Module pychrysalide.arch.instructions
Documentation
This module contains implementations for most basic instructions.
Basic instructions include non executable instructions such as RawInstruction, used for managing raw bytes in a binary content.
Classes
Class RawInstruction
The RawInstruction object handles data which is not (yet?) disassembled as code in a binary.
Raw values pointed by this kind of instruction can be immediate values or strings.
Instances can be created using one of the following constructors:
RawInstruction(addr, size, value=int)
RawInstruction(addr, size, content=object, count=int, endian=int)
Where addr is always a location defined by a vmpa object and size is a MemoryDataSize constant defining the size of the read immediate value(s).
In the first case, value is used to build an immediate operand for the instruction.
In the second case, content is a BinContent instance, count states how many items belong to the array and endian is a SourceEndian constant defining the byte order used to read values.
Hierarchy
builtins.object ╰── gi._gi.GObject ╰── pychrysalide.arch.ArchInstruction ╰── pychrysalide.arch.instructions.RawInstruction
Implements:
Attributes
padding
Report if the instruction is seen as padding.
string
Report if the instruction is seen as a string.
Constants
RawInstrFlag
Flags for some instruction properties.
They can be seen as an extension of ArchInstrFlag
| 16 | = 0x10 |
| 32 | = 0x20 |
Class UndefInstruction
UndefInstruction represents all kinds of instructions which are officially not part of a runnable instruction set.
Instances can be created using the following constructor:
UndefInstruction(behavior)
Where behavior is a ExpectedBehavior constant describing the state of the CPU once the instruction is run.
Hierarchy
builtins.object ╰── gi._gi.GObject ╰── pychrysalide.arch.ArchInstruction ╰── pychrysalide.arch.instructions.UndefInstruction
Implements:
Attributes
behavior
Consequence carried by the undefined instruction.
The result is provided as a ExpectedBehavior constant.
Constants
ExpectedBehavior
List of possible behaviors of undefined instructions.
| 0 | = 0 |
| 1 | = 1 |
| 2 | = 2 |
| 3 | = 3 |