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Diffstat (limited to 'src/devices/cpu/rsp/vmull.h')
-rw-r--r--src/devices/cpu/rsp/vmull.h44
1 files changed, 0 insertions, 44 deletions
diff --git a/src/devices/cpu/rsp/vmull.h b/src/devices/cpu/rsp/vmull.h
deleted file mode 100644
index e54399b01da..00000000000
--- a/src/devices/cpu/rsp/vmull.h
+++ /dev/null
@@ -1,44 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Tyler J. Stachecki,Ryan Holtz
-
-inline rsp_vec_t vec_vmadl_vmudl(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 hi = _mm_mulhi_epu16(vs, vt);
-
- if (iw & 0x8) // VMADL
- {
- // Tricky part: start accumulating everything.
- // Get/keep the carry as we'll add it in later.
- rsp_vec_t overflow_mask = _mm_adds_epu16(*acc_lo, hi);
- *acc_lo = _mm_add_epi16(*acc_lo, hi);
-
- overflow_mask = _mm_cmpeq_epi16(*acc_lo, overflow_mask);
- overflow_mask = _mm_cmpeq_epi16(overflow_mask, zero);
- hi = _mm_sub_epi16(zero, overflow_mask);
-
- // Check for overflow of the upper sum.
- //
- // TODO: Since hi can only be {0,1}, we should
- // be able to generalize this for performance.
- overflow_mask = _mm_adds_epu16(*acc_md, hi);
- *acc_md = _mm_add_epi16(*acc_md, hi);
-
- overflow_mask = _mm_cmpeq_epi16(*acc_md, overflow_mask);
- overflow_mask = _mm_cmpeq_epi16(overflow_mask, zero);
-
- // Finish up the accumulation of the... accumulator.
- // Since the product was unsigned, only worry about
- // positive overflow (i.e.: borrowing not possible).
- *acc_hi = _mm_sub_epi16(*acc_hi, overflow_mask);
-
- return uclamp_acc(*acc_lo, *acc_md, *acc_hi, zero);
- }
- else // VMUDL
- {
- *acc_lo = hi;
- *acc_md = zero;
- *acc_hi = zero;
-
- return hi;
- }
-}