CAAPE User's Manual - ALSTOM Signaling Inc.

Simulator ReferenceFunction: SET_NVTWCSP( board, channel, pos, message_bit, new_value )Sets the value of the specified bit in a special message.• board is the TWC/NVTWC board.• channel is the TWC/NVTWC channel.• pos is the zero-based position of the message in the list of special messagesassigned to the channel.• message_bit is the message bit, where 1 is the first bit.• new_value is a Boolean variable or a constant which contains the new value of thespecial message bit.For example:* Clear the fourth bit of the third special message for TWC board 1, channel 2CALL SET_NVTWCSP( 1,2,2,4,FALSE )12.4.5. Utility FunctionsFunction: STRING_COMPARE( string1,string2,are_equal )Does a case-insensitive compare of two strings.• string1 and string2 are strings or string variables to be compared.• are_equal is a returned Boolean value which is True if the two strings are the same.For example:* Check whether the string contained in variable ADDR is "00110"CALL STRING_COMPARE(ADDR,"00110",ARE_EQUAL )IF( ARE_EQUAL==TRUE )...P2512A, Rev. Oct/09 12–26 Alstom Signaling Inc.