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Diffstat (limited to '3rdparty/asmjit/db/aarch32.js')
| -rw-r--r-- | 3rdparty/asmjit/db/aarch32.js | 987 |
1 files changed, 987 insertions, 0 deletions
diff --git a/3rdparty/asmjit/db/aarch32.js b/3rdparty/asmjit/db/aarch32.js new file mode 100644 index 00000000000..6f9d61651e0 --- /dev/null +++ b/3rdparty/asmjit/db/aarch32.js @@ -0,0 +1,987 @@ +// This file is part of AsmJit project <https://asmjit.com> +// +// See <asmjit/core.h> or LICENSE.md for license and copyright information +// SPDX-License-Identifier: Zlib + +(function($scope, $as) { +"use strict"; + +function FAIL(msg) { throw new Error("[AArch32] " + msg); } + +// Import +// ====== + +const base = $scope.base ? $scope.base : require("./base.js"); +const exp = $scope.exp ? $scope.exp : require("./exp.js") + +const dict = base.dict; +const NONE = base.NONE; +const Parsing = base.Parsing; +const MapUtils = base.MapUtils; + +// Export +// ====== + +const arm = $scope[$as] = dict(); + +// Database +// ======== + +arm.dbName = "isa_aarch32.json"; + +// asmdb.aarch32.Utils +// =================== + +// Can be used to assign the number of bits each part of the opcode occupies. +// NOTE: THUMB instructions that use halfword must always specify the width +// of all registers as many instructions accept only LO (r0..r7) registers. +const FieldInfo = { + "P" : { "bits": 1 }, + "U" : { "bits": 1 }, + "W" : { "bits": 1 }, + "S" : { "bits": 1 }, + "R" : { "bits": 1 }, + "H" : { "bits": 1 }, + "isFp32": { "bits": 1 }, + "F" : { "bits": 1 }, + "align" : { "bits": 2 }, + "ja" : { "bits": 1 }, + "jb" : { "bits": 1 }, + "op" : { "bits": 1 }, // TODO: This should be fixed. + "sz" : { "bits": 2 }, + "sop" : { "bits": 2 }, + "cond" : { "bits": 4 }, + "cmode" : { "bits": 4 }, + "Cn" : { "bits": 4 }, + "Cm" : { "bits": 4 }, + + "Rd" : { "bits": 4, "read": false, "write": true }, + "Rd2" : { "bits": 4, "read": false, "write": true }, + "RdLo" : { "bits": 4, "read": false, "write": true }, + "RdHi" : { "bits": 4, "read": false, "write": true }, + "RdList": { "bits": 4, "read": false, "write": true , "list": true }, + "Rx" : { "bits": 4, "read": true , "write": true }, + "RxLo" : { "bits": 4, "read": true , "write": true }, + "RxHi" : { "bits": 4, "read": true , "write": true }, + "Rn" : { "bits": 4, "read": true , "write": false }, + "Rm" : { "bits": 4, "read": true , "write": false }, + "Ra" : { "bits": 4, "read": true , "write": false }, + "Rs" : { "bits": 4, "read": true , "write": false }, + "Rs2" : { "bits": 4, "read": true , "write": false }, + "RsList": { "bits": 4, "read": true , "write": false , "list": true }, + + "Sd" : { "bits": 4, "read": false, "write": true }, + "Sd2" : { "bits": 4, "read": false, "write": true }, + "SdList": { "bits": 4, "read": false, "write": true , "list": true }, + "Sx" : { "bits": 4, "read": true , "write": true }, + "Sn" : { "bits": 4, "read": true , "write": false }, + "Sm" : { "bits": 4, "read": true , "write": false }, + "Ss" : { "bits": 4, "read": true , "write": false }, + "Ss2" : { "bits": 4, "read": true , "write": false }, + "SsList": { "bits": 4, "read": true , "write": false , "list": true }, + + "Dd" : { "bits": 4, "read": false, "write": true }, + "Dd2" : { "bits": 4, "read": false, "write": true }, + "Dd3" : { "bits": 4, "read": false, "write": true }, + "Dd4" : { "bits": 4, "read": false, "write": true }, + "DdList": { "bits": 4, "read": false, "write": true , "list": true }, + "Dx" : { "bits": 