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pluotsorbet
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move interpreter into vm.js

This commit is contained in:
Andreas Gal 2014-07-16 12:15:48 -07:00
Родитель 62aa73359d
Коммит d30138f9d8
3 изменённых файлов: 830 добавлений и 818 удалений
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819
frame.js
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@ -157,823 +157,6 @@ Frame.prototype.invoke = function(op, methodInfo) {
}
var callee = this.pushFrame(methodInfo, consumes);
var cp = callee.cp;
var stack = callee.stack;
while (true) {
var op = callee.read8();
// var x = [];
// callee.stack.forEach(function (e) { x.push(e.toSource()); });
// console.log(callee.methodInfo.classInfo.className, callee.methodInfo.name, callee.ip - 1, OPCODES[op], x.join(" "));
switch (op) {
case 0x00: // nop
break;
case 0x01: // aconst_null
stack.push(null);
break;
case 0x02: // aconst_m1
stack.push(-1);
break;
case 0x03: // iconst_0
case 0x0b: // fconst_0
case 0x0e: // dconst_0
stack.push(0);
break;
case 0x04: // iconst_1
case 0x0c: // fconst_1
case 0x0f: // dconst_1
stack.push(1);
break;
case 0x05: // iconst_2
case 0x0d: // fconst_2
stack.push(2);
break;
case 0x06: // iconst_3
stack.push(3);
break;
case 0x07: // iconst_4
stack.push(4);
break;
case 0x08: // iconst_5
stack.push(5);
break;
case 0x09: // lconst_0
stack.push2(gLong.fromInt(0));
break;
case 0x0a: // lconst_1
stack.push2(gLong.fromInt(1));
break;
case 0x10: // bipush
stack.push(callee.read8signed());
break;
case 0x11: // sipush
stack.push(callee.read16signed());
break;
case 0x12: // ldc
var constant = cp[callee.read8()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(CLASSES.newString(callee, cp[constant.string_index].bytes));
break;
default:
throw new Error("not support constant type");
}
break;
case 0x13: // ldc_w
var constant = cp[callee.read16()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(cp[constant.string_index].bytes);
break;
default:
throw new Error("not support constant type");
}
break;
case 0x14: // ldc2_w
var constant = cp[callee.read16()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(cp[constant.string_index].bytes);
break;
case TAGS.CONSTANT_Long:
stack.push2(Numeric.getLong(constant.bytes));
break;
case TAGS.CONSTANT_Double:
stack.push2(constant.bytes.readDoubleBE(0));
break;
default:
throw new Error("not support constant type");
}
break;
case 0x15: // iload
case 0x17: // fload
case 0x19: // aload
var idx = callee.isWide() ? callee.read16() : callee.read8();
stack.push(callee.getLocal(idx));
break;
case 0x16: // lload
case 0x18: // dload
var idx = callee.isWide() ? callee.read16() : callee.read8();
stack.push2(callee.getLocal(idx));
break;
case 0x1a: // iload_0
case 0x22: // fload_0
case 0x2a: // aload_0
stack.push(callee.getLocal(0));
break;
case 0x1b: // iload_1
case 0x23: // fload_1
case 0x2b: // aload_1
stack.push(callee.getLocal(1));
break;
case 0x1c: // iload_2
case 0x24: // fload_2
case 0x2c: // aload_2
stack.push(callee.getLocal(2));
break;
case 0x1d: // iload_3
case 0x25: // fload_3
case 0x2d: // aload_3
stack.push(callee.getLocal(3));
break;
case 0x1e: // lload_0
case 0x26: // dload_0
stack.push2(callee.getLocal(0));
break;
case 0x1f: // lload_1
case 0x27: // dload_1
stack.push2(callee.getLocal(1));
break;
case 0x20: // lload_2
case 0x28: // dload_2
stack.push2(callee.getLocal(2));
break;
case 0x21: // lload_3
case 0x29: // dload_3
stack.push2(callee.getLocal(3));
break;
case 0x2e: // iaload
case 0x30: // faload
case 0x32: // aaload
case 0x33: // baload
case 0x34: // caload
case 0x35: // saload
var idx = stack.pop();
var refArray = stack.pop();
if (!callee.checkArrayAccess(refArray, idx))
break;
stack.push(refArray[idx]);
break;
case 0x2f: // laload
case 0x31: // daload
var idx = stack.pop();
var refArray = stack.pop();
if (!callee.checkArrayAccess(refArray, idx))
break;
stack.push2(refArray[idx]);
break;
case 0x36: // istore
case 0x38: // fstore
case 0x3a: // astore
var idx = callee.isWide() ? callee.read16() : callee.read8();
callee.setLocal(idx, stack.pop());
break;
case 0x37: // lstore
case 0x39: // dstore
var idx = callee.isWide() ? callee.read16() : callee.read8();
callee.setLocal(idx, stack.pop2());
break;
case 0x3b: // istore_0
case 0x43: // fstore_0
case 0x4b: // astore_0
callee.setLocal(0, stack.pop());
break;
case 0x3c: // istore_1
case 0x44: // fstore_1
case 0x4c: // astore_1
callee.setLocal(1, stack.pop());
break;
case 0x3d: // istore_2
case 0x45: // fstore_2
case 0x4d: // astore_2
callee.setLocal(2, stack.pop());
break;
case 0x3e: // istore_3
case 0x46: // fstore_3
case 0x4e: // astore_3
