code cleanup
This commit is contained in:
Dennis Brown
parent
824cd8c56b
commit
e4f1f9f03f
370
app/assembler.js
370
app/assembler.js
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@ -33,7 +33,7 @@ function SimulatorWidget(node) {
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$node.find('.runButton').click(simulator.runBinary);
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$node.find('.runButton').click(simulator.stopDebugger);
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$node.find('.resetButton').click(simulator.reset);
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$node.find('.hexdumpButton').click(assembler.hexdump);
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$node.find('.hexdumpButton').click(assembler.hexdump).trigger('keydown', {which: 65});
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$node.find('.disassembleButton').click(assembler.disassemble);
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$node.find('.debug').on('click', function () {
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$(this).toggleClass('active');
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@ -49,7 +49,7 @@ function SimulatorWidget(node) {
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$node.find('.monitoring').on('click', function () {
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$(this).toggleClass('active');
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if($(this).hasClass('active')) {
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}
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ui.toggleMonitor();
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simulator.toggleMonitor();
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@ -177,10 +177,10 @@ function SimulatorWidget(node) {
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// Insert tab at caret position (instead of losing focus)
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var caretStart = this.selectionStart,
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caretEnd = this.selectionEnd,
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currentValue = this.value;
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caretEnd = this.selectionEnd,
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currentValue = this.value;
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this.value = currentValue.substring(0, caretStart) + "\t" + currentValue.substring(caretEnd);
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this.value = currentValue.substring(0, caretStart) + '\t' + currentValue.substring(caretEnd);
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// Move cursor forwards one (after tab)
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this.selectionStart = this.selectionEnd = caretStart + 1;
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@ -204,10 +204,10 @@ function SimulatorWidget(node) {
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function Display() {
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var displayArray = [];
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var palette = [
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"#000000", "#ffffff", "#880000", "#aaffee",
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"#cc44cc", "#00cc55", "#0000aa", "#eeee77",
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"#dd8855", "#664400", "#ff7777", "#333333",
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"#777777", "#aaff66", "#0088ff", "#bbbbbb"
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'#000000', '#ffffff', '#880000', '#aaffee',
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'#cc44cc', '#00cc55', '#0000aa', '#eeee77',
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'#dd8855', '#664400', '#ff7777', '#333333',
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'#777777', '#aaff66', '#0088ff', '#bbbbbb'
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];
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var ctx;
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var width;
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@ -226,7 +226,7 @@ function SimulatorWidget(node) {
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}
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function reset() {
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ctx.fillStyle = "black";
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ctx.fillStyle = 'black';
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ctx.fillRect(0, 0, width, height);
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}
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@ -279,14 +279,14 @@ function SimulatorWidget(node) {
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for (var x = 0; x < length; x++) {
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if ((x & 15) === 0) {
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if (x > 0) { html += "\n"; }
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if (x > 0) { html += '\n'; }
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n = (start + x);
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html += num2hex(((n >> 8) & 0xff));
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html += num2hex((n & 0xff));
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html += ": ";
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html += ': ';
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}
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html += num2hex(memory.get(start + x));
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html += " ";
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html += ' ';
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}
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return html;
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}
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@ -871,7 +871,7 @@ function SimulatorWidget(node) {
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i58: function () {
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regP &= ~0x04;
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throw new Error("Interrupts not implemented");
