This commit is contained in:
Joel Dice 2007-05-29 18:08:10 -06:00
parent 9076e2fbfa
commit 81c0e507f7
2 changed files with 374 additions and 28 deletions

View File

@ -49,6 +49,7 @@
(type frame
(object code)
(object next)
(uint32_t ip)
(uint32_t stackBase)
(array object locals))

View File

@ -1,10 +1,10 @@
namespace {
object
run(Thread* t)
{
unsigned ip = 0;
unsigned parameterCount = 0;
#define PUSH(x) t->stack[(t->sp)++] = x
#define POP(x) x = t->stack[--(t->sp)]
@ -99,15 +99,17 @@ run(Thread* t)
}
} goto loop;
case areturn: {
object value; POP(value);
if (t->sp) {
POP(t->frame);
case areturn:
case ireturn:
case lreturn: {
t->frame = frameNext(t->frame);
if (t->frame) {
t->code = frameCode(t->frame);
ip = frameIp(t->frame);
PUSH(value);
goto loop;
} else {
object value; POP(value);
t->code = 0;
return value;
}
} goto loop;
@ -122,27 +124,37 @@ run(Thread* t)
}
} UNREACHABLE;
case astore: {
case astore:
case istore:
case lstore: {
object value; POP(value);
set(t, frameBody(t->frame)[codeBody(t->code)[ip++]], value);
} goto loop;
case astore_0: {
case astore_0:
case istore_0:
case lstore_0: {
object value; POP(value);
set(t, frameBody(t->frame)[0], value);
} goto loop;
case astore_1: {
case astore_1:
case istore_1:
case lstore_1: {
object value; POP(value);
set(t, frameBody(t->frame)[1], value);
} goto loop;
case astore_2: {
case astore_2:
case istore_2:
case lstore_2: {
object value; POP(value);
set(t, frameBody(t->frame)[2], value);
} goto loop;
case astore_3: {
case astore_3:
case istore_3:
case lstore_3: {
object value; POP(value);
set(t, frameBody(t->frame)[3], value);
} goto loop;
@ -375,12 +387,10 @@ run(Thread* t)
if (t->exception) goto throw_;
if (not classInitialized(fieldClass(field))) {
frameIp(t->frame) = ip - 3;
PUSH(t->frame);
t->code = classInitializer(fieldClass(field));
t->frame = makeFrame(t, t->code);
ip = 0;
ip -= 3;
parameterCount = 0;
goto invoke;
}
PUSH(getStatic(field));
@ -709,24 +719,29 @@ run(Thread* t)
frameBody(t->frame)[index] = makeInt(t, v + c);
} goto loop;
case iload: {
PUSH(makeInt(t, intValue(frameBody(t->frame)[codeBody(t->code)[ip++]])));
case iload:
case lload: {
PUSH(frameBody(t->frame)[codeBody(t->code)[ip++]]);
} goto loop;
case iload_0: {
PUSH(makeInt(t, intValue(frameBody(t->frame)[0])));
case iload_0:
case lload_0: {
PUSH(frameBody(t->frame)[0]);
} goto loop;
case iload_1: {
PUSH(makeInt(t, intValue(frameBody(t->frame)[1])));
case iload_1:
case lload_1: {
PUSH(frameBody(t->frame)[1]);
} goto loop;
case iload_2: {
PUSH(makeInt(t, intValue(frameBody(t->frame)[2])));
case iload_2:
case lload_2: {
PUSH(frameBody(t->frame)[2]);
} goto loop;
case iload_3: {
PUSH(makeInt(t, intValue(frameBody(t->frame)[3])));
case iload_3:
case lload_3: {
PUSH(frameBody(t->frame)[3]);
} goto loop;
case imul: {
@ -763,12 +778,342 @@ run(Thread* t)
} goto loop;
case invokeinterface: {
// todo
uint8_t index1 = codeBody(t->code)[ip++];
uint8_t index2 = codeBody(t->code)[ip++];
uint16_t index = (index1 << 8) | index2;
ip += 2;
object method = resolveMethod(t, codePool(t->code), index);
if (t->exception) goto throw_;
parameterCount = methodParameterCount(method);
if (t->stack[t->sp - parameterCount]) {
t->code = methodCode
(findInterfaceMethod(t, method, t->stack[t->sp - parameterCount]));
if (t->exception) goto throw_;
goto invoke;
} else {
t->exception = makeNullPointerException(t, 0);
goto throw_;
}
} goto loop;
case invokespecial: {
uint8_t index1 = codeBody(t->code)[ip++];
uint8_t index2 = codeBody(t->code)[ip++];
uint16_t index = (index1 << 8) | index2;
object method = resolveMethod(t, codePool(t->code), index);
if (t->exception) goto throw_;
parameterCount = methodParameterCount(method);
if (t->stack[t->sp - parameterCount]) {
if (isSpecialMethod(method, t->stack[t->sp - parameterCount])) {
t->code = methodCode
(findSpecialMethod(t, method, t->stack[t->sp - parameterCount]));
if (t->exception) goto throw_;
} else {
t->code = methodCode(method);
}
goto invoke;
} else {
t->exception = makeNullPointerException(t, 0);
goto throw_;
}
} goto loop;
case invokestatic: {
uint8_t index1 = codeBody(t->code)[ip++];
uint8_t index2 = codeBody(t->code)[ip++];
uint16_t index = (index1 << 8) | index2;
object method = resolveMethod(t, codePool(t->code), index);
if (t->exception) goto throw_;
if (not classInitialized(methodClass(method))) {
t->code = classInitializer(methodClass(method));
ip -= 2;
parameterCount = 0;
goto invoke;
}
parameterCount = methodParameterCount(method);
t->code = methodCode(method);
} goto invoke;
case invokevirtual: {
uint8_t index1 = codeBody(t->code)[ip++];
uint8_t index2 = codeBody(t->code)[ip++];
uint16_t index = (index1 << 8) | index2;
object method = resolveMethod(t, codePool(t->code), index);