callee.setLocal(3, stack.pop());
break;
case 0x3f: // lstore_0
case 0x47: // dstore_0
callee.setLocal(0, stack.pop2());
break;
case 0x40: // lstore_1
case 0x48: // dstore_1
callee.setLocal(1, stack.pop2());
break;
case 0x41: // lstore_2
case 0x49: // dstore_2
callee.setLocal(2, stack.pop2());
break;
case 0x42: // lstore_3
case 0x4a: // dstore_3
callee.setLocal(2, stack.pop2());
break;
case 0x4f: // iastore
case 0x51: // fastore
case 0x53: // aastore
case 0x54: // bastore
case 0x55: // castore
case 0x56: // sastore
var val = stack.pop();
var idx = stack.pop();
var refArray = stack.pop();
if (!callee.checkArrayAccess(refArray, idx))
break;
refArray[idx] = val;
break;
case 0x50: // lastore
case 0x52: // dastore
var val = stack.pop2();
var idx = stack.pop();
var refArray = stack.pop();
if (!callee.checkArrayAccess(refArray, idx))
break;
refArray[idx] = val;
break;
case 0x57: // pop
stack.pop();
break;
case 0x58: // pop2
stack.pop2();
break;
case 0x59: // dup
var val = stack.pop();
stack.push(val);
stack.push(val);
break;
case 0x5a: // dup_x1
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val1);
stack.push(val2);
stack.push(val1);
break;
case 0x5b: // dup_x2
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
stack.push(val1);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5c: // dup2
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val2);
stack.push(val1);
break;
case 0x5d: // dup2_x1
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5e: // dup2_x2
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
var val4 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val4);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5f: // swap
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val1);
stack.push(val2);
break;
case 0x84: // iinc
var wide = callee.isWide();
var idx = wide ? callee.read16() : callee.read8();
var val = wide ? callee.read16signed() : callee.read8signed();
callee.setLocal(idx, callee.getLocal(idx) + val);
break;
case 0x60: // iadd
stack.push((stack.pop() + stack.pop())|0);
break;
case 0x61: // ladd
stack.push2(stack.pop2().add(stack.pop2()));
break;
case 0x62: // fadd
stack.push(utils.double2float(stack.pop() + stack.pop()));
break;
case 0x63: // dadd
stack.push2(stack.pop2() + stack.pop2());
break;
case 0x64: // isub
stack.push((- stack.pop() + stack.pop())|0);
break;
case 0x65: // lsub
stack.push2(stack.pop2().add(stack.pop2()).negate());
break;
case 0x66: // fsub
stack.push(utils.double2float(- stack.pop() + stack.pop()));
break;
case 0x67: // dsub
stack.push2(- stack.pop2() + stack.pop2());
break;
case 0x68: // imul
stack.push(Math.imul(stack.pop(), stack.pop()));
break;
case 0x69: // lmul
stack.push2(stack.pop2().multiply(stack.pop2()));
break;
case 0x6a: // fmul
stack.push(utils.double2float(stack.pop() * stack.pop()));
break;
case 0x6b: // dmul
stack.push2(stack.pop2() * stack.pop2());
break;
case 0x6c: // idiv
var val1 = stack.pop();
var val2 = stack.pop();
if (!val1) {
callee.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push((val2 === utils.INT_MIN && val1 === -1) ? val2 : ((a / b)|0));
break;
case 0x6d: // ldiv
var val1 = stack.pop2();
var val2 = stack.pop2();
if (!val1.isZero()) {
callee.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push2(val2.div(val1));
break;
case 0x6e: // fdiv
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(utils.double2float(val2 / val1));
break;
case 0x6f: // ddiv
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2 / val1);
break;
case 0x70: // irem
var val1 = stack.pop();
var val2 = stack.pop();
if (!val1) {
callee.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push(val2 % val1);
break;
case 0x71: // lrem
var val1 = stack.pop2();
var val2 = stack.pop2();
if (val1.isZero()) {
callee.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push2(val2.modulo(val1));
break;
case 0x72: // frem
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(utils.double2float(val2 % val1));
break;
case 0x73: // drem
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2 % val1);
break;
case 0x74: // ineg
stack.push((- stack.pop())|0);
break;
case 0x75: // lneg
stack.push2(stack.pop2().negate());
break;
case 0x76: // fneg
stack.push(- stack.pop());
break;
case 0x77: // dneg
stack.push2(- stack.pop2());
break;
case 0x78: // ishl
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 << val1);
break;
case 0x79: // lshl
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftLeft(val1));
break;
case 0x7a: // ishr
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 >> val1);
break;
case 0x7b: // lshr
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftRight(val1));
break;
case 0x7c: // iushr
