概要
stack machineが、好きだ。
俺仕様アセンブラの処理系書いてみた。
サンプルコード
function _arrayBufferToBase64(buffer) {
var binary = '';
var bytes = new Uint8Array(buffer);
var len = bytes.byteLength;
for (var i = 0; i < len; i++)
{
binary += String.fromCharCode(bytes[i]);
}
return window.btoa(binary);
}
var swf21 = [
0x46, 0x57, 0x53, 0x06, 0x2F, 0x02, 0x00, 0x00, 0x68, 0x00, 0x1F, 0x40, 0x00, 0x05, 0xDC,
0x00, 0x00, 0x0C, 0x01, 0x00, 0x43, 0x02, 0xFF, 0xFF, 0xFF, 0x3F, 0x03, 0xBD, 0x01, 0x00,
0x00, 0x88, 0xA9, 0x01, 0x03, 0x00, 0x78, 0x00, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x00, 0x30, 0x31, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x30, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x00, 0x96, 0x04, 0x00, 0x08, 0x00, 0x08,
0x01, 0x1D, 0x96, 0x04, 0x00, 0x08, 0x00, 0x08, 0x02, 0x1D, 0x00, 0x3F, 0x0C, 0x19, 0x00,
0x00, 0x00, 0x01, 0x00, 0x04, 0x01, 0x10, 0x54, 0x69, 0x6D, 0x65, 0x73, 0x20, 0x4E, 0x65,
0x77, 0x20, 0x52, 0x6F, 0x6D, 0x61, 0x6E, 0x00, 0x00, 0x00, 0x02, 0x00, 0x7F, 0x09, 0x1F,
0x00, 0x00, 0x00, 0x02, 0x00, 0x6F, 0xF6, 0x1D, 0x0F, 0xFD, 0x85, 0x28, 0x00, 0x6D, 0x20,
0x01, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x28, 0x00, 0x78, 0x00, 0x89, 0x06, 0x06, 0x01, 0x00, 0x02, 0x00, 0x12, 0x8C, 0x6E, 0x00,
0x40, 0x00, 0x00, 0x00
];
function tob(url) {
var bin = atob(url);
var buffer = new Uint8Array(bin.length);
for (var i = 0; i < bin.length; i++)
{
buffer[i] = bin.charCodeAt(i);
}
var blob = new Blob([buffer.buffer], {
type: 'application/x-shockwave-flash'
});
var blob_url = window.URL.createObjectURL(blob);
return blob_url;
}
function run() {
var c1,
c2,
c3,
a,
i,
j;
var pc = 0;
var la = new Array(20);
var r = new Array(400);
var src = document.getElementById('src0').value;
var m = src.split("\n");
for (j = 0; j < m.length ; j++)
{
var cm = m[j].split(" ");
if (cm[0] != "")
{
la[cm[0]] = pc;
}
switch (cm[1])
{
case "push":
r[pc] = 0x96;
pc++;
c1 = cm[2].indexOf("\"") + 1;
c2 = cm[2].indexOf("\"", 1) - c1;
a = cm[2].substr(c1, c2);
c3 = c2 + 2;
r[pc] = c3;
pc++;
r[pc] = 0x00;
pc++;
r[pc] = 0x00;
pc++;
for (i = 0; i < c2; i++)
{
r[pc] = a.charCodeAt(i);
pc++;
}
r[pc] = 0x00;
pc++;
break;
case "end":
r[pc] = 0x00;
pc++;
break;
case "+":
r[pc] = 0x0A;
pc++;
break;
case "-":
r[pc] = 0x0B;
pc++;
break;
case "*":
r[pc] = 0x0C;
pc++;
break;
case "/":
r[pc] = 0x0D;
pc++;
break;
case "=":
r[pc] = 0x0E;
pc++;
break;
case "&":
r[pc] = 0x60;
pc++;
break;
case "|":
r[pc] = 0x61;
pc++;
break;
case "^":
r[pc] = 0x62;
pc++;
break;
case "%":
r[pc] = 0x3f;
pc++;
break;
case ">":
r[pc] = 0x0F;
pc++;
break;
case "&&":
r[pc] = 0x10;
pc++;
break;
case "||":
r[pc] = 0x11;
pc++;
break;
case "!":
r[pc] = 0x12;
pc++;
break;
case "==":
r[pc] = 0x13;
pc++;
break;
case "pop":
r[pc] = 0x17;
pc++;
break;
case "get":
r[pc] = 0x1C;
pc++;
break;
case "++":
r[pc] = 0x50;
pc++;
break;
case "set":
r[pc] = 0x1D;
pc++;
break;
case "add":
r[pc] = 0x21;
pc++;
break;
case "if":
r[pc] = 0x9D;
pc++;
r[pc] = 0x02;
pc++;
r[pc] = 0x00;
pc++;
if (la[cm[2]] > 1)
{
c3 = la[cm[2]] - pc + 254;
r[pc] = c3;
pc++;
r[pc] = 0xFF;
pc++;
}
else
{
r[pc] = cm[2];
pc++;
r[pc] = 0x00;
pc++;
}
break;
case "jp":
r[pc] = 0x99;
pc++;
r[pc] = 0x02;
pc++;
r[pc] = 0x00;
pc++;
if (la[cm[2]] > 1)
{
c3 = la[cm[2]] - pc + 254;
r[pc] = c3;
pc++;
r[pc] = 0xFF;
pc++;
}
else
{
r[pc] = cm[2];
pc++;
r[pc] = 0x00;
pc++;
}
break;
}
}
for (var l in la)
{
for (i = 0; i < pc; i++)
{
if (r[i] == l)
{
r[i] = la[l] - i - 2;
}
}
}
for (i = 0; i < pc; i++)
{
swf21[i + 31] = r[i];
}
var b = _arrayBufferToBase64(swf21);
var h = '<embed src ="';
var l = '" type="application/x-shockwave-flash" width="300" height="300"></embed>';
var swf = h + tob(b) + l;
var out = document.getElementById('out');
out.innerHTML = swf;
}
成果物
以上。