Fennel: PointerSub< PTR_TYPE > Class Template Reference (original) (raw)
Increases length by op2, which may be completely invalid. More...
#include <[PointerPointerInstruction.h](PointerPointerInstruction%5F8h-source.html)>
Inheritance diagram for PointerSub< PTR_TYPE >:
| Public Member Functions | |
|---|---|
| PointerSub (RegisterRef< PTR_TYPE > *result, RegisterRef< PTR_TYPE > *op1, RegisterRef< PointerOperandT > *op2, StandardTypeDescriptorOrdinal pointerType) | |
| virtual | ~PointerSub () |
| virtual void | exec (TProgramCounter &pc) const |
| void | describe (string &out, bool values) const |
| Static Public Member Functions | |
| static const char * | longName () |
| static const char * | shortName () |
| static int | numArgs () |
| static InstructionSignature | signature (StandardTypeDescriptorOrdinal type) |
| static Instruction * | create (InstructionSignature const &sig) |
| Protected Member Functions | |
| void | describeHelper (string &out, bool values, const char *longName, const char *shortName, RegisterReference *result, RegisterReference *op1, RegisterReference *op2) const |
| Static Protected Member Functions | |
| static vector< StandardTypeDescriptorOrdinal > | regDesc (uint sizetArgs1, uint ptrArgs, StandardTypeDescriptorOrdinal type, uint operandArgs2) |
| Protected Attributes | |
| RegisterRef< PTR_TYPE > * | mResult |
| RegisterRef< PTR_TYPE > * | mOp1 |
| RegisterRef< OP2T > * | mOp2 |
| StandardTypeDescriptorOrdinal | mPointerType |
| Friends | |
| class | fennel::Calculator |
Detailed Description
template<typename PTR_TYPE>
class PointerSub< PTR_TYPE >
Increases length by op2, which may be completely invalid.
Reset with PointerPutSize.
Will only increase length to at most op1->cbStorage length to avoid needless invariant breakage.
Definition at line 199 of file PointerPointerInstruction.h.
Constructor & Destructor Documentation
Member Function Documentation
Implements Instruction.
Definition at line 218 of file PointerPointerInstruction.h.
References RegisterRef< TMPLT >::isNull(), RegisterRef< TMPLT >::length(), PointerPointerInstruction< PTR_TYPE, OP2T >::mOp1, PointerPointerInstruction< PTR_TYPE, OP2T >::mOp2, PointerPointerInstruction< PTR_TYPE, OP2T >::mResult, RegisterRef< TMPLT >::pointer(), RegisterRef< TMPLT >::storage(), RegisterRef< TMPLT >::toNull(), and RegisterRef< TMPLT >::value().
00218 {
00219 pc++;
00220 if (PointerPointerInstruction<
00221 PTR_TYPE, PointerOperandT>::mOp1->isNull() ||
00222 PointerPointerInstruction<
00223 PTR_TYPE, PointerOperandT>::mOp2->isNull()) {
00224 PointerPointerInstruction<
00225 PTR_TYPE, PointerOperandT>::mResult->toNull();
00226 PointerPointerInstruction<
00227 PTR_TYPE, PointerOperandT>::mResult->length(0);
00228 } else {
00229
00230
00231
00232 uint newLength =
00233 PointerPointerInstruction<
00234 PTR_TYPE, PointerOperandT>::mOp1->length() +
00235 PointerPointerInstruction<
00236 PTR_TYPE, PointerOperandT>::mOp2->value();
00237 uint maxLength =
00238 PointerPointerInstruction<
00239 PTR_TYPE, PointerOperandT>::mOp1->storage();
00240 if (newLength > maxLength) {
00241 newLength = maxLength;
00242 }
00243 PointerPointerInstruction<
00244 PTR_TYPE, PointerOperandT>::mResult->pointer(
00245 static_cast(
00246 PointerPointerInstruction<
00247 PTR_TYPE, PointerOperandT>::mOp1->pointer()) -
00248 PointerPointerInstruction<
00249 PTR_TYPE, PointerOperandT>::mOp2->value(),
00250 newLength);
00251 }
00252 }
template<typename PTR_TYPE>
| static const char* PointerSub< PTR_TYPE >::longName | ( | | ) | [inline, static] | | ----------------------------------------------------------------------------- | - | | - | ------------------ |
template<typename PTR_TYPE>
| static const char* PointerSub< PTR_TYPE >::shortName | ( | | ) | [inline, static] | | ------------------------------------------------------------------------------ | - | | - | ------------------ |
template<typename PTR_TYPE>
| static int PointerSub< PTR_TYPE >::numArgs | ( | | ) | [inline, static] | | ------------------------------------------------------------------- | - | | - | ------------------ |
template<typename PTR_TYPE>
| void PointerSub< PTR_TYPE >::describe | ( | string & | out, |
|---|---|---|---|
| bool | values | ||
| ) | const [inline, virtual] |
Definition at line 68 of file Instruction.h.
