Package envi :: Class Operand

Class Operand

Known Subclasses:

Thses are the expected methods needed by any implemented operand object attached to an envi Opcode. This does *not* have a constructor of it's pwn on purpose to cut down on memory use and constructor CPU cost.

Instance Methods

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__eq__(self, oper)

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__ne__(self, op)

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getOperAddr(self, op, emu)
If the operand is a "dereference" operand, this method should use the specified op/emu to resolve the address of the dereference.

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getOperValue(self, op, emu=None)
Get the current value for the operand.

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isDeref(self)
If the given operand will dereference memory, this method must return True.

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isImmed(self)
If the given operand represents an immediate value, this must return True.

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isReg(self)
If the given operand represents a register value, this must return True.

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render(self, mcanv, op, idx)
Used by the opcode class when rendering to a memory canvas.

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repr(self, op)
Used by the Opcode class to get a humon readable string for this operand.

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setOperValue(self, op, emu, val)
Set the current value for the operand.

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Method Details

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getOperAddr(self, op, emu)

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If the operand is a "dereference" operand, this method should use the
specified op/emu to resolve the address of the dereference.

NOTE: This API may be passed a None emu and should return what it can
      (or None if it can't be resolved)

getOperValue(self, op, emu=None)

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Get the current value for the operand.  If needed, use
the given emulator/workspace/trace to resolve things like
memory and registers.

NOTE: This API may be passed a None emu and should return what it can
      (or None if it can't be resolved)

setOperValue(self, op, emu, val)

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Set the current value for the operand. If needed, use the given emulator/workspace/trace to assign things like memory and registers.