Better Economics: Ham Radio Assembly Language for Browsers

<!DOCTYPE html>

<html>

body {background-color: gray;}

td { overflow='clip';}

textarea

{background-color: green; color: white; font-size: 25px; padding = 10px}

canvas {background-color=navy;}

th { color:black}

select { color:black;background-color : lime}

table {color: blue; text-align: center; border : 2px;}

button {background-color : red }

h1 {background-color : green; font-size : 24px; }

ul {background-color : blue; color : white; border : 4px ; text-align : center}

caption {background-color : yellow;font-size:20px;}

p {background-color : yellow; color: black;font-size: 15px;

text-align: center; vertical-align : top; width " 70"; hidden=true}

</style>

<button onclick ='cancel()'>Cancel</button>

<textarea cols=50 rows = 3 font-size = 14px>Javascript libraries use this part of the screen for user input. The dialog docking area. Operators hide this window as desired.</textarea>

</form>

<div>

<caption>Simple Menu System V1.77</caption>

<tr>

<td>

</td>

<td>

</td>

</tr>

</tbody>

</table>

</div>

<br>

<caption>Incoming Connection Reports</caption>

<tr>

<td ><textarea class = 'Display' cols=15 id = "D1"> Frequ 10</textarea></td>

<td><textarea class = 'Display' cols=15 id = "D2"> Power 10</textarea>

</td>

</tr>

<tr>

</td>

</td>

</tr>

</tbody>

</table>

<div >

</colgroup>

<caption>Ham Assembly Language</caption>

<tr>

<option onclick = 'closeText()'>Close</option>

<option onclick = 'createText()'>Create</option>

</select>

</th>

<th id = 'sources' contenteditable=true>Sources</th>

</tr>

<td>

</td>

<td>

<textarea class = 'visible' id = 'logger' cols="35" rows="25" border = 2 >Logger </textarea>

</td>

<td>

</td>

</tr>

</tbody>

</table>

</div>

<li class = 'debug' onclick = 'DebugStep(TOKEN)'>Token</li>

</ul>

<li class = "method" onclick ="USBConnect(current)">Connect</li>

<li class = "method" onclick ="getports()">Ports</li>

<li class = "method" onclick ="writeport()">Write</li>

<li class = "method" onclick ="closeport()">Close</li>

</ul>

<li class = 'list' onclick ="listLibrary()">Library</li>

<li class = 'list' onclick ="listOpcodes()">Opcodes</li>

<li class = 'list' onclick ="listSysOps();">Sysops</li>

<li class = 'list' onclick ="listSymbols();">Symbols</li>

</ul>

#log nice start;

add r0 hope;

#log end;

hope sub r0 r2;

#log done it;

</div>

//tokens

// tokens can have various types

// with precedances

// / scoping rules

const NEWLINE = 32;

const LITERAL = 20;

const VAL = 19; const NUM = 18; const REG = 17;

const MUL = 16; const DIV = 15;

const ADD = 14; const SUB = 13;

const LP = 12; const RP = 11;

const COMMA = 10;

const MACRO = 9;

const OP = 8; const SEMI = 7;

const ALPHA = 6;

const SYSOP = 5

const DISCARD = 4;

const QUOTE = 3;

// return status

const OK = 101; const DONE =102; // normal or source done

const WAIT = 103; const ERROR = -3; // forward reference or syntax error

// symbol classes

const USER = 40; const HAL = 41; const CONST = 42;

const EMBED = 43; const MODULE = 44; const LIB = 45;

// step indicators

const TEST = 56; const INIT = 55; const INDEX = 54;

const LINE = 53; const TOKEN = 52; const OFF = 51;

// symbol,states

const NULL = -1; const UNDEF = -2;

const DEF = 202; const PREDEF = 203;

const LOG = document.getElementById('logger');

</script>

//bigtable

// const USER,OP,SYSOP,EMBED,MODULE,LIB / scoping rules

// All symbols in one table, sysops, opodes, user symbols

const Symbol = {str : "",expr : 0,type : 0,value : 0,handle : null}

var symtable = [

{str : 'R0',expr : RegExp(/R0/,'i'),type : USER, value : 0,handle : 0},

{str : 'R1',expr : RegExp(/R1/,'i'),type : USER, value : 1,handle : null},

{str : 'R2',expr : RegExp(/R2/,'i'),type : USER, value : 2,handle : null},

{str : 'R3',expr : RegExp(/R3/,'i'),type : USER, value : 3,handle : null},

{str : 'define', expr : RegExp(/define/), type : SYSOP, value : 0,handle : function(){return define()}},