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 >>> val1);
break;
case 0x7d: // lushr
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftRightUnsigned(val1));
break;
case 0x7e: // iand
stack.push(stack.pop() & stack.pop());
break;
case 0x7f: // land
stack.push2(stack.pop2().and(stack.pop2()));
break;
case 0x80: // ior
stack.push(stack.pop() | stack.pop());
break;
case 0x81: // lor
stack.push2(stack.pop2().or(stack.pop2()));
break;
case 0x82: // ixor
stack.push(stack.pop() ^ stack.pop());
break;
case 0x83: // lxor
stack.push2(stack.pop2().xor(stack.pop2()));
break;
case 0x94: // lcmp
var val1 = stack.pop2();
var val2 = stack.pop2();
if (val2.greaterThan(val1)) {
stack.push(1);
} else if (val2.lessThan(val1)) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x95: // fcmpl
var val1 = stack.pop();
var val2 = stack.pop();
if (isNaN(val1) || isNaN(val2)) {
stack.push(-1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x96: // fcmpg
var val1 = stack.pop();
var val2 = stack.pop();
if (isNaN(val1) || isNaN(val2)) {
stack.push(1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x97: // dcmpl
var val1 = stack.pop2();
var val2 = stack.pop2();
if (isNaN(val1) || isNaN(val2)) {
stack.push(-1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x98: // dcmpg
var val1 = stack.pop2();
var val2 = stack.pop2();
if (isNaN(val1) || isNaN(val2)) {
stack.push(1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x99: // ifeq
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() === 0 ? jmp : callee.ip;
break;
case 0x9a: // ifne
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() !== 0 ? jmp : callee.ip;
break;
case 0x9b: // iflt
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() < 0 ? jmp : callee.ip;
break;
case 0x9c: // ifge
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() >= 0 ? jmp : callee.ip;
break;
case 0x9d: // ifgt
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() > 0 ? jmp : callee.ip;
break;
case 0x9e: // ifle
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() <= 0 ? jmp : callee.ip;
break;
case 0x9f: // if_icmpeq
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() === stack.pop() ? jmp : callee.ip;
break;
case 0xa0: // if_cmpne
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() !== stack.pop() ? jmp : callee.ip;
break;
case 0xa1: // if_icmplt
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() > stack.pop() ? jmp : callee.ip;
break;
case 0xa2: // if_icmpge
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() <= stack.pop() ? jmp : callee.ip;
break;
case 0xa3: // if_icmpgt
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() < stack.pop() ? jmp : callee.ip;
break;
case 0xa4: // if_icmple
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() >= stack.pop() ? jmp : callee.ip;
break;
case 0xa5: // if_acmpeq
var jmp = callee.ip - 1 + calee.read16signed();
callee.ip = stack.pop() === stack.pop() ? jmp : callee.ip;
break;
case 0xa6: // if_acmpne
var jmp = callee.ip - 1 + callee.read16signed();
callee.ip = stack.pop() !== stack.pop() ? jmp : callee.ip;
break;
case 0xc6: // ifnull
var ref = stack.pop();
if (!ref)
callee.ip += callee.read16signed() - 1;
break;
case 0xc7: // ifnonnull
var ref = stack.pop();
if (!!ref)
callee.ip += callee.read16signed() - 1;
break;
case 0xa7: // goto
callee.ip += callee.read16signed() - 1;
break;
case 0xc8: // goto_w
callee.ip += callee.read32signed() - 1;
break;
case 0xa8: // jsr
var jmp = callee.read16();
stack.push(callee.ip);
callee.ip = jmp;
break;
case 0xc9: // jsr_w
var jmp = callee.read32();
stack.push(callee.ip);
callee.ip = jmp;
break;
case 0xa9: // ret
var idx = callee.isWide() ? callee.read16() : callee.read8();
callee.ip = callee.getLocal(idx);
break;
case 0x85: // i2l
stack.push2(new gLong(stack.pop()));
break;
case 0x86: // i2f
break;
case 0x87: // i2d
stack.push2(stack.pop());
break;
case 0x88: // l2i
stack.push(stack.pop2().toInt());
break;
case 0x89: // l2f
stack.push(utils.double2float(stack.pop2().toNumber()));
break;
case 0x8a: // l2d
stack.push2(stack.pop2().toNumber());
break;
case 0x8b: // f2i
stack.push(utils.double2int(stack.pop()));
break;
case 0x8c: // f2l
stack.push2(gLong.fromNumber(stack.pop()));
break;
case 0x8d: // f2d
stack.push2(stack.pop());
break;
case 0x8e: // d2i
stack.push(utils.double2int(stack.pop2()));
break;
case 0x8f: // d2l
stack.push2(utils.double2long(stack.pop2()));
break;
case 0x90: // d2f
stack.push(utils.double2float(stack.pop2()));
break;
case 0x91: // i2b
stack.push((stack.pop() << 24) >> 24);
break;
case 0x92: // i2c
stack.push(stack.pop() & 0xffff);
break;
case 0x93: // i2s
stack.push((stack.pop() << 16) >> 16);
break;
case 0xaa: // tableswitch