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throw new Error('Interrupts not implemented');
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//CLI
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},
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@ -1006,7 +1006,7 @@ function SimulatorWidget(node) {
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i78: function () {
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regP |= 0x04;
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throw new Error("Interrupts not implemented");
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throw new Error('Interrupts not implemented');
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//SEI
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},
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@ -1499,7 +1499,7 @@ function SimulatorWidget(node) {
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},
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ierr: function () {
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message("Address $" + addr2hex(regPC) + " - unknown opcode");
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message('Address $' + addr2hex(regPC) + ' - unknown opcode');
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codeRunning = false;
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}
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};
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@ -1509,7 +1509,7 @@ function SimulatorWidget(node) {
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regSP--;
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if (regSP < 0) {
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regSP &= 0xff;
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message("6502 Stack filled! Wrapping...");
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message('6502 Stack filled! Wrapping...');
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}
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}
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@ -1518,7 +1518,7 @@ function SimulatorWidget(node) {
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regSP++;
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if (regSP >= 0x100) {
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regSP &= 0xff;
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message("6502 Stack emptied! Wrapping...");
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message('6502 Stack emptied! Wrapping...');
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}
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value = memory.get(regSP + 0x100);
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return value;
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@ -1582,7 +1582,7 @@ function SimulatorWidget(node) {
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if ((regPC === 0) || (!codeRunning && !debugging)) {
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stop();
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message("Program end at PC=$" + addr2hex(regPC - 1));
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message('Program end at PC=$' + addr2hex(regPC - 1));
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ui.stop();
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}
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}
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@ -1611,10 +1611,10 @@ function SimulatorWidget(node) {
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function handleMonitorRangeChange() {
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var $start = $node.find('.start'),
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$length = $node.find('.length'),
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start = parseInt($start.val(), 16),
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length = parseInt($length.val(), 16),
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end = start + length - 1;
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$length = $node.find('.length'),
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start = parseInt($start.val(), 16),
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length = parseInt($length.val(), 16),
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end = start + length - 1;
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$start.removeClass('monitor-invalid');
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$length.removeClass('monitor-invalid');
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@ -1632,15 +1632,15 @@ function SimulatorWidget(node) {
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// Execute one instruction and print values
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function debugExec() {
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//if (codeRunning) {
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execute(true);
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execute(true);
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//}
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updateDebugInfo();
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}
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function updateDebugInfo() {
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var html = "A=$" + num2hex(regA) + " X=$" + num2hex(regX) + " Y=$" + num2hex(regY) +
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" SP=$" + num2hex(regSP) + " PC=$" + addr2hex(regPC) + " NV-BDIZC: ";
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for (var i = 7; i >=0; i--) {
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var html = 'A=$' + num2hex(regA) + ' X=$' + num2hex(regX) + ' Y=$' + num2hex(regY) +
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' SP=$' + num2hex(regSP) + ' PC=$' + addr2hex(regPC) + ' NV-BDIZC: ';
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for (var i = 7; i >= 0; i--) {
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html += regP >> i & 1;
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}
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$node.find('.minidebugger').html(html);
