V0");
+ }
+ else
+ {
+ ManageFpTolerances(fpTolerances);
+ }
+ Assert.That(V128ToSimdValue(_context.GetV(1)), Is.EqualTo(_unicornEmu.Q[1]), "V1");
+ Assert.That(V128ToSimdValue(_context.GetV(2)), Is.EqualTo(_unicornEmu.Q[2]), "V2");
+ Assert.That(V128ToSimdValue(_context.GetV(3)), Is.EqualTo(_unicornEmu.Q[3]), "V3");
+ Assert.That(V128ToSimdValue(_context.GetV(4)), Is.EqualTo(_unicornEmu.Q[4]), "V4");
+ Assert.That(V128ToSimdValue(_context.GetV(5)), Is.EqualTo(_unicornEmu.Q[5]), "V5");
+ Assert.That(V128ToSimdValue(_context.GetV(6)), Is.EqualTo(_unicornEmu.Q[6]));
+ Assert.That(V128ToSimdValue(_context.GetV(7)), Is.EqualTo(_unicornEmu.Q[7]));
+ Assert.That(V128ToSimdValue(_context.GetV(8)), Is.EqualTo(_unicornEmu.Q[8]));
+ Assert.That(V128ToSimdValue(_context.GetV(9)), Is.EqualTo(_unicornEmu.Q[9]));
+ Assert.That(V128ToSimdValue(_context.GetV(10)), Is.EqualTo(_unicornEmu.Q[10]));
+ Assert.That(V128ToSimdValue(_context.GetV(11)), Is.EqualTo(_unicornEmu.Q[11]));
+ Assert.That(V128ToSimdValue(_context.GetV(12)), Is.EqualTo(_unicornEmu.Q[12]));
+ Assert.That(V128ToSimdValue(_context.GetV(13)), Is.EqualTo(_unicornEmu.Q[13]));
+ Assert.That(V128ToSimdValue(_context.GetV(14)), Is.EqualTo(_unicornEmu.Q[14]), "V14");
+ Assert.That(V128ToSimdValue(_context.GetV(15)), Is.EqualTo(_unicornEmu.Q[15]), "V15");
+
+ Assert.Multiple(() =>
+ {
+ Assert.That(_context.GetPstateFlag(PState.GE0Flag), Is.EqualTo((_unicornEmu.CPSR & (1u << 16)) != 0), "GE0Flag");
+ Assert.That(_context.GetPstateFlag(PState.GE1Flag), Is.EqualTo((_unicornEmu.CPSR & (1u << 17)) != 0), "GE1Flag");
+ Assert.That(_context.GetPstateFlag(PState.GE2Flag), Is.EqualTo((_unicornEmu.CPSR & (1u << 18)) != 0), "GE2Flag");
+ Assert.That(_context.GetPstateFlag(PState.GE3Flag), Is.EqualTo((_unicornEmu.CPSR & (1u << 19)) != 0), "GE3Flag");
+ Assert.That(_context.GetPstateFlag(PState.QFlag), Is.EqualTo(_unicornEmu.QFlag), "QFlag");
+ Assert.That(_context.GetPstateFlag(PState.VFlag), Is.EqualTo(_unicornEmu.OverflowFlag), "VFlag");
+ Assert.That(_context.GetPstateFlag(PState.CFlag), Is.EqualTo(_unicornEmu.CarryFlag), "CFlag");
+ Assert.That(_context.GetPstateFlag(PState.ZFlag), Is.EqualTo(_unicornEmu.ZeroFlag), "ZFlag");
+ Assert.That(_context.GetPstateFlag(PState.NFlag), Is.EqualTo(_unicornEmu.NegativeFlag), "NFlag");
+ });
+
+ Assert.That((int)_context.Fpscr & (int)fpsrMask, Is.EqualTo(_unicornEmu.Fpscr & (int)fpsrMask), "Fpscr");
+
+ if (_usingMemory)
+ {
+ byte[] mem = _memory.GetSpan(DataBaseAddress, (int)Size).ToArray();
+ byte[] unicornMem = _unicornEmu.MemoryRead(DataBaseAddress, Size);
+
+ Assert.That(mem, Is.EqualTo(unicornMem), "Data");
+ }
+ }
+
+ private void ManageFpSkips(FpSkips fpSkips)
+ {
+ if (fpSkips.HasFlag(FpSkips.IfNaNS))
+ {
+ if (float.IsNaN(_unicornEmu.Q[0].AsFloat()))
+ {
+ Assert.Ignore("NaN test.");
+ }
+ }
+ else if (fpSkips.HasFlag(FpSkips.IfNaND))
+ {
+ if (double.IsNaN(_unicornEmu.Q[0].AsDouble()))
+ {
+ Assert.Ignore("NaN test.");
+ }
+ }
+
+ if (fpSkips.HasFlag(FpSkips.IfUnderflow))
+ {
+ if ((_unicornEmu.Fpscr & (int)Fpsr.Ufc) != 0)
+ {
+ Assert.Ignore("Underflow test.");
+ }
+ }
+
+ if (fpSkips.HasFlag(FpSkips.IfOverflow))
+ {
+ if ((_unicornEmu.Fpscr & (int)Fpsr.Ofc) != 0)
+ {
+ Assert.Ignore("Overflow test.");
+ }
+ }
+ }
+
+ private void ManageFpTolerances(FpTolerances fpTolerances)
+ {
+ bool IsNormalOrSubnormalS(float f) => float.IsNormal(f) || float.IsSubnormal(f);
+ bool IsNormalOrSubnormalD(double d) => double.IsNormal(d) || double.IsSubnormal(d);
+
+ if (!Is.EqualTo(_unicornEmu.Q[0]).ApplyTo(V128ToSimdValue(_context.GetV(0))).IsSuccess)