var startip = callee.ip;
while ((callee.ip & 3) != 0)
callee.ip++;
var def = callee.read32signed();
var low = callee.read32signed();
var high = callee.read32signed();
var val = stack.pop();
var jmp;
if (val < low || val > high) {
jmp = def;
} else {
callee.ip += (val - low) << 2;
jmp = callee.read32signed();
}
callee.ip = startip - 1 + jmp;
break;
case 0xab: // lookupswitch
var startip = callee.ip;
while ((callee.ip & 3) != 0)
callee.ip++;
var jmp = callee.read32signed();
var size = callee.read32();
var val = callee.stack.pop();
lookup:
for (var i=0; i<size; i++) {
var key = callee.read32signed();
var offset = callee.read32signed();
if (key === val) {
jmp = offset;
}
if (key >= val) {
break lookup;
}
}
callee.ip = startip - 1 + jmp;
break;
case 0xbc: // newarray
var type = callee.read8();
var size = stack.pop();
if (size < 0) {
callee.raiseException("java/lang/NegativeSizeException");
break;
}
stack.push(CLASSES.newPrimitiveArray(ARRAY_TYPE[type], size));
break;
case 0xbd: // anewarray
var idx = callee.read16();
var className = cp[cp[idx].name_index].bytes;
var size = stack.pop();
if (size < 0) {
callee.raiseException("java/lang/NegativeSizeException");
break;
}
stack.push(CLASSES.newArray(callee, className, size));
break;
case 0xc5: // multianewarray
var idx = callee.read16();
var typeName = cp[cp[idx].name_index].bytes;
var dimensions = callee.read8();
var lengths = new Array(dimensions);
for (var i=0; i<dimensions; i++)
lengths[i] = stack.pop();
stack.push(CLASSES.newMultiArray(callee, typeName, lengths));
break;
case 0xbe: // arraylength
stack.push(stack.pop().length);
break;
case 0xb4: // getfield
var idx = callee.read16();
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var obj = stack.pop();
if (!obj) {
callee.raiseException("java/lang/NullPointerException");
break;
}
var value = obj[fieldName];
if (typeof value === "undefined") {
value = util.defaultValue(cp[cp[cp[idx].name_and_type_index].signature_index].bytes);
}
stack.push(value);
break;
case 0xb5: // putfield
var idx = callee.read16();
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var val = stack.pop();
var obj = stack.pop();
if (!obj) {
callee.raiseException("java/lang/NullPointerException");
break;
}
obj[fieldName] = val;
break;
case 0xb2: // getstatic
var idx = callee.read16();
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
stack.push(CLASSES.getStaticField(callee, className, fieldName));
break;
case 0xb3: // putstatic
var idx = callee.read16();
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
CLASSES.setStaticField(callee, className, fieldName, stack.pop());
break;
case 0xbb: // new
var idx = callee.read16();
var className = cp[cp[idx].name_index].bytes;
stack.push(CLASSES.newObject(callee, className));
break;
case 0xc0: // checkcast
var idx = callee.read16();
var type = cp[cp[idx].name_index].bytes;
break;
case 0xc1: // instanceof
var idx = callee.read16();
var className = cp[cp[idx].name_index].bytes;
var obj = stack.pop();
stack.push(obj.class.className === className);
break;
case 0xbf: // athrow
callee.throw(stack.pop());
break;
case 0xc2: // monitorenter
var obj = stack.pop();
if (!obj) {
callee.raiseException("java/lang/NullPointerException");
break;
}
// if (obj.hasOwnProperty("$lock$")) {
// stack.push(obj);
// callee.ip--;
// SCHEDULER.yield();
// } else {
// obj["$lock$"] = "locked";
// }
break;
case 0xc3: // monitorexit
var obj = stack.pop();
if (!obj) {
callee.raiseException("java/lang/NullPointerException");
break;
}
// delete obj["$lock$"];
// SCHEDULER.yield();
break;
case 0xc4: // wide
break;
case 0xb6: // invokevirtual
case 0xb7: // invokespecial
case 0xb8: // invokestatic
case 0xb9: // invokeinterface
var idx = callee.read16();
if (op === 0xb9) {
var argsNumber = callee.read8();
var zero = callee.read8();
}
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var methodName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var signature = cp[cp[cp[idx].name_and_type_index].signature_index].bytes;
var classInfo = CLASSES.getClass(callee, className);
var method = CLASSES.getMethod(callee, classInfo, methodName, signature, op === 0xb8);
callee.invoke(op, method);
break;
case 0xb1: // return
callee.popFrame();
return;
case 0xac: // ireturn
case 0xae: // freturn
case 0xb0: // areturn
callee.popFrame().stack.push(callee.stack.pop());
return;
case 0xad: // lreturn
case 0xaf: // dreturn
callee.popFrame().stack.push2(callee.stack.pop2());
return;
default:
var opName = OPCODES[op];
throw new Error("Opcode " + opName + " [" + op + "] not supported.");
}
};
VM.execute(callee);
}

1
index.html
Просмотреть файл

@ -22,6 +22,7 @@
<script type="text/javascript" src="frame.js" defer></script>
