IRegisterData
| com.pnfsoftware.jeb.core.units.code.asm.processor.IRegisterData |
 Known Indirect Subclasses
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Class Overview
Processor registers data, consisting of a register bank and their values.
Summary
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| abstract IRegisterBank |
getBank()
Get the layout used by this register bank.
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| abstract int |
getBitsize(int regnum)
Get the register size in bits.
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| abstract Endianness |
getEndianness()
Get the byte ordering used by the registers of this bank.
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| abstract long |
getFlags()
This convenience method returns the value of the general purpose flag.
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| abstract String |
getName(int regnum)
Get the common name of a register.
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| abstract long |
getProgramCounter()
This convenience method returns the value of the program counter register.
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| abstract byte[] |
getValue(int regnum)
Get the binary value of a register.
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| abstract Long |
getValueAsLong(int regnum)
Get the value of a register that does not exceed 64 bits, as a long, using the bank's set
byte ordering.
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| abstract boolean |
setValue(int regnum, byte[] bytes)
Set the binary value of a register.
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| abstract boolean |
setValueAsLong(int regnum, long value)
Set the value of a register, if it does not exceed 64 bits.
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| abstract int |
size()
Retrieve the number of registers defined in the layout used by this register bank.
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Public Methods
public abstract IRegisterBank getBank ()
Get the layout used by this register bank.
Returns
- non-null layout
public abstract int getBitsize (int regnum)
Get the register size in bits. Convenience method.
Parameters
| regnum | register number |
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public abstract Endianness getEndianness ()
Get the byte ordering used by the registers of this bank.
Returns
- non-null endianness
public abstract long getFlags ()
This convenience method returns the value of the general purpose flag. Which register(s) that value maps to is processor-dependent.
Returns
- the flags value
Throws
| CannotReadRegisterException | on error |
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public abstract String getName (int regnum)
Get the common name of a register. Convenience method.
Parameters
| regnum | register number |
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public abstract long getProgramCounter ()
This convenience method returns the value of the program counter register. The value should be interpreted as an unsigned 64-bit integer.
Returns
- the PC value
Throws
| CannotReadRegisterException | on error |
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public abstract byte[] getValue (int regnum)
Get the binary value of a register. This method returns null if the value is not available. The bytes are laid out in the target processor byte order.
Note: If the register size is not a multiple of 8, the resulting integer value should be masked to discard the irrelevant upper bits.
Parameters
| regnum | register number |
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Returns
- raw bytes (regardless of byte ordering); null if no value was set for the register
public abstract Long getValueAsLong (int regnum)
Get the value of a register that does not exceed 64 bits, as a long, using the bank's set byte ordering.
Parameters
| regnum | register number |
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Returns
- null on error (eg, no value set for given register, value does not fit on 64-bit)
public abstract boolean setValue (int regnum, byte[] bytes)
Set the binary value of a register.
Parameters
| regnum | register number |
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| bytes | raw bytes (regardless of byte ordering) |
Returns
- success indicator
public abstract boolean setValueAsLong (int regnum, long value)
Set the value of a register, if it does not exceed 64 bits.
Parameters
| regnum | register number |
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| value | register value |
Returns
- success indicator
public abstract int size ()
Retrieve the number of registers defined in the layout used by this register bank. Convenience method.