Memory now follows the location, shows red when writing to RAM and GREEN when reading, yellow when the address bus just happens to be sitting on the address but not actively reading or writing.
This commit is contained in:
MatCat
parent
3943201db1
commit
a3f5382437
@ -41,11 +41,12 @@
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</div>
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<div>
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<input type="button" id ="btn_clk" value="CLOCK" />
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<span id="clk_counter">0</span><input type="button" id ="btn_runtil" value="BREAK AT:" /> 0x<input id="addrbrk" type="text" value="00" pattern="[a-fA-F\d]+" />
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<span id="clk_counter">0</span><input type="button" id ="btn_runtil" value="BREAK AT:" /> 0x<input id="addrbrk" type="text" value="05" pattern="[a-fA-F\d]+" />
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<span>Clock Interval: </span><input id="clkinterval" type="text" value="1" />mS
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</div>
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<div>
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<span>Text Output (0x8000-0x83ff):</span><br />
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<span id="TEXT_OUT"></span>
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<span id="TEXT_OUT" style="border: 1px solid black; min-width: 48em; min-height: 2.2em; display: inline-block;"></span>
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</div>
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<div>
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<span>RAM : [<span id="Address_BUS"></span>]</span><br /><span id="RAM"></brspan>
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@ -57,5 +58,6 @@
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<script src="js/cpu.js"></script>
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<script src="js/microcode_compiler.js"></script>
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<script src="js/main.js"></script>
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<script src="js/asm_compiler.js"></script>
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</body>
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</html>
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113
js/asm_compiler.js
Normal file
113
js/asm_compiler.js
Normal file
@ -0,0 +1,113 @@
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class ASM_Compiler {
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constructor(assemblycode) {
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this.ASM = assemblycode.replace(/ +/g, ' ').replace(/\\t+/g, ' ').replace(/\\r+/g, '');
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this.Labels = new Array();
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this.Directives = {
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Globals: new Array()
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};
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this.Sections = new Array();
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this.CompileError = false;
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this.CompileErrorReason = "";
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}
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firstPass() {
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let codeLines = this.ASM.split("\n");
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let currentSection = "";
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console.log(`There are ${codeLines.length} lines`);
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for (let linenum = 0; linenum < codeLines.length; linenum++) {
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console.log(`Line ${linenum}: ${codeLines[linenum]}`);
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let globalDeclared = false;
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let sectionDeclared = false;
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let lineColumns = codeLines[linenum].split(" ");
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for (let colnum = 0; colnum < lineColumns.length; colnum++) {
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console.log(`Column ${colnum}: ${lineColumns[colnum]}`);
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switch (colnum) {
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case 0: { // Labels
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if (currentSection === "" && lineColumns[colnum] !== "") {
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// error, shouldn't be anything here in the directives section
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this.CompileError = true;
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this.CompileErrorReason = "Unexpected label in directives section: " + lineColumns[colnum];
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this.CompileErrorLine = linenum+1;
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return false;
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}
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break;
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}
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case 1: { // Instructions
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if (currentSection === "" && lineColumns[colnum] === "") {
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// Error, in directive there should be SOMETHING here
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this.CompileError = true;
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this.CompileErrorReason = "Missing Directive";
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this.CompileErrorLine = linenum+1;
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return false;
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}
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if (currentSection === "") {
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switch (lineColumns[colnum].toLowerCase()) {
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case "global": {
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if (colnum === lineColumns.length - 1) {
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this.CompileError = true;
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this.CompileErrorReason = "Missing Global Label";
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this.CompileErrorLine = linenum + 1;
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return false;
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}
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globalDeclared = true;
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break;
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}
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case "section": {
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if (colnum === lineColumns.length - 1) {
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this.CompileError = true;
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this.CompileErrorReason = "Missing section type";
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this.CompileErrorLine = linenum + 1;
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return false;
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}
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sectionDeclared = true;
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break;
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}
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default: {
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this.CompileError = true;
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this.CompileErrorReason = "Unknown directive: " + lineColumns[colnum];
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this.CompileErrorLine = linenum + 1;
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return false;
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}
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}
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break;
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} else {
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if (!FindInstructon({Instruction:lineColumns[colnum]})) {
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this.CompileError = true;
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this.CompileErrorReason = "Unknown instruction: " + lineColumns[colnum];
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this.CompileErrorLine = linenum + 1;
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return false;
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}
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}
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}
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case 2: { // Operands
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if (currentSection === "" && lineColumns[colnum] === "" && (globalDeclared === true || sectionDeclared === true)) {
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// There should be a label here!
