diff --git a/runtime/syntax/masm.vim b/runtime/syntax/masm.vim
new file mode 100644
index 0000000..e11a029
--- /dev/null
+++ b/runtime/syntax/masm.vim
@@ -0,0 +1,144 @@
+" Vim syntax file
+" Language:	Microsoft Assembler (80x86)
+" Maintainer:	Rob Brady <robb@datatone.com>
+" Last Change:	$Date$
+" URL: http://www.datatone.com/~robb/vim/syntax/masm.vim
+" $Revision$
+
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+syn case ignore
+
+
+" syn match masmType "\.word"
+
+syn match masmIdentifier	"[a-z_$][a-z0-9_$]*"
+syn match masmLabel		"^[A-Z_$][A-Z0-9_$]*:"he=e-1
+
+syn match masmDecimal		"\d*"
+syn match masmBinary		"[0-1]\+b"  "put this before hex or 0bfh dies!
+syn match masmHexadecimal	"[0-9]\x*h"
+syn match masmFloat		"[0-9]\x*r"
+
+syn match masmComment		";.*"
+syn region masmString		start=+'+ end=+'+
+
+syn keyword masmOperator	AND BYTE PTR CODEPTR DATAPTR DUP DWORD EQ FAR
+syn keyword masmOperator	FWORD GE GT HIGH LARGE LE LOW LT MOD NE NEAR
+syn keyword masmOperator	NOT OFFSET OR PROC PWORD QWORD SEG SHORT TBYTE
+syn keyword masmOperator	TYPE WORD PARA
+syn keyword masmDirective	ALIGN ARG ASSUME CODESEG COMM
+syn keyword masmDirective	CONST DATASEG DB DD DF DISPLAY DOSSEG DP
+syn keyword masmDirective	DQ DT DW ELSE ELSEIF EMUL END ENDIF ENDM ENDP
+syn keyword masmDirective	ENDS ENUM EQU PROC PUBLIC PUBLICDLL RADIX
+syn keyword masmDirective	EXTRN FARDATA GLOBAL RECORD SEGMENT SMALLSTACK
+syn keyword masmDirective	GROUP IF IF1 IF2 IFB IFDEF IFDIF IFDIFI
+syn keyword masmDirective	IFE IFIDN IFIDNI IFNB IFNDEF INCLUDE INCLUDLIB
+syn keyword masmDirective	LABEL LARGESTACK STACK STRUC SUBTTL TITLE
+syn keyword masmDirective	MODEL NAME NOEMUL UNION USES VERSION
+syn keyword masmDirective	ORG FLAT
+syn match   masmDirective	"\.model"
+syn match   masmDirective	"\.186"
+syn match   masmDirective	"\.286"
+syn match   masmDirective	"\.286c"
+syn match   masmDirective	"\.286p"
+syn match   masmDirective	"\.287"
+syn match   masmDirective	"\.386"
+syn match   masmDirective	"\.386c"
+syn match   masmDirective	"\.386p"
+syn match   masmDirective	"\.387"
+syn match   masmDirective	"\.486"
+syn match   masmDirective	"\.486c"
+syn match   masmDirective	"\.486p"
+syn match   masmDirective	"\.8086"
+syn match   masmDirective	"\.8087"
+syn match   masmDirective	"\.ALPHA"
+syn match   masmDirective	"\.CODE"
+syn match   masmDirective	"\.DATA"
+
+syn keyword masmRegister	AX BX CX DX SI DI BP SP
+syn keyword masmRegister	ES DS SS CS
+syn keyword masmRegister	AH BH CH DH AL BL CL DL
+syn keyword masmRegister	EAX EBX ECX EDX ESI EDI EBP ESP
+
+
+" these are current as of the 486 - don't have any pentium manuals handy
+syn keyword masmOpcode		AAA AAD AAM AAS ADC ADD AND ARPL BOUND BSF
+syn keyword masmOpcode		BSR BSWAP BT BTC BTR BTS BSWAP BT BTC BTR
+syn keyword masmOpcode		BTS CALL CBW CDQ CLC CLD CLI CLTS CMC CMP
+syn keyword masmOpcode		CMPS CMPSB CMPSW CMPSD CMPXCHG CWD CWDE DAA
+syn keyword masmOpcode		DAS DEC DIV ENTER HLT IDIV IMUL IN INC INS
