Add syntax files from upstream vim repository

syntax/cynpp.vim

@@ -0,0 +1,54 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
+  
+" Vim syntax file
+" Language:     Cyn++
+" Maintainer:   Phil Derrick <phild@forteds.com>
+" Last change:  2001 Sep 02
+"
+" Language Information
+"
+"		Cynpp (Cyn++) is a macro language to ease coding in Cynlib.
+"		Cynlib is a library of C++ classes to allow hardware
+"		modelling in C++. Combined with a simulation kernel,
+"		the compiled and linked executable forms a hardware
+"		simulation of the described design.
+"
+"		Cyn++ is designed to be HDL-like.
+"
+"		Further information can be found from www.forteds.com
+
+
+
+
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+" Read the Cynlib syntax to start with - this includes the C++ syntax
+runtime! syntax/cynlib.vim
+unlet b:current_syntax
+
+
+
+" Cyn++ extensions
+
+syn keyword     cynppMacro      Always EndAlways
+syn keyword     cynppMacro      Module EndModule
+syn keyword     cynppMacro      Initial EndInitial
+syn keyword     cynppMacro      Posedge Negedge Changed
+syn keyword     cynppMacro      At
+syn keyword     cynppMacro      Thread EndThread
+syn keyword     cynppMacro      Instantiate
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+hi def link cLabel		Label
+hi def link cynppMacro  Statement
+
+
+let b:current_syntax = "cynpp"
+
+endif