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// CodeMirror, copyright (c) by Marijn Haverbeke and others

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// Distributed under an MIT license: http://codemirror.net/LICENSE

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(function(mod) {

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if (typeof exports == "object" && typeof module == "object") // CommonJS

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mod(require("../../lib/codemirror"));

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else if (typeof define == "function" && define.amd) // AMD

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define(["../../lib/codemirror"], mod);

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else // Plain browser env

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mod(CodeMirror);

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})(function(CodeMirror) {

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"use strict";

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CodeMirror.defineMode("gas", function(_config, parserConfig) {

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'use strict';

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// If an architecture is specified, its initialization function may

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// populate this array with custom parsing functions which will be

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// tried in the event that the standard functions do not find a match.

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var custom = [];

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// The symbol used to start a line comment changes based on the target

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// architecture.

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// If no architecture is pased in "parserConfig" then only multiline

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// comments will have syntax support.

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var lineCommentStartSymbol = "";

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// These directives are architecture independent.

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// Machine specific directives should go in their respective

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// architecture initialization function.

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// Reference:

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// http://sourceware.org/binutils/docs/as/Pseudo-Ops.html#Pseudo-Ops

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var directives = {

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".abort" : "builtin",

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".align" : "builtin",

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".altmacro" : "builtin",

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".ascii" : "builtin",

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".asciz" : "builtin",

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".balign" : "builtin",

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".balignw" : "builtin",

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".balignl" : "builtin",

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".bundle_align_mode" : "builtin",

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".bundle_lock" : "builtin",

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".bundle_unlock" : "builtin",

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".byte" : "builtin",

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".cfi_startproc" : "builtin",

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".comm" : "builtin",

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".data" : "builtin",

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".def" : "builtin",

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".desc" : "builtin",

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".dim" : "builtin",

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".double" : "builtin",

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".eject" : "builtin",

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".else" : "builtin",

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".elseif" : "builtin",

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".end" : "builtin",

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".endef" : "builtin",

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".endfunc" : "builtin",

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".endif" : "builtin",

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".equ" : "builtin",

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".equiv" : "builtin",

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".eqv" : "builtin",

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".err" : "builtin",

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".error" : "builtin",

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".exitm" : "builtin",

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".extern" : "builtin",

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".fail" : "builtin",

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".file" : "builtin",

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".fill" : "builtin",

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".float" : "builtin",

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".func" : "builtin",

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".global" : "builtin",

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".gnu_attribute" : "builtin",

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".hidden" : "builtin",

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".hword" : "builtin",

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".ident" : "builtin",

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".if" : "builtin",

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".incbin" : "builtin",

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".include" : "builtin",

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".int" : "builtin",

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".internal" : "builtin",

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".irp" : "builtin",

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".irpc" : "builtin",

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".lcomm" : "builtin",

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".lflags" : "builtin",

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".line" : "builtin",

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".linkonce" : "builtin",

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".list" : "builtin",

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".ln" : "builtin",

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".loc" : "builtin",

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".loc_mark_labels" : "builtin",

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".local" : "builtin",

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".long" : "builtin",

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".macro" : "builtin",

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".mri" : "builtin",

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".noaltmacro" : "builtin",

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".nolist" : "builtin",

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".octa" : "builtin",

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".offset" : "builtin",

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".org" : "builtin",

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".p2align" : "builtin",

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".popsection" : "builtin",

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".previous" : "builtin",

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".print" : "builtin",

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".protected" : "builtin",

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".psize" : "builtin",

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".purgem" : "builtin",

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".pushsection" : "builtin",

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".quad" : "builtin",

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".reloc" : "builtin",

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".rept" : "builtin",

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".sbttl" : "builtin",

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".scl" : "builtin",

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".section" : "builtin",

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".set" : "builtin",

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".short" : "builtin",

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".single" : "builtin",

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".size" : "builtin",

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".skip" : "builtin",

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".sleb128" : "builtin",

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".space" : "builtin",

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".stab" : "builtin",

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".string" : "builtin",

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".struct" : "builtin",

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".subsection" : "builtin",

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".symver" : "builtin",

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".tag" : "builtin",

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".text" : "builtin",

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".title" : "builtin",

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".type" : "builtin",

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".uleb128" : "builtin",

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".val" : "builtin",

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".version" : "builtin",

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".vtable_entry" : "builtin",

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".vtable_inherit" : "builtin",

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".warning" : "builtin",

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".weak" : "builtin",

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".weakref" : "builtin",

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".word" : "builtin"

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};

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var registers = {};

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function x86(_parserConfig) {

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lineCommentStartSymbol = "#";

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registers.ax = "variable";

