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shader: allow larger bounded Gen5 programs (#514)

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jute-ado
2026-07-22 13:46:15 +02:00
committed by GitHub
parent 2a4da8c0a9
commit 5f97031df5
2 changed files with 20 additions and 2 deletions
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src/SharpEmu.ShaderCompiler/Gen5ShaderTranslator.cs
+1 -1
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@@ -80,7 +80,7 @@ public static class Gen5ShaderTranslator
public static bool IsScalarConsumed(ulong[] mask, uint register) =>
register < 256 && (mask[register >> 6] & (1UL << (int)(register & 63))) != 0;
private const int MaxInstructions = 4096;
private const int MaxInstructions = 16384;
private const uint PsUserDataRegister = 0x0C;
private const uint VsUserDataRegister = 0x4C;
private const uint GsUserDataRegister = 0x8C;
tests/SharpEmu.Libs.Tests/Agc/Gen5ShaderDecoderBoundaryTests.cs
+19 -1
View File
@@ -13,7 +13,8 @@ public sealed class Gen5ShaderDecoderBoundaryTests
private const ulong ShaderAddress = 0x1_0000_0000;
private const uint Export = 0xF8000000;
private const uint Nop = 0xBF800000;
private const int MaximumInstructionCount = 4096;
private const uint EndPgm = 0xBF810000;
private const int MaximumInstructionCount = 16384;
[Fact]
public void MissingAddress_IsRejectedWithoutReadingGuestMemory()
@@ -99,6 +100,23 @@ public sealed class Gen5ShaderDecoderBoundaryTests
memory.Reads[^1]);
}
[Fact]
public void ProgramMayEndAfterPreviousDecoderLimit()
{
const int previousDecoderLimit = 4096;
var words = new uint[previousDecoderLimit + 1];
Array.Fill(words, Nop);
words[^1] = EndPgm;
var memory = RecordingCpuMemory.FromWords(ShaderAddress, words);
var decoded = Decode(memory, ShaderAddress, out var program, out var error);
Assert.True(decoded, error);
Assert.Equal(words.Length, program.Instructions.Count);
Assert.Equal("SEndpgm", program.Instructions[^1].Opcode);
Assert.Equal(words.Length, memory.Reads.Count);
}
private static bool Decode(
RecordingCpuMemory memory,
ulong address,