{str : 'assign', expr : RegExp(/assign/), type : SYSOP,value : 0,handle : function(){return assign() }},

{str : 'include', expr : RegExp(/include/),type : SYSOP,value : 0,handle : function(){return include()}},

{str : 'end', expr : RegExp(/end/), type : SYSOP,value : 0,handle : function(){return OK}},

{str : 'log', expr : RegExp(/log/), type : SYSOP,value : 0,handle : function(){return log()}},

{str : 'ifdef', expr : RegExp(/ifdef/), type : SYSOP,value : 0,handle : function(){return OK }},

{str : 'else', expr : RegExp(/else/) , type : SYSOP,value : 0,handle :

function(){return OK }},

{str : 'seg', expr : RegExp(/seg/) , type : SYSOP,value : 0,handle :

function(){return OK }},

{str : 'add', expr : RegExp(/add/), type : OP, value : 0,handle : null},

{str : 'sub', expr : RegExp(/sub/), type : OP, value : 0,handle : null},

{str : 'mul' ,expr : RegExp(/mul/), type : OP, value : 0,handle : null},

{str : 'div' ,expr : RegExp(/div/), type : OP, value : 0,handle : null},

{str : 'shft',expr : RegExp(/shft/),type : OP, value : 0,handle : null},

{str : 'and', expr : RegExp(/and/), type : OP, value : 0,handle : null},

{str : 'or' ,expr : RegExp(/or/), type : OP, value : 0,handle : null},

{str : 'xor' ,expr : RegExp(/xor/), type : OP, value : 0,handle : null},

{str : 'addi',expr : RegExp(/addi/),type : OP, value : 0,handle : null},

{str : 'subi',expr : RegExp(/subi/),type : OP, value : 0,handle : null},

{str : 'ori', expr : RegExp(/ori/), type : OP, value : 0,handle : null},

{str : 'xori',expr : RegExp(/xori/),type : OP, value : 0,handle : null},

{str : 'clr' ,expr : RegExp(/clr/), type : OP, value : 0,handle : null},

{str : 'comp',expr : RegExp(/comp/),type : OP, value : 0,handle : null},

{str : 'jmp' ,expr : RegExp(/jmp/), type : OP, value : 0,handle : null},

{str : 'call',expr : RegExp(/call/),type : OP, value : 0,handle : null},

{str : 'bre' ,expr : RegExp(/br/) , type : OP, value : 0,handle : null},

{str : 'brn' ,expr : RegExp(/brn/), type : OP, value : 0,handle : null},

{str : 'br' ,expr : RegExp(/brp/), type : OP, value : 0,handle : null},

{str : 'ret' ,expr : RegExp(/ret/), type : OP, value : 0,handle : null},

{str : 'btst',expr : RegExp(/btst/),type : OP, value : 0,handle : null},

{str : 'bset',expr : RegExp(/bset/),type : OP, value : 0,handle : null},

{str : 'ld' ,expr : RegExp(/ld/), type : OP, value : 0,handle : null},

{str : 'ldm' ,expr : RegExp(/stm/), type : OP, value : 0,handle : null},

{str : 'ldw' ,expr : RegExp(/ldw/), type : OP, value : 0,handle : null},

{str : 'st' ,expr : RegExp(/st/), type : OP, value : 0,handle : null},

{str : 'stm' ,expr : RegExp(/stm/), type : OP, value : 0,handle : null},

{str : 'stw' ,expr : RegExp(/stw/), type : OP, value : 0,handle : null}

]

var symLength = symtable.length;

function listSymbols(type) {

clearLog();

strLog('\n Symbols ');

for(let i=0; i < symtable.length;i++)

if(symtable[i] = type)

strLog('\n: ' + i +' ' + symtable[i].str + ' '+symtable[i].expr +' '+symtable[i].value );

}

function symValue(index) {

if(index == false) index =0;

if((index< 0) || (index > symtable.length)) return syntaxError('Bad index');

return symtable[index].value;

}

function addSym(name,type,value) {

var index = findSym(name)

if(index > -1) {

symtable[index].expr = RegExp(name);

symtable[inde].type = type

symtable[index].value = value;

}

else{

var sym = Object(Symbol);

sym.str =name;

sym.expr = RegExp(name)

sym.type = type;

sym.value = value;

symtable.push(sym);

}

return OK;

}

function findSym(name) {

len = name.length;

for(let i =0; i < symtable.length;i++) {

if(len == symtable[i].str.length)

if(symtable[i].expr.test(name)) {

return i;

}

return UNDEF;