References RegisterReference::isNull(), RegisterReference::isValid(), RegisterReference::toString(), and RegisterReference::valueToString().
Referenced by PointerToNull< PTR_TYPE >::describe(), PointerRef< PTR_TYPE >::describe(), PointerMove< PTR_TYPE >::describe(), PointerSub< PTR_TYPE >::describe(), PointerAdd< PTR_TYPE >::describe(), PointerPutSize< PTR_TYPE >::describe(), NativeToNull< TMPLT >::describe(), NativeRef< TMPLT >::describe(), NativeMove< TMPLT >::describe(), NativeRound< TMPLT >::describe(), NativeNeg< TMPLT >::describe(), NativeDiv< TMPLT >::describe(), NativeMul< TMPLT >::describe(), NativeSub< TMPLT >::describe(), NativeAdd< TMPLT >::describe(), PointerGetMaxSize< PTR_TYPE >::describe(), PointerGetSize< PTR_TYPE >::describe(), IntegralNativeShiftRight< TMPLT >::describe(), IntegralNativeShiftLeft< TMPLT >::describe(), IntegralNativeOr< TMPLT >::describe(), IntegralNativeAnd< TMPLT >::describe(), IntegralNativeMod< TMPLT >::describe(), CastCast< RESULT_T, SOURCE_T >::describe(), BoolPointerIsNotNull< PTR_TYPE >::describe(), BoolPointerIsNull< PTR_TYPE >::describe(), BoolPointerLessEqual< PTR_TYPE >::describe(), BoolPointerLess< PTR_TYPE >::describe(), BoolPointerGreaterEqual< PTR_TYPE >::describe(), BoolPointerGreater< PTR_TYPE >::describe(), BoolPointerNotEqual< PTR_TYPE >::describe(), BoolPointerEqual< PTR_TYPE >::describe(), BoolNativeIsNotNull< TMPLT >::describe(), BoolNativeIsNull< TMPLT >::describe(), BoolNativeLessEqual< TMPLT >::describe(), BoolNativeLess< TMPLT >::describe(), BoolNativeGreaterEqual< TMPLT >::describe(), BoolNativeGreater< TMPLT >::describe(), BoolNativeNotEqual< TMPLT >::describe(), BoolNativeEqual< TMPLT >::describe(), BoolToNull::describe(), BoolIsNotNull::describe(), BoolIsNull::describe(), BoolLessEqual::describe(), BoolLess::describe(), BoolGreaterEqual::describe(), BoolGreater::describe(), BoolNotEqual::describe(), BoolEqual::describe(), BoolIsNot::describe(), BoolIs::describe(), BoolRef::describe(), BoolMove::describe(), BoolNot::describe(), BoolAnd::describe(), and BoolOr::describe().
00076 {
00077 out = longName;
00078 out += ": ";
00079 out += result->toString();
00080 if (values) {
00081 out += " ( ";
00082 if (result->isNull()) {
00083 out += "NULL";
00084 } else {
00085 out += result->valueToString();
00086 }
00087 out += " ) ";
00088 }
00089 out += " = ";
00090
00091 if (!op2 || !op2->isValid()) {
00092 out += " ";
00093 out += shortName;
00094 out += " ";
00095 }
00096 if (op1 && op1->isValid()) {
00097 out += op1->toString();
00098 if (values) {
00099 out += " ( ";
00100 if (op1->isNull()) {
00101 out += "NULL";
00102 } else {
00103 out += op1->valueToString();
00104 }
00105 out += " ) ";
00106 }
00107 }
00108 if (op2 && op2->isValid()) {
00109 out += " ";
00110 out += shortName;
00111 out += " ";
00112 out += op2->toString();
00113 if (values) {
00114 out += " ( ";
00115 if (op2->isNull()) {
00116 out += "NULL";
00117 } else {
00118 out += op2->valueToString();
00119 }
00120 out += " ) ";
00121 }
00122 }
00123 }
Friends And Related Function Documentation
friend class fennel::Calculator [friend, inherited]
Member Data Documentation
template<typename PTR_TYPE, typename OP2T>
template<typename PTR_TYPE, typename OP2T>
template<typename PTR_TYPE, typename OP2T>
template<typename PTR_TYPE, typename OP2T>
The documentation for this class was generated from the following file:
- /home/pub/open/dev/fennel/calculator/PointerPointerInstruction.h
Generated on Mon Jun 22 04:00:40 2009 for Fennel by 
1.5.1