<script type="text/javascript" src="thread.js" defer></script>
<script type="text/javascript" src="threads.js" defer></script>
<script type="text/javascript" src="vm.js" defer></script>
<script type="text/javascript" src="jvm.js" defer></script>
<script type="text/javascript" src="main.js" defer></script>
</head>

828
vm.js Normal file
Просмотреть файл

@ -0,0 +1,828 @@
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set shiftwidth=4 tabstop=4 autoindent cindent expandtab: */
'use strict';
var VM = {};
VM.execute = function(frame) {
var cp = frame.cp;
var stack = frame.stack;
while (true) {
var op = frame.read8();
// var x = [];
// frame.stack.forEach(function (e) { x.push(e.toSource()); });
// console.log(frame.methodInfo.classInfo.className, frame.methodInfo.name, frame.ip - 1, OPCODES[op], x.join(" "));
switch (op) {
case 0x00: // nop
break;
case 0x01: // aconst_null
stack.push(null);
break;
case 0x02: // aconst_m1
stack.push(-1);
break;
case 0x03: // iconst_0
case 0x0b: // fconst_0
case 0x0e: // dconst_0
stack.push(0);
break;
case 0x04: // iconst_1
case 0x0c: // fconst_1
case 0x0f: // dconst_1
stack.push(1);
break;
case 0x05: // iconst_2
case 0x0d: // fconst_2
stack.push(2);
break;
case 0x06: // iconst_3
stack.push(3);
break;
case 0x07: // iconst_4
stack.push(4);
break;
case 0x08: // iconst_5
stack.push(5);
break;
case 0x09: // lconst_0
stack.push2(gLong.fromInt(0));
break;
case 0x0a: // lconst_1
stack.push2(gLong.fromInt(1));
break;
case 0x10: // bipush
stack.push(frame.read8signed());
break;
case 0x11: // sipush
stack.push(frame.read16signed());
break;
case 0x12: // ldc
var constant = cp[frame.read8()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(CLASSES.newString(frame, cp[constant.string_index].bytes));
break;
default:
throw new Error("not support constant type");
}
break;
case 0x13: // ldc_w
var constant = cp[frame.read16()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(cp[constant.string_index].bytes);
break;
default:
throw new Error("not support constant type");
}
break;
case 0x14: // ldc2_w
var constant = cp[frame.read16()];
switch(constant.tag) {
case TAGS.CONSTANT_String:
stack.push(cp[constant.string_index].bytes);
break;
case TAGS.CONSTANT_Long:
stack.push2(Numeric.getLong(constant.bytes));
break;
case TAGS.CONSTANT_Double:
stack.push2(constant.bytes.readDoubleBE(0));
break;
default:
throw new Error("not support constant type");
}
break;
case 0x15: // iload
case 0x17: // fload
case 0x19: // aload
var idx = frame.isWide() ? frame.read16() : frame.read8();
stack.push(frame.getLocal(idx));
break;
case 0x16: // lload
case 0x18: // dload
var idx = frame.isWide() ? frame.read16() : frame.read8();
stack.push2(frame.getLocal(idx));
break;
case 0x1a: // iload_0
case 0x22: // fload_0
case 0x2a: // aload_0
stack.push(frame.getLocal(0));
break;
case 0x1b: // iload_1
case 0x23: // fload_1
case 0x2b: // aload_1
stack.push(frame.getLocal(1));
break;
case 0x1c: // iload_2
case 0x24: // fload_2
case 0x2c: // aload_2
stack.push(frame.getLocal(2));
break;
case 0x1d: // iload_3
case 0x25: // fload_3
case 0x2d: // aload_3
stack.push(frame.getLocal(3));
break;
case 0x1e: // lload_0
case 0x26: // dload_0
stack.push2(frame.getLocal(0));
break;
case 0x1f: // lload_1
case 0x27: // dload_1
stack.push2(frame.getLocal(1));
break;
case 0x20: // lload_2
case 0x28: // dload_2
stack.push2(frame.getLocal(2));
break;
case 0x21: // lload_3
case 0x29: // dload_3
stack.push2(frame.getLocal(3));
break;
case 0x2e: // iaload
case 0x30: // faload
case 0x32: // aaload
case 0x33: // baload
case 0x34: // caload
case 0x35: // saload
var idx = stack.pop();
var refArray = stack.pop();
if (!frame.checkArrayAccess(refArray, idx))
break;
stack.push(refArray[idx]);
break;
case 0x2f: // laload
case 0x31: // daload
var idx = stack.pop();
var refArray = stack.pop();
if (!frame.checkArrayAccess(refArray, idx))
break;
stack.push2(refArray[idx]);
break;
case 0x36: // istore
case 0x38: // fstore
case 0x3a: // astore
var idx = frame.isWide() ? frame.read16() : frame.read8();
frame.setLocal(idx, stack.pop());
break;
case 0x37: // lstore
case 0x39: // dstore
var idx = frame.isWide() ? frame.read16() : frame.read8();
frame.setLocal(idx, stack.pop2());
break;
case 0x3b: // istore_0
case 0x43: // fstore_0
case 0x4b: // astore_0
frame.setLocal(0, stack.pop());
break;
case 0x3c: // istore_1
case 0x44: // fstore_1
case 0x4c: // astore_1
frame.setLocal(1, stack.pop());
break;
case 0x3d: // istore_2
case 0x45: // fstore_2
case 0x4d: // astore_2
frame.setLocal(2, stack.pop());
break;
case 0x3e: // istore_3
case 0x46: // fstore_3
case 0x4e: // astore_3
frame.setLocal(3, stack.pop());
