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/*
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* ARM NEON vector operations.
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*
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* Copyright (c) 2007, 2008 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licenced under the GNU GPL v2.
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*/
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#include <stdlib.h> |
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#include <stdio.h> |
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#include "cpu.h" |
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#include "exec-all.h" |
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#include "helpers.h" |
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#define SIGNBIT (uint32_t)0x80000000 |
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#define SIGNBIT64 ((uint64_t)1 << 63) |
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#define SET_QC() env->vfp.xregs[ARM_VFP_FPSCR] = CPSR_Q
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static float_status neon_float_status;
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#define NFS &neon_float_status
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/* Helper routines to perform bitwise copies between float and int. */
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static inline float32 vfp_itos(uint32_t i) |
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{ |
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union {
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uint32_t i; |
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float32 s; |
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} v; |
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v.i = i; |
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return v.s;
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} |
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static inline uint32_t vfp_stoi(float32 s) |
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{ |
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union {
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uint32_t i; |
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float32 s; |
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} v; |
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v.s = s; |
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return v.i;
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} |
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#define NEON_TYPE1(name, type) \
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typedef struct \ |
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{ \ |
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type v1; \ |
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} neon_##name; |
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#ifdef HOST_WORDS_BIGENDIAN
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#define NEON_TYPE2(name, type) \
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typedef struct \ |
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{ \ |
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type v2; \ |
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type v1; \ |
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} neon_##name; |
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#define NEON_TYPE4(name, type) \
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typedef struct \ |
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{ \ |
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type v4; \ |
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type v3; \ |
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type v2; \ |
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type v1; \ |
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} neon_##name; |
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#else
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#define NEON_TYPE2(name, type) \
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typedef struct \ |
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{ \ |
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type v1; \ |
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type v2; \ |
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} neon_##name; |
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#define NEON_TYPE4(name, type) \
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typedef struct \ |
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{ \ |
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type v1; \ |
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type v2; \ |
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type v3; \ |
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type v4; \ |
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} neon_##name; |
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#endif
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NEON_TYPE4(s8, int8_t) |
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NEON_TYPE4(u8, uint8_t) |
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NEON_TYPE2(s16, int16_t) |
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NEON_TYPE2(u16, uint16_t) |
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NEON_TYPE1(s32, int32_t) |
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NEON_TYPE1(u32, uint32_t) |
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#undef NEON_TYPE4
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#undef NEON_TYPE2
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#undef NEON_TYPE1
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/* Copy from a uint32_t to a vector structure type. */
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#define NEON_UNPACK(vtype, dest, val) do { \ |
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union { \
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vtype v; \ |
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uint32_t i; \ |
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} conv_u; \ |
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conv_u.i = (val); \ |
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dest = conv_u.v; \ |
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} while(0) |
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/* Copy from a vector structure type to a uint32_t. */
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#define NEON_PACK(vtype, dest, val) do { \ |
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union { \
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vtype v; \ |
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uint32_t i; \ |
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} conv_u; \ |
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conv_u.v = (val); \ |
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dest = conv_u.i; \ |
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} while(0) |
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#define NEON_DO1 \
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NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); |
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#define NEON_DO2 \
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NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); \ |
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NEON_FN(vdest.v2, vsrc1.v2, vsrc2.v2); |
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#define NEON_DO4 \
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NEON_FN(vdest.v1, vsrc1.v1, vsrc2.v1); \ |
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NEON_FN(vdest.v2, vsrc1.v2, vsrc2.v2); \ |
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NEON_FN(vdest.v3, vsrc1.v3, vsrc2.v3); \ |
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NEON_FN(vdest.v4, vsrc1.v4, vsrc2.v4); |
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#define NEON_VOP_BODY(vtype, n) \
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{ \ |
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uint32_t res; \ |
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vtype vsrc1; \ |
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vtype vsrc2; \ |
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vtype vdest; \ |
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NEON_UNPACK(vtype, vsrc1, arg1); \ |
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NEON_UNPACK(vtype, vsrc2, arg2); \ |
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NEON_DO##n; \ |
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NEON_PACK(vtype, res, vdest); \ |
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return res; \
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} |
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#define NEON_VOP(name, vtype, n) \
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uint32_t HELPER(glue(neon_,name))(uint32_t arg1, uint32_t arg2) \ |
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NEON_VOP_BODY(vtype, n) |
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#define NEON_VOP_ENV(name, vtype, n) \
