summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/cpu/rsp/vmul.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/cpu/rsp/vmul.h')
-rw-r--r--src/devices/cpu/rsp/vmul.h39
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);
- }
-}