}

// Drop entries from user symbols

function delSym() {

do {

if(nextToken() < 0) return syntaxError('No token')

if(index = findSym(cc.slice) < 0)

break;

var type = cc.type;

if(type == SEMI) break;

symtable.splice(index,1);

} while(type != SEMI);

return endOfLine();

}

// assembler found a symbol

// a finite string of alpha numerics

// that begins with an alpha

function symbol(opContext) {

var index;

if(arguments.length == 0) {// symbol defined

console.log('New symbol');

index=newSym(cc.slice(),cc.line())

symtable[index].state = DEF;

symtable[index].value = cc.line();

return waitService(i);

} else { // this maybe a wait

if( (index = findSym(cc.slice())) < 0){

opContext.index =newSym(cc.slice());

return waitRequest(opContext); // opcode context pushed onto wait stack

} else {

if(symtable[index].state == UNDEF) {

opContext.index = index;

return waitRequest(opContext); // opcode context pushed onto wait stace

} else {

cc.setIndex(symtable[index].value)

cc.setType(VAL); //resolved

return OK

}

// text

function clearLog() {

LOG.textContent = ' ';

}

// send string to log

function strLog(str){

LOG.textContent+= str;

}

// send string to log

function strPrependLog(str){

LOG.textContent = str + LOG.textContent;

}

function srcCharByIndex(node,index) {

var ch = node.textContent.charAt(index);

return ch

}

function tokenText(str) {

var s= String();

s = '|'+cc.slice()+'|';

//s.replace(/\n/,'X')

if(arguments > 1) s += str;

strPrependLog(

'\nTok ' + s + ' ' + ' t: ' + cc.type()+' s: '+cc.start()+ ' e: ' + cc.end()+'\n' );

}

// generic find a name among

// a list of html children

function findItemByName(items,name) {

for(i=0;i < items.length;i++)

if(items[i].name == name)

return items[i];

return null;

}

function findText(name) {

items = document.getElementById('textanchor').children;

return findItemByName(items,name);

}

function findListItem(name) {

items = document.getElementsByClassName('openmacro');

return findItemByName(items,name);

}

// when the user clicks on a macro list item

function setListEvent(node) {

node.addEventListener('click', () => {

showText(node.name);

blinkListItems(node.name);

//console.log('Set up ' +node.name)

});

}

function newListItem(name) {

var list = document.createElement('li')

list.name = name;

list.className = 'openmacro'

list.textContent = name

//console.log('NewItem '+ name);

setListEvent(list);

document.getElementById('macroList').appendChild(list);

showText(name);

}

function delListItem(name) {

parent = document.getElementById('macroList');

node = findName(name,parent.children);

parents.removeChild(node);

}

////////////// Methods to manage textareas////////////////

function listTexts() {

var items = document.getElementById('textanchor').children;

for(let i =0; i < items.length;i++) {

strLog(': '+ items[i].name);

}

function saveText() {

strPrependLog('Save\n');

var nameNode = document.getElementById('sources');

var textNode = findTextByName(nameNode.textContent);

if(textNode.hidden == false) {// The macro in focus

localStorage.setItem(nameNode.name,textNode.textContent);

nameSelector();

}

return;

}

// th element as editable input

function newText(name) {

strPrependLog('New\n');

if(name == null)

name = document.findElementByID('sources').textContent;

addText(name);

}

function openText(name) {

strPrependLog('Open\n');

}

function closeText() { strPrependLog('Close\n');

parent = document.getElementById('macroList');

name = document.getElementById('sources').textContent;

node = nodeFindByName(parent.chldren,name);

parent.removeChild(node);

parent = documemt.getElementById('textanchor');

node = nodeFindByName(parent.chldren,name);

parent.removeChild(node);

}

function showText(name) {

items = document.getElementById('textanchor').children;

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

if(items[i].name == name)

items[i].hidden=false;

else

items[i].hidden=true;

document.getElementById('sources').textContent = name;

}

function createText(name) {

var td = document.getElementById('textanchor');

var text = document.createElement('textarea');

text.hidden = false;

text.cols =30

text.rows = 15

if(name == null)

text.name = document.getElementById('sources').textContent;

else

text.name = name;

text.className = 'invisible';

td.appendChild(text);

showText(text.name);

return text;

}

function context() {

this.hidden = true;

this.nextSibling().hidden = false;

//this.parent.onchange();

}

function actionText(node) {

var items = node.children;

for(i=0;i < items.length;i++)

if(items[i].selected) {

items[i].onclick(items[i].value);

return;}

}

function blinkListItems(name) {

items = document.getElementById('macroList').children;

radioButtons(name,items);

