diff options
Diffstat (limited to 'src/devices/cpu/rsp/vmul.h')
-rw-r--r-- | src/devices/cpu/rsp/vmul.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/src/devices/cpu/rsp/vmul.h b/src/devices/cpu/rsp/vmul.h deleted file mode 100644 index dc09e81768a..00000000000 --- a/src/devices/cpu/rsp/vmul.h +++ /dev/null @@ -1,39 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Tyler J. Stachecki,Ryan Holtz - -// -// TODO: CHECK ME. -// - -inline rsp_vec_t vec_vmulf_vmulu(uint32_t iw, rsp_vec_t vs, rsp_vec_t vt, rsp_vec_t zero, rsp_vec_t *acc_lo, rsp_vec_t *acc_md, rsp_vec_t *acc_hi) -{ - rsp_vec_t lo = _mm_mullo_epi16(vs, vt); - rsp_vec_t round = _mm_cmpeq_epi16(zero, zero); - rsp_vec_t sign1 = _mm_srli_epi16(lo, 15); - lo = _mm_add_epi16(lo, lo); - round = _mm_slli_epi16(round, 15); - rsp_vec_t hi = _mm_mulhi_epi16(vs, vt); - rsp_vec_t sign2 = _mm_srli_epi16(lo, 15); - *acc_lo = _mm_add_epi16(round, lo); - sign1 = _mm_add_epi16(sign1, sign2); - - hi = _mm_slli_epi16(hi, 1); - rsp_vec_t eq = _mm_cmpeq_epi16(vs, vt); - rsp_vec_t neq = eq; - *acc_md = _mm_add_epi16(hi, sign1); - - rsp_vec_t neg = _mm_srai_epi16(*acc_md, 15); - - if (iw & 0x1) // VMULU - { - *acc_hi = _mm_andnot_si128(eq, neg); - hi =_mm_or_si128(*acc_md, neg); - return _mm_andnot_si128(*acc_hi, hi); - } - else // VMULF - { - eq = _mm_and_si128(eq, neg); - *acc_hi = _mm_andnot_si128(neq, neg); - return _mm_add_epi16(*acc_md, eq); - } -} |