From 5300d10cfc9927a30e525e8197dd9db2555d4819 Mon Sep 17 00:00:00 2001
From: ada-l0velace <9060550+ada-l0velace@users.noreply.github.com>
Date: Sun, 5 Jul 2026 21:10:27 +0100
Subject: [PATCH] Fix ARM64 ADRP page-relative address calculation

---
 Cpp2IL.Core/InstructionSets/NewArmV8InstructionSet.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Cpp2IL.Core/InstructionSets/NewArmV8InstructionSet.cs b/Cpp2IL.Core/InstructionSets/NewArmV8InstructionSet.cs
index 6a433217..4dd67722 100644
--- a/Cpp2IL.Core/InstructionSets/NewArmV8InstructionSet.cs
+++ b/Cpp2IL.Core/InstructionSets/NewArmV8InstructionSet.cs
@@ -217,7 +217,8 @@ void AddCall(MethodAnalysisContext context, object? returnRegister2, ulong addre
             case Arm64Mnemonic.ADRP:
                 //Just handle as a move
                 Add(address, OpCode.Move, ConvertOperand(instruction, 0), ConvertOperand(instruction, 1));
-                adrpOffsets[instruction.Op0Reg] = (ulong)instruction.Op1Imm;
+                var pageAddress = address & ~0xFFFUL;
+                adrpOffsets[instruction.Op0Reg] = (ulong)((long)pageAddress + instruction.Op1Imm);
                 break;
             case Arm64Mnemonic.LDP when instruction.Op2Kind == Arm64OperandKind.Memory:
                 //LDP (dest1, dest2, [mem]) - basically just treat as two loads, with the second offset by the length of the first