4, "read": true , "write": true }, + "Dx2" : { "bits": 4, "read": true , "write": true }, + "Dn" : { "bits": 4, "read": true , "write": false }, + "Dn2" : { "bits": 4, "read": true , "write": false }, + "Dn3" : { "bits": 4, "read": true , "write": false }, + "Dn4" : { "bits": 4, "read": true , "write": false }, + "Dm" : { "bits": 4, "read": true , "write": false }, + "Ds" : { "bits": 4, "read": true , "write": false }, + "Ds2" : { "bits": 4, "read": true , "write": false }, + "Ds3" : { "bits": 4, "read": true , "write": false }, + "Ds4" : { "bits": 4, "read": true , "write": false }, + "DsList": { "bits": 4, "read": true , "write": false , "list": true }, + + "Vd" : { "bits": 4, "read": false, "write": true }, + "Vd2" : { "bits": 4, "read": false, "write": true }, + "Vd3" : { "bits": 4, "read": false, "write": true }, + "Vd4" : { "bits": 4, "read": false, "write": true }, + "Vx" : { "bits": 4, "read": true , "write": true }, + "Vx2" : { "bits": 4, "read": true , "write": true }, + "Vn" : { "bits": 4, "read": true , "write": false }, + "Vm" : { "bits": 4, "read": true , "write": false }, + "Vs" : { "bits": 4, "read": true , "write": false }, + "Vs2" : { "bits": 4, "read": true , "write": false }, +}; + +arm.FieldInfo = FieldInfo; + +// ARM utilities. +class Utils { + static splitInstructionSignature(s) { + const names = s.match(/^[\w\|]+/)[0]; + s = s.substring(names.length); + + const opOffset = s.indexOf(" ") + const suffix = s.substring(0, opOffset).trim(); + const operands = opOffset === -1 ? "" : s.substring(opOffset + 1).trim(); + + return { + names: names.split("|").map((base)=>{ return base + suffix}), + operands: operands + } + } + + static parseShiftOp(s) { + const m = s.match(/^(sop|lsl_or_asr|lsl|lsr|asr|ror|rrx) /); + return m ? m[1] : ""; + } + + static parseDtArray(s) { + const out = []; + if (!s) return out; + + const arr = s.split("|"); + let i; + + // First expand anything between X-Y, for example s8-32 would be expanded to [s8, s16, s32]. + for (i = 0; i < arr.length; i++) { + const v = arr[i]; + + if (v.indexOf("-") !== -1) { + const m = /^([A-Za-z]+)?(\d+)-(\d+)$/.exec(v); + if (!m) + FAIL(`Couldn't parse '${s}' data-type`); + + let type = m[1] || ""; + let size = parseInt(m[2], 10); + let last = parseInt(m[3], 10); + + if (!Utils.checkDtSize(size) || !Utils.checkDtSize(last)) + FAIL(`Invalid dt width in '${s}'`); + + do { + out.push(type + String(size)); + size <<= 1; + } while (size <= last); + } + else { + out.push(v); + } + } + + // Now expand 'x' to 's' and 'u'. + i = 0; + while (i < out.length) { + const v = out[i]; + if (v.startsWith("x")) { + out.splice(i, 1, "s" + v.substr(1), "u" + v.substr(1)); + i += 2; + } + else { + i++; + } + } + + return out; + } + + static checkDtSize(x) { + return x === 8 || x === 16 || x === 32 || x === 64; + } +} +arm.Utils = Utils; + +function normalizeNumber(n) { + return n < 0 ? 0x100000000 + n : n; +} + +function decomposeOperand(s) { + const elementSuffix = "[#i]"; + let element = null; + let consecutive = 0; + let userRegList = false; + + if (s.endsWith("^")) { + userRegList = true; + s = s.substring(0, s.length - 1); + } + + if (s.endsWith(elementSuffix)) { + element = "#i"; + s = s.substring(0, s.length - elementSuffix.length); + } + + if (s.endsWith("++")) { + consecutive = 2; + s = s.substr(0, s.length - 2); + } + else if (s.endsWith("+")) { + consecutive = 1; + s = s.substr(0, s.length - 1); + } + + let m = s.match(/==|\!