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uint32_t HELPER(glue(neon_,name))(CPUState *env, uint32_t arg1, uint32_t arg2) \ |
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NEON_VOP_BODY(vtype, n) |
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/* Pairwise operations. */
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/* For 32-bit elements each segment only contains a single element, so
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the elementwise and pairwise operations are the same. */
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#define NEON_PDO2 \
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NEON_FN(vdest.v1, vsrc1.v1, vsrc1.v2); \ |
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NEON_FN(vdest.v2, vsrc2.v1, vsrc2.v2); |
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#define NEON_PDO4 \
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NEON_FN(vdest.v1, vsrc1.v1, vsrc1.v2); \ |
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NEON_FN(vdest.v2, vsrc1.v3, vsrc1.v4); \ |
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NEON_FN(vdest.v3, vsrc2.v1, vsrc2.v2); \ |
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NEON_FN(vdest.v4, vsrc2.v3, vsrc2.v4); \ |
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#define NEON_POP(name, vtype, n) \
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uint32_t HELPER(glue(neon_,name))(uint32_t arg1, uint32_t arg2) \ |
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{ \ |
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uint32_t res; \ |
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vtype vsrc1; \ |
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vtype vsrc2; \ |
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vtype vdest; \ |
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NEON_UNPACK(vtype, vsrc1, arg1); \ |
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NEON_UNPACK(vtype, vsrc2, arg2); \ |
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NEON_PDO##n; \ |
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NEON_PACK(vtype, res, vdest); \ |
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return res; \
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} |
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/* Unary operators. */
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#define NEON_VOP1(name, vtype, n) \
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uint32_t HELPER(glue(neon_,name))(uint32_t arg) \ |
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{ \ |
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vtype vsrc1; \ |
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vtype vdest; \ |
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NEON_UNPACK(vtype, vsrc1, arg); \ |
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NEON_DO##n; \ |
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NEON_PACK(vtype, arg, vdest); \ |
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return arg; \
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} |
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#define NEON_USAT(dest, src1, src2, type) do { \ |
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uint32_t tmp = (uint32_t)src1 + (uint32_t)src2; \ |
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if (tmp != (type)tmp) { \
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SET_QC(); \ |
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dest = ~0; \
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} else { \
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dest = tmp; \ |
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}} while(0) |
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#define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint8_t)
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NEON_VOP_ENV(qadd_u8, neon_u8, 4)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint16_t)
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NEON_VOP_ENV(qadd_u16, neon_u16, 2)
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#undef NEON_FN
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#undef NEON_USAT
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uint32_t HELPER(neon_qadd_u32)(CPUState *env, uint32_t a, uint32_t b) |
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{ |
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uint32_t res = a + b; |
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if (res < a) {
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SET_QC(); |
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res = ~0;
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} |
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return res;
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} |
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uint64_t HELPER(neon_qadd_u64)(CPUState *env, uint64_t src1, uint64_t src2) |
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{ |
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uint64_t res; |
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res = src1 + src2; |
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if (res < src1) {
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SET_QC(); |
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res = ~(uint64_t)0;
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} |
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return res;
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} |
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#define NEON_SSAT(dest, src1, src2, type) do { \ |
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int32_t tmp = (uint32_t)src1 + (uint32_t)src2; \ |
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if (tmp != (type)tmp) { \
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SET_QC(); \ |
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if (src2 > 0) { \ |
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tmp = (1 << (sizeof(type) * 8 - 1)) - 1; \ |
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} else { \
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tmp = 1 << (sizeof(type) * 8 - 1); \ |
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} \ |
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} \ |
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dest = tmp; \ |
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} while(0) |
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#define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int8_t)
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NEON_VOP_ENV(qadd_s8, neon_s8, 4)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int16_t)
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NEON_VOP_ENV(qadd_s16, neon_s16, 2)
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#undef NEON_FN
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#undef NEON_SSAT
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uint32_t HELPER(neon_qadd_s32)(CPUState *env, uint32_t a, uint32_t b) |
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{ |
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uint32_t res = a + b; |
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if (((res ^ a) & SIGNBIT) && !((a ^ b) & SIGNBIT)) {
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SET_QC(); |
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res = ~(((int32_t)a >> 31) ^ SIGNBIT);
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} |
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return res;
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} |
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uint64_t HELPER(neon_qadd_s64)(CPUState *env, uint64_t src1, uint64_t src2) |
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{ |
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uint64_t res; |
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res = src1 + src2; |
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if (((res ^ src1) & SIGNBIT64) && !((src1 ^ src2) & SIGNBIT64)) {
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SET_QC(); |
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res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64;
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} |
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return res;
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} |
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#define NEON_USAT(dest, src1, src2, type) do { \ |
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uint32_t tmp = (uint32_t)src1 - (uint32_t)src2; \ |
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if (tmp != (type)tmp) { \
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SET_QC(); \ |
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dest = 0; \
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} else { \
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dest = tmp; \ |
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}} while(0) |
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#define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint8_t)
