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-" Vim syntax file
-" Language: GNU Assembler
-" Maintainer: Doug Kearns dougkearns@gmail.com
-" Previous Maintainers: Erik Wognsen <erik.wognsen@gmail.com>
-" Kevin Dahlhausen <kdahlhaus@yahoo.com>
-" Contributors: Ori Avtalion, Lakshay Garg, Nir Lichtman
-" Last Change: 2025 Jan 26
-
-" quit when a syntax file was already loaded
-if exists("b:current_syntax")
- finish
-endif
-
-let s:cpo_save = &cpo
-set cpo&vim
-
-syn case ignore
-
-" storage types
-syn match asmType "\.long"
-syn match asmType "\.ascii"
-syn match asmType "\.asciz"
-syn match asmType "\.byte"
-syn match asmType "\.double"
-syn match asmType "\.float"
-syn match asmType "\.hword"
-syn match asmType "\.int"
-syn match asmType "\.octa"
-syn match asmType "\.quad"
-syn match asmType "\.short"
-syn match asmType "\.single"
-syn match asmType "\.space"
-syn match asmType "\.string"
-syn match asmType "\.word"
-syn match asmType "\.2byte"
-syn match asmType "\.4byte"
-syn match asmType "\.8byte"
-
-syn match asmIdentifier "[a-z_][a-z0-9_]*"
-syn match asmLabel "[a-z_][a-z0-9_]*:"he=e-1
-
-" Various #'s as defined by GAS ref manual sec 3.6.2.1
-" Technically, the first asmDecimal def is actually octal,
-" since the value of 0-7 octal is the same as 0-7 decimal,
-" I (Kevin) prefer to map it as decimal:
-syn match asmDecimal "\<0\+[1-7]\=\>" display
-syn match asmDecimal "\<[1-9]\d*\>" display
-syn match asmOctal "\<0[0-7][0-7]\+\>" display
-syn match asmHexadecimal "\<0[xX][0-9a-fA-F]\+\>" display
-syn match asmBinary "\<0[bB][0-1]\+\>" display
-
-syn match asmFloat "\<\d\+\.\d*\%(e[+-]\=\d\+\)\=\>" display
-syn match asmFloat "\.\d\+\%(e[+-]\=\d\+\)\=\>" display
-syn match asmFloat "\<\d\%(e[+-]\=\d\+\)\>" display
-syn match asmFloat "[+-]\=Inf\>\|\<NaN\>" display
-
-syn match asmFloat "\%(0[edfghprs]\)[+-]\=\d*\%(\.\d\+\)\%(e[+-]\=\d\+\)\=" display
-syn match asmFloat "\%(0[edfghprs]\)[+-]\=\d\+\%(\.\d\+\)\=\%(e[+-]\=\d\+\)\=" display
-" Avoid fighting the hexadecimal match for unicorn-like '0x' prefixed floats
-syn match asmFloat "\%(0x\)[+-]\=\d*\%(\.\d\+\)\%(e[+-]\=\d\+\)\=" display
-
-" Allow all characters to be escaped (and in strings) as these vary across
-" architectures [See sec 3.6.1.1 Strings]
-syn match asmCharacterEscape "\\." contained
-syn match asmCharacter "'\\\=." contains=asmCharacterEscape
-
-syn match asmStringEscape "\\\_." contained
-syn match asmStringEscape "\\\%(\o\{3}\|00[89]\)" contained display
-syn match asmStringEscape "\\x\x\+" contained display
-
-syn region asmString start="\"" end="\"" skip="\\\\\|\\\"" contains=asmStringEscape
-
-syn keyword asmTodo contained TODO FIXME XXX NOTE
-
-" GAS supports one type of multi line comments:
-syn region asmComment start="/\*" end="\*/" contains=asmTodo,@Spell
-
-" GAS (undocumentedly?) supports C++ style comments. Unlike in C/C++ however,
-" a backslash ending a C++ style comment does not extend the comment to the
-" next line (hence the syntax region does not define 'skip="\\$"')
-syn region asmComment start="//" end="$" keepend contains=asmTodo,@Spell
-
-" Line comment characters depend on the target architecture and command line
-" options and some comments may double as logical line number directives or
-" preprocessor commands. This situation is described at
-" http://sourceware.org/binutils/docs-2.22/as/Comments.html
-" Some line comment characters have other meanings for other targets. For
-" example, .type directives may use the `@' character which is also an ARM
-" comment marker.
-" As a compromise to accommodate what I arbitrarily assume to be the most
-" frequently used features of the most popular architectures (and also the
-" non-GNU assembly languages that use this syntax file because their asm files
-" are also named *.asm), the following are used as line comment characters:
-syn match asmComment "[#;!|].*" contains=asmTodo,@Spell
-
-" Side effects of this include:
-" - When `;' is used to separate statements on the same line (many targets
-" support this), all statements except the first get highlighted as
-" comments. As a remedy, remove `;' from the above.
-" - ARM comments are not highlighted correctly. For ARM, uncomment the
-" following two lines and comment the one above.
-"syn match asmComment "@.*" contains=asmTodo
-"syn match asmComment "^#.*" contains=asmTodo
-
-" Advanced users of specific architectures will probably want to change the
-" comment highlighting or use a specific, more comprehensive syntax file.
-
-syn match asmInclude "\.include"
-syn match asmCond "\.if"
-syn match asmCond "\.else"
-syn match asmCond "\.endif"
-syn match asmMacro "\.macro"
-syn match asmMacro "\.endm"
-
-" Assembler directives start with a '.' and may contain upper case (e.g.,
-" .ABORT), numbers (e.g., .p2align), dash (e.g., .app-file) and underscore in
-" CFI directives (e.g., .cfi_startproc). This will also match labels starting
-" with '.', including the GCC auto-generated '.L' labels.
-syn match asmDirective "\.[A-Za-z][0-9A-Za-z-_]*"
-
-syn case match
-
-" Define the default highlighting.
-" Only when an item doesn't have highlighting yet
-
-" The default methods for highlighting. Can be overridden later
-hi def link asmSection Special
-hi def link asmLabel Label
-hi def link asmComment Comment
-hi def link asmTodo Todo
-hi def link asmDirective Statement
-
-hi def link asmInclude Include
-hi def link asmCond PreCondit
-hi def link asmMacro Macro
-
-if exists('g:asm_legacy_syntax_groups')
- hi def link hexNumber Number
- hi def link decNumber Number
- hi def link octNumber Number
- hi def link binNumber Number
- hi def link asmHexadecimal hexNumber
- hi def link asmDecimal decNumber
- hi def link asmOctal octNumber
- hi def link asmBinary binNumber
-else
- hi def link asmHexadecimal Number
- hi def link asmDecimal Number
- hi def link asmOctal Number
- hi def link asmBinary Number
-endif
-hi def link asmFloat Float
-
-hi def link asmString String
-hi def link asmStringEscape Special
-hi def link asmCharacter Character
-hi def link asmCharacterEscape Special
-
-hi def link asmIdentifier Identifier
-hi def link asmType Type
-
-let b:current_syntax = "asm"
-
-let &cpo = s:cpo_save
-unlet s:cpo_save
-
-" vim: nowrap sw=2 sts=2 ts=8 noet