local labels

syntax/include/arm_base_syntax.vim

@@ -12,7 +12,7 @@ syn match armNumber     "[#\$]\?\d\+\>"
 syn match armNumber     "[#\$]\?0b[01]\+\>"
 syn match armNumber     "[#\$]\?[01]\+b\>"
 " floats
-syn match armNumber     "\d*\.\d\+f\?\>"
+syn match armNumber     "\d*\.\d\+\>"
 
 " Comments
 syn region armComment   start="//\|@" end="$" contains=armTodo
@@ -26,6 +26,7 @@ syn region armString    start="'" skip=+\\'+ end="'\|$"
 " Assembler identifiers/labels/directives
 syn match armIdentifier "\<\h\w*\>"
 syn match armLabel      "\<\h\w*:"
+syn match armLabel	"\d\{1,2\}[:fb]"
 syn match armCPreProc   "#\h\w*\>"
 
 so <sfile>:p:h/gas_directives.vim
@@ -42,11 +43,11 @@ let armCond = '\%(AL\|CC\|CS\|EQ\|GE\|GT\|HI\|HS\|LE\|LO\|LS\|LT\|MI\|NE\|PL\|VC
 "
 " ARMv4 and thumb instructions
 " 
-exec 'syn match armv4Instr "\%(ADC\|ADD\|ADR\|AND\|BIC\|EOR\|MLA\|MOV\|MUL\|MVN\|NEG\|ORR\|RSB\|RSC\|SBC\|SMLAL\|SMULL\|SUB\|UMLAL\|UMULL\)' . armCond . 'S\?\>"'
+exec 'syn match armv4Instr "\%(ADC\|ADD\|AND\|BIC\|EOR\|MLA\|MOV\|MUL\|MVN\|NEG\|ORR\|RSB\|RSC\|SBC\|SMLAL\|SMULL\|SUB\|UMLAL\|UMULL\)' . armCond . 'S\?\>"'
 
 exec 'syn match armv4InstrCond  "\%(B\|BL\|BX\|CDP\|CMN\|CMP\|LDC\|MCR\|MRC\|MRS\|MSR\|STC\|SWI\|TEQ\|TST\)' . armCond . '\>"'
 
-syn match armv4InstrNoCond  "\%(ADRL\|ASR\|LSL\|LSR\|NOP\|POP\|PUSH\|ROR\|RRX\)\>"
+syn match armv4InstrNoCond  "\%(ASR\|LSL\|LSR\|NOP\|POP\|PUSH\|ROR\|RRX\)\>"
 
 exec 'syn match armv4LDR    "\%(LDR\)' . armCond . '\%(B\?T\?\|H\|S[BH]\)\?\>"'
 exec 'syn match armv4STR    "\%(STR\)' . armCond . '\%(B\?T\?\|H\)\?\>"'

test/armv4-test.s

@@ -1,11 +1,20 @@
 
+1:
+    b 1b
+    bl 0f
+2:
+    bx 2b
+0:
 
 adc r1, r15, R14
 add A1, v1, V8
 smull r0, r1,R2
+smull r0, r1,R2
+
+@ illegal
+blx 0002f
 smlalBt r1,r15
 SMLawTb V8, v3
 SMLALtb A1,   a4
-smull r0, r1,R2
 
 @ vim:ft=armv4