arch/mips/dsp.cc

61 MipsISA::dspSaturate(uint64_t value, int32_t fmt, int32_t sign,
68         if (svalue > (int64_t)FIXED_SMAX[fmt]) {
70             svalue = (int64_t)FIXED_SMAX[fmt];
71         } else if (svalue < (int64_t)FIXED_SMIN[fmt]) {
73             svalue = (int64_t)FIXED_SMIN[fmt];
77         if (svalue > (int64_t)FIXED_UMAX[fmt]) {
79             svalue = FIXED_UMAX[fmt];
80         } else if (svalue < (int64_t)FIXED_UMIN[fmt]) {
82             svalue = FIXED_UMIN[fmt];
91 MipsISA::checkOverflow(uint64_t value, int32_t fmt, int32_t sign,
99         if (svalue > (int64_t)FIXED_SMAX[fmt] ||
100             svalue < (int64_t)FIXED_SMIN[fmt])
104         if (svalue > (int64_t)FIXED_UMAX[fmt] ||
105             svalue < (int64_t)FIXED_UMIN[fmt])
114 MipsISA::signExtend(uint64_t value, int32_t fmt)
116     int32_t signpos = SIMD_NBITS[fmt];
135 MipsISA::dspAbs(int32_t a, int32_t fmt, uint32_t *dspctl)
137     int nvals = SIMD_NVALS[fmt];
143     simdUnpack(a, a_values, fmt, SIGNED);
148         if (a_values[i] == FIXED_SMIN[fmt]) {
149             a_values[i] = FIXED_SMAX[fmt];
156     simdPack(a_values, &result, fmt);
166 MipsISA::dspAdd(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
169     int nvals = SIMD_NVALS[fmt];
175     simdUnpack(a, a_values, fmt, sign);
176     simdUnpack(b, b_values, fmt, sign);
181             a_values[i] = dspSaturate(a_values[i] + b_values[i], fmt, sign,
184             a_values[i] = checkOverflow(a_values[i] + b_values[i], fmt, sign,
188     simdPack(a_values, &result, fmt);
198 MipsISA::dspAddh(int32_t a, int32_t b, int32_t fmt, int32_t round,
201     int nvals = SIMD_NVALS[fmt];
206     simdUnpack(a, a_values, fmt, sign);
207     simdUnpack(b, b_values, fmt, sign);
216     simdPack(a_values, &result, fmt);
222 MipsISA::dspSub(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
225     int nvals = SIMD_NVALS[fmt];
231     simdUnpack(a, a_values, fmt, sign);
232     simdUnpack(b, b_values, fmt, sign);
236             a_values[i] = dspSaturate(a_values[i] - b_values[i], fmt, sign,
239             a_values[i] = checkOverflow(a_values[i] - b_values[i], fmt, sign,
243     simdPack(a_values, &result, fmt);
253 MipsISA::dspSubh(int32_t a, int32_t b, int32_t fmt, int32_t round,
256     int nvals = SIMD_NVALS[fmt];
261     simdUnpack(a, a_values, fmt, sign);
262     simdUnpack(b, b_values, fmt, sign);
272     simdPack(a_values, &result, fmt);
278 MipsISA::dspShll(int32_t a, uint32_t sa, int32_t fmt, int32_t saturate,
281     int nvals = SIMD_NVALS[fmt];
286     sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
287     simdUnpack(a, a_values, fmt, sign);
292             a_values[i] = dspSaturate(a_values[i] << sa, fmt, sign, &ouflag);
294             a_values[i] = checkOverflow(a_values[i] << sa, fmt, sign, &ouflag);
297     simdPack(a_values, &result, fmt);
307 MipsISA::dspShrl(int32_t a, uint32_t sa, int32_t fmt, int32_t sign)
309     int nvals = SIMD_NVALS[fmt];
313     sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
315     simdUnpack(a, a_values, fmt, UNSIGNED);
320     simdPack(a_values, &result, fmt);
326 MipsISA::dspShra(int32_t a, uint32_t sa, int32_t fmt, int32_t round,
329     int nvals = SIMD_NVALS[fmt];
333     sa = bits(sa, SIMD_LOG2N[fmt] - 1, 0);
335     simdUnpack(a, a_values, fmt, SIGNED);
344     simdPack(a_values, &result, fmt);
350 MipsISA::dspMulq(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
353     int nvals = SIMD_NVALS[fmt];
354     int sa = SIMD_NBITS[fmt];
361     simdUnpack(a, a_values, fmt, SIGNED);
362     simdUnpack(b, b_values, fmt, SIGNED);
371         if (a_values[i] == FIXED_SMIN[fmt] && b_values[i] == FIXED_SMIN[fmt]) {
375                 temp = FIXED_SMAX[fmt];
381     simdPack(a_values, &result, fmt);
391 MipsISA::dspMul(int32_t a, int32_t b, int32_t fmt, int32_t saturate,
394     int nvals = SIMD_NVALS[fmt];
400     simdUnpack(a, a_values, fmt, SIGNED);
