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List of Claripy Operations

Arithmetic and Logic

Name

Description

Example

LShR

Logically shifts an expression to the right. (the default shifts are arithmetic)

`x.LShR(10)`

RotateLeft

Rotates an expression left

`x.RotateLeft(8)`

RotateRight

Rotates an expression right

`x.RotateRight(8)`

And

Logical And (on boolean expressions)

`solver.And(x == y, x > 0)`

Or

Logical Or (on boolean expressions)

`solver.Or(x == y, y < 10)`

Not

Logical Not (on a boolean expression)

`solver.Not(x == y)`

is the same as `x != y`

If

An If-then-else

Choose the maximum of two expressions:

`solver.If(x > y, x, y)`

ULE

Unsigned less than or equal to

Check if x is less than or equal to y:

`x.ULE(y)`

ULT

Unsigned less than

Check if x is less than y:

`x.ULT(y)`

UGE

Unsigned greater than or equal to

Check if x is greater than or equal to y:

`x.UGE(y)`

UGT

Unsigned greater than

Check if x is greater than y:

`x.UGT(y)`

SLE

Signed less than or equal to

Check if x is less than or equal to y:

`x.SLE(y)`

SLT

Signed less than

Check if x is less than y:

`x.SLT(y)`

SGE

Signed greater than or equal to

Check if x is greater than or equal to y:

`x.SGE(y)`

SGT

Signed greater than

Check if x is greater than y:

`x.SGT(y)`

TODO: Add the floating point ops

Bitvector Manipulation

Name

Description

Example

SignExt

Pad a bitvector on the left with

`n`

sign bits`x.sign_extend(n)`

ZeroExt

Pad a bitvector on the left with

`n`

zero bits`x.zero_extend(n)`

Extract

Extracts the given bits (zero-indexed from the *right*, inclusive) from an expression.

Extract the least significant byte of x:

`x[7:0]`

Concat

Concatenates any number of expressions together into a new expression.

`x.concat(y, ...)`

Extra Functionality

There's a bunch of prepackaged behavior that you *could* implement by analyzing the ASTs and composing sets of operations, but here's an easier way to do it:

- You can chop a bitvector into a list of chunks of
`n`

bits with`val.chop(n)`

- You can endian-reverse a bitvector with
`x.reversed`

- You can get the width of a bitvector in bits with
`val.length`

- You can test if an AST has any symbolic components with
`val.symbolic`

- You can get a set of the names of all the symbolic variables implicated in the construction of an AST with
`val.variables`

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Outline

Arithmetic and Logic

Bitvector Manipulation

Extra Functionality