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@ -1649,21 +1649,21 @@ function SimulatorWidget(node) {
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// gotoAddr() - Set PC to address (or address of label)
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function gotoAddr() {
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var inp = prompt("Enter address or label", "");
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var inp = prompt('Enter address or label', '');
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var addr = 0;
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if (labels.find(inp)) {
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addr = labels.getPC(inp);
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} else {
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if (inp.match(/^0x[0-9a-f]{1,4}$/i)) {
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inp = inp.replace(/^0x/, "");
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inp = inp.replace(/^0x/, '');
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addr = parseInt(inp, 16);
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} else if (inp.match(/^\$[0-9a-f]{1,4}$/i)) {
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inp = inp.replace(/^\$/, "");
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inp = inp.replace(/^\$/, '');
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addr = parseInt(inp, 16);
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}
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}
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if (addr === 0) {
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message("Unable to find/parse given address/label");
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message('Unable to find/parse given address/label');
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} else {
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regPC = addr;
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}
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@ -1698,7 +1698,7 @@ function SimulatorWidget(node) {
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function stop() {
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codeRunning = false;
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clearInterval(executeId);
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message("\nStopped\n");
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message('\nStopped\n');
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}
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function toggleMonitor() {
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@ -1725,7 +1725,7 @@ function SimulatorWidget(node) {
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function indexLines(lines, symbols) {
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for (var i = 0; i < lines.length; i++) {
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if (!indexLine(lines[i], symbols)) {
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message("**Label already defined at line " + (i + 1) + ":** " + lines[i]);
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message('**Label already defined at line ' + (i + 1) + ':** ' + lines[i]);
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return false;
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}
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}
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@ -1735,21 +1735,21 @@ function SimulatorWidget(node) {
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// Extract label if line contains one and calculate position in memory.
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// Return false if label already exists.
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function indexLine(input, symbols) {
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// Figure out how many bytes this instruction takes
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var currentPC = assembler.getCurrentPC();
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assembler.assembleLine(input, 0, symbols); //TODO: find a better way for Labels to have access to assembler
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// Find command or label
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if (input.match(/^\w+:/)) {
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var label = input.replace(/(^\w+):.*$/, "$1");
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var label = input.replace(/(^\w+):.*$/, '$1');
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if (symbols.lookup(label)) {
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message("**Label " + label + "is already used as a symbol; please rename one of them**");
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message('**Label ' + label + 'is already used as a symbol; please rename one of them**');
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return false;
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}
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return push(label + "|" + currentPC);
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return push(label + '|' + currentPC);
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}
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return true;
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}
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@ -1759,7 +1759,7 @@ function SimulatorWidget(node) {
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if (find(name)) {
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return false;
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}
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labelIndex.push(name + "|");
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labelIndex.push(name + '|');
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return true;
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}
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@ -1767,7 +1767,7 @@ function SimulatorWidget(node) {
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function find(name) {