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this.CompileError = true;
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if (globalDeclared) this.CompileErrorReason = "Missing Global Label";
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if (sectionDeclared) this.CompileErrorReason = "Missing Section type";
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this.CompileErrorLine = linenum+1;
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return false;
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}
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if (globalDeclared) {
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let globallabel = {
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Label: lineColumns[colnum].replace(":", ""),
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Address: 0
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};
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this.Directives.Globals.push(globallabel);
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}
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if (sectionDeclared) {
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let sectionType = {
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Label: lineColumns[colnum].replace(".", ""),
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Address: 0
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};
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currentSection = sectionType;
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this.Sections.push(currentSection);
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}
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break;
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}
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}
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}
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}
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}
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}
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84
js/cpu.js
84
js/cpu.js
@ -66,9 +66,9 @@ function GetMnemonic(mcarray,instruction) {
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function generateClocks(clk_cnt) {
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for (let a = 0; a < clk_cnt; a++) {
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cpu.CLOCK(true);
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updateHTML();
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clk_count++;
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clk_counter.innerText = clk_count;
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cpu.CLOCK(false);
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updateHTML();
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}
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}
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@ -79,17 +79,23 @@ function generateClocks_Interval() {
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cpu.CLOCK(true);
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}*/
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cpu.CLOCK(true);
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clk_count++;
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clk_counter.innerText = clk_count;
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cpu.CLOCK(false);
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updateHTML();
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if (cpu.ADDRBUS === breakpt) clearInterval(intval);
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}
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function drawCPUInfo() {
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updateHTML();
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window.requestAnimationFrame(drawCPUInfo);
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}
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function RunUntilBreak(addr) {
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breakpt = addr;
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intval = setInterval(function(){
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generateClocks_Interval();
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}, 1);
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}, parseInt(clkinterval.value));
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}
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function printTextOut(ram,startaddr,endaddr) {
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@ -101,14 +107,22 @@ function printTextOut(ram,startaddr,endaddr) {
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}
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function printRAM(ram) {
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let startADDR = (cpu.ADDRBUS & 0xfff0) - 0x80;
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if (startADDR < 0) startADDR = 0;
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if (startADDR > 0xFEFF) startADDR = 0xFF00;
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let sp_ram = document.getElementById("RAM");
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let ramtext = "ADDR : 0 1 2 3 4 5 6 7 8 9 A B C D E F<br />";
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for (let a = 0; a < 16; a++) {
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ramtext += "0x" + formatHex(a*16,4) + ": ";
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for (let a = startADDR; a < (startADDR+255); a+=16) {
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ramtext += "0x" + formatHex(a,4) + ": ";
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for (let b = 0; b < 16; b++) {
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if (cpu.ADDRBUS === (a*16)+b) ramtext += '<span style="background-color: #ffff55">';
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ramtext += formatHex(ram[(a*16)+b],4) + " ";
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if (cpu.ADDRBUS === (a*16)+b) ramtext += '</span>';
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if (cpu.ADDRBUS === (a)+b) {
