[dxso] Clamp Exp when fast float emulation is enabled

doitsujin · Feb 6, 2024 · e9a0fec · e9a0fec
1 parent fae7840
commit e9a0fec
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/dxso/dxso_compiler.cpp b/src/dxso/dxso_compiler.cpp
@@ -2029,12 +2029,22 @@ namespace dxvk {
             result.id = resultIndices[0];
           else
             result.id = m_module.opCompositeConstruct(typeId, result.type.ccount, resultIndices.data());
+
+        if (m_moduleInfo.options.d3d9FloatEmulation == D3D9FloatEmulation::Enabled) {
+          result.id = m_module.opNMin(typeId, result.id,
+            m_module.constfReplicant(FLT_MAX, result.type.ccount));
+        }
           break;
         }
         [[fallthrough]];
       case DxsoOpcode::Exp:
         result.id = m_module.opExp2(typeId,
           emitRegisterLoad(src[0], mask).id);
+
+        if (m_moduleInfo.options.d3d9FloatEmulation == D3D9FloatEmulation::Enabled) {
+          result.id = m_module.opNMin(typeId, result.id,
+            m_module.constfReplicant(FLT_MAX, result.type.ccount));
+        }
         break;
       case DxsoOpcode::Pow: {
         uint32_t base = emitRegisterLoad(src[0], mask).id;