=|>=|<=|\*/); + let restrict = false; + + if (m) { + restrict = s.substr(m.index); + s = s.substr(0, m.index); + } + + return { + data : s, + element : element, + restrict: restrict, + consecutive: consecutive, + userRegList: true + }; +} + +function splitOpcodeFields(s) { + const arr = s.split("|"); + const out = []; + + for (let i = 0; i < arr.length; i++) { + const val = arr[i]; + if (/^[0-1A-Z]{2,}$/.test(val)) + out.push.apply(out, val.match(/([0-1]+)|[A-Z]/g)); + else + out.push(val); + } + + return out.map((field) => { return field.trim(); }); +} + +// asmdb.aarch32.Operand +// ===================== + +// ARM operand. +class Operand extends base.Operand { + constructor(def) { + super(); + this.data = def; + } + + hasMemModes() { + return Object.keys(this.memModes).length !== 0; + } + + get name() { + switch (this.type) { + case "reg": return this.reg; + case "mem": return this.mem; + case "imm": return this.imm; + case "rel": return this.rel; + default : return ""; + } + } + + get scale() { + if (this.restrict && this.restrict.startsWith("*")) + return parseInt(this.restrict.substr(1), 10); + else + return 0; + } + + isRelative() { + if (this.type === "imm") + return this.name === "relA" || this.name === "relS" || this.name === "relZ"; + else + return false; + } +} +arm.Operand = Operand; + +// asmdb.aarch32.Instruction +// ========================= + +function patternFromOperand(key) { + return key; + // return key.replace(/\b(?:[RVDS](?:d|s|n|m|x|x2))\b/, "R"); +} + +// Rewrite a memory operand expression (either base or index) to a simplified one, which is okay +// to be generated as C++ expression. In general, we want to simplify != to a more favorable code. +function simplifyMemoryExpression(e) { + if (e.type === "binary" && e.op === "!=" && e.right.type === "var") { + // Rewrite A != PC to A < PC + if (e.right.name === "PC") { e.op = "<"; } + + // Rewrite A != HI to A < 8 + if (e.right.name === "HI") { e.op = "<"; e.right = exp.Imm(8); } + + // Rewrite A != XX to A < SP || A == LR + if (e.right.name === "XX") { + return exp.Or(exp.Lt(e.left, exp.Var("SP")), + exp.Eq(e.left.clone(), exp.Var("LR"))); + } + } + + return e; +} + +// ARM instruction. +class Instruction extends base.Instruction { + constructor(db, data) { + super(db, data); + // name, operands, encoding, opcode, metadata + + const encoding = Object.hasOwn(data, "a32") ? "a32" : + Object.hasOwn(data, "t32") ? "t32" : + Object.hasOwn(data, "t16") ? "t16" : ""; + + this.name = data.name; + this.it = dict(); // THUMB's 'it' flags. + this.apsr = dict(); + this.fpcsr = dict(); + this.calc = dict(); // Calculations required to generate opcode. + this.immCond = []; // Immediate value conditions (array of conditions). + + this.s = null; // Instruction S flag (null, true, or false). + this.dt = []; // Instruction <dt> field (first data-type). + this.dt2 = []; // Instruction <dt2> field (second data-type). + + this.availableFrom = ""; // Instruction supported by from ARMv???. + this.availableUntil = ""; // Instruction supported by until ARMv???. + + this._assignOperands(data.operands); + this._assignEncoding(encoding.toUpperCase()); + this._assignOpcode(data[encoding]); + + for (let k in data) { + if (k === "name" || k == encoding || k === "operands") + continue; + this._assignAttribute(k, data[k]); + } + + this._updateOperandsInfo(); + this._postProcess(); + } + + _assignAttribute(key, value) { + switch (key) { + case "it": + for (let it of value.split(" ")) + this.it[it.trim()] = true; + break; + + case "apsr": + case "fpcsr": + this._assignAttributeKeyValue(key, value); + break; + + case "imm": + this.imm = exp.parse(value); + break; + + case "calc": + for (let calcKey in value) + this.calc[calcKey] = exp.parse(value[calcKey]); + break; + + default: + super._assignAttribute(key, value); + } + } + + _assignAttributeKeyValue(name, content) { + const attributes = content.trim().split(/[ ]+/); + + for (let i = 0; i < attributes.length; i++) { + const attr = attributes[i].trim(); + if (!attr) + continue; + + const eq = attr.indexOf("="); + let key = eq === -1 ? attr : attr.substr(0, eq); + let val = eq === -1 ? true : attr.substr(eq + 1); + + // If the key contains "|" it's a definition of multiple attributes. + if (key.indexOf("|") !== -1) { + const dot = key.indexOf("."); + + const base = dot === -1 ? "" : key.substr(0, dot + 1); + const keys = (dot === -1 ? key : key.substr(dot + 1)).split("|"); + + for (let j = 0; j < keys.length; j++) + this[name][base + keys[j]] = val; + } + else { + this[name][key] = val; + } + } + } + + _assignEncoding(s) { + this.arch = s === "T16" || s === "T32" ? "THUMB" : "ARM"; + this.encoding = s; + } + + _assignOperands(s) { + if (!s) return; + + // Split into individual operands and push them to `operands`. + const arr = base.Parsing.splitOperands(s); + for (let i = 0; i < arr.length; i++) { + let def = arr[i]; + const op = new Operand(def); + + const consecutive = def.match(/(\d+)x\{(.*)\}([+][+]?)/); + if (consecutive) + def = consecutive[2]; + + op.sign = false; + op.element = null; + op.shiftOp = ""; + op.shiftImm = null; + + // Handle {optional} attribute. + if (Parsing.isOptional(def)) { + op.optional = true; + def = Parsing.clearOptional(def); + } + + // Handle commutativity <-> symbol. + if (Parsing.isCommutative(def)) { + op.commutative = true; + def = Parsing.clearCommutative(def); + } + + // Handle shift operation. + let shiftOp = Utils.parseShiftOp(def); + if (shiftOp) { + op.shiftOp = shiftOp; + def = def.substring(shiftOp.length + 1); + } + + if (def.startsWith("[")) { + op.type = "mem"; + op.memModes = dict(); + + op.base = null; + op.index = null; + op.offset = null; + + let mem = def; + let didHaveMemMode = false; + + for (;;) { + if (mem.endsWith("!")) { + op.memModes.preIndex = true; + mem = mem.substring(0, mem.length - 1); + + didHaveMemMode = true; + break; + } + + if (mem.endsWith("@")) { + op.memModes.postIndex = true; + mem = mem.substring(0, mem.length - 1); + + didHaveMemMode = true; + break; + } + + if (mem.endsWith("{!}")) { + op.memModes.offset = true; + op.memModes.preIndex = true; + mem = mem.substring(0, mem.length - 3); + + didHaveMemMode = true; + continue; + } + + if (mem.endsWith("{@}")) { + op.memModes.offset = true; + op.memModes.postIndex = true; + mem = mem.substring(0, mem.length - 3); + + didHaveMemMode = true; + continue; + } + + break; + } + + if (!mem.endsWith("]")) + FAIL(`Unknown memory operand '${mem}' in '${def}'`); + + let parts = mem.substring(1, mem.length - 1).split(",").map(function(s) { return s.trim() }); + for (let i = 0; i < parts.length; i++) { + const part = parts[i]; + + const m = part.match(/^\{(lsl|sop)\s+#(\w+)\}$/); + if (m) { + op.shiftOp = m[1]; + op.shiftImm = m[2]; + continue; + } + + if (i === 0) { + op.base = dict(); + op.base.field = part; + op.base.exp = null; + + const m = part.match(/^([A-Za-z]\w*)/); + if (m.length < part.length) { + op.base.exp = simplifyMemoryExpression(exp.parse(part)); + op.base.field = m[1]; + } + } + else if (part.startsWith("#")) { + let p = part.substring(1); + let u = "1"; + let alwaysNegative = false; + + let offExp = null; + let offMul = 1; + + if (p.startsWith("+/-")) { + u = "U"; + p = p.substring(3); + } + + if (p.startsWith("-")) { + alwaysNegative = false; + p = p.substring(1); + } + + const expMatch = p.match(/^([A-Za-z]\w*)==/); + if (expMatch) { + offExp = exp.parse(p); + p = p.substr(0, expMatch[1].length); + } + + const mulMatch = p.match(/\s*\*\s*(\d+)$/); + if (mulMatch) { + offMul = parseInt(mulMatch[1]); + p = p.substr(0, mulMatch.index); + } + + op.offset = dict(); + op.offset.field = p; + op.offset.u = u; + op.offset.exp = offExp; + op.offset.mul = offMul; + op.offset.negative = alwaysNegative; + } + else { + let p = part; + let u = "1"; + + if (p.startsWith("+/-")) { + u = "U"; + p = p.substring(3); + } + + op.index = dict(); + op.index.field = p; + op.index.u = u; + + const m = p.match(/^([A-Za-z]\w*)/); + if (m.length < p.length) { + op.index.exp = simplifyMemoryExpression(exp.parse(p)); + op.index.field = m[1]; + } + } + } + + if (!op.hasMemModes() && (op.offset || op.index)) + op.memModes.offset = true; + + op.mem = mem; + } + else if (def.startsWith("#")) { + const obj = decomposeOperand(def); + const imm = obj.data; + + op.type = "imm"; + op.imm = imm.substring(1); // Immediate operand name. + op.immSize = 0; // Immediate size in bits. + op.restrict = obj.restrict; // Immediate condition. + } + else { + const obj = decomposeOperand(def); + const reg = obj.data; + + const type = reg.substr(0, 1).toLowerCase(); + const info = FieldInfo[reg]; + + if (!info) + FAIL(`Unknown register operand '${reg}' in '${def}'`); + + op.type = info.list ? "reg-list" : "reg"; + op.reg = reg; // Register name (as specified in manual). + op.regType = type; // Register type. + op.regList = !!info.list; // Register list. + op.read = info.read; // Register access (read). + op.write = info.write; // Register access (write). + op.element = obj.element; // Register element[] access. + op.restrict = obj.restrict; // Register condition. + op.consecutive = obj.consecutive; + } + + this.operands.push(op); + + if (consecutive) { + const count = parseInt(consecutive[1]); + for (let n = 2; n <= count; n++) { + const def = consecutive[3].replace(op.reg, op.reg + n); + const opN = new Operand(def); + opN.type = "reg"; + opN.reg = op.reg + n; + opN.regType = op.regType; + opN.read = op.read; + opN.write = op.write; + opN.element = op.element; + opN.consecutive = consecutive[3].length; + this.operands.push(opN); + } + } + } + } + + _assignOpcode(s) { + this.opcodeString = s; + + let opcodeIndex = 0; + let opcodeValue = 0; + + let patternMap = {}; + + // Split opcode into its fields. + const arr = splitOpcodeFields(s); + const dup = dict(); + + const fields = this.fields; + const pattern = []; + + const fieldMap = Object.create(null); + for (let field of arr) { + fieldMap[field] = true; + } + + for (let i = arr.length - 1; i >= 0; i--) { + let key = arr[i]; + let m; + + if (/^[0-1]+$/.test(key)) { + // This part of the opcode is RAW bits, they contribute to the `opcodeValue`. + opcodeValue |= parseInt(key, 2) << opcodeIndex; + opcodeIndex += key.length; + pattern.unshift("_".repeat(key.length)); + } + else { + pattern.unshift(patternFromOperand(key)); + patternMap[patternFromOperand(key)] = true; + + let size = 0; + let mask = 0; + let bits = 0; + let from = -1; + + let lbit = key.startsWith("'"); + let hbit = key.endsWith("'"); + + if ((m = key.match(/\[\s*(\d+)\s*\:\s*(\d+)\s*\]$/))) { + const a = parseInt(m[1], 10); + const b = parseInt(m[2], 10); + if (a < b) + FAIL(`Invalid bit range '${key}' in opcode '${s}'`); + from = b; + size = a - b + 1; + mask = ((1 << size) - 1) << b; + key = key.substr(0, m.index).trim(); + } + else if ((m = key.match(/\[\s*(\d+)\s*\]$/))) { + from = parseInt(m[1], 10); + size = 1; + mask = 1 << from; + key = key.substr(0, m.index).trim(); + } + else if ((m = key.match(/\:\s*(\d+)$/))) { + size = parseInt(m[1], 10); + bits = size; + key = key.substr(0, m.index).trim(); + } + else { + const key_ = key; + + if (lbit || hbit) { + from = 0; + + if (lbit && hbit) + FAIL(`Couldn't recognize the format of '${key}' in opcode '${s}'`); + + if (lbit) { + key = key.substring(1); + } + + if (hbit) { + key = key.substring(0, key.length - 1); + from = 4; + } + + size = 1; + } + else if (FieldInfo[key]) { + // Sizes of some standard fields can be assigned automatically. + size = FieldInfo[key].bits; + bits = size; + + if (fieldMap["'" + key]) + from = 1; + } + else if (key.length === 1) { + // Sizes of one-letter fields (like 'U', 'F', etc...) is 1 if not specified. + size = 1; + bits = 1; + } + else { + FAIL(`Couldn't recognize the size of '${key}' in opcode '${s}'`); + } + + if (dup[key_] === true) { + bits = 0; + lbit = 0; + hbit = 0; + } + else { + dup[key_] = true; + } + } + + let field = fields[key]; + if (!field) { + field = { + index: opcodeIndex, + values: [], + bits: 0, + mask: 0, + lbit: 0, + hbit: 0 // Only 1 if a single quote (') was used. + } + fields[key] = field; + } + + if (from === -1) + from = field.bits; + + field.mask |= mask; + field.bits += bits; + field.lbit += lbit; + field.hbit += hbit; + field.values.push({ + index: opcodeIndex, + from: from, + size: size + }); + + opcodeIndex += size; + } + } + + for (let i = 0; i < pattern.length; i++) + if (pattern[i] === 'U') + pattern[i] = "_"; + + // Normalize all fields. + for (let key in fields) { + const field = fields[key]; + + // There should be either number of bits or mask, there shouldn't be both. + if (!field.bits && !field.mask) + FAIL(`Part '${key}' of opcode '${s}' contains neither size nor mask`); + + if (field.bits && field.mask) + FAIL(`Part '${key}' of opcode '${s}' contains both size and mask`); + + if (field.bits) + field.mask = ((1 << field.bits) - 1); + else if (field.mask) + field.bits = 32 - Math.clz32(field.mask); + + // Handle field that used single-quote. + if (field.lbit) { + field.mask = (field.mask << 1) | 0x1; + field.bits++; + } + + if (field.hbit) { + field.mask |= 1 << field.bits; + field.bits++; + } + + const op = this.operandByName(key); + if (op && op.isImm()) + op.immSize = field.bits; + } + + // Check if the opcode value has the correct number of bits (either 16 or 32). + if (opcodeIndex !== 16 && opcodeIndex !== 32) + FAIL(`The number of bits '${opcodeIndex}' used by the opcode '${s}' doesn't match 16 or 32`); + this.opcodeValue = normalizeNumber(opcodeValue); + } + + _assignSpecificAttribute(key, value) { + // Support ARMv?+ and ARMv?