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var nameAndAddr;
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for (var i = 0; i < labelIndex.length; i++) {
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nameAndAddr = labelIndex[i].split("|");
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nameAndAddr = labelIndex[i].split('|');
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if (name === nameAndAddr[0]) {
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return true;
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}
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@ -1779,9 +1779,9 @@ function SimulatorWidget(node) {
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function setPC(name, addr) {
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var nameAndAddr;
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for (var i = 0; i < labelIndex.length; i++) {
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nameAndAddr = labelIndex[i].split("|");
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nameAndAddr = labelIndex[i].split('|');
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if (name === nameAndAddr[0]) {
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labelIndex[i] = name + "|" + addr;
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labelIndex[i] = name + '|' + addr;
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return true;
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}
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}
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@ -1792,7 +1792,7 @@ function SimulatorWidget(node) {
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function getPC(name) {
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var nameAndAddr;
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for (var i = 0; i < labelIndex.length; i++) {
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nameAndAddr = labelIndex[i].split("|");
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nameAndAddr = labelIndex[i].split('|');
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if (name === nameAndAddr[0]) {
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return (nameAndAddr[1]);
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}
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@ -1801,11 +1801,11 @@ function SimulatorWidget(node) {
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}
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function displayMessage() {
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var str = "Found " + labelIndex.length + " label";
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var str = 'Found ' + labelIndex.length + ' label';
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if (labelIndex.length !== 1) {
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str += "s";
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str += 's';
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}
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message(str + ".");
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message(str + '.');
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}
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function reset() {
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@ -1830,86 +1830,86 @@ function SimulatorWidget(node) {
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var Opcodes = [
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/* Name, Imm, ZP, ZPX, ZPY, ABS, ABSX, ABSY, IND, INDX, INDY, SNGL, BRA */
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["ADC", 0x69, 0x65, 0x75, null, 0x6d, 0x7d, 0x79, null, 0x61, 0x71, null, null],
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["AND", 0x29, 0x25, 0x35, null, 0x2d, 0x3d, 0x39, null, 0x21, 0x31, null, null],
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["ASL", null, 0x06, 0x16, null, 0x0e, 0x1e, null, null, null, null, 0x0a, null],
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["BIT", null, 0x24, null, null, 0x2c, null, null, null, null, null, null, null],
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["BPL", null, null, null, null, null, null, null, null, null, null, null, 0x10],
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["BMI", null, null, null, null, null, null, null, null, null, null, null, 0x30],
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["BVC", null, null, null, null, null, null, null, null, null, null, null, 0x50],
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["BVS", null, null, null, null, null, null, null, null, null, null, null, 0x70],
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["BCC", null, null, null, null, null, null, null, null, null, null, null, 0x90],
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["BCS", null, null, null, null, null, null, null, null, null, null, null, 0xb0],
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["BNE", null, null, null, null, null, null, null, null, null, null, null, 0xd0],
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["BEQ", null, null, null, null, null, null, null, null, null, null, null, 0xf0],
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["BRK", null, null, null, null, null, null, null, null, null, null, 0x00, null],
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["CMP", 0xc9, 0xc5, 0xd5, null, 0xcd, 0xdd, 0xd9, null, 0xc1, 0xd1, null, null],
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["CPX", 0xe0, 0xe4, null, null, 0xec, null, null, null, null, null, null, null],
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["CPY", 0xc0, 0xc4, null, null, 0xcc, null, null, null, null, null, null, null],
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["DEC", null, 0xc6, 0xd6, null, 0xce, 0xde, null, null, null, null, null, null],
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["EOR", 0x49, 0x45, 0x55, null, 0x4d, 0x5d, 0x59, null, 0x41, 0x51, null, null],
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["CLC", null, null, null, null, null, null, null, null, null, null, 0x18, null],
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["SEC", null, null, null, null, null, null, null, null, null, null, 0x38, null],
