38 lines
1.7 KiB
C
38 lines
1.7 KiB
C
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/******************************************************************************\
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* Authors: Iconoclast *
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* Release: 2013.11.26 *
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* License: CC0 Public Domain Dedication *
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* *
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* To the extent possible under law, the author(s) have dedicated all copyright *
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* and related and neighboring rights to this software to the public domain *
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* worldwide. This software is distributed without any warranty. *
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* *
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* You should have received a copy of the CC0 Public Domain Dedication along *
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* with this software. *
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* If not, see <http://creativecommons.org/publicdomain/zero/1.0/>. *
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\******************************************************************************/
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#include "vu.h"
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INLINE static void do_mudm(usf_state_t * state, short* VD, short* VS, short* VT)
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{
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register int i;
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for (i = 0; i < N; i++)
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VACC_L[i] = (VS[i]*(unsigned short)(VT[i]) & 0x00000000FFFF) >> 0;
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for (i = 0; i < N; i++)
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VACC_M[i] = (VS[i]*(unsigned short)(VT[i]) & 0x0000FFFF0000) >> 16;
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for (i = 0; i < N; i++)
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VACC_H[i] = -(VACC_M[i] < 0);
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vector_copy(VD, VACC_M); /* no possibilities to clamp */
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return;
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}
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static void VMUDM(usf_state_t * state, int vd, int vs, int vt, int e)
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{
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short ST[N];
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SHUFFLE_VECTOR(ST, state->VR[vt], e);
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do_mudm(state, state->VR[vd], state->VR[vs], ST);
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return;
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}
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