fpneg_abs_mul - 2022.2 English

Vitis Tutorials: AI Engine Development

Document ID
XD100
Release Date
2022-12-01
Version
2022.2 English

Only for real arguments. Signature is identical to fpmul:

v8float fpneg_mul(v32float xbuf, int xstart, unsigned int xoffs, v8float zbuf, int zstart, unsigned int zoffs)

It returns the opposite value of the product:

for (i = 0 ; i < 8 ; i++)
  ret[i] =  - xbuf[xstart + xoffs[i]] * zbuf[zstart + zoffs[i]]