First Commit

common/emitter/implement/helpers.h

@@ -0,0 +1,80 @@
+// SPDX-FileCopyrightText: 2002-2025 PCSX2 Dev Team
+// SPDX-License-Identifier: GPL-3.0+
+
+#pragma once
+
+namespace x86Emitter
+{
+
+// helpermess is currently broken >_<
+
+#if 0
+
+template< typename xImpl, typename T >
+void _DoI_helpermess( const xImpl& helpme, const xDirectOrIndirect& to, const xImmReg<T>& immOrReg )
+{
+	if( to.IsDirect() )
+	{
+		if( immOrReg.IsReg() )
+			helpme( to.GetReg(), immOrReg.GetReg() );
+		else
+			helpme( to.GetReg(), immOrReg.GetImm() );
+	}
+	else
+	{
+		if( immOrReg.IsReg() )
+			helpme( to.GetMem(), immOrReg.GetReg() );
+		else
+			helpme( to.GetMem(), immOrReg.GetImm() );
+	}
+}
+
+template< typename xImpl, typename T >
+void _DoI_helpermess( const xImpl& helpme, const ModSibBase& to, const xImmReg<T>& immOrReg )
+{
+	if( immOrReg.IsReg() )
+		helpme( to, immOrReg.GetReg() );
+	else
+		helpme( (ModSibStrict)to, immOrReg.GetImm() );
+}
+
+template< typename xImpl, typename T >
+void _DoI_helpermess( const xImpl& helpme, const xDirectOrIndirect<T>& to, int imm )
+{
+	if( to.IsDirect() )
+		helpme( to.GetReg(), imm );
+	else
+		helpme( to.GetMem(), imm );
+}
+
+template< typename xImpl, typename T >
+void _DoI_helpermess( const xImpl& helpme, const xDirectOrIndirect<T>& parm )
+{
+	if( parm.IsDirect() )
+		helpme( parm.GetReg() );
+	else
+		helpme( parm.GetMem() );
+}
+
+template< typename xImpl, typename T >
+void _DoI_helpermess( const xImpl& helpme, const xDirectOrIndirect<T>& to, const xDirectOrIndirect<T>& from )
+{
+	if( to.IsDirect() && from.IsDirect() )
+		helpme( to.GetReg(), from.GetReg() );
+
+	else if( to.IsDirect() )
+		helpme( to.GetReg(), from.GetMem() );
+
+	else if( from.IsDirect() )
+		helpme( to.GetMem(), from.GetReg() );
+
+	else
+
+		// One of the fields needs to be direct, or else we cannot complete the operation.
+		// (intel doesn't support indirects in both fields)
+
+		pxFailDev( "Invalid asm instruction: Both operands are indirect memory addresses." );
+}
+#endif
+
+} // End namespace x86Emitter