}

function source(name) {

getElementById('sources').textContent=name;

showTextArea(name);

console.log('arrived');

}

// Make a name list from local storage

function nameSelector() {

var len = localStorage.length;

parent = document.getElementById('sources');

var sel = document.createElement('select');

sel.hidden = true;

sel.onchange = 'source()'.

parent.append(sel);

for(let i = 0;i < len;i++) {

name = localStorage.key(i);

var opt = document.createElement('option');

opt.textContent = name;

sel.appendChild(opt)

}

opt = document.createElement('option');

opt.textContent='rename';

sel.appendChild(opt);

}

function listLibrary() {

clearLog();

var len = localStorage.length;

strLog('\nLocal storage ' + len)

for(let i =0;i < len;i++) {

var name = localStorage.key(i);

value = localStorage.getItem(name);

strLog('\n '+i+': ' +name + ' '+ value);

}

// sysops

//Install a module from local storage

// put up a selector for it, add its own

// text area, and install the name

// on the sysop table

function installModule(name,str) {

console.log('Install');

if(arguments.length == 2)

localStorage.setItem(name,str);

var index = findSym(name); // is it installed?

if((index > -1) && (index < builtinsLength))

return syntaxError('Opcode redefined i '+index+' '+builtinsLength+'|'+name+'|')

if(index >= 0) { // already in the opcode table

node= findListItem(name);

if(node==null) syntaxError('Library misorder')

node = findText(name)

if(node== 0) syntaxError('Set up wrong')

} else { // new set up

strPrependLog('\nNew set '+name);

node = createText(name);

console.log('Installed '+node.name + ' '+name);

addSym(name);

newListItem(name);

}

node.textContent=localStorage.getItem(name);

return OK;

}

// drop an entry in the sysop table

function undef() {

remove(delSys); }

// in user table

function remove() {

remove(delSym); }

function define() {

do {

if(nextToken() < 0) return syntaxError('No token')

newSysop(cc.slice());

}while(cc.type() != SEMI)

}

// manipulate the user symbol table

function assign(){

do {

if(nextToken() < 0) return syntaxError('No token')

type = cc.type();

if(type() == SEMI) break;

token1 = cc.slice();

if(nextToken() > 0) {

type = cc.type()

if(type ==ARG)

newSym(token1,args.pop());

else if(type = NUM)

newSym(token1,JSON.parse(cc.slice()));

} else

newSym(token1,UNDEF);

strPrependLog('Define: '+ token1 + ' ' + symValue(findSym(token1))+'\n')

} while(cc.type() != SEMI);

//nextToken(); //pass the semi

return endOfLine();

}

function log(ptr){

var start,end;

var eol = endOfLine(); // move the newline pointer

//console.log('log ' + newline.lastIndex + ' '+ SRC.textContent.length);

start = cc.end();

if(newline.lastIndex !== 0)

end = newline.lastIndex-1;

else

end = cc.node().textContent.length;

strPrependLog('\n '+ cc.slice(start,end)+'\n');

return eol;

}

function newSysop(name) {

var i=0;

var symbol = new Object(opCode);

i = findSym(name,optable)

console.log('New sys '+name + ' '+i)

if(i < 0) {// New entry

symbol.str = name;

symbol.expr = RegExp(name);

symbol.idx=optable.length+1;

optable.push(symbol);

opcodesLength = optable.length;

}

return OK;

}

function delsysop(name) {

i = findSym(name,optable);

if(i < 0) return OK;

optable.splice(i,1);

return OK;

}

function include(){

var node;

console.log('Include');

do {

r=nextToken()

var type = cc.type();

if(type == SEMI)

break; // move the newline pointer

if(r < 0) return syntaxError('No token');

if(type != ALPHA) return syntaxError('Expected Name');

var name = cc.slice();

installsysop(name);

strPrependLog('Add sysop '+ name+'\n')

} while(type != SEMI);

return OK;

}

// Bracket quoted HAL must be valid

// Should end with end; pseudo opcode

function macro() {

var index = nextToken();

if(index > -1) syntaxError('cannot redefine');

token = cc.slice();

nextToken();

if(cc.type() != LB) syntaxError('No start');

newOpcode(token,cc.end());

while(true) {

nextToken()

if(cc.type() == RB)

break;

endOfLine(); // skip the line

}

</script>

// sneak in a fake source on startup

function sneak() {

var str = document.getElementById('startcode').textContent

installModule('source',str);

}

sneak();

</script>

// exec

//Define a context of some type of token

// must include the node holding textContent,

// and a start, end, lastIndex

// scanned in a textArea of node, possibly

//having a symbol index pointing into the symbol table

// .

