Porting assembly code from IA-32 to Intel 64 cannot be done by simply copying the code.Replace assembly statements with either Pascal code or functions written completely in assembly. Mixing of assembly statements with Pascal code is not supported in 64-bit applications.If your application contains inline assembly (ASM) code, you need to examine the ASM code and make the following changes: On the 32-bit Windows platform, the NativeInt size is still 4 bytes.On the 64-bit Windows platform, the NativeInt size is now 8 bytes.On the 64-bit Windows platform, integer remains 4 bytes.Move(FSelection, FSelection, (FSelectionCount - Index - 1) * 4) įor more information about using pointers in a 64-bit Windows applications, see the MSDN article, Rules for Using Pointers. Move(FSelection, FSelection, (FSelectionCount - Index - 1) * SizeOf(Pointer)) You might need to make adjustments in your code. If you increment pointers, be aware that the behavior of a 64-bit pointer might not be the same as the behavior of a 32-bit pointer.SizeOf(Pointer)=SizeOf(Integer/Cardinal/Longint) On the 64-bit Windows platform, a pointer is 8 bytes.On the 32-bit Windows platform, a pointer is 4 bytes.The size of all pointers has changed, as follows:.

You should review pointer operations in your code base.

Windows 10 32 bits para 64 bits