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let bgcolor = "#ffff55";
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if ((cpu.MC_Controls & CONTROL_OUT_RO) === CONTROL_OUT_RO) bgcolor = "#55ff55";
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if (cpu.MC_Controls & CONTROL_RI) bgcolor = "#ff5555";
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ramtext += `<span style="background-color: ${bgcolor}">`;
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}
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ramtext += formatHex(ram[(a)+b],4) + " ";
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if (cpu.ADDRBUS === (a)+b) ramtext += '</span>';
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}
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ramtext += "<br />";
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}
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@ -116,7 +130,7 @@ function printRAM(ram) {
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let sp_stackram = document.getElementById("STACK-RAM");
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ramtext = "ADDR : 0 1 2 3 4 5 6 7 8 9 A B C D E F<br />";
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for (let a = 0xffa0; a < 0x10000; a+=16) {
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for (let a = 0xffe0; a < 0x10000; a+=16) {
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ramtext += "0x" + formatHex(a,4) + ": ";
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for (let b = 0; b < 16; b++) {
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if (cpu.ADDRBUS === (a)+b) ramtext += '<span style="background-color: #ffff55">';
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@ -283,7 +297,7 @@ class CPU_8SA1 {
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OUTMUX |= (this.MC_Controls & CONTROL_OEM0) ? 0b00001 : 0;
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if (OUTMUX === OECONTROL_RO) {
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console.log("DATABUS = RAM");
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//console.log("DATABUS = RAM");
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this.DATABUS = this.RAM[this.ADDRBUS];
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if (this.DATABUS === undefined) this.DATABUS = 0;
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}
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@ -322,12 +336,12 @@ class CPU_8SA1 {
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let MC_Controls = this.MCRAM[mcra];
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if (MC_Controls & CONTROL_MCL0) this.MCC = 0;
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if (MC_Controls & CONTROL_MCL8) this.MCC = 8;
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if (MC_Controls & CONTROL_MCL0) console.log(`Reset microcode counter to 0`);
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if (MC_Controls & CONTROL_MCL8) console.log(`Reset microcode counter to 8`);
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//if (MC_Controls & CONTROL_MCL0) console.log(`Reset microcode counter to 0`);
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//if (MC_Controls & CONTROL_MCL8) console.log(`Reset microcode counter to 8`);
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mcra = ((this.IR & 0b0000001111111111) << 4) | this.MCC | ((this.SR & 0b00000011) << 14);
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MC_Controls = this.MCRAM[mcra];
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if (MC_Controls === undefined) MC_Controls = 0;
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console.log(`[${mcra.toString(2)}] Control Lines: ${MC_Controls.toString(2)}`);
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//console.log(`[${mcra.toString(2)}] Control Lines: ${MC_Controls.toString(2)}`);
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if (MC_Controls !== this.MC_Controls) {
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if (MC_Controls & CONTROL_OEME) {
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// Set the DATABUS based on whatever output we are controlling
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@ -337,46 +351,46 @@ class CPU_8SA1 {
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OUTMUX |= (MC_Controls & CONTROL_OEM1) ? 0b00010 : 0;
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OUTMUX |= (MC_Controls & CONTROL_OEM0) ? 0b00001 : 0;
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console.log(`OUTPUT MUX: ${OUTMUX.toString(2)}`);
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//console.log(`OUTPUT MUX: ${OUTMUX.toString(2)}`);
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switch (OUTMUX) {
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case OECONTROL_PC: {
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this.DATABUS = this.PC;
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console.log("DATABUS = PC");
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//console.log("DATABUS = PC");
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break;
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}
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case OECONTROL_SP: {
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this.DATABUS = this.SP;
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console.log("DATABUS = SP");
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//console.log("DATABUS = SP");
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break;
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}
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case OECONTROL_AL: {
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this.DATABUS = ((this.DATABUS & BITMASK_8) << 8) | (this.GPA & BITMASK_8);
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console.log("DATABUS LOW = A");
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//console.log("DATABUS LOW = A");
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break;
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}
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case OECONTROL_AH: {