const Context = { start : 0, end : 0, type : 0,

node : 0,index : 0,line:1,lastIndex:0}

var CS = Array();

const cc = {

k : -1,

version : function(){ strPrependLog('V1.0\n')},

length : function(){ return CS[this.k].end - CS[this.k].start;},

get : function() {return CS[this.k]},

clear : function(){CS.length =0; this.k =-1;},

incLine : function(){ CS[this.k].line++;return CS[this.k].line;},

line : function(){ return CS[this.k].line;},

push : function(x){ this.k++; return CS.push(x)},

pop : function(){ this.k--; return CS.pop()},

startChar : function(){ return CS[this.k].node.textContent.charAt(CS[this.k].start)},

endChar : function(){ return CS[this.k].node.textContent.charAt(CS[this.k].end)},

indexChar : function(index) { return CS[this.k].node.textContent.charAt(index);},

setStart : function(start) {CS[this.k].start =start;},

incStart : function(start) {CS[this.k].start++;},

setLastIndex : function() {CS[this.k].lastIndex =CS[this.k].end;},

start : function(start) {return CS[this.k].start;},

setIndex : function(index) {CS[this.k].index =index;},

setEnd : function(end) { CS[this.k].end =end;},

end : function() {return CS[this.k].end;},

node : function() {return CS[this.k].node;},

setType : function(type) { CS[this.k].type =type;},

type : function() {return CS[this.k].type;},

text : function() { return CS[this.k.node.textContent];},

slice : function(start,end){

var s,e;

var i = this.k;

if(arguments.length > 0) s = start; else s = CS[this.k].start;

if(arguments.length > 1) e = end; else e =CS[this.k].end;

return CS[this.k].node.textContent.slice(s,e);

twoChars : function(){

var s = CS[this.k].end; // aftr the newline

return CS[this.k].node.textContent.slice(s,s+2);

}

// Initialize the assembler

function initHal() {

tokend.lastIndex =0;

newline.lastIndex =0;//

clearLog();

resetRpn();

//resetWaits();

return OK;

}

function endOfLine() {

newline.lastIndex = tokend.lastIndex;

newline.exec(cc.node().textContent)

if(newline.lastIndex !== 0) {

// Do not allow parser to chew past arguments

tokend.lastIndex = newline.lastIndex;

return OK;

}else return DONE;

}

// everything needed to process textContent

function newContext(node) {

var p = new Object(CONTEXT);

var x =0;

p.lastIndex = 0;

p.line = 1;

p.start = 0;

p.end = 0;

p.type = DISCARD;

p.node = node;

p.name = node.name;

cc.push(p);

// Newline required here

if(cc.indexChar(0) != '\n') return syntaxError('No starting newline');

strLog('New Context ' + node.name);

return endOfLine();

}

function execLines(){

var result=OK;

var count = 0;

while( (result == OK) || (result == WAIT)) {

count++;

result = firstColumn();

if(result==DONE)

return strPrependLog('\nSource done');

}

syntaxAlert('Assembly error ' + result)

}

function ExecSource() {

node = findText('source')

if(node == null) return syntaxError('Nosource');

initHal();

console.log('CC ' +cc.k)

newContext(node);

execLines();

return OK;

}

function listToken() {

var result = nextToken();

if(result == OK)

tokenText();

return result;

}

function listTokens() {

var result=OK;

var str;

clearLog()

strPrependLog('\n...All tokens....');

cc.setStart(0);

cc.setEnd(1);

tokstart.lastIndex =0;

tokend.lastIndex = 0;

newline.lastIndex =0;

//endOfLine(); // to starting line

do result = listToken(); while(result == OK);

strPrependLog('End of source');

return result;

}

function DebugStep(as) {

var result;

switch(as) {

case TEST:

e = findText('source');

if(e.hidden == 1) delete e.hidden;

else e.hidden = 1;

break;

case TOKEN :

if(listToken() == DONE) InitHal();

break;+tokend.lastIndex

case LINE :

if(nextToken() != DONE);

result = firstColumn();

//console.log('col end |'+cc.slice()+'|'+tokend.lastIndex);

break;

case INDEX:

break;

case INIT:

var node = findText('source');

if(node == null) console.log('Nosource');

initHal();

newContext(node);

break;

}

// forward reference array

var waits = new Array();

function waitService(index) {

var n = waits.length;

console.log('Wait service len ' + n)

for(let i = 0; i < n;i++)

if(waits[i].index == index) {

cc.push(waits[i]);

console.log('Service '+tokenText())

waits.splice(i,1);

argsProcess();

CS.pop();