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registers.eax = "variable-2";

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registers.rax = "variable-3";

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registers.bx = "variable";

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registers.ebx = "variable-2";

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registers.rbx = "variable-3";

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registers.cx = "variable";

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registers.ecx = "variable-2";

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registers.rcx = "variable-3";

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registers.dx = "variable";

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registers.edx = "variable-2";

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registers.rdx = "variable-3";

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registers.si = "variable";

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registers.esi = "variable-2";

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registers.rsi = "variable-3";

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registers.di = "variable";

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registers.edi = "variable-2";

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registers.rdi = "variable-3";

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registers.sp = "variable";

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registers.esp = "variable-2";

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registers.rsp = "variable-3";

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registers.bp = "variable";

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registers.ebp = "variable-2";

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registers.rbp = "variable-3";

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registers.ip = "variable";

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registers.eip = "variable-2";

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registers.rip = "variable-3";

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registers.cs = "keyword";

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registers.ds = "keyword";

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registers.ss = "keyword";

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registers.es = "keyword";

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registers.fs = "keyword";

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registers.gs = "keyword";

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}

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function armv6(_parserConfig) {

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// Reference:

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// http://infocenter.arm.com/help/topic/com.arm.doc.qrc0001l/QRC0001_UAL.pdf

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// http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf

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lineCommentStartSymbol = "@";

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directives.syntax = "builtin";

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registers.r0 = "variable";

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registers.r1 = "variable";

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registers.r2 = "variable";

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registers.r3 = "variable";

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registers.r4 = "variable";

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registers.r5 = "variable";

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registers.r6 = "variable";

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registers.r7 = "variable";

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registers.r8 = "variable";

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registers.r9 = "variable";

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registers.r10 = "variable";

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registers.r11 = "variable";

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registers.r12 = "variable";

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registers.sp = "variable-2";

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registers.lr = "variable-2";

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registers.pc = "variable-2";

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registers.r13 = registers.sp;

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registers.r14 = registers.lr;

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registers.r15 = registers.pc;

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custom.push(function(ch, stream) {

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if (ch === '#') {

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stream.eatWhile(/\w/);

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return "number";

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}

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});

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}

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var arch = (parserConfig.architecture || "x86").toLowerCase();

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if (arch === "x86") {

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x86(parserConfig);

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} else if (arch === "arm" || arch === "armv6") {

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armv6(parserConfig);

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}

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function nextUntilUnescaped(stream, end) {

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var escaped = false, next;

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while ((next = stream.next()) != null) {

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if (next === end && !escaped) {

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return false;

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}

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escaped = !escaped && next === "\\";

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}

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return escaped;

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}

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function clikeComment(stream, state) {

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var maybeEnd = false, ch;

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while ((ch = stream.next()) != null) {

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if (ch === "/" && maybeEnd) {

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state.tokenize = null;

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break;

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}

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maybeEnd = (ch === "*");

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}

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return "comment";

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}

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return {

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startState: function() {

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return {

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tokenize: null

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};

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token: function(stream, state) {

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if (state.tokenize) {

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return state.tokenize(stream, state);

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}

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if (stream.eatSpace()) {

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return null;

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}

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var style, cur, ch = stream.next();

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if (ch === "/") {

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if (stream.eat("*")) {

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state.tokenize = clikeComment;

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return clikeComment(stream, state);

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}

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}

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if (ch === lineCommentStartSymbol) {

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stream.skipToEnd();

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return "comment";

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}

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if (ch === '"') {

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nextUntilUnescaped(stream, '"');

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return "string";

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}

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if (ch === '.') {

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stream.eatWhile(/\w/);

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cur = stream.current().toLowerCase();

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style = directives[cur];

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return style || null;

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}

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if (ch === '=') {

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stream.eatWhile(/\w/);

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return "tag";

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}

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if (ch === '{') {

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return "braket";

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}

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if (ch === '}') {

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return "braket";

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}

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if (/\d/.test(ch)) {

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if (ch === "0" && stream.eat("x")) {

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stream.eatWhile(/[0-9a-fA-F]/);

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return "number";

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}

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stream.eatWhile(/\d/);

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return "number";

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}

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if (/\w/.test(ch)) {

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stream.eatWhile(/\w/);

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if (stream.eat(":")) {

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return 'tag';

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}

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cur = stream.current().toLowerCase();

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style = registers[cur];

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return style || null;

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}

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for (var i = 0; i < custom.length; i++) {

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style = custom[i](ch, stream, state);

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if (style) {

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return style;

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}

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}

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lineComment: lineCommentStartSymbol,

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blockCommentStart: "/*",

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blockCommentEnd: "*/"

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};

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});

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});

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