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["CLI", null, null, null, null, null, null, null, null, null, null, 0x58, null],
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["SEI", null, null, null, null, null, null, null, null, null, null, 0x78, null],
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["CLV", null, null, null, null, null, null, null, null, null, null, 0xb8, null],
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["CLD", null, null, null, null, null, null, null, null, null, null, 0xd8, null],
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["SED", null, null, null, null, null, null, null, null, null, null, 0xf8, null],
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["INC", null, 0xe6, 0xf6, null, 0xee, 0xfe, null, null, null, null, null, null],
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["JMP", null, null, null, null, 0x4c, null, null, 0x6c, null, null, null, null],
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["JSR", null, null, null, null, 0x20, null, null, null, null, null, null, null],
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["LDA", 0xa9, 0xa5, 0xb5, null, 0xad, 0xbd, 0xb9, null, 0xa1, 0xb1, null, null],
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["LDX", 0xa2, 0xa6, null, 0xb6, 0xae, null, 0xbe, null, null, null, null, null],
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["LDY", 0xa0, 0xa4, 0xb4, null, 0xac, 0xbc, null, null, null, null, null, null],
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["LSR", null, 0x46, 0x56, null, 0x4e, 0x5e, null, null, null, null, 0x4a, null],
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["NOP", null, null, null, null, null, null, null, null, null, null, 0xea, null],
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["ORA", 0x09, 0x05, 0x15, null, 0x0d, 0x1d, 0x19, null, 0x01, 0x11, null, null],
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["TAX", null, null, null, null, null, null, null, null, null, null, 0xaa, null],
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["TXA", null, null, null, null, null, null, null, null, null, null, 0x8a, null],
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["DEX", null, null, null, null, null, null, null, null, null, null, 0xca, null],
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["INX", null, null, null, null, null, null, null, null, null, null, 0xe8, null],
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["TAY", null, null, null, null, null, null, null, null, null, null, 0xa8, null],
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["TYA", null, null, null, null, null, null, null, null, null, null, 0x98, null],
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["DEY", null, null, null, null, null, null, null, null, null, null, 0x88, null],
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["INY", null, null, null, null, null, null, null, null, null, null, 0xc8, null],
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["ROR", null, 0x66, 0x76, null, 0x6e, 0x7e, null, null, null, null, 0x6a, null],
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["ROL", null, 0x26, 0x36, null, 0x2e, 0x3e, null, null, null, null, 0x2a, null],
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["RTI", null, null, null, null, null, null, null, null, null, null, 0x40, null],
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["RTS", null, null, null, null, null, null, null, null, null, null, 0x60, null],
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["SBC", 0xe9, 0xe5, 0xf5, null, 0xed, 0xfd, 0xf9, null, 0xe1, 0xf1, null, null],
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["STA", null, 0x85, 0x95, null, 0x8d, 0x9d, 0x99, null, 0x81, 0x91, null, null],
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["TXS", null, null, null, null, null, null, null, null, null, null, 0x9a, null],
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["TSX", null, null, null, null, null, null, null, null, null, null, 0xba, null],
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["PHA", null, null, null, null, null, null, null, null, null, null, 0x48, null],
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["PLA", null, null, null, null, null, null, null, null, null, null, 0x68, null],
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["PHP", null, null, null, null, null, null, null, null, null, null, 0x08, null],
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["PLP", null, null, null, null, null, null, null, null, null, null, 0x28, null],
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["STX", null, 0x86, null, 0x96, 0x8e, null, null, null, null, null, null, null],
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["STY", null, 0x84, 0x94, null, 0x8c, null, null, null, null, null, null, null],
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["WDM", 0x42, 0x42, null, null, null, null, null, null, null, null, null, null],
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["---", null, null, null, null, null, null, null, null, null, null, null, null]
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['ADC', 0x69, 0x65, 0x75, null, 0x6d, 0x7d, 0x79, null, 0x61, 0x71, null, null],
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['AND', 0x29, 0x25, 0x35, null, 0x2d, 0x3d, 0x39, null, 0x21, 0x31, null, null],
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['ASL', null, 0x06, 0x16, null, 0x0e, 0x1e, null, null, null, null, 0x0a, null],
|
||||
['BIT', null, 0x24, null, null, 0x2c, null, null, null, null, null, null, null],
|
||||
['BPL', null, null, null, null, null, null, null, null, null, null, null, 0x10],
|
||||
['BMI', null, null, null, null, null, null, null, null, null, null, null, 0x30],
|
||||
['BVC', null, null, null, null, null, null, null, null, null, null, null, 0x50],
|
||||
['BVS', null, null, null, null, null, null, null, null, null, null, null, 0x70],
|
||||
['BCC', null, null, null, null, null, null, null, null, null, null, null, 0x90],
|
||||
['BCS', null, null, null, null, null, null, null, null, null, null, null, 0xb0],
|
||||
['BNE', null, null, null, null, null, null, null, null, null, null, null, 0xd0],
|
||||
['BEQ', null, null, null, null, null, null, null, null, null, null, null, 0xf0],