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this.DATABUS = ((this.GPA & BITMASK_8) << 8) | (this.DATABUS & BITMASK_8);
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console.log("DATABUS HIGH = A");
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//console.log("DATABUS HIGH = A");
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break;
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}
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case OECONTROL_BL: {
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this.DATABUS = ((this.DATABUS & BITMASK_8) << 8) | (this.GPB & BITMASK_8);
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console.log("DATABUS LOW = B");
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//console.log("DATABUS LOW = B");
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break;
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}
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case OECONTROL_BH: {
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this.DATABUS = ((this.GPB & BITMASK_8) << 8) | (this.DATABUS & BITMASK_8);
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console.log("DATABUS HIGH = B");
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// console.log("DATABUS HIGH = B");
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break;
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}
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case OECONTROL_CL: {
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this.DATABUS = ((this.DATABUS & BITMASK_8) << 8) | (this.GPC & BITMASK_8);
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console.log("DATABUS LOW = C");
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//console.log("DATABUS LOW = C");
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break;
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}
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case OECONTROL_CH: {
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this.DATABUS = ((this.GPC & BITMASK_8) << 8) | (this.DATABUS & BITMASK_8);
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console.log("DATABUS HIGH = C");
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//console.log("DATABUS HIGH = C");
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break;
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}
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case OECONTROL_DL: {
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@ -389,7 +403,7 @@ class CPU_8SA1 {
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}
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case OECONTROL_AB: {
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this.DATABUS = ((this.GPB & BITMASK_8) << 8) | (this.GPA & BITMASK_8);
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console.log("DATABUS = AB");
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//console.log("DATABUS = AB");
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break;
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}
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case OECONTROL_AC: {
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@ -437,7 +451,7 @@ class CPU_8SA1 {
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break;
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}
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case OECONTROL_AE: {
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console.log("ALU Enable");
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//console.log("ALU Enable");
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this.DATABUS = (this.GPB << 8) | this.GPA;
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let ALU_A = this.DATABUS & BITMASK_8;
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let ALU_B = (this.DATABUS & (BITMASK_8 << 8)) >> 8;
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@ -446,7 +460,7 @@ class CPU_8SA1 {
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let ALUMUX = (MC_Controls & CONTROL_ALUM1) ? 0b10 : 0;
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ALUMUX |= (MC_Controls & CONTROL_ALUM0) ? 0b01 : 0;
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console.log(`ALU: A=${ALU_A}, B=${ALU_B}, MUX: ${ALUMUX}`);
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//console.log(`ALU: A=${ALU_A}, B=${ALU_B}, MUX: ${ALUMUX}`);
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if (MC_Controls & CONTROL_ALUI) console.log("ALU Inverting B");
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let SHIFTING = false;
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if (MC_Controls & CONTROL_ALUSL) SHIFTING = true;
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@ -504,17 +518,17 @@ class CPU_8SA1 {
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}
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case OECONTROL_AO: {
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this.DATABUS = (this.DATABUS & (BITMASK_8 << 8)) | this.ALUSUM;
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console.log("DATABUS = SUM");
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//console.log("DATABUS = SUM");
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break;
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}
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case OECONTROL_SR: {
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this.DATABUS = ((this.DATABUS & BITMASK_8) << 8) | (this.SR & BITMASK_8);
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console.log("DATABUS = STATUS REGISTER");
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//console.log("DATABUS = STATUS REGISTER");
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break;
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}
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case OECONTROL_RO: {
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// We dont actually want to do anything here since ram outputs on CLK
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console.log("DATABUS = RAM (on CLK)");
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//console.log("DATABUS = RAM (on CLK)");