- attributes. + if (/^ARM\w+[+-]$/.test(key)) { + const armv = key.substr(0, key.length - 1); + const sign = key.substr(key.length - 1); + + if (sign === "+") + this.availableFrom = armv; + else + this.availableUntil = armv; + return true; + } + + switch (key) { + case "it": { + const values = String(value).split("|"); + for (let i = 0; i < values.length; i++) { + const value = values[i]; + switch (value) { + case "in" : this.it.IN = true; break; + case "out" : this.it.OUT = true; break; + case "any" : this.it.IN = true; + this.it.OUT = true; break; + case "last": this.it.LAST = true; break; + case "def" : this.it.DEF = true; break; + default: + this.report(`${this.name}: Unhandled IT value '${value}'`); + } + } + return true; + } + } + + return false; + } + + // ARM instruction name could consist of name and optional type information + // specified as <dt> and <dt2> in ARM manuals. We parse this information and + // store it to `dt` and `dt2` fields. In addition, we also recognize the `S` + // suffix (uppercase) of the instruction and mark it as `S` instruction. After + // that the name is normalized to be lowercased. + // + // This functionality requires all the instruction data to be already set-up. + _postProcess() { + let s = this.name; + + // Parse <dt> and <dt2> fields. + if (s.indexOf(".") !== -1) { + const parts = s.split("."); + this.name = parts[0]; + + if (parts.length > 3) + FAIL(`Couldn't recognize name attributes of '${s}'`); + + for (let i = 1; i < parts.length; i++) { + const dt = Utils.parseDtArray(parts[i]); + if (i === 1) + this.dt = dt; + else + this.dt2 = dt; + } + } + + // Recognize "S" suffix. + if (this.name.endsWith("S")) { + this.name = this.name.substr(0, this.name.length - 1) + "s"; + this.s = true; + } + + this.dt.sort(); + } + + operandByName(name) { + const operands = this.operands; + for (let i = 0; i < operands.length; i++) { + const op = operands[i]; + if (op.name === name) + return op; + } + return null; + } +} +arm.Instruction = Instruction; + +// asmdb.aarch32.ISA +// ================= + +function mergeGroupData(data, group) { + for (let k in group) { + switch (k) { + case "group": + case "data": + break; + + case "ext": + data[k] = (data[k] ? data[k] + " " : "") + group[k]; + break; + + default: + if (data[k] === undefined) + data[k] = group[k] + break; + } + } +} + +class ISA extends base.ISA { + constructor(data) { + super(data); + this.addData(data || NONE); + } + + _addInstructions(groups) { + for (let group of groups) { + for (let inst of group.data) { + const sgn = Utils.splitInstructionSignature(inst.inst); + const data = MapUtils.cloneExcept(inst, { "inst": true }); + + mergeGroupData(data, group) + + for (let j = 0; j < sgn.names.length; j++) { + data.name = sgn.names[j]; + data.operands = sgn.operands; + if (j > 0) + data.aliasOf = sgn.names[0]; + this._addInstruction(new Instruction(this, data)); + } + } + } + + return this; + } +/* + _addInstructions(instructions) { + for (let i = 0; i < instructions.length; i++) { + const obj = instructions[i]; + const sgn = obj.inst; + const sep = sgn.indexOf(" "); + + const names = (sep !== -1 ? sgn.substring(0, sep) : sgn).trim().split("/"); + const operands = sep !== -1 ? sgn.substring(sep + 1) : ""; + + const encoding = Object.hasOwn(obj, "a32") ? "a32" : + Object.hasOwn(obj, "t32") ? "t32" : + Object.hasOwn(obj, "t16") ? "t16" : ""; + + if (!encoding) + FAIL(`Instruction ${names.join("/")} doesn't encoding, it must provide either a32, t32, or t16 field`); + + for (let j = 0; j < names.length; j++) { + const inst = new Instruction(this, names[j], operands, encoding.toUpperCase(), obj[encoding], obj); + if (j > 0) + inst.aliasOf = names[0]; + this._addInstruction(inst); + } + } + + return this; + } +*/ +} +arm.ISA = ISA; + +}).apply(this, typeof module === "object" && module && module.exports + ? [module, "exports"] : [this.asmdb || (this.asmdb = {}), "aarch32"]); |