|
||||
['BRK', null, null, null, null, null, null, null, null, null, null, 0x00, null],
|
||||
['CMP', 0xc9, 0xc5, 0xd5, null, 0xcd, 0xdd, 0xd9, null, 0xc1, 0xd1, null, null],
|
||||
['CPX', 0xe0, 0xe4, null, null, 0xec, null, null, null, null, null, null, null],
|
||||
['CPY', 0xc0, 0xc4, null, null, 0xcc, null, null, null, null, null, null, null],
|
||||
['DEC', null, 0xc6, 0xd6, null, 0xce, 0xde, null, null, null, null, null, null],
|
||||
['EOR', 0x49, 0x45, 0x55, null, 0x4d, 0x5d, 0x59, null, 0x41, 0x51, null, null],
|
||||
['CLC', null, null, null, null, null, null, null, null, null, null, 0x18, null],
|
||||
['SEC', null, null, null, null, null, null, null, null, null, null, 0x38, null],
|
||||
['CLI', null, null, null, null, null, null, null, null, null, null, 0x58, null],
|
||||
['SEI', null, null, null, null, null, null, null, null, null, null, 0x78, null],
|
||||
['CLV', null, null, null, null, null, null, null, null, null, null, 0xb8, null],
|
||||
['CLD', null, null, null, null, null, null, null, null, null, null, 0xd8, null],
|
||||
['SED', null, null, null, null, null, null, null, null, null, null, 0xf8, null],
|
||||
['INC', null, 0xe6, 0xf6, null, 0xee, 0xfe, null, null, null, null, null, null],
|
||||
['JMP', null, null, null, null, 0x4c, null, null, 0x6c, null, null, null, null],
|
||||
['JSR', null, null, null, null, 0x20, null, null, null, null, null, null, null],
|
||||
['LDA', 0xa9, 0xa5, 0xb5, null, 0xad, 0xbd, 0xb9, null, 0xa1, 0xb1, null, null],
|
||||
['LDX', 0xa2, 0xa6, null, 0xb6, 0xae, null, 0xbe, null, null, null, null, null],
|
||||
['LDY', 0xa0, 0xa4, 0xb4, null, 0xac, 0xbc, null, null, null, null, null, null],
|
||||
['LSR', null, 0x46, 0x56, null, 0x4e, 0x5e, null, null, null, null, 0x4a, null],
|
||||
['NOP', null, null, null, null, null, null, null, null, null, null, 0xea, null],
|
||||
['ORA', 0x09, 0x05, 0x15, null, 0x0d, 0x1d, 0x19, null, 0x01, 0x11, null, null],
|
||||
['TAX', null, null, null, null, null, null, null, null, null, null, 0xaa, null],
|
||||
['TXA', null, null, null, null, null, null, null, null, null, null, 0x8a, null],
|
||||
['DEX', null, null, null, null, null, null, null, null, null, null, 0xca, null],
|
||||
['INX', null, null, null, null, null, null, null, null, null, null, 0xe8, null],
|
||||
['TAY', null, null, null, null, null, null, null, null, null, null, 0xa8, null],
|
||||
['TYA', null, null, null, null, null, null, null, null, null, null, 0x98, null],
|
||||
['DEY', null, null, null, null, null, null, null, null, null, null, 0x88, null],
|
||||
['INY', null, null, null, null, null, null, null, null, null, null, 0xc8, null],
|
||||
['ROR', null, 0x66, 0x76, null, 0x6e, 0x7e, null, null, null, null, 0x6a, null],
|
||||
['ROL', null, 0x26, 0x36, null, 0x2e, 0x3e, null, null, null, null, 0x2a, null],
|
||||
['RTI', null, null, null, null, null, null, null, null, null, null, 0x40, null],
|
||||
['RTS', null, null, null, null, null, null, null, null, null, null, 0x60, null],
|
||||
['SBC', 0xe9, 0xe5, 0xf5, null, 0xed, 0xfd, 0xf9, null, 0xe1, 0xf1, null, null],
|
||||
['STA', null, 0x85, 0x95, null, 0x8d, 0x9d, 0x99, null, 0x81, 0x91, null, null],
|
||||
['TXS', null, null, null, null, null, null, null, null, null, null, 0x9a, null],
|
||||
['TSX', null, null, null, null, null, null, null, null, null, null, 0xba, null],
|
||||
['PHA', null, null, null, null, null, null, null, null, null, null, 0x48, null],
|
||||
['PLA', null, null, null, null, null, null, null, null, null, null, 0x68, null],
|
||||
['PHP', null, null, null, null, null, null, null, null, null, null, 0x08, null],
|
||||
['PLP', null, null, null, null, null, null, null, null, null, null, 0x28, null],
|
||||
['STX', null, 0x86, null, 0x96, 0x8e, null, null, null, null, null, null, null],
|
||||
['STY', null, 0x84, 0x94, null, 0x8c, null, null, null, null, null, null, null],
|
||||
['WDM', 0x42, 0x42, null, null, null, null, null, null, null, null, null, null],
|
||||
['---', null, null, null, null, null, null, null, null, null, null, null, null]
|
||||
];
|
||||
|
||||
|
||||
// Assembles the code into memory
|
||||
function assembleCode() {
|
||||
var BOOTSTRAP_ADDRESS = 0x600;
|
||||
|
||||
wasOutOfRangeBranch = false;
|
||||
|
||||
|
||||
simulator.reset();
|
||||
labels.reset();
|
||||
defaultCodePC = BOOTSTRAP_ADDRESS;
|
||||
$node.find('.messages code').empty();
|
||||
|
||||
var code = $node.find('.code').val();
|
||||
code += "\n\n";
|
||||
var lines = code.split("\n");
|
||||
code += '\n\n';
|
||||
var lines = code.split('\n');
|
||||
codeAssembledOK = true;
|
||||
|
||||
message("Preprocessing ...");
|
||||
message('Preprocessing ...');
|
||||
var symbols = preprocess(lines);
|
||||
|
||||
message("Indexing labels ...");
|
||||
message('Indexing labels ...');
|
||||
defaultCodePC = BOOTSTRAP_ADDRESS;
|
||||
if (!labels.indexLines(lines, symbols)) {
|
||||
return false;
|
||||
|
|
@ -1917,8 +1917,8 @@ function SimulatorWidget(node) {
|
|||
labels.displayMessage();
|
||||
|
||||
defaultCodePC = BOOTSTRAP_ADDRESS;
|
||||
message("Assembling code ...");
|
||||
|
||||
message('Assembling code ...');
|
||||
|
||||
codeLen = 0;
|
||||
for (var i = 0; i < lines.length; i++) {
|
||||
if (!assembleLine(lines[i], i, symbols)) {
|
||||
|
|
@ -1929,7 +1929,7 @@ function SimulatorWidget(node) {
|
|||
|
||||
if (codeLen === 0) {
|
||||
codeAssembledOK = false;
|
||||
message("No code to run.");
|
||||
message('No code to run.');
|
||||
}
|
||||
|
||||
if (codeAssembledOK) {
|
||||
|
|
@ -1937,10 +1937,10 @@ function SimulatorWidget(node) {
|
|||
memory.set(defaultCodePC, 0x00); //set a null byte at the end of the code
|
||||
} else {
|
||||
|
||||
var str = lines[i].replace("<", "<").replace(">", ">");
|
||||
var str = lines[i].replace('<', '<').replace('>', '>');
|
||||
|
||||
if(!wasOutOfRangeBranch) {
|
||||
message("**Syntax error line " + (i + 1) + ": " + str + "**");
|
||||
message('**Syntax error line ' + (i + 1) + ': ' + str + '**');
|
||||
} else {
|
||||
message('**Out of range branch on line ' + (i + 1) + ' (branches are limited to -128 to +127): ' + str + '**');
|
||||
}
|
||||
|
|
@ -1949,51 +1949,51 @@ function SimulatorWidget(node) {
|
|||
return false;
|
||||