}

return OK;

}

function waitRequest(context,index) {

console.log('Wait request');

context.index =index;

waits.push(context);

return WAIT;

}

function opProcess(token){}

function funProcess(token) {

var result = 0;

var textNodes = document.getElementsByClassName('invisible');

var el = findName(textNodes,optable[token.index].str);

initHal();

result = newContext(el);

while(result != DONE) {

result = firstColumn();

}

return OK;

}

// Global and local regx

const newline = RegExp(/\n/ ,'g'); // a regx to find end of line

const tokstart = RegExp(/\S|\n/, 'g');

const semi = RegExp(/;/,'g');

const tokend = RegExp(/\W/,'g'); // no alpha or numeric

const quote = RegExp(/\"/,'g'); // open literal

const bracket = RegExp(/\{\}/,'g'); // open literal

// local operators

const alum = RegExp(/\w/); // alpha or numeric

const space = RegExp(/\t| /); // valid separators

const nospace = RegExp(/\S/); // drk

const operator = RegExp(/[;\*\\\+\-#\(\)]/);

const white = RegExp(/\s/); //not words

const primes = [

{ str : 'register', expr : RegExp(/r\d/), type : REG},

{ str : 'alpha', expr : RegExp(/[a-zA-Z]/),type : ALPHA},

{ str : 'number', expr : RegExp(/[0-9]/),type : NUM},

{ str : 'sysop', expr : RegExp(/#/),type : SYSOP},

{ str : 'muliply', expr : RegExp(/[\*]/),type : MUL},

{ str : 'divide', expr: RegExp(/[\\]/),type : DIV},

{ str : 'add', expr : RegExp(/[\+]/),type : ADD},

{ str : 'sub', expr : RegExp(/[\-]/),type : SUB},

{ str : 'comma', expr : RegExp(/\,/),type : COMMA},

{ str : 'semi', expr : RegExp(/;/),type : SEMI},

{ str : 'left', expr : RegExp(/\(/),type : LP},

{ str : 'right', expr : RegExp(/\)/),type : RP},

{ str : 'newline', expr : RegExp(/\n/),type : NEWLINE}

]

const primeLength = primes.length;

function regtest(regx,str){

let x = regx.test(str);

return x;

}

// errors

function syntaxAlert(msg) {

var l;

alert(msg +' type '+cc.type()+' '+cc.start()+' '+cc.end()+' '+cc.slice()+'\n')

return OK;

}

// errors

function syntaxError(msg) {

var l;

strPrependLog(msg +' '+cc.start()+' '+cc.end()+' '+cc.slice()+'\n')

return ERROR;

}

function typeGet(index,str){

let x = primes[index].expr.test(str);

if(x) return primes[index].type;

else return ERROR;

}

function updateToken(index) {

var type,ch;

ch = cc.indexChar(index);

for(i=0;i < primeLength;i++)

if( (type = typeGet(i,ch)) > -1){

cc.setType(type);

return cc.type();

}

return syntaxError('No type |'+ch+'|' );

}

//args process found a quote character

function literal() {

cc.setStart(cc.end());

quote.lastIndex = cc.start();

quote.exec(cc.text());

if( (quote.lastIndex ==0) || (quote.lastIndex >= newlne.lastIndex) )

return syntaxError('missing quote');

cc.setEnd(quote.lastIndex-1);

rpn();

return OK;

}

// The function sets the start and end indices

// for a token of three classes:

// numeric, alphanumeric and single char operators

// New lin3 is a valid operator, right associated.

// It changes assmbler state based on the next two chars.

function nextToken() {

SRC= cc.node();

if(SRC ===null) syntaxError('No source');

var ch,index,result;

tokstart.lastIndex = tokend.lastIndex-1; // get end of last token

if(regtest(space,SRC.textContent.charAt(tokstart.lastIndex) )){

tokstart.exec(cc.node().textContent)

if(tokstart.lastIndex == 0) return DONE;

} else tokstart.lastIndex++;

updateToken(tokstart.lastIndex-1);

tokend.lastIndex = tokstart.lastIndex; // get start of current token

if(regtest(alum,SRC.textContent.charAt(tokend.lastIndex-1)) ){

tokend.exec(SRC.textContent);

if(tokend.lastIndex == 0) return syntaxError('No line terminator')

} else tokend.lastIndex++; //must be a single char

cc.setStart(tokstart.lastIndex-1);

cc.setEnd(tokend.lastIndex-1);

return OK;

}

//First argument always an opcode

// handle opcode and multiple arguments

// symbol argument, literals, end of line

function argsProcess() {

opContext = cc.get(); // restart here on forward reference

if(nextToken() == DONE) return DONE;

if(cc.type() == NEWLINE) { //blank line

return OK;

