there's actually code that's broken on 64bit, this is probably why @GnoStiC made the type 64bit on 64bit archs:
https://github.com/tonioni/WinUAE/blob/master/enforcer.cpp#L432
```c
	enforcer_display_hit (_T("LONG READ from"),(uae_u32)(regs.pc_p - NMEM_OFFSET),addr);
```
here regs.pc_p (which is a ```uae_u8*``` is truncated to 32bit.
this will cause breakage when the pointer happens to be > UINT_MAX.
similar code can be found in these functions
```
src/enforcer.c:453:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'chipmem_bget2':
src/enforcer.c:467:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'chipmem_lput2':
src/enforcer.c:485:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'chipmem_wput2':
src/enforcer.c:505:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'chipmem_bput2':
src/enforcer.c:521:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_lget2':
src/enforcer.c:547:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_wget2':
src/enforcer.c:572:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_bget2':
src/enforcer.c:583:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_lput2':
src/enforcer.c:594:44: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_wput2':
src/enforcer.c:604:44: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
src/enforcer.c: In function 'dummy_bput2':
src/enforcer.c:614:44: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
```
@tonioni do you see a proper fix for this ?