BugID: #04840

Program received signal SIGSEGV, Segmentation fault.
0xb7ee5a07 in ?? ()
(gdb) bt
#0 0xb7ee5a07 in ?? ()
#1 0x02930f0f in k054539_device::write (this=0x2718ac, space=..., offset=319, data=31 '\037', mem_mask=255 ' ')
at src/emu/sound/k054539.c:388
#2 0x0318b60a in delegate_base<void, address_space&, unsigned int, unsigned char, unsigned char, _noparam>::operator() (this=0x303fb8f4, p1=..., p2=319, p3=31 '\037', p4=255 ' ')
at src/emu/delegate.h:620
#3 0x03197a69 in handler_entry_write::write8 (this=0x303fb84c, space=..., offset=319, data=31 '\037', mask=255 ' ')
at src/emu/memory.c:510
#4 0x030b6f1e in address_space_specific<unsigned char, (endianness_t)0, false>::write_native (this=0x30385cd4, offset=319, data=31 '\037')
at src/emu/memory.c:1157
#5 0x030b5d2a in address_space_specific<unsigned char, (endianness_t)0, false>::write_byte (this=0x30385cd4, address=57663, data=31 '\037')
at src/emu/memory.c:1429
#6 0x01d74f02 in op_32 (z80=0x2f0e1f70)
at src/emu/cpu/z80/z80.c:2993
#7 0x01d7a1bf in cpu_execute_z80 (device=0x26e00c)
at src/emu/cpu/z80/z80.c:3636
#8 0x027d9e87 in legacy_cpu_device::execute_run (this=0x26e00c)
at src/emu/devcpu.c:260
#9 0x030d6e5c in device_execute_interface::run (this=0x26e2c4)
at src/emu/diexec.h:228
#10 0x024693a3 in device_scheduler::timeslice (this=0x22f2f8)
at src/emu/schedule.c:489
#11 0x02524010 in running_machine::run (this=0x22c410, firstrun=true)
at src/emu/machine.c:389
#12 0x02456d7b in mame_execute (options=..., osd=...)
at src/emu/mame.c:189
#13 0x027bb266 in cli_frontend::execute (this=0x22fe80, argc=4, argv=0x3f4bd8)
at src/emu/clifront.c:252
#14 0x01d297f0 in utf8_main (argc=4, argv=0x3f4bd8)
at src/osd/windows/winmain.c:482
#15 0x02a50cd6 in wmain (argc=4, argv=0x3f28f0)
at src/osd/windows/main.c:82
#16 0x00401422 in __tmainCRTStartup ()
at ../mingw-w64-crt/crt/crtexe.c:282
#17 0x7c817077 in RegisterWaitForInputIdle ()
from C:\WINDOWS\system32\kernel32.dll
#18 0x00000000 in ?? ()