break;
case 0x3f: // lstore_0
case 0x47: // dstore_0
frame.setLocal(0, stack.pop2());
break;
case 0x40: // lstore_1
case 0x48: // dstore_1
frame.setLocal(1, stack.pop2());
break;
case 0x41: // lstore_2
case 0x49: // dstore_2
frame.setLocal(2, stack.pop2());
break;
case 0x42: // lstore_3
case 0x4a: // dstore_3
frame.setLocal(2, stack.pop2());
break;
case 0x4f: // iastore
case 0x51: // fastore
case 0x53: // aastore
case 0x54: // bastore
case 0x55: // castore
case 0x56: // sastore
var val = stack.pop();
var idx = stack.pop();
var refArray = stack.pop();
if (!frame.checkArrayAccess(refArray, idx))
break;
refArray[idx] = val;
break;
case 0x50: // lastore
case 0x52: // dastore
var val = stack.pop2();
var idx = stack.pop();
var refArray = stack.pop();
if (!frame.checkArrayAccess(refArray, idx))
break;
refArray[idx] = val;
break;
case 0x57: // pop
stack.pop();
break;
case 0x58: // pop2
stack.pop2();
break;
case 0x59: // dup
var val = stack.pop();
stack.push(val);
stack.push(val);
break;
case 0x5a: // dup_x1
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val1);
stack.push(val2);
stack.push(val1);
break;
case 0x5b: // dup_x2
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
stack.push(val1);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5c: // dup2
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val2);
stack.push(val1);
break;
case 0x5d: // dup2_x1
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5e: // dup2_x2
var val1 = stack.pop();
var val2 = stack.pop();
var val3 = stack.pop();
var val4 = stack.pop();
stack.push(val2);
stack.push(val1);
stack.push(val4);
stack.push(val3);
stack.push(val2);
stack.push(val1);
break;
case 0x5f: // swap
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val1);
stack.push(val2);
break;
case 0x84: // iinc
var wide = frame.isWide();
var idx = wide ? frame.read16() : frame.read8();
var val = wide ? frame.read16signed() : frame.read8signed();
frame.setLocal(idx, frame.getLocal(idx) + val);
break;
case 0x60: // iadd
stack.push((stack.pop() + stack.pop())|0);
break;
case 0x61: // ladd
stack.push2(stack.pop2().add(stack.pop2()));
break;
case 0x62: // fadd
stack.push(utils.double2float(stack.pop() + stack.pop()));
break;
case 0x63: // dadd
stack.push2(stack.pop2() + stack.pop2());
break;
case 0x64: // isub
stack.push((- stack.pop() + stack.pop())|0);
break;
case 0x65: // lsub
stack.push2(stack.pop2().add(stack.pop2()).negate());
break;
case 0x66: // fsub
stack.push(utils.double2float(- stack.pop() + stack.pop()));
break;
case 0x67: // dsub
stack.push2(- stack.pop2() + stack.pop2());
break;
case 0x68: // imul
stack.push(Math.imul(stack.pop(), stack.pop()));
break;
case 0x69: // lmul
stack.push2(stack.pop2().multiply(stack.pop2()));
break;
case 0x6a: // fmul
stack.push(utils.double2float(stack.pop() * stack.pop()));
break;
case 0x6b: // dmul
stack.push2(stack.pop2() * stack.pop2());
break;
case 0x6c: // idiv
var val1 = stack.pop();
var val2 = stack.pop();
if (!val1) {
frame.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push((val2 === utils.INT_MIN && val1 === -1) ? val2 : ((a / b)|0));
break;
case 0x6d: // ldiv
var val1 = stack.pop2();
var val2 = stack.pop2();
if (!val1.isZero()) {
frame.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push2(val2.div(val1));
break;
case 0x6e: // fdiv
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(utils.double2float(val2 / val1));
break;
case 0x6f: // ddiv
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2 / val1);
break;
case 0x70: // irem
var val1 = stack.pop();
var val2 = stack.pop();
if (!val1) {
frame.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push(val2 % val1);
break;
case 0x71: // lrem
var val1 = stack.pop2();
var val2 = stack.pop2();
if (val1.isZero()) {
frame.raiseException("java/lang/ArithmeticException", "/ by zero");
break;
}
stack.push2(val2.modulo(val1));
break;
case 0x72: // frem
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(utils.double2float(val2 % val1));
break;
case 0x73: // drem
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2 % val1);
break;
case 0x74: // ineg
stack.push((- stack.pop())|0);
break;
case 0x75: // lneg
stack.push2(stack.pop2().negate());
break;
case 0x76: // fneg
stack.push(- stack.pop());
break;
case 0x77: // dneg
stack.push2(- stack.pop2());
break;
case 0x78: // ishl
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 << val1);
break;
case 0x79: // lshl
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftLeft(val1));
break;
case 0x7a: // ishr
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 >> val1);
break;
case 0x7b: // lshr
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftRight(val1));
break;