+ {
+ if (fpTolerances == FpTolerances.UpToOneUlpsS)
+ {
+ if (IsNormalOrSubnormalS(_unicornEmu.Q[0].AsFloat()) &&
+ IsNormalOrSubnormalS(_context.GetV(0).As<float>()))
+ {
+ Assert.Multiple(() =>
+ {
+ Assert.That(_context.GetV(0).Extract<float>(0),
+ Is.EqualTo(_unicornEmu.Q[0].GetFloat(0)).Within(1).Ulps, "V0[0]");
+ Assert.That(_context.GetV(0).Extract<float>(1),
+ Is.EqualTo(_unicornEmu.Q[0].GetFloat(1)).Within(1).Ulps, "V0[1]");
+ Assert.That(_context.GetV(0).Extract<float>(2),
+ Is.EqualTo(_unicornEmu.Q[0].GetFloat(2)).Within(1).Ulps, "V0[2]");
+ Assert.That(_context.GetV(0).Extract<float>(3),
+ Is.EqualTo(_unicornEmu.Q[0].GetFloat(3)).Within(1).Ulps, "V0[3]");
+ });
+
+ Console.WriteLine(fpTolerances);
+ }
+ else
+ {
+ Assert.That(V128ToSimdValue(_context.GetV(0)), Is.EqualTo(_unicornEmu.Q[0]));
+ }
+ }
+
+ if (fpTolerances == FpTolerances.UpToOneUlpsD)
+ {
+ if (IsNormalOrSubnormalD(_unicornEmu.Q[0].AsDouble()) &&
+ IsNormalOrSubnormalD(_context.GetV(0).As<double>()))
+ {
+ Assert.Multiple(() =>
+ {
+ Assert.That(_context.GetV(0).Extract<double>(0),
+ Is.EqualTo(_unicornEmu.Q[0].GetDouble(0)).Within(1).Ulps, "V0[0]");
+ Assert.That(_context.GetV(0).Extract<double>(1),
+ Is.EqualTo(_unicornEmu.Q[0].GetDouble(1)).Within(1).Ulps, "V0[1]");
+ });
+
+ Console.WriteLine(fpTolerances);
+ }
+ else
+ {
+ Assert.That(V128ToSimdValue(_context.GetV(0)), Is.EqualTo(_unicornEmu.Q[0]));
+ }
+ }
+ }
+ }
+
+ private static SimdValue V128ToSimdValue(V128 value)
+ {
+ return new SimdValue(value.Extract<ulong>(0), value.Extract<ulong>(1));
+ }
+
+ protected static V128 MakeVectorScalar(float value) => new V128(value);
+ protected static V128 MakeVectorScalar(double value) => new V128(value);
+
+ protected static V128 MakeVectorE0(ulong e0) => new V128(e0, 0);
+ protected static V128 MakeVectorE1(ulong e1) => new V128(0, e1);
+
+ protected static V128 MakeVectorE0E1(ulong e0, ulong e1) => new V128(e0, e1);
+
+ protected static V128 MakeVectorE0E1E2E3(uint e0, uint e1, uint e2, uint e3)
+ {
+ return new V128(e0, e1, e2, e3);
+ }
+
+ protected static ulong GetVectorE0(V128 vector) => vector.Extract<ulong>(0);
+ protected static ulong GetVectorE1(V128 vector) => vector.Extract<ulong>(1);
+
+ protected static ushort GenNormalH()
+ {
+ uint rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextUShort();
+ while ((rnd & 0x7C00u) == 0u ||
+ (~rnd & 0x7C00u) == 0u);
+
+ return (ushort)rnd;
+ }
+
+ protected static ushort GenSubnormalH()
+ {
+ uint rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextUShort();
+ while ((rnd & 0x03FFu) == 0u);
+
+ return (ushort)(rnd & 0x83FFu);
+ }
+
+ protected static uint GenNormalS()
+ {
+ uint rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextUInt();
+ while ((rnd & 0x7F800000u) == 0u ||
+ (~rnd & 0x7F800000u) == 0u);
+
+ return rnd;
+ }
+
+ protected static uint GenSubnormalS()
+ {
+ uint rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextUInt();
+ while ((rnd & 0x007FFFFFu) == 0u);
+
+ return rnd & 0x807FFFFFu;
+ }
+
+ protected static ulong GenNormalD()
+ {
+ ulong rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextULong();
+ while ((rnd & 0x7FF0000000000000ul) == 0ul ||
+ (~rnd & 0x7FF0000000000000ul) == 0ul);
+
+ return rnd;
+ }
+
+ protected static ulong GenSubnormalD()
+ {
+ ulong rnd;
+
+ do rnd = TestContext.CurrentContext.Random.NextULong();
+ while ((rnd & 0x000FFFFFFFFFFFFFul) == 0ul);
+
+ return rnd & 0x800FFFFFFFFFFFFFul;
+ }
+ }
+} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-08 21:55:11 +0000