gef-pprint-register

gef extension to print register "prettier", including SIMD registers pretty-print and casting to primitive data types.

NOTE:

Make sure append set print repeats 64 to your .gdbinit file, to fetch (up to zmm) registers. Repeat count must be 128 or more, if you use 1024-bit or more registers XD

Concepts

Viewing specific register's bytes into format.

Format example: rez $ymm0[23:16]:u8

Indexing and slicing

Both slicing and indexing are available with the index of byte.

Default endianess and slicing is Little endian, whole size of register.

Indexing

Index are ordered with Little Endian. For example, rez $ymm0[31] will return the most significant byte of 256-bit (32-byte) ymm register.

Slicing

You can explicitly give the endianess by 'start' and 'stop' of slice.

• start < stop will format by Big Endian.
• start > stop will format by Little Endian.

Available Formats

Using larger bit type on smaller bit array might result in

Integer

• u8, u16, u32 ... u512: format to unsigned decimal integer format.
• d8, d16, d32 ... d512: format to signed decimal integer format.
• b/o/x8, b/o/x16 ... b/o/x512: format to binary / octal / hexadecimal format.

Floating points

• f32, f64 are available, as float and double

Character and Strings

• c: ASCII / ISO 8859-1 (Latin-1) size, by byte.