Beginning x64 Assembly Programming: From Novice to AVX Professional

© Jo Van Hoey 2019

J. Van HoeyBeginning x64 Assembly Programminghttps://doi.org/10.1007/978-1-4842-5076-1_36

36. AVX Matrix Operations

Jo Van Hoey¹ 

(1)

Hamme, Belgium

 

Instead of summing up a number of possibly interesting AVX instructions, let’s look at some matrix operations using AVX. This is a long chapter with several pages of code; a lot will be familiar, but we will introduce several new instructions here.

We will show matrix multiplication and matrix inversion. In the next chapter, we will show how to transpose a matrix.

Example Matrix Code

Listing 36-1 shows the example code.

; matrix4x4.asm

extern printf

section .data

      fmt0   db    10,"4x4 DOUBLE PRECISION FLOATING POINT MATRICES",10,0

      fmt1   db    10,"This is matrixA:",10,0

      fmt2   db    10,"This ...