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break;
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}
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}
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@ -570,32 +584,32 @@ class CPU_8SA1 {
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GPA_In_LOW_CLK() {
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this.GPA = this.DATABUS & 0x00ff;
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console.log(`GPA = DATABUS LOW`);
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//console.log(`GPA = DATABUS LOW`);
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}
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GPA_In_HIGH_CLK() {
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this.GPA = (this.DATABUS & 0xff00) >> 8;
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console.log(`GPA = DATABUS HIGH`);
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//console.log(`GPA = DATABUS HIGH`);
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}
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GPB_In_LOW_CLK() {
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this.GPB = this.DATABUS & 0x00ff;
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console.log(`GPB = DATABUS LOW`);
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//console.log(`GPB = DATABUS LOW`);
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}
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GPB_In_HIGH_CLK() {
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this.GPB = (this.DATABUS & 0xff00) >> 8;
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console.log(`GPB = DATABUS HIGH`);
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//console.log(`GPB = DATABUS HIGH`);
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}
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GPC_In_LOW_CLK() {
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this.GPC = this.DATABUS & 0x00ff;
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console.log(`GPC = DATABUS LOW`);
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//console.log(`GPC = DATABUS LOW`);
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}
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GPC_In_HIGH_CLK() {
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this.GPC = (this.DATABUS & 0xff00) >> 8;
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console.log(`GPC = DATABUS HIGH`);
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//console.log(`GPC = DATABUS HIGH`);
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}
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GPD_In_LOW_CLK() {
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12
js/main.js
12
js/main.js
@ -36,7 +36,7 @@ cpu.RAM[4] = is_CMP.Bytecode;
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*/
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cpu.RAM[0] = is_LDAB_i.Bytecode;
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cpu.RAM[1] = 0x0050;
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cpu.RAM[1] = 0x0100;
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cpu.RAM[2] = is_PHAB.Bytecode;
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cpu.RAM[3] = is_JSR.Bytecode;
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cpu.RAM[4] = 0x00D0;
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@ -89,12 +89,13 @@ cpu.RAM[0xFC] = is_RTS.Bytecode;
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|
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|
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stringToRAM("Blackbeard420 is a Butt Fuckers",cpu.RAM,0x50);
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stringToRAM("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc maximus erat mollis, fermentum quam at, blandit turpis. Pellentesque arcu tortor, smoke weed guam sagittis ac, posuere ut ipsum. Nulla facilisi. Mauris eget urna id sem porttitor consequat ultrices porttitor magna. Quisque condimentum porta viverra. Suspendisse ac condimentum ante. Duis accumsan augue urna, at ultricies nunc accumsan eget. Nullam eleifend.",cpu.RAM,0x100);
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updateHTML();
|
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|
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let btn_clk = document.getElementById("btn_clk");
|
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let btn_runtil = document.getElementById("btn_runtil");
|
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let brkpt = document.getElementById("addrbrk");
|
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let clkinterval = document.getElementById("clkinterval");
|
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let btn_rst = document.getElementById("btn_rst");
|
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let clk_counter = document.getElementById("clk_counter");
|
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let clk_count = 0;
|
||||
@ -103,12 +104,10 @@ btn_clk.addEventListener('mousedown', function(evt) {
|
||||
cpu.CLOCK(true);
|
||||
clk_count++;
|
||||
clk_counter.innerText = clk_count;
|
||||
updateHTML();
|
||||
});
|
||||
|
||||
btn_clk.addEventListener('mouseup', function(evt) {
|
||||
cpu.CLOCK(false);
|
||||
updateHTML();
|
||||
});
|
||||
|
||||
btn_runtil.addEventListener('click', function(evt) {
|
||||
@ -134,5 +133,6 @@ btn_rst.addEventListener('click', function(evt) {
|
||||
|
||||
clk_count = 0;
|
||||
clk_counter.innerText = clk_count;
|
||||
updateHTML();
|
||||
});
|
||||
});
|
||||
|
||||
window.requestAnimationFrame(drawCPUInfo);
|
||||
@ -59,6 +59,15 @@ const CONTROL_ALU_XNOR = CONTROL_OUT_AE | CONTROL_ALUM1 | CONTROL_ALUM0 | CONTRO
|
||||
|
||||
let Instructions = new Array();
|
||||
|
||||
function FindInstructon(ins) {
|
||||
for (let a = 0; a < Instructions.length; a++) {
|
||||
if (Instructions[a].Mnemonic.toLowerCase() === ins.Instruction.toLowerCase()) {
|
||||
return Instructions[a];
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
function GenerateMicrocode(mcarray,cpu) {
|
||||
for (let a = 0; a < mcarray.length; a++) {
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user