Update runtime files.
diff --git a/runtime/syntax/sdc.vim b/runtime/syntax/sdc.vim
new file mode 100644
index 0000000..0ca9bec
--- /dev/null
+++ b/runtime/syntax/sdc.vim
@@ -0,0 +1,41 @@
+" Vim syntax file
+" Language: SDC - Synopsys Design Constraints
+" Maintainer: Maurizio Tranchero - maurizio.tranchero@gmail.com
+" Last Change: Thu Mar 25 17:35:16 CET 2009
+" Credits: based on TCL Vim syntax file
+" Version: 0.3
+
+" Quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+" Read the TCL syntax to start with
+runtime! syntax/tcl.vim
+
+" SDC-specific keywords
+syn keyword sdcCollections foreach_in_collection
+syn keyword sdcObjectsQuery get_clocks get_ports
+syn keyword sdcObjectsInfo get_point_info get_node_info get_path_info
+syn keyword sdcObjectsInfo get_timing_paths set_attribute
+syn keyword sdcConstraints set_false_path
+syn keyword sdcNonIdealities set_min_delay set_max_delay
+syn keyword sdcNonIdealities set_input_delay set_output_delay
+syn keyword sdcNonIdealities set_load set_min_capacitance set_max_capacitance
+syn keyword sdcCreateOperations create_clock create_timing_netlist update_timing_netlist
+
+" command flags highlighting
+syn match sdcFlags "[[:space:]]-[[:alpha:]]*\>"
+
+" Define the default highlighting.
+hi def link sdcCollections Repeat
+hi def link sdcObjectsInfo Operator
+hi def link sdcCreateOperations Operator
+hi def link sdcObjectsQuery Operator
+hi def link sdcConstraints Operator
+hi def link sdcNonIdealities Operator
+hi def link sdcFlags Special
+
+let b:current_syntax = "sdc"
+
+" vim: ts=8