401     simdUnpack(b, b_values, fmt, SIGNED);
406             a_values[i] = dspSaturate(a_values[i] * b_values[i], fmt, SIGNED,
409             a_values[i] = checkOverflow(a_values[i] * b_values[i], fmt, SIGNED,
413     simdPack(a_values, &result, fmt);
629                 int32_t fmt, int32_t sign, int32_t mode)
631     int nvals = SIMD_NVALS[fmt];
635     simdUnpack(a, a_values, fmt, sign);
636     simdUnpack(b, b_values, fmt, sign);
657                 int32_t fmt, int32_t sign, int32_t mode)
659     int nvals = SIMD_NVALS[fmt];
663     simdUnpack(a, a_values, fmt, sign);
664     simdUnpack(b, b_values, fmt, sign);
685                  int32_t fmt, int32_t mode, int32_t saturate, uint32_t *dspctl)
687     int nvals = SIMD_NVALS[fmt - 1];
693     simdUnpack(a, a_values, fmt, SIGNED);
694     simdUnpack(b, b_values, fmt, SIGNED);
700             if (a_values[i + 1] == FIXED_SMIN[fmt] &&
701                 b_values[i + 1] == FIXED_SMIN[fmt]) {
702                 temp = (int64_t)FIXED_SMAX[fmt - 1];
708             if (a_values[i] == FIXED_SMIN[fmt] &&
709                 b_values[i] == FIXED_SMIN[fmt]) {
710                 temp = (int64_t)FIXED_SMAX[fmt - 1];
719             temp = dspSaturate(temp, fmt - 1, SIGNED, &ouflag);
728 MipsISA::dspMulsa(int64_t dspac, int32_t a, int32_t b, int32_t ac, int32_t fmt)
733     simdUnpack(a, a_values, fmt, SIGNED);
734     simdUnpack(b, b_values, fmt, SIGNED);
743     int32_t fmt, uint32_t *dspctl)
745     int nvals = SIMD_NVALS[fmt];
751     simdUnpack(a, a_values, fmt, SIGNED);
752     simdUnpack(b, b_values, fmt, SIGNED);
756         if (a_values[i] == FIXED_SMIN[fmt] && b_values[i] == FIXED_SMIN[fmt]) {
757             temp[i] = FIXED_SMAX[fmt - 1];
771 MipsISA::dspCmp(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op,
774     int nvals = SIMD_NVALS[fmt];
779     simdUnpack(a, a_values, fmt, sign);
780     simdUnpack(b, b_values, fmt, sign);
804 MipsISA::dspCmpg(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op)
806     int nvals = SIMD_NVALS[fmt];
811     simdUnpack(a, a_values, fmt, sign);
812     simdUnpack(b, b_values, fmt, sign);
836 MipsISA::dspCmpgd(int32_t a, int32_t b, int32_t fmt, int32_t sign, int32_t op,
839     int nvals = SIMD_NVALS[fmt];
845     simdUnpack(a, a_values, fmt, sign);
846     simdUnpack(b, b_values, fmt, sign);
944 MipsISA::dspPrecrq(int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl)
952     simdUnpack(a, a_values, fmt, SIGNED);
953     simdUnpack(b, b_values, fmt, SIGNED);
956                               fmt + 1, SIGNED, &ouflag);
958                               fmt + 1, SIGNED, &ouflag);
960     simdPack(r_values, &result, fmt + 1);
969 MipsISA::dspPrecrSra(int32_t a, int32_t b, int32_t sa, int32_t fmt,
972     int nvals = SIMD_NVALS[fmt];
978     simdUnpack(a, a_values, fmt, SIGNED);
979     simdUnpack(b, b_values, fmt, SIGNED);
991     simdPack(c_values, &result, fmt + 1);
997 MipsISA::dspPick(int32_t a, int32_t b, int32_t fmt, uint32_t *dspctl)
999     int nvals = SIMD_NVALS[fmt];
1005     simdUnpack(a, a_values, fmt, UNSIGNED);
1006     simdUnpack(b, b_values, fmt, UNSIGNED);
1016     simdPack(c_values, &result, fmt);
1022 MipsISA::dspPack(int32_t a, int32_t b, int32_t fmt)
1029     simdUnpack(a, a_values, fmt, UNSIGNED);
1030     simdUnpack(b, b_values, fmt, UNSIGNED);
1035     simdPack(c_values, &result, fmt);
1041 MipsISA::dspExtr(int64_t dspac, int32_t fmt, int32_t sa, int32_t round,
1067     dspac = checkOverflow(dspac, fmt, SIGNED, &ouflag);
1073             result = (int32_t)dspSaturate(temp, fmt, SIGNED, &ouflag);
1128 MipsISA::simdPack(uint64_t *values_ptr, int32_t *reg, int32_t fmt)
1130     int nvals = SIMD_NVALS[fmt];
1131     int nbits = SIMD_NBITS[fmt];
1140 MipsISA::simdUnpack(int32_t reg, uint64_t *values_ptr, int32_t fmt, int32_t sign)
1142     int nvals = SIMD_NVALS[fmt];
1143     int nbits = SIMD_NBITS[fmt];
1149             values_ptr[i] = signExtend(tmp, fmt);