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Refactor CPUID brand string leaf handling

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Replaced hardcoded register constants for CPUID leaves 0x80000002-0x80000004 with a shared helper that builds each 16-byte chunk from a single `ProcessorBrandString` value (`Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz`). This keeps leaf output consistent, correctly little-endian encoded. as previously the hand-written one contained misspellings.
This commit is contained in:
AdvDebug
2026-08-07 14:14:15 +03:00
parent 153a8b1e8d
commit c8e6e143cb
1 changed files with 19 additions and 16 deletions
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Brovan/Core/Emulation/BinaryEmulator.cs
+19 -16
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@@ -1621,6 +1621,24 @@ namespace Brovan.Core.Emulation
_emulator.StopEmulation();
}
private const string ProcessorBrandString = "Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz";
private static void ReadProcessorBrandLeaf(uint Leaf, out uint Eax, out uint Ebx, out uint Ecx, out uint Edx)
{
Span<byte> Chunk = stackalloc byte[16];
int BaseOffset = (int)(Leaf - 0x80000002u) * 16;
for (int Index = 0; Index < Chunk.Length; Index++)
{
int StringIndex = BaseOffset + Index;
Chunk[Index] = StringIndex < ProcessorBrandString.Length ? (byte)ProcessorBrandString[StringIndex] : (byte)0;
}
Eax = BinaryPrimitives.ReadUInt32LittleEndian(Chunk);
Ebx = BinaryPrimitives.ReadUInt32LittleEndian(Chunk.Slice(4));
Ecx = BinaryPrimitives.ReadUInt32LittleEndian(Chunk.Slice(8));
Edx = BinaryPrimitives.ReadUInt32LittleEndian(Chunk.Slice(12));
}
/// <summary>
/// CPUD Handler.
/// </summary>
@@ -1739,24 +1757,9 @@ namespace Brovan.Core.Emulation
break;
case 0x80000002:
out_eax = 0x65746E49;
out_ebx = 0x2952286C;
out_ecx = 0x6F432032;
out_edx = 0x4D542865;
break;
case 0x80000003:
out_eax = 0x69422029;
out_ebx = 0x49552067;
out_ecx = 0x20203233;
out_edx = 0x2E303047;
break;
case 0x80000004:
out_eax = 0x0000007A;
out_ebx = 0;
out_ecx = 0;
out_edx = 0;
ReadProcessorBrandLeaf(Leaf, out out_eax, out out_ebx, out out_ecx, out out_edx);
break;
case 0x80000007: