let isalist = document.getElementById("isa_list");

let ISAPrepList = new Array();

function hasInstruction(ins) {
    for (let a = 0; a < ISAPrepList.length; a++) {
        if (ISAPrepList[a].Mnemonic.toLowerCase() === ins.Mnemonic.toLowerCase()) {
            return a;
        }
    }
    return false;
}

for (let a = 0; a < Instructions.length; a++) {
    if (hasInstruction(Instructions[a]) === false) {
        ISAPrepList.push({Mnemonic: Instructions[a].Mnemonic,LongName: Instructions[a].LongName,Varients: new Array(Instructions[a])});
    } else {
        console.log(`${Instructions[a].Mnemonic} IS ALREADY THERE LETS ADD TO IT`);
        ISAPrepList[hasInstruction(Instructions[a])].Varients.push(Instructions[a]);
    }
}

let outHTML = "";
for (let a = 0; a < ISAPrepList.length; a++) {
    outHTML += `<div style="width: 60%; background-color: #eee;">`;
    outHTML += `<h4>${ISAPrepList[a].Mnemonic}&nbsp;&nbsp;&nbsp;&nbsp;${ISAPrepList[a].LongName} </h4>`;
    outHTML += `<table style="width: 100%;">`;
    outHTML += `<tr>`;
    outHTML += `<td style="border-bottom: 1px solid black;">Address Mode</td><td style="border-bottom: 1px solid black;">Example</td><td style="border-bottom: 1px solid black;">Bytecode</td><td style="border-bottom: 1px solid black;">Words</td><td style="border-bottom: 1px solid black;">Cycles</td>`;
    outHTML += `</tr>`;
    for (let b=0; b < ISAPrepList[a].Varients.length; b++) {
        let operandtext = "";
        for (let c = 0; c < ISAPrepList[a].Varients[b].Operands.length; c++) {
            let operandresult = ISAPrepList[a].Varients[b].Operands[c].Operand;
            let ogor = operandresult;
            if (operandresult === "#") operandresult = "";
            if (operandresult === "$" || operandresult === "") {
                switch (Math.floor(Math.random() * 9)) {
                    case 0:
                    case 1:
                    case 2:
                    case 3: {
                        operandresult = ((ogor === "#") ? "" : ogor) + formatHex(Math.floor(Math.random() * (2 ** ISAPrepList[a].Varients[b].Operands[c].Bitwidth)), ((ISAPrepList[a].Varients[b].Operands[c].Bitwidth === 16) ? 4 : 2)) + "h";
                        break;
                    }
                    case 4:
                    case 5:
                    case 6:
                    case 7: {
                        operandresult = ((ogor === "#") ? "" : ogor) + Math.floor(Math.random() * (2 ** ISAPrepList[a].Varients[b].Operands[c].Bitwidth));
                        break;
                    }
                    case 8: {
                        operandresult = ((ogor === "#") ? "" : ogor) + "MyVar";
                        break;
                    }
                }
            }
            if (ogor === "#") operandresult = "[" + operandresult + "]";

            operandtext += ` ${operandresult},`;
        }
        operandtext = operandtext.substring(0,operandtext.length-1);
        outHTML += `<tr>`;
        outHTML += `<td>${ISAPrepList[a].Varients[b].Type}</td><td>${ISAPrepList[a].Mnemonic}${operandtext}</td><td>0x${formatHex(ISAPrepList[a].Varients[b].Bytecode,4)}</td><td>${ISAPrepList[a].Varients[b].Words}</td><td>${ISAPrepList[a].Varients[b].Cycles}</td>`;
        outHTML += `</tr>`;
    }
    outHTML += `</table>`;
    outHTML += `</div>`;
}

isalist.innerHTML = outHTML;