case 0x7c: // iushr
var val1 = stack.pop();
var val2 = stack.pop();
stack.push(val2 >>> val1);
break;
case 0x7d: // lushr
var val1 = stack.pop2();
var val2 = stack.pop2();
stack.push2(val2.shiftRightUnsigned(val1));
break;
case 0x7e: // iand
stack.push(stack.pop() & stack.pop());
break;
case 0x7f: // land
stack.push2(stack.pop2().and(stack.pop2()));
break;
case 0x80: // ior
stack.push(stack.pop() | stack.pop());
break;
case 0x81: // lor
stack.push2(stack.pop2().or(stack.pop2()));
break;
case 0x82: // ixor
stack.push(stack.pop() ^ stack.pop());
break;
case 0x83: // lxor
stack.push2(stack.pop2().xor(stack.pop2()));
break;
case 0x94: // lcmp
var val1 = stack.pop2();
var val2 = stack.pop2();
if (val2.greaterThan(val1)) {
stack.push(1);
} else if (val2.lessThan(val1)) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x95: // fcmpl
var val1 = stack.pop();
var val2 = stack.pop();
if (isNaN(val1) || isNaN(val2)) {
stack.push(-1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x96: // fcmpg
var val1 = stack.pop();
var val2 = stack.pop();
if (isNaN(val1) || isNaN(val2)) {
stack.push(1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x97: // dcmpl
var val1 = stack.pop2();
var val2 = stack.pop2();
if (isNaN(val1) || isNaN(val2)) {
stack.push(-1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x98: // dcmpg
var val1 = stack.pop2();
var val2 = stack.pop2();
if (isNaN(val1) || isNaN(val2)) {
stack.push(1);
} else if (val2 > val1) {
stack.push(1);
} else if (val2 < val1) {
stack.push(-1);
} else {
stack.push(0);
}
break;
case 0x99: // ifeq
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() === 0 ? jmp : frame.ip;
break;
case 0x9a: // ifne
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() !== 0 ? jmp : frame.ip;
break;
case 0x9b: // iflt
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() < 0 ? jmp : frame.ip;
break;
case 0x9c: // ifge
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() >= 0 ? jmp : frame.ip;
break;
case 0x9d: // ifgt
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() > 0 ? jmp : frame.ip;
break;
case 0x9e: // ifle
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() <= 0 ? jmp : frame.ip;
break;
case 0x9f: // if_icmpeq
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() === stack.pop() ? jmp : frame.ip;
break;
case 0xa0: // if_cmpne
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() !== stack.pop() ? jmp : frame.ip;
break;
case 0xa1: // if_icmplt
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() > stack.pop() ? jmp : frame.ip;
break;
case 0xa2: // if_icmpge
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() <= stack.pop() ? jmp : frame.ip;
break;
case 0xa3: // if_icmpgt
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() < stack.pop() ? jmp : frame.ip;
break;
case 0xa4: // if_icmple
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() >= stack.pop() ? jmp : frame.ip;
break;
case 0xa5: // if_acmpeq
var jmp = frame.ip - 1 + calee.read16signed();
frame.ip = stack.pop() === stack.pop() ? jmp : frame.ip;
break;
case 0xa6: // if_acmpne
var jmp = frame.ip - 1 + frame.read16signed();
frame.ip = stack.pop() !== stack.pop() ? jmp : frame.ip;
break;
case 0xc6: // ifnull
var ref = stack.pop();
if (!ref)
frame.ip += frame.read16signed() - 1;
break;
case 0xc7: // ifnonnull
var ref = stack.pop();
if (!!ref)
frame.ip += frame.read16signed() - 1;
break;
case 0xa7: // goto
frame.ip += frame.read16signed() - 1;
break;
case 0xc8: // goto_w
frame.ip += frame.read32signed() - 1;
break;
case 0xa8: // jsr
var jmp = frame.read16();
stack.push(frame.ip);
frame.ip = jmp;
break;
case 0xc9: // jsr_w
var jmp = frame.read32();
stack.push(frame.ip);
frame.ip = jmp;
break;
case 0xa9: // ret
var idx = frame.isWide() ? frame.read16() : frame.read8();
frame.ip = frame.getLocal(idx);
break;
case 0x85: // i2l
stack.push2(new gLong(stack.pop()));
break;
case 0x86: // i2f
break;
case 0x87: // i2d
stack.push2(stack.pop());
break;
case 0x88: // l2i
stack.push(stack.pop2().toInt());
break;
case 0x89: // l2f
stack.push(utils.double2float(stack.pop2().toNumber()));
break;
case 0x8a: // l2d
stack.push2(stack.pop2().toNumber());
break;
case 0x8b: // f2i
stack.push(utils.double2int(stack.pop()));
break;
case 0x8c: // f2l
stack.push2(gLong.fromNumber(stack.pop()));
break;
case 0x8d: // f2d
stack.push2(stack.pop());
break;
case 0x8e: // d2i
stack.push(utils.double2int(stack.pop2()));
break;
case 0x8f: // d2l
stack.push2(utils.double2long(stack.pop2()));
break;
case 0x90: // d2f
stack.push(utils.double2float(stack.pop2()));
break;
case 0x91: // i2b
stack.push((stack.pop() << 24) >> 24);
break;
case 0x92: // i2c
stack.push(stack.pop() & 0xffff);
break;