}

// opcode required here

index = findSym(cc.slice());

if( index< 0) return syntaxError('\nNo op ' + cc.slice())

rpn(); // process opcode

let type = cc.type();

while((type != SEMI) && (type != NEWLINE )) {

if(nextToken() == ERROR) return syntaxError('Or a bug'); // line done

type = cc.type();

if(type == QUOTE) { // literals shipped as is.

literal(); // one literal per line

break;

} else if(type == ALPHA)

if(symbol(opContext ) == WAIT ) {

return endOfLine(); // fludh to end of line

}

// ready to activate rpn)

if(type > OP )

rpn();

}

return OK;

//endOfLine();

}

//the currnt token is newline

// which triggers first column call

function firstColumn() {

var result;

if(cc.type() != NEWLINE) return syntaxError('Col bug');

var twochars = cc.twoChars();

// arrive here once per line and never more

cc.incLine(); // Every context keeps its own line counter

if(white.test(twochars)) // if no column one work

return argsProcess(); // pass it on

console.log('after args |'+cc.slice()+'|'+tokend.lastIndex);

nextToken(); // there is column one work

if(cc.type() == SYSOP) {

if(nextToken() < 0)return syntaxError('No sysop ');

let index = findMacro(cc.slice());

if(index < 0)

return syntaxError('Undefined sysop ');

else {

//console.log('Sysop '+cc.slice())

return mactable[index].handle();

}

// source defines symbol

else if(cc.type() == ALPHA) {

// we just set the symbol to the current lineZ

symbol();

return argsProcess();

}

else

return syntaxError('Illegal char ');

}

if ("serial" in navigator) {

// The Web Serial API is supported.

}

var port;

async function getport() {

console.log('get port')

port = await navigator.serial.requestPort();

if(port)

var info = port.getInfo();

else console.log('no port')

console.log('info '+ info)

}

// Get all serial ports the user has previously granted the website access to.

async function getports() {

ports = await navigator.serial.getPorts();

console.log('Get ports ' + ports.length)

console.log(ports[0])

}

async function closeport() {

await port.close();

}

// Filter on devices with te Arduino Uno USB Vendor/Product IDs.

const filters = [

{ usbVendorId: 0x2341, usbProductId: 0x0043 },

{ usbVendorId: 0x2341, usbProductId: 0x0001 }

];

// Prompt user to select an Arduino Uno device.

async function getPort() {

port = await navigator.serial.requestPort([filters]);

if(port)

var info = port.getInfo();

}

// Wait for the serial port to open.

async function openport() {

await port.open({ baudRate: 9600 });

}

//After the serial port connection is established, the readable and writable properties //from the SerialPort object return a ReadableStream and a WritableStream. Those will be //used to receive data from and send data to the serial device. Both use Uint8Array //instances for data transfer.

//When new data arrives from the serial device, port.readable.getReader().read() returns //two properties asynchronously: the value and a done boolean. If done is true, the serial //port has been closed or there is no more data coming in. Calling //port.readable.getReader() creates a reader and locks readable to it. While readable is //locked, the serial port can't be closed.

async function readport() {

reader = port.readable.getReader();

console.log('read '+ reader);

// Listen to data coming from the serial device.

while (true) {

var { value, done } = await reader.read();

if (done)

{

console.log('Value ' + value.length)

// Allow the serial port to be closed later.

reader.releaseLock();

break;

}

// value is a Uint8Array.

}

console.log('Done '+value.length);

}

function freeport(){

if(reader)

reader.releaseLock();

if(writer)

writr.relaseLock();

}

async function writeport() {

var writer = port.writable.getWriter();

var data = new Uint8Array([104, 101, 108, 108, 111,010,013]); // hello

await writer.write(data);

console.log('Written ');

// Allow the serial port to be closed later.

writer.releaseLock();

}

function getreader() {

const textDecoder = new TextDecoderStream();

const readableStreamClosed = port.readable.pipeTo(textDecoder.writable);

reader = textDecoder.readable.getReader();

}

// menu

var iCount=-1;

var current;

var selected = document.getElementById("selectedItem")

var menuItems = document.getElementById('simpleMenu').childNodes

current= menuItems[0];

parent=current.parentNode;

function radioButtons(name,items){

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

if(items[i].name == name)

items[i].style.backgroundColor = "orange";

else

items[i].style.backgroundColor = "navy";

}

// set up the radio buttons

function setRadioEvent(element) {

element.addEventListener('click', () => {

element.style.backgroundColor = 'red'

let items=element.parentNode.children;

radioButtons(element.name,items);

//for(i=0;i<items.length;i++)

// if(items[i].name != element.name)

// items[i].style.backgroundColor = "blue"

});

}

function setConnects(str) {

var element = document.getElementById(str)

var items = element.children

for(i=0; i < items.length;i++) setRadioEvent(items[i]);

}

button = document.getElementById("menuNext")

button.addEventListener('click', () => {

do{

iCount++

if(menuItems.length == iCount) iCount = 0;

current = menuItems[iCount];

if(current.nodeName=="UL")

selected.textContent= current.className;

else if(current.nodeName=="LI")

selected.textContent= current.textContent;

} while(current.nodeType !=1)

});

button = document.getElementById("menuDown")

button.addEventListener('click', () => {

if(current.nodeName == "UL") {

parent=current;

menuItems = parent.childNodes;

current = menuItems[0];

iCount=-1

if(current.nodeName=="UL")

selected.textContent= current.className

}

else {

selected.textContent= current.textContent;

current.onclick()

}

});

button = document.getElementById("menuUp")

button.addEventListener('click', () => {

if(parent.nodeName =="UL") {

current = parent

parent = current.parentNode;

menuItems = parent.childNodes;

iCount=-1

selected.textContent= current.className

} else

console.log('To level')

});

setConnects('connectTop')

setConnects('connectBottom')

// resolve

objectCode = new Uint8Array(100);

arg = new Array();

oper = new Array();

function resetRpn() {

arg.length = 0;

oper.length = 0;}

function operLast() {

return oper[oper.length-1]}

function argLast() {

return arg[arg.length-1]}

function OpProcess(index) {

var result = 0;

switch(optable[index].type) {

case MODULE:

var str = optable[index].str;

var node = findTextarea(str);

newContext(node);

execLines();

cc.pop();

break

case MACRO:

var state = nextToken();

while(state != DONE)

executeLine();

break

case END:

return DONE;

break;

}

if(index < builtinsLength) processOpcode(index)

else { // must be a module

var str = optable[index].str;

var node = findText(str);

newContext(node);

execLines();

CS.pop();

}

return OK;

}

function flushLiteral(addr) {

start = cc.start();

end = start + cc.length;

node=cc.node();

while(start < end) {

objectCode[addr] = node.textContent[start];

start++;addr++;

}

function flushNum(n,addr) {

var list = String('0123456789abcdef')

var out = String(' ');

bit = 1;

while(bit < n) {

var r = 0;

var t = 1;

for(j=0;j < 4;j++) { // for each bit

if(n & bit)

r += t;

t *=2;

bit *=2;

}

out = list[r] +out;

}

for(j=0;j < out.length;j++){

objectCode[addr] = out[j];

addr++;

}

return addr;

}

// numbers or operators

function flushExpression(arg,addr) {

var len = expr.length;

var x;

var y;

var z;

console.log('flush');

while(arg.length>2) { // there should remain one resolved literal

x = arg.pop();

y = arg.pop();

z = 0;

switch(lastOper.type) {

case MUL:

z = (x*y);

break;

case DIV:

z =(x/y);

break;

case ADD:

z =(x+y);

break;

case SUB:

z =(x-y)

break;

}

arg.push(z);

arg.splice(0,1)

}

flushNum(z);

return OK;

}

// make the source line shunted

// evaluate arg expressions

// separat arguments

var addr=0;

function rpn()

{

strLog('\nrpn ' + cc.slice());

var type = cc.type();

switch(type) {

case LITERAL:

addr=flushLiteral(addr);

break;

case VAL:

arg.push(cc.index());

break;

case NUM:

x = JSON.parse(cc.slice());

arg.push(x);

break;

case RP:

while(oper.length > 0 )

if (type = lastOper.type != LP)

arg.push(oper.pop().type)

else

addr = flushExpression(addr);

if(oper.length == 0)return syntaxError('no left parenth')

oper.pop();

break;

case SEMI: // The last argument

if(oper.length==0) return(syntaxError('Semi-colon mismatch'));

addr = flushExpression(addr); // one last arg

type = oper.pop().type;

if((type != OP) && (type != MACRO))

return(sytaxError('Line not closed'));

// call the OP or MACRO process

processOpcode(cc.index());

break;

case COMMA:

addr = flushExpression(addr);

break

case ALPHA:

case SYSOP:

return syntaxError('Not prime');

break;

default:

while( (oper.length != 0) && (operLast.type > type) )

arg.push(oper.pop().type);

}

return OK;

}

</script>

</html>

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