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// vgmul.vv vd, vs2
#include "zvk_ext_macros.h"
require_zvkg;
require(P.VU.vsew == 32);
require_egw_fits(128);
VI_ZVK_VD_VS2_EGU32x4_NOVM_LOOP(
{},
{
EGU32x4_t Y = vd; // Multiplier
EGU32x4_BREV8(Y);
EGU32x4_t H = vs2; // Multiplicand
EGU32x4_BREV8(H);
EGU32x4_t Z = {};
for (int bit = 0; bit < 128; bit++) {
if (EGU32x4_ISSET(Y, bit)) {
EGU32x4_XOREQ(Z, H);
}
bool reduce = EGU32x4_ISSET(H, 127);
EGU32x4_LSHIFT(H); // Lef shift by 1
if (reduce) {
H[0] ^= 0x87; // Reduce using x^7 + x^2 + x^1 + 1 polynomial
}
}
EGU32x4_BREV8(Z);
vd = Z;
}
);
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