case 0x93: // i2s
stack.push((stack.pop() << 16) >> 16);
break;
case 0xaa: // tableswitch
var startip = frame.ip;
while ((frame.ip & 3) != 0)
frame.ip++;
var def = frame.read32signed();
var low = frame.read32signed();
var high = frame.read32signed();
var val = stack.pop();
var jmp;
if (val < low || val > high) {
jmp = def;
} else {
frame.ip += (val - low) << 2;
jmp = frame.read32signed();
}
frame.ip = startip - 1 + jmp;
break;
case 0xab: // lookupswitch
var startip = frame.ip;
while ((frame.ip & 3) != 0)
frame.ip++;
var jmp = frame.read32signed();
var size = frame.read32();
var val = frame.stack.pop();
lookup:
for (var i=0; i<size; i++) {
var key = frame.read32signed();
var offset = frame.read32signed();
if (key === val) {
jmp = offset;
}
if (key >= val) {
break lookup;
}
}
frame.ip = startip - 1 + jmp;
break;
case 0xbc: // newarray
var type = frame.read8();
var size = stack.pop();
if (size < 0) {
frame.raiseException("java/lang/NegativeSizeException");
break;
}
stack.push(CLASSES.newPrimitiveArray(ARRAY_TYPE[type], size));
break;
case 0xbd: // anewarray
var idx = frame.read16();
var className = cp[cp[idx].name_index].bytes;
var size = stack.pop();
if (size < 0) {
frame.raiseException("java/lang/NegativeSizeException");
break;
}
stack.push(CLASSES.newArray(frame, className, size));
break;
case 0xc5: // multianewarray
var idx = frame.read16();
var typeName = cp[cp[idx].name_index].bytes;
var dimensions = frame.read8();
var lengths = new Array(dimensions);
for (var i=0; i<dimensions; i++)
lengths[i] = stack.pop();
stack.push(CLASSES.newMultiArray(frame, typeName, lengths));
break;
case 0xbe: // arraylength
stack.push(stack.pop().length);
break;
case 0xb4: // getfield
var idx = frame.read16();
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var obj = stack.pop();
if (!obj) {
frame.raiseException("java/lang/NullPointerException");
break;
}
var value = obj[fieldName];
if (typeof value === "undefined") {
value = util.defaultValue(cp[cp[cp[idx].name_and_type_index].signature_index].bytes);
}
stack.push(value);
break;
case 0xb5: // putfield
var idx = frame.read16();
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var val = stack.pop();
var obj = stack.pop();
if (!obj) {
frame.raiseException("java/lang/NullPointerException");
break;
}
obj[fieldName] = val;
break;
case 0xb2: // getstatic
var idx = frame.read16();
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
stack.push(CLASSES.getStaticField(frame, className, fieldName));
break;
case 0xb3: // putstatic
var idx = frame.read16();
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var fieldName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
CLASSES.setStaticField(frame, className, fieldName, stack.pop());
break;
case 0xbb: // new
var idx = frame.read16();
var className = cp[cp[idx].name_index].bytes;
stack.push(CLASSES.newObject(frame, className));
break;
case 0xc0: // checkcast
var idx = frame.read16();
var type = cp[cp[idx].name_index].bytes;
break;
case 0xc1: // instanceof
var idx = frame.read16();
var className = cp[cp[idx].name_index].bytes;
var obj = stack.pop();
stack.push(obj.class.className === className);
break;
case 0xbf: // athrow
frame.throw(stack.pop());
break;
case 0xc2: // monitorenter
var obj = stack.pop();
if (!obj) {
frame.raiseException("java/lang/NullPointerException");
break;
}
// if (obj.hasOwnProperty("$lock$")) {
// stack.push(obj);
// frame.ip--;
// SCHEDULER.yield();
// } else {
// obj["$lock$"] = "locked";
// }
break;
case 0xc3: // monitorexit
var obj = stack.pop();
if (!obj) {
frame.raiseException("java/lang/NullPointerException");
break;
}
// delete obj["$lock$"];
// SCHEDULER.yield();
break;
case 0xc4: // wide
break;
case 0xb6: // invokevirtual
case 0xb7: // invokespecial
case 0xb8: // invokestatic
case 0xb9: // invokeinterface
var idx = frame.read16();
if (op === 0xb9) {
var argsNumber = frame.read8();
var zero = frame.read8();
}
var className = cp[cp[cp[idx].class_index].name_index].bytes;
var methodName = cp[cp[cp[idx].name_and_type_index].name_index].bytes;
var signature = cp[cp[cp[idx].name_and_type_index].signature_index].bytes;
var classInfo = CLASSES.getClass(frame, className);
var method = CLASSES.getMethod(frame, classInfo, methodName, signature, op === 0xb8);
frame.invoke(op, method);
break;
case 0xb1: // return
frame.popFrame();
return;
case 0xac: // ireturn
case 0xae: // freturn
case 0xb0: // areturn
frame.popFrame().stack.push(frame.stack.pop());
return;
case 0xad: // lreturn
case 0xaf: // dreturn
frame.popFrame().stack.push2(frame.stack.pop2());
return;
default:
var opName = OPCODES[op];
throw new Error("Opcode " + opName + " [" + op + "] not supported.");
}
};
}