+syn keyword masmOpcode		INSB INSW INSD INT INTO INVD INVLPG IRET
+syn keyword masmOpcode		IRETD JA JAE JB JBE JC JCXZ JECXZ JE JZ JG
+syn keyword masmOpcode		JGE JL JLE JNA JNAE JNB JNBE JNC JNE JNG JNGE
+syn keyword masmOpcode		JNL JNLE JNO JNP JNS JNZ JO JP JPE JPO JS JZ
+syn keyword masmOpcode		JMP LAHF LAR LEA LEAVE LGDT LIDT LGS LSS LFS
+syn keyword masmOpcode		LODS LODSB LODSW LODSD LOOP LOOPE LOOPZ LOONE
+syn keyword masmOpcode		LOOPNE RETF RETN
+syn keyword masmOpcode		LDS LES LLDT LMSW LOCK LSL LTR MOV MOVS MOVSB
+syn keyword masmOpcode		MOVSW MOVSD MOVSX MOVZX MUL NEG NOP NOT OR
+syn keyword masmOpcode		OUT OUTS OUTSB OUTSW OUTSD POP POPA POPD
+syn keyword masmOpcode		POPF POPFD PUSH PUSHA PUSHAD PUSHF PUSHFD
+syn keyword masmOpcode		RCL RCR ROL ROR REP REPE REPZ REPNE REPNZ
+syn keyword masmOpcode		RET SAHF SAL SAR SHL SHR SBB SCAS SCASB
+syn keyword masmOpcode		SCASW SCASD SETA SETAE SETB SETBE SETC SETE
+syn keyword masmOpcode		SETG SETGE SETL SETLE SETNA SETNAE SETNB
+syn keyword masmOpcode		SETNBE SETNC SETNE SETNG SETNGE SETNL SETNLE
+syn keyword masmOpcode		SETNO SETNP SETNS SETNZ SETO SETP SETPE SETPO
+syn keyword masmOpcode		SETS SETZ SGDT SIDT SHLD SHRD SLDT SMSW STC
+syn keyword masmOpcode		STD STI STOS STOSB STOSW STOSD STR SUB TEST
+syn keyword masmOpcode		VERR VERW WAIT WBINVD XADD XCHG XLAT XLATB XOR
+
+" floating point coprocessor as of 487
+syn keyword masmOpFloat		F2XM1 FABS FADD FADDP FBLD FBSTP FCHS FCLEX
+syn keyword masmOpFloat		FNCLEX FCOM FCOMP FCOMPP FCOS FDECSTP FDISI
+syn keyword masmOpFloat		FNDISI FDIV FDIVP FDIVR FDIVRP FENI FNENI
+syn keyword masmOpFloat		FFREE FIADD FICOM FICOMP FIDIV FIDIVR FILD
+syn keyword masmOpFloat		FIMUL FINCSTP FINIT FNINIT FIST FISTP FISUB
+syn keyword masmOpFloat		FISUBR FLD FLDCW FLDENV FLDLG2 FLDLN2 FLDL2E
+syn keyword masmOpFloat		FLDL2T FLDPI FLDZ FLD1 FMUL FMULP FNOP FPATAN
+syn keyword masmOpFloat		FPREM FPREM1 FPTAN FRNDINT FRSTOR FSAVE
+syn keyword masmOpFloat		FNSAVE FSCALE FSETPM FSIN FSINCOS FSQRT FST
+syn keyword masmOpFloat		FSTCW FNSTCW FSTENV FNSTENV FSTP FSTSW FNSTSW
+syn keyword masmOpFloat		FSUB FSUBP FSUBR FSUBRP FTST FUCOM FUCOMP
+syn keyword masmOpFloat		FUCOMPP FWAIT FXAM FXCH FXTRACT FYL2X FYL2XP1
+syn match   masmOpFloat		"FSTSW[ \t]\+AX"
+syn match   masmOpFloat		"FNSTSW[ \t]\+AX"
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_masm_syntax_inits")
+  if version < 508
+    let did_masm_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  " The default methods for highlighting.  Can be overridden later
+  HiLink masmLabel	Label
+  HiLink masmComment	Comment
+  HiLink masmDirective	Statement
+  HiLink masmOperator	Statement
+  HiLink masmString	String
+
+  HiLink masmHexadecimal Number
+  HiLink masmDecimal	Number
+  HiLink masmBinary	Number
+  HiLink masmFloat	Number
+
+  HiLink masmIdentifier Identifier
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "masm"
+
+" vim: ts=8