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Diffstat (limited to 'src/devices/cpu/rsp/vcr.h')
-rw-r--r--src/devices/cpu/rsp/vcr.h35
1 files changed, 0 insertions, 35 deletions
diff --git a/src/devices/cpu/rsp/vcr.h b/src/devices/cpu/rsp/vcr.h
deleted file mode 100644
index 78f78c66244..00000000000
--- a/src/devices/cpu/rsp/vcr.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Tyler J. Stachecki,Ryan Holtz
-
-inline rsp_vec_t vec_vcr(rsp_vec_t vs, rsp_vec_t vt, rsp_vec_t zero, rsp_vec_t *ge, rsp_vec_t *le) {
- // sign = (vs ^ vt) < 0
- rsp_vec_t sign = _mm_xor_si128(vs, vt);
- sign = _mm_srai_epi16(sign, 15);
-
- // Compute le
- rsp_vec_t diff_lez = _mm_and_si128(vs, sign);
- diff_lez = _mm_add_epi16(diff_lez, vt);
- *le = _mm_srai_epi16(diff_lez, 15);
-
- // Compute ge
- rsp_vec_t diff_gez = _mm_or_si128(vs, sign);
- diff_gez = _mm_min_epi16(diff_gez, vt);
- *ge = _mm_cmpeq_epi16(diff_gez, vt);
-
- // sign_notvt = sn ? ~vt : vt
- rsp_vec_t sign_notvt = _mm_xor_si128(vt, sign);
-
- // Compute result:
-#if (defined(__SSE4_1__) || defined(_MSC_VER))
- rsp_vec_t diff_sel_mask = _mm_blendv_epi8(*ge, *le, sign);
- return _mm_blendv_epi8(vs, sign_notvt, diff_sel_mask);
-#else
- rsp_vec_t diff_sel_mask = _mm_sub_epi16(*le, *ge);
- diff_sel_mask = _mm_and_si128(diff_sel_mask, sign);
- diff_sel_mask = _mm_add_epi16(diff_sel_mask, *ge);
-
- zero = _mm_sub_epi16(sign_notvt, vs);
- zero = _mm_and_si128(zero, diff_sel_mask);
- return _mm_add_epi16(zero, vs);
-#endif
-}