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+" Vim syn file
+" Language: Altera AHDL
+" Maintainer: John Cook <john.cook@kla-tencor.com>
+" Last Change: 2001 Apr 25
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+"this language is oblivious to case.
+syn case ignore
+
+" a bunch of keywords
+syn keyword ahdlKeyword assert begin bidir bits buried case clique
+syn keyword ahdlKeyword connected_pins constant defaults define design
+syn keyword ahdlKeyword device else elsif end for function generate
+syn keyword ahdlKeyword gnd help_id if in include input is machine
+syn keyword ahdlKeyword node of options others output parameters
+syn keyword ahdlKeyword returns states subdesign table then title to
+syn keyword ahdlKeyword tri_state_node variable vcc when with
+
+" a bunch of types
+syn keyword ahdlIdentifier carry cascade dffe dff exp global
+syn keyword ahdlIdentifier jkffe jkff latch lcell mcell memory opendrn
+syn keyword ahdlIdentifier soft srffe srff tffe tff tri wire x
+
+syn keyword ahdlMegafunction lpm_and lpm_bustri lpm_clshift lpm_constant
+syn keyword ahdlMegafunction lpm_decode lpm_inv lpm_mux lpm_or lpm_xor
+syn keyword ahdlMegafunction busmux mux
+
+syn keyword ahdlMegafunction divide lpm_abs lpm_add_sub lpm_compare
+syn keyword ahdlMegafunction lpm_counter lpm_mult
+
+syn keyword ahdlMegafunction altdpram csfifo dcfifo scfifo csdpram lpm_ff
+syn keyword ahdlMegafunction lpm_latch lpm_shiftreg lpm_ram_dq lpm_ram_io
+syn keyword ahdlMegafunction lpm_rom lpm_dff lpm_tff clklock pll ntsc
+
+syn keyword ahdlTodo contained TODO
+
+" String constants
+syn region ahdlString start=+"+ skip=+\\"+ end=+"+
+
+" valid integer number formats (decimal, binary, octal, hex)
+syn match ahdlNumber '\<\d\+\>'
+syn match ahdlNumber '\<b"\(0\|1\|x\)\+"'
+syn match ahdlNumber '\<\(o\|q\)"\o\+"'
+syn match ahdlNumber '\<\(h\|x\)"\x\+"'
+
+" operators
+syn match ahdlOperator "[!&#$+\-<>=?:\^]"
+syn keyword ahdlOperator not and nand or nor xor xnor
+syn keyword ahdlOperator mod div log2 used ceil floor
+
+" one line and multi-line comments
+" (define these after ahdlOperator so -- overrides -)
+syn match ahdlComment "--.*" contains=ahdlNumber,ahdlTodo
+syn region ahdlComment start="%" end="%" contains=ahdlNumber,ahdlTodo
+
+" other special characters
+syn match ahdlSpecialChar "[\[\]().,;]"
+
+syn sync minlines=1
+
+" Define the default highlighting.
+" Only when an item doesn't have highlighting yet
+
+" The default highlighting.
+hi def link ahdlNumber ahdlString
+hi def link ahdlMegafunction ahdlIdentifier
+hi def link ahdlSpecialChar SpecialChar
+hi def link ahdlKeyword Statement
+hi def link ahdlString String
+hi def link ahdlComment Comment
+hi def link ahdlIdentifier Identifier
+hi def link ahdlOperator Operator
+hi def link ahdlTodo Todo
+
+
+let b:current_syntax = "ahdl"
+" vim:ts=8