This repository contains a low-level implementation for basic vector operations on 64-bit fixed-point numbers for personal training purposes. The implementation aims to be executable on a 32-bit architecture by splitting the 64-bit numbers into two registers each and executing the operations including the carry bit. Parameters are passed via the stack by concatenating the edx and eax registers; results are also returned in edx:eax.
fix_add.asm
Fixed-point addition.
fix_sub.asm
Fixed-point subtraction.
fix_mul.asm
Fixed-point multiplication.
fix_vec_add.asm
Fixed-point vector addition. The first two parameters are the addresses of the vectors to be added. The result of the addition is stored in the third vector (address passed over the stack).
fix_vec_sub.asm
Fixed-point vector subtraction. The first two parameters are the addresses of the vectors to be subtracted. The result of the subtraction is stored in the third vector (address passed over the stack).
fix_vec_dot.asm
Fixed-point scalar product. The addresses of both vectors are passed as parameters over the stack.
fix_vec_cross.asm
Fixed-point cross product. The addresses of both vectors are passed as parameters over the stack. The result of the cross product is stored in the third vector (address passed over the stack).