1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * QEMU LoongArch vector utilitites 4 * 5 * Copyright (c) 2023 Loongson Technology Corporation Limited 6 */ 7 8 #ifndef LOONGARCH_VEC_H 9 #define LOONGARCH_VEC_H 10 11 #if HOST_BIG_ENDIAN 12 #define B(x) B[(x) ^ 15] 13 #define H(x) H[(x) ^ 7] 14 #define W(x) W[(x) ^ 3] 15 #define D(x) D[(x) ^ 1] 16 #define UB(x) UB[(x) ^ 15] 17 #define UH(x) UH[(x) ^ 7] 18 #define UW(x) UW[(x) ^ 3] 19 #define UD(x) UD[(x) ^ 1] 20 #define Q(x) Q[x] 21 #else 22 #define B(x) B[x] 23 #define H(x) H[x] 24 #define W(x) W[x] 25 #define D(x) D[x] 26 #define UB(x) UB[x] 27 #define UH(x) UH[x] 28 #define UW(x) UW[x] 29 #define UD(x) UD[x] 30 #define Q(x) Q[x] 31 #endif /* HOST_BIG_ENDIAN */ 32 33 #define DO_ADD(a, b) (a + b) 34 #define DO_SUB(a, b) (a - b) 35 #define DO_VAVG(a, b) ((a >> 1) + (b >> 1) + (a & b & 1)) 36 #define DO_VAVGR(a, b) ((a >> 1) + (b >> 1) + ((a | b) & 1)) 37 #define DO_VABSD(a, b) ((a > b) ? (a -b) : (b-a)) 38 #define DO_VABS(a) ((a < 0) ? (-a) : (a)) 39 #define DO_MIN(a, b) (a < b ? a : b) 40 #define DO_MAX(a, b) (a > b ? a : b) 41 #define DO_MUL(a, b) (a * b) 42 #define DO_MADD(a, b, c) (a + b * c) 43 #define DO_MSUB(a, b, c) (a - b * c) 44 45 #define DO_DIVU(N, M) (unlikely(M == 0) ? 0 : N / M) 46 #define DO_REMU(N, M) (unlikely(M == 0) ? 0 : N % M) 47 #define DO_DIV(N, M) (unlikely(M == 0) ? 0 :\ 48 unlikely((N == -N) && (M == (__typeof(N))(-1))) ? N : N / M) 49 #define DO_REM(N, M) (unlikely(M == 0) ? 0 :\ 50 unlikely((N == -N) && (M == (__typeof(N))(-1))) ? 0 : N % M) 51 52 #define DO_SIGNCOV(a, b) (a == 0 ? 0 : a < 0 ? -b : b) 53 54 #define R_SHIFT(a, b) (a >> b) 55 56 #define DO_CLO_B(N) (clz32(~N & 0xff) - 24) 57 #define DO_CLO_H(N) (clz32(~N & 0xffff) - 16) 58 #define DO_CLO_W(N) (clz32(~N)) 59 #define DO_CLO_D(N) (clz64(~N)) 60 #define DO_CLZ_B(N) (clz32(N) - 24) 61 #define DO_CLZ_H(N) (clz32(N) - 16) 62 #define DO_CLZ_W(N) (clz32(N)) 63 #define DO_CLZ_D(N) (clz64(N)) 64 65 #define DO_BITCLR(a, bit) (a & ~(1ull << bit)) 66 #define DO_BITSET(a, bit) (a | 1ull << bit) 67 #define DO_BITREV(a, bit) (a ^ (1ull << bit)) 68 69 #define VSEQ(a, b) (a == b ? -1 : 0) 70 #define VSLE(a, b) (a <= b ? -1 : 0) 71 #define VSLT(a, b) (a < b ? -1 : 0) 72 73 #define SHF_POS(i, imm) (((i) & 0xfc) + (((imm) >> (2 * ((i) & 0x03))) & 0x03)) 74 75 #endif /* LOONGARCH_VEC_H */ 76