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NEON_VOP_ENV(qsub_u8, neon_u8, 4)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) NEON_USAT(dest, src1, src2, uint16_t)
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NEON_VOP_ENV(qsub_u16, neon_u16, 2)
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#undef NEON_FN
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#undef NEON_USAT
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uint32_t HELPER(neon_qsub_u32)(CPUState *env, uint32_t a, uint32_t b) |
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{ |
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uint32_t res = a - b; |
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if (res > a) {
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SET_QC(); |
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res = 0;
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} |
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return res;
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} |
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uint64_t HELPER(neon_qsub_u64)(CPUState *env, uint64_t src1, uint64_t src2) |
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{ |
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uint64_t res; |
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if (src1 < src2) {
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SET_QC(); |
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res = 0;
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} else {
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res = src1 - src2; |
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} |
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return res;
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} |
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#define NEON_SSAT(dest, src1, src2, type) do { \ |
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int32_t tmp = (uint32_t)src1 - (uint32_t)src2; \ |
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if (tmp != (type)tmp) { \
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SET_QC(); \ |
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if (src2 < 0) { \ |
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tmp = (1 << (sizeof(type) * 8 - 1)) - 1; \ |
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} else { \
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tmp = 1 << (sizeof(type) * 8 - 1); \ |
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} \ |
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} \ |
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dest = tmp; \ |
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} while(0) |
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#define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int8_t)
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NEON_VOP_ENV(qsub_s8, neon_s8, 4)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) NEON_SSAT(dest, src1, src2, int16_t)
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NEON_VOP_ENV(qsub_s16, neon_s16, 2)
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#undef NEON_FN
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#undef NEON_SSAT
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uint32_t HELPER(neon_qsub_s32)(CPUState *env, uint32_t a, uint32_t b) |
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{ |
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uint32_t res = a - b; |
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if (((res ^ a) & SIGNBIT) && ((a ^ b) & SIGNBIT)) {
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SET_QC(); |
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res = ~(((int32_t)a >> 31) ^ SIGNBIT);
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} |
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return res;
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} |
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uint64_t HELPER(neon_qsub_s64)(CPUState *env, uint64_t src1, uint64_t src2) |
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{ |
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uint64_t res; |
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res = src1 - src2; |
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if (((res ^ src1) & SIGNBIT64) && ((src1 ^ src2) & SIGNBIT64)) {
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SET_QC(); |
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res = ((int64_t)src1 >> 63) ^ ~SIGNBIT64;
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} |
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return res;
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} |
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#define NEON_FN(dest, src1, src2) dest = (src1 + src2) >> 1 |
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NEON_VOP(hadd_s8, neon_s8, 4)
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NEON_VOP(hadd_u8, neon_u8, 4)
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NEON_VOP(hadd_s16, neon_s16, 2)
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NEON_VOP(hadd_u16, neon_u16, 2)
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#undef NEON_FN
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int32_t HELPER(neon_hadd_s32)(int32_t src1, int32_t src2) |
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{ |
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int32_t dest; |
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dest = (src1 >> 1) + (src2 >> 1); |
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if (src1 & src2 & 1) |
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dest++; |
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return dest;
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} |
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uint32_t HELPER(neon_hadd_u32)(uint32_t src1, uint32_t src2) |
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{ |
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uint32_t dest; |
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dest = (src1 >> 1) + (src2 >> 1); |
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if (src1 & src2 & 1) |
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dest++; |
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return dest;
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} |
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#define NEON_FN(dest, src1, src2) dest = (src1 + src2 + 1) >> 1 |
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NEON_VOP(rhadd_s8, neon_s8, 4)
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NEON_VOP(rhadd_u8, neon_u8, 4)
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NEON_VOP(rhadd_s16, neon_s16, 2)
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NEON_VOP(rhadd_u16, neon_u16, 2)
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#undef NEON_FN
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int32_t HELPER(neon_rhadd_s32)(int32_t src1, int32_t src2) |
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{ |
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int32_t dest; |
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dest = (src1 >> 1) + (src2 >> 1); |
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if ((src1 | src2) & 1) |
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dest++; |
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return dest;
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} |
389 |
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uint32_t HELPER(neon_rhadd_u32)(uint32_t src1, uint32_t src2) |
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{ |
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uint32_t dest; |
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dest = (src1 >> 1) + (src2 >> 1); |
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if ((src1 | src2) & 1) |
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dest++; |
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return dest;
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} |
399 |
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#define NEON_FN(dest, src1, src2) dest = (src1 - src2) >> 1 |
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NEON_VOP(hsub_s8, neon_s8, 4)
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NEON_VOP(hsub_u8, neon_u8, 4)
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NEON_VOP(hsub_s16, neon_s16, 2)
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NEON_VOP(hsub_u16, neon_u16, 2)
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#undef NEON_FN
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|
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int32_t HELPER(neon_hsub_s32)(int32_t src1, int32_t src2) |
408 |
{ |
409 |
int32_t dest; |
410 |
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dest = (src1 >> 1) - (src2 >> 1); |
412 |
if ((~src1) & src2 & 1) |
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dest--; |
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return dest;
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} |
416 |
|
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uint32_t HELPER(neon