BugID: #05112

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Exception at EIP=0000000000000000 (): ACCESS VIOLATION
While attempting to write memory at 0000000000000000
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RAX=0000000004862978 RBX=0000000000000000 RCX=0000000000000000 RDX=00000000047FC678
RSI=00000000049CCB98 RDI=0000000000156680 RBP=0000000000000000 RSP=0000000000156648
 R8=0000000000000000  R9=00000000000000FF R10=FEFEFEFEFEFEFEFF R11=8080808080808080
R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000
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Stack crawl:
  0000000000156640: 0000000000000000 ()
  0000000000156680: 00000001412C6411 (delegate_mfp::method_stub<upd72065_device,unsigned char,address_space & __ptr64,unsigned int,unsigned char>+0x0061, s:\svn\mame\src\emu\delegate.h:329)
  00000000001566B0: 000000013F86FD7D (delegate_base<unsigned char,address_space & __ptr64,unsigned int,unsigned char,_noparam,_noparam>::operator()+0x004d, s:\svn\mame\src\emu\delegate.h:542)
  0000000000156720: 00000001410B3D32 (handler_entry_read::read_stub_32+0x01f2, s:\svn\mame\src\emu\memory.c:4830)
  0000000000156760: 00000001410C3DC0 (delegate_mfp::method_stub<handler_entry_read,unsigned int,address_space & __ptr64,unsigned int,unsigned int>+0x0060, s:\svn\mame\src\emu\delegate.h:329)
  0000000000156790: 000000014111603C (delegate_base<unsigned int,address_space & __ptr64,unsigned int,unsigned int,_noparam,_noparam>::operator()+0x004c, s:\svn\mame\src\emu\delegate.h:542)
  00000000001567C0: 0000000141122AFF (handler_entry_read::read32+0x004f, s:\svn\mame\src\emu\memory.c:395)
  0000000000156810: 0000000141127C1E (address_space_specific<unsigned int,1,1>::read_native+0x014e, s:\svn\mame\src\emu\memory.c:1061)
  0000000000156880: 00000001410C6814 (address_space_specific<unsigned int,1,1>::read_direct<unsigned char,1>+0x00b4, s:\svn\mame\src\emu\memory.c:1157)
  00000000001568C0: 0000000141123162 (address_space_specific<unsigned int,1,1>::read_byte+0x0052, s:\svn\mame\src\emu\memory.c:1389)
  00000000001568F0: 00000001409C6DBD (m68k_memory_interface::read_byte_32_mmu+0x008d, s:\svn\mame\src\emu\cpu\m68000\m68kcpu.c:1462)
  0000000000156930: 00000001409DCE0A (delegate_mfp::method_stub<m68k_memory_interface,unsigned char,unsigned int>+0x004a, s:\svn\mame\src\emu\delegate.h:311)
  0000000000156960: 000000013F805386 (delegate_base<unsigned char,unsigned int,_noparam,_noparam,_noparam,_noparam>::operator()+0x0036, s:\svn\mame\src\emu\delegate.h:540)
  0000000000156990: 0000000140F72140 (m68ki_read_8_fc+0x0060, s:\svn\mame\src\emu\cpu\m68000\m68kcpu.h:1073)
  00000000001569D0: 0000000140F7349B (OPER_AL_8+0x004b, s:\svn\mame\src\emu\cpu\m68000\m68kcpu.h:1311)
  0000000000156A10: 0000000140F30128 (_m68ki_cpu_core::m68k_op_move_8_d_al+0x0028, s:\svn\mame\obj\vwindows64d\emu\cpu\m68000\m68kops.c:15930)
  0000000000156AE0: 00000001409D550B (cpu_execute_m68k+0x020b, s:\svn\mame\src\emu\cpu\m68000\m68kcpu.c:810)
  0000000000156B10: 00000001414374B7 (legacy_cpu_device::execute_run+0x0037, s:\svn\mame\src\emu\devcpu.c:261)
  0000000000156B40: 0000000141204421 (device_execute_interface::run+0x0031, s:\svn\mame\src\emu\diexec.h:221)
  0000000000156C60: 0000000141200EF2 (device_scheduler::timeslice+0x0432, s:\svn\mame\src\emu\schedule.c:489)
  00000000001571D0: 000000014121C8AC (running_machine::run+0x034c, s:\svn\mame\src\emu\machine.c:396)
  000000000015D950: 00000001410A69F8 (mame_execute+0x01f8, s:\svn\mame\src\emu\mame.c:190)
  000000000015F870: 000000014182A4EF (cli_frontend::execute+0x0a2f, s:\svn\mame\src\emu\clifront.c:255)
  000000000015FD60: 00000001417AB96B (utf8_main+0x017b, s:\svn\mame\src\osd\windows\winmain.c:484)
  000000000015FDA0: 00000001417A75C0 (wmain+0x00b0, s:\svn\mame\src\osd\windows\main.c:82)
  000000000015FDF0: 0000000141746C2C (__tmainCRTStartup+0x00ec, f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c:241)
  000000000015FE20: 0000000141746D6E (wmainCRTStartup+0x000e, f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c:164)
  000000000015FE50: 000000007738652D (BaseThreadInitThunk+0x000d)
  000000000015FEA0: 000000007791C521 (RtlUserThreadStart+0x0021)