}
|
||||
|
||||
message("Code assembled successfully, " + codeLen + " bytes.");
|
||||
message('Code assembled successfully, ' + codeLen + ' bytes.');
|
||||
return true;
|
||||
}
|
||||
|
||||
// Sanitize input: remove comments and trim leading/trailing whitespace
|
||||
function sanitize(line) {
|
||||
// remove comments
|
||||
var no_comments = line.replace(/^(.*?);.*/, "$1");
|
||||
|
||||
var no_comments = line.replace(/^(.*?);.*/, '$1');
|
||||
|
||||
// trim line
|
||||
return no_comments.replace(/^\s+/, "").replace(/\s+$/, "");
|
||||
return no_comments.replace(/^\s+/, '').replace(/\s+$/, '');
|
||||
}
|
||||
|
||||
function preprocess(lines) {
|
||||
var table = [];
|
||||
var PREFIX = "__"; // Using a prefix avoids clobbering any predefined properties
|
||||
|
||||
var PREFIX = '__'; // Using a prefix avoids clobbering any predefined properties
|
||||
|
||||
function lookup(key) {
|
||||
if (table.hasOwnProperty(PREFIX + key)) return table[PREFIX + key];
|
||||
else return undefined;
|
||||
}
|
||||
|
||||
|
||||
function add(key, value) {
|
||||
var valueAlreadyExists = table.hasOwnProperty(PREFIX + key)
|
||||
if (!valueAlreadyExists) {
|
||||
table[PREFIX + key] = value;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Build the substitution table
|
||||
for (var i = 0; i < lines.length; i++) {
|
||||
lines[i] = sanitize(lines[i]);
|
||||
var match_data = lines[i].match(/^define\s+(\w+)\s+(\S+)/);
|
||||
if (match_data) {
|
||||
add(match_data[1], sanitize(match_data[2]));
|
||||
lines[i] = ""; // We're done with this preprocessor directive, so delete it
|
||||
lines[i] = ''; // We're done with this preprocessor directive, so delete it
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Callers will only need the lookup function
|
||||
return {
|
||||
lookup: lookup
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Assembles one line of code.
|
||||
// Returns true if it assembled successfully, false otherwise.
|
||||
function assembleLine(input, lineno, symbols) {
|
||||
|
|
@ -2001,19 +2001,19 @@ function SimulatorWidget(node) {
|
|||
|
||||
// Find command or label
|
||||
if (input.match(/^\w+:/)) {
|
||||
label = input.replace(/(^\w+):.*$/, "$1");
|
||||
label = input.replace(/(^\w+):.*$/, '$1');
|
||||
if (input.match(/^\w+:[\s]*\w+.*$/)) {
|
||||
input = input.replace(/^\w+:[\s]*(.*)$/, "$1");
|
||||
command = input.replace(/^(\w+).*$/, "$1");
|
||||
input = input.replace(/^\w+:[\s]*(.*)$/, '$1');
|
||||
command = input.replace(/^(\w+).*$/, '$1');
|
||||
} else {
|
||||
command = "";
|
||||
command = '';
|
||||
}
|
||||
} else {
|
||||
command = input.replace(/^(\w+).*$/, "$1");
|
||||
command = input.replace(/^(\w+).*$/, '$1');
|
||||
}
|
||||
|
||||
// Nothing to do for blank lines
|
||||
if (command === "") {
|
||||
if (command === '') {
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -2021,15 +2021,15 @@ function SimulatorWidget(node) {
|
|||
|
||||
if (input.match(/^\*\s*=\s*\$?[0-9a-f]*$/)) {
|
||||
// equ spotted
|
||||
param = input.replace(/^\s*\*\s*=\s*/, "");
|
||||
if (param[0] === "$") {
|
||||
param = param.replace(/^\$/, "");
|
||||
param = input.replace(/^\s*\*\s*=\s*/, '');
|
||||
if (param[0] === '$') {
|
||||
param = param.replace(/^\$/, '');
|
||||
addr = parseInt(param, 16);
|
||||
} else {
|
||||
addr = parseInt(param, 10);
|
||||
}
|
||||
if ((addr < 0) || (addr > 0xffff)) {
|
||||
message("Unable to relocate code outside 64k memory");
|
||||
message('Unable to relocate code outside 64k memory');
|
||||
return false;
|
||||
}
|
||||
defaultCodePC = addr;
|
||||
|
|
@ -2037,16 +2037,16 @@ function SimulatorWidget(node) {
|
|||
}
|
||||
|
||||
if (input.match(/^\w+\s+.*?$/)) {
|
||||
param = input.replace(/^\w+\s+(.*?)/, "$1");
|
||||
param = input.replace(/^\w+\s+(.*?)/, '$1');
|
||||
} else if (input.match(/^\w+$/)) {
|
||||
param = "";
|
||||
param = '';
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
|
||||
param = param.replace(/[ ]/g, "");
|
||||
param = param.replace(/[ ]/g, '');
|
||||
|
||||
if (command === "DCB") {
|
||||
if (command === 'DCB') {
|
||||
return DCB(param);
|
||||
}
|
||||
for (var o = 0; o < Opcodes.length; o++) {
|
||||
|
|
@ -2065,22 +2065,22 @@ function SimulatorWidget(node) {
|
|||
if (checkBranch(param, Opcodes[o][12])) { return true; }
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return false; // Unknown syntax
|
||||
}
|
||||
|
||||
function DCB(param) {
|
||||
var values, number, str, ch;
|
||||
values = param.split(",");
|
||||
values = param.split(',');
|
||||
if (values.length === 0) { return false; }
|
||||
for (var v = 0; v < values.length; v++) {
|
||||
str = values[v];
|
||||
if (str) {
|
||||
ch = str.substring(0, 1);
|
||||
if (ch === "$") {
|
||||
number = parseInt(str.replace(/^\$/, ""), 16);
|
||||
if (ch === '$') {
|
||||
number = parseInt(str.replace(/^\$/, ''), 16);
|
||||
pushByte(number);
|
||||
} else if (ch >= "0" && ch <= "9") {
|
||||
} else if (ch >= '0' && ch <= '9') {
|
||||
number = parseInt(str, 10);
|
||||
pushByte(number);
|
||||
} else {
|
||||
|
|
@ -2090,7 +2090,7 @@ function SimulatorWidget(node) {
|
|||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// Try to parse the given parameter as a byte operand.
|
||||
// Returns the (positive) value if successful, otherwise -1
|
||||
function tryParseByteOperand(param, symbols) {
|
||||
|
|
@ -2100,9 +2100,9 @@ function SimulatorWidget(node) {
|
|||
param = lookupVal;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
var value;
|
||||
|
||||
|
||||
// Is it a hexadecimal operand?
|
||||
var match_data = param.match(/^\$([0-9a-f]{1,2})$/i);
|
||||
if (match_data) {
|
||||
|
|
@ -2114,15 +2114,15 @@ function SimulatorWidget(node) {
|
|||
value = parseInt(match_data[1], 10);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Validate range
|
||||
if (value >= 0 && value <= 0xff) {
|
||||
return value;
|
||||
} else {
|
||||
return -1;
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Try to parse the given parameter as a word operand.
|
||||
// Returns the (positive) value if successful, otherwise -1
|
||||
function tryParseWordOperand(param, symbols) {
|
||||
|
|
@ -2132,9 +2132,9 @@ function SimulatorWidget(node) {
|
|||
