@asm80/core

<!doctype html> <html lang="en"> <head> <title>Code coverage report for asm80-core/asm.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <link rel="shortcut icon" type="image/x-icon" href="../favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="../index.html">All files</a> / <a href="index.html">asm80-core</a> asm.js</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 95.4% Statements 187/196 </div> <div class='fl pad1y space-right2'> 85.29% Branches 29/34 </div> <div class='fl pad1y space-right2'> 100% Functions 4/4 </div> <div class='fl pad1y space-right2'> 95.4% Lines 187/196 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. <template id="filterTemplate"> <div class="quiet"> Filter: <input oninput="onInput()" type="search" id="fileSearch"> </div> </template> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a> <a name='L2'></a><a href='#L2'>2</a> <a name='L3'></a><a href='#L3'>3</a> <a name='L4'></a><a href='#L4'>4</a> <a name='L5'></a><a href='#L5'>5</a> <a name='L6'></a><a href='#L6'>6</a> <a name='L7'></a><a href='#L7'>7</a> <a name='L8'></a><a href='#L8'>8</a> <a name='L9'></a><a href='#L9'>9</a> <a name='L10'></a><a href='#L10'>10</a> <a name='L11'></a><a href='#L11'>11</a> <a name='L12'></a><a href='#L12'>12</a> <a name='L13'></a><a href='#L13'>13</a> <a name='L14'></a><a href='#L14'>14</a> <a name='L15'></a><a href='#L15'>15</a> <a name='L16'></a><a href='#L16'>16</a> <a name='L17'></a><a href='#L17'>17</a> <a name='L18'></a><a href='#L18'>18</a> <a name='L19'></a><a href='#L19'>19</a> <a name='L20'></a><a 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1x</td><td class="text"><pre class="prettyprint lang-js">// this is a main file, you know...   import {lst, html} from "./listing.js" import { pass1 } from "./pass1.js"; import {pass2} from "./pass2.js"; import {objCode, linkModules} from "./objcode.js" import * as Parser from "./parser.js";   //import all CPUs import {I8080} from "./cpu/i8080.js"; import {M6800} from "./cpu/m6800.js"; import { C6502 } from "./cpu/c6502.js"; import { Z80 } from "./cpu/z80.js"; import { I8008 } from "./cpu/i8008.js"; import { CDP1802 } from "./cpu/cdp1802.js"; import { M6809 } from "./cpu/m6809.js"; const cpus = [I8080, M6800, C6502, Z80, I8008, CDP1802, M6809];   /** * Compiles assembly source code into machine code * @param {string} source - Assembly source code * @param {Object} fileSystem - File system interface with readFile method * @param {Object} opts - Compilation options * @param {string} opts.assembler - Assembler name or object * @param {string} filename - Source filename for error reporting * @returns {Object} Compilation result with dump, vars, xref, and opts * @throws {Object} Error object with compilation details */ export const compile = async (source, fileSystem, opts = {assembler:null}, filename="noname") => {   if (typeof opts.assembler == "string") { opts.assembler = cpus.find(x=>x.cpu.toUpperCase()==opts.assembler.toUpperCase()); }   if (!opts.assembler || typeof opts.assembler != "object") { throw {msg:"No assembler specified", s:"Assembler error"}; }   opts = {...opts, readFile: fileSystem.readFile, endian:false, ENT:null, BINFROM:null, BINTO:null, ENGINE:null, PRAGMAS:[], includedFiles:{}, endian:opts.assembler.endian, xfre: {}, xref: {}, } try {   // parse source code into internal representation let parsedSource = await Parser.parse(source, opts);   // pass 1: prepare instruction codes and try to evaluate expressions let metacode = await pass1(parsedSource, null, opts)   // metacode is passed again and again until all expressions are evaluated metacode = await pass1(metacode[0], metacode[1], opts); metacode = await pass1(metacode[0], metacode[1], opts); metacode = await pass1(metacode[0], metacode[1], opts); metacode = await pass1(metacode[0], metacode[1], opts);   metacode[1]["__PRAGMAS"] = opts.PRAGMAS; // pass 2: assign addresses to labels and evaluate expressions // (this pass is not repeated) // It should be all resolved aftrer the 2nd pass metacode = pass2(metacode, opts);   //new output, broke backward compatibility let out = { dump: metacode[0], vars: metacode[1], xref: opts.xref, opts: opts, }   // is it a module?   let vars = metacode[1]; if (vars && typeof vars.__PRAGMAS !== "undefined" && vars.__PRAGMAS.indexOf("MODULE") != -1) { let obj = objCode(metacode[0],metacode[1],opts,filename) out.obj = obj; }   return out } catch (e) { // Some error occured //console.log(e) let s = e.s || "Internal error";       //no message, so we use the general one //FALLBACK - should be removed in future version if (!e.msg) { throw { error: { msg: `Cannot evaluate line ${opts.WLINE.numline}, there is some unspecified error (e.g. reserved world as label etc.)`, wline: opts.WLINE } } } if (!e.s) e.s = s; throw { error: { msg: e.msg, s: e.s, //wline: opts.WLINE } }; } }   /** * Extracts filename from full path * @param {string} fullpath - Full file path * @returns {string} Filename without path */ const getfn = (fullpath) => { let parts = fullpath.split("/"); return parts[parts.length-1]; }   /** * Compiles assembly code from a file * @param {string} filePath - Path to assembly source file * @param {Object} fileSystem - File system interface with readFile method * @param {Object} opts - Compilation options * @returns {Object} Compilation result */ export const compileFromFile = async (filePath, fileSystem, opts = {assembler:null}) => { let source = await fileSystem.readFile(filePath); return compile(source, fileSystem, opts, getfn(filePath)); }   //----------------------------------------   // linker   /** * Links multiple object modules into a single executable * @param {Object} linkList - Link list configuration * @param {Array} linkList.modules - Array of module names to link * @param {Array} linkList.library - Array of library names to link * @param {Object} fileSystem - File system interface with readFile method * @param {string} name - Output name for the linked executable * @returns {Object} Linked executable data * @throws {Object} Error if modules have incompatible CPU or endian settings */ const link = async (linkList, fileSystem, name="noname") => { let cpu = null let endian = null let modules = await Promise.all(linkList.modules.map(async m => { let f = JSON.parse(await fileSystem.readFile(m+".obj")) //checker if (!cpu) cpu = f.cpu; if (cpu != f.cpu) throw {msg:"Different CPU in module "+m, s:"Linker error"}; if (!endian) endian = f.endian; if (endian != f.endian) throw {msg:"Different endian in module "+m, s:"Linker error"}; return f })) let library = await Promise.all(linkList.library.map(async m => { let f = JSON.parse(await fileSystem.readFile(m+".obj")) if (cpu != f.cpu) throw {msg:"Different CPU in library file "+m, s:"Linker error"}; if (endian != f.endian) throw {msg:"Different endian in library file "+m, s:"Linker error"}; return f }))   linkList.endian = endian   let out = linkModules(linkList,modules, library)   return out //fs.writeFileSync("./test/suite/"+name+".combined",JSON.stringify(out)) }     /** * Main assembler interface object */ export const asm = { lst, html, compile, compileFromFile, link, cpus }</pre></td></tr></table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> at 2025-06-24T15:15:27.758Z </div> <script src="../prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="../sorter.js"></script> <script 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