BugID: #05792

Exception at EIP=00000000016FE120 (floppy_image_format_t::generate_track_from_le
vels(int, int, unsigned int*, int, int, floppy_image*)+0x0230): ACCESS VIOLATION

While attempting to write memory at 0000000000000001
-----------------------------------------------------
RAX=00000000000001F4 RBX=0000000000000000 RCX=00000000000001F4 RDX=0000000000000
3E8
RSI=0000000000000001 RDI=00000000500003E8 RBP=0000000000226930 RSP=0000000000226
8B0
R8=0000000000000001 R9=000000000E1CFEF0 R10=0000000000000001 R11=00000000FFFFF
FFF
R12=0000000000000020 R13=0000000000000000 R14=000000000E200C30 R15=0000000000000
670
-----------------------------------------------------
Stack crawl:
00000000002268B0: 00000000016FE120 (floppy_image_format_t::generate_track_from
_levels(int, int, unsigned int*, int, int, floppy_image*)+0x0230)
0000000000226A00: 00000000017042E2 (floppy_image_format_t::build_pc_track_fm(i
nt, int, floppy_image*, int, int, floppy_image_format_t::desc_pc_sector const*,
int, int, int, int)+0x11a2)
0000000000228320: 00000000016D9A71 (imd_format::load(io_generic*, unsigned int
, floppy_image*)+0x0351)
00000000002283C0: 00000000014B9C75 (floppy_image_device::call_load()+0x00e5)
0000000000228400: 00000000014D7CF7 (device_image_interface::finish_load()+0x00
e7)
00000000002284C0: 0000000001550B3C (image_postdevice_init(running_machine&)+0x
008c)
0000000000228520: 0000000001444F55 (driver_device::device_start()+0x0085)
00000000002285E0: 000000000143E708 (device_t::start()+0x0168)
0000000000228640: 00000000014D1557 (running_machine::start_all_devices()+0x006
7)
0000000000228780: 00000000014D25FD (running_machine::start()+0x0b0d)
00000000002287E0: 00000000014D5345 (running_machine::run(bool)+0x00c5)
000000000022F420: 00000000014CB74A (machine_manager::execute()+0x022a)
000000000022F610: 0000000001559460 (cli_frontend::execute(int, char**)+0x0b60)

000000000022FDF0: 00000000009384C8 (utf8_main(int, char**)+0x01a8)
000000000022FE50: 00000000018291BE (wmain+0x007e)
000000000022FF20: 00000000004013CA (__tmainCRTStartup+0x024a)
000000000022FF50: 00000000004014F8 (mainCRTStartup+0x0018)
000000000022FF80: 0000000077245A4D (BaseThreadInitThunk+0x000d)
000000000022FFD0: 000000007737BA01 (RtlUserThreadStart+0x0021)