param = lookupVal;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
var value;
|
||||
|
||||
|
||||
// Is it a hexadecimal operand?
|
||||
var match_data = param.match(/^\$([0-9a-f]{3,4})$/i);
|
||||
if (match_data) {
|
||||
|
|
@ -2146,7 +2146,7 @@ function SimulatorWidget(node) {
|
|||
value = parseInt(match_data[1], 10);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Validate range
|
||||
if (value >= 0 && value <= 0xffff) {
|
||||
return value;
|
||||
|
|
@ -2170,8 +2170,8 @@ function SimulatorWidget(node) {
|
|||
var distance = addr - defaultCodePC - 1;
|
||||
|
||||
if(distance < -128 || distance > 127) {
|
||||
wasOutOfRangeBranch = true;
|
||||
return false;
|
||||
wasOutOfRangeBranch = true;
|
||||
return false;
|
||||
}
|
||||
|
||||
pushByte(distance);
|
||||
|
|
@ -2182,7 +2182,7 @@ function SimulatorWidget(node) {
|
|||
function checkImmediate(param, opcode, symbols) {
|
||||
var value, label, hilo, addr;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^#([\w\$]+)$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseByteOperand(match_data[1], symbols);
|
||||
|
|
@ -2192,30 +2192,30 @@ function SimulatorWidget(node) {
|
|||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Label lo/hi
|
||||
if (param.match(/^#[<>]\w+$/)) {
|
||||
label = param.replace(/^#[<>](\w+)$/, "$1");
|
||||
hilo = param.replace(/^#([<>]).*$/, "$1");
|
||||
label = param.replace(/^#[<>](\w+)$/, '$1');
|
||||
hilo = param.replace(/^#([<>]).*$/, '$1');
|
||||
pushByte(opcode);
|
||||
if (labels.find(label)) {
|
||||
addr = labels.getPC(label);
|
||||
switch(hilo) {
|
||||
case ">":
|
||||
pushByte((addr >> 8) & 0xff);
|
||||
return true;
|
||||
case "<":
|
||||
pushByte(addr & 0xff);
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
case '>':
|
||||
pushByte((addr >> 8) & 0xff);
|
||||
return true;
|
||||
case '<':
|
||||
pushByte(addr & 0xff);
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
pushByte(0x00);
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -2223,7 +2223,7 @@ function SimulatorWidget(node) {
|
|||
function checkIndirect(param, opcode, symbols) {
|
||||
var value;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^\(([\w\$]+)\)$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseWordOperand(match_data[1], symbols);
|
||||
|
|
@ -2240,7 +2240,7 @@ function SimulatorWidget(node) {
|
|||
function checkIndirectX(param, opcode, symbols) {
|
||||
var value;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^\(([\w\$]+),X\)$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseByteOperand(match_data[1], symbols);
|
||||
|
|
@ -2257,7 +2257,7 @@ function SimulatorWidget(node) {
|
|||
function checkIndirectY(param, opcode, symbols) {
|
||||
var value;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^\(([\w\$]+)\),Y$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseByteOperand(match_data[1], symbols);
|
||||
|
|
@ -2274,7 +2274,7 @@ function SimulatorWidget(node) {
|
|||
function checkSingle(param, opcode) {
|
||||
if (opcode === null) { return false; }
|
||||
// Accumulator instructions are counted as single-byte opcodes
|
||||
if (param !== "" && param !== "A") { return false; }
|
||||
if (param !== '' && param !== 'A') { return false; }
|
||||
pushByte(opcode);
|
||||
return true;
|
||||
}
|
||||
|
|
@ -2290,7 +2290,7 @@ function SimulatorWidget(node) {
|
|||
pushByte(operand);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -2298,7 +2298,7 @@ function SimulatorWidget(node) {
|
|||
function checkAbsoluteX(param, opcode, symbols) {
|
||||
var number, value, addr;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^([\w\$]+),X$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseWordOperand(match_data[1], symbols);
|
||||
|
|
@ -2311,7 +2311,7 @@ function SimulatorWidget(node) {
|
|||
|
||||
// it could be a label too..
|
||||
if (param.match(/^\w+,X$/i)) {
|
||||
param = param.replace(/,X$/i, "");
|
||||
param = param.replace(/,X$/i, '');
|
||||
pushByte(opcode);
|
||||
if (labels.find(param)) {
|
||||
addr = labels.getPC(param);
|
||||
|
|
@ -2331,7 +2331,7 @@ function SimulatorWidget(node) {
|
|||
function checkAbsoluteY(param, opcode, symbols) {
|
||||
var number, value, addr;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^([\w\$]+),Y$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseWordOperand(match_data[1], symbols);
|
||||
|
|
@ -2344,7 +2344,7 @@ function SimulatorWidget(node) {
|
|||
|
||||
// it could be a label too..
|
||||
if (param.match(/^\w+,Y$/i)) {
|
||||
param = param.replace(/,Y$/i, "");
|
||||
param = param.replace(/,Y$/i, '');
|
||||
pushByte(opcode);
|
||||
if (labels.find(param)) {
|
||||
addr = labels.getPC(param);
|
||||
|
|
@ -2363,7 +2363,7 @@ function SimulatorWidget(node) {
|
|||
function checkZeroPageX(param, opcode, symbols) {
|
||||
var number, value;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^([\w\$]+),X$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseByteOperand(match_data[1], symbols);
|
||||
|
|
@ -2373,7 +2373,7 @@ function SimulatorWidget(node) {
|
|||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -2381,7 +2381,7 @@ function SimulatorWidget(node) {
|
|||
function checkZeroPageY(param, opcode, symbols) {
|
||||
var number, value;
|
||||
if (opcode === null) { return false; }
|
||||
|
||||
|
||||
var match_data = param.match(/^([\w\$]+),Y$/i);
|
||||
if (match_data) {
|
||||
var operand = tryParseByteOperand(match_data[1], symbols);
|
||||
|
|
@ -2391,7 +2391,7 @@ function SimulatorWidget(node) {
|
|||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
@ -2637,7 +2637,7 @@ function SimulatorWidget(node) {
|
|||
}
|
||||
|
||||
function num2hex(nr) {
|
||||
var str = "0123456789abcdef";
|
||||
var str = '0123456789abcdef';
|
||||
var hi = ((nr & 0xf0) >> 4);
|
||||
var lo = (nr & 15);
|
||||
return str.substring(hi, hi + 1) + str.substring(lo, lo + 1);
|
||||
|
|
@ -2645,7 +2645,7 @@ function SimulatorWidget(node) {
|
|||
|
||||
// Prints text in the message window
|
||||
function message(text) {
|
||||
if (text.length>1)
|
||||
if (text.length > 1)
|
||||
text += '\n'; // allow putc operations from the simulator (WDM opcode)
|
||||
$node.find('.messages code').append(text).scrollTop(10000);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue