VHDL语言实现多路选择器

<internal_error> <executable>quartus.exe</executable> <sub_system>ERR</sub_system> <callstack>Stack Trace: c5801d25:10003195: AFC_NOTIFY_MGR::~AFC_NOTIFY_MGR() + 0x9a4 (GCL_AFC) 5f401fb5: Ordinal5163() + 0x2a9 (MFC42) 5f401cea: Ordinal6374() + 0x22 (MFC42) 5f401c73: Ordinal1109() + 0x74 (MFC42) 5f401bfb: Ordinal1578() + 0x2a (MFC42) 5f401bba: Ordinal1579() + 0x39 (MFC42) 77df1ef0: MsgWaitForMultipleObjects() + 0x43f (USER32) 77df3869: SetWindowTextW() + 0x6a (USER32) 77df38ab: SetWindowTextW() + 0xac (USER32) 77f9ff57: KiUserCallbackDispatcher() + 0x13 (ntdll) 77df5f69: DispatchMessageA() + 0xb (USER32) End-trace </callstack> <error>Fatal error detected: Access Violation</error> <date>Fri Sep 23 21:28:35 2005</date> <version>Quartus II Version 5.0 Build 148 04/26/2005 SJ Full Version</version> <full_error>Fatal error detected: Access Violation Stack Trace: c5801d25:10003195: AFC_NOTIFY_MGR::~AFC_NOTIFY_MGR() + 0x9a4 (GCL_AFC) 5f401fb5: Ordinal5163() + 0x2a9 (MFC42) 5f401cea: Ordinal6374() + 0x22 (MFC42) 5f401c73: Ordinal1109() + 0x74 (MFC42) 5f401bfb: Ordinal1578() + 0x2a (MFC42) 5f401bba: Ordinal1579() + 0x39 (MFC42) 77df1ef0: MsgWaitForMultipleObjects() + 0x43f (USER32) 77df3869: SetWindowTextW() + 0x6a (USER32) 77df38ab: SetWindowTextW() + 0xac (USER32) 77f9ff57: KiUserCallbackDispatcher() + 0x13 (ntdll) 77df5f69: DispatchMessageA() + 0xb (USER32) End-trace Quartus II Version 5.0 Build 148 04/26/2005 SJ Full Version </full_error> </internal_error>