if (t->exception) goto throw_;
parameterCount = methodParameterCount(method);
if (t->stack[t->sp - parameterCount]) {
t->code = methodCode
(findVirtualMethod(t, method, t->stack[t->sp - parameterCount]));
if (t->exception) goto throw_;
goto invoke;
} else {
t->exception = makeNullPointerException(t, 0);
goto throw_;
}
} goto loop;
case ior: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) | intValue(b)));
} goto loop;
case irem: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) % intValue(b)));
} goto loop;
case ishl: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) << intValue(b)));
} goto loop;
case ishr: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) >> intValue(b)));
} goto loop;
case isub: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) - intValue(b)));
} goto loop;
case iushr: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, static_cast<uint32_t>(intValue(a)) >> intValue(b)));
} goto loop;
case ixor: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, intValue(a) ^ intValue(b)));
} goto loop;
case jsr: {
uint8_t offset1 = codeBody(t->code)[ip++];
uint8_t offset2 = codeBody(t->code)[ip++];
PUSH(makeInt(ip));
ip = (ip - 1) + ((offset1 << 8) | offset2);
} goto loop;
case jsr_w: {
uint8_t offset1 = codeBody(t->code)[ip++];
uint8_t offset2 = codeBody(t->code)[ip++];
uint8_t offset3 = codeBody(t->code)[ip++];
uint8_t offset4 = codeBody(t->code)[ip++];
PUSH(makeInt(ip));
ip = (ip - 1)
+ ((offset1 << 24) | (offset2 << 16) | (offset3 << 8) | offset4);
} goto loop;
case l2i: {
object v; POP(v);
PUSH(makeInt(t, static_cast<int32_t>(longValue(v))));
} goto loop;
case ladd: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) + longValue(b)));
} goto loop;
case laload: {
object index; POP(index);
object array; POP(array);
if (array) {
int32_t i = intValue(index);
if (i >= 0 and i < longArrayLength(array)) {
PUSH(makeLong(t, longArrayBody(array)[i]));
} else {
object message = makeString(t, "%d not in [0,%d]", i,
longArrayLength(array));
t->exception = makeArrayIndexOutOfBoundsException(t, message);
goto throw_;
}
} else {
t->exception = makeNullPointerException(t, 0);
goto throw_;
}
} goto loop;
case land: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) & longValue(b)));
} goto loop;
case lastore: {
object value; POP(value);
object index; POP(index);
object array; POP(array);
int32_t i = intValue(index);
if (array) {
if (i >= 0 and i < longArrayLength(array)) {
longArrayBody(array)[i] = longValue(value);
} else {
object message = makeString(t, "%d not in [0,%d]", i,
longArrayLength(array));
t->exception = makeArrayIndexOutOfBoundsException(t, message);
goto throw_;
}
} else {
t->exception = makeNullPointerException(t, 0);
goto throw_;
}
} goto loop;
case lcmp: {
object b; POP(b);
object a; POP(a);
PUSH(makeInt(t, longValue(a) > longValue(b) ? 1
: longValue(a) == longValue(b) ? 0 : -1));
} goto loop;
case lconst_0: {
PUSH(makeLong(0));
} goto loop;
case lconst_1: {
PUSH(makeLong(1));
} goto loop;
case ldc: {
PUSH(codePool(t->code)[codeBody(t->code)[ip++]]);
} goto loop;
case ldc_w:
case ldc2_w: {
uint8_t index1 = codeBody(t->code)[ip++];
uint8_t index2 = codeBody(t->code)[ip++];
PUSH(codePool(t->code)[codeBody(t->code)[(offset1 << 8) | offset2]]);
} goto loop;
case ldiv: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) / longValue(b)));
} goto loop;
case lmul: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) * longValue(b)));
} goto loop;
case lneg: {
object v; POP(v);
PUSH(makeLong(t, - longValue(v)));
} goto loop;
case lor: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) | longValue(b)));
} goto loop;
case lrem: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) % longValue(b)));
} goto loop;
case lshl: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) << longValue(b)));
} goto loop;
case lshr: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) >> longValue(b)));
} goto loop;
case lsub: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) - longValue(b)));
} goto loop;
case lushr: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, static_cast<uint64_t>(longValue(a)) << longValue(b)));
} goto loop;
case lxor: {
object b; POP(b);
object a; POP(a);
PUSH(makeLong(t, longValue(a) ^ longValue(b)));
} goto loop;
case multianewarray: {
// tbc
} goto loop;
default: UNREACHABLE;
}
invoke:
if (codeMaxStack(t->code) + t->sp - parameterCount > Thread::StackSize) {
t->exception = makeStackOverflowException(t, 0);
goto throw_;
}
frameIp(t->frame) = ip;
t->frame = makeFrame(t, t->code, t->frame);
memcpy(frameLocals(t->frame),
t->stack + t->sp - parameterCount,
parameterCount);
t->sp -= parameterCount;
ip = 0;
goto loop;
throw_:
for (; t->frame; t->frame = frameNext(t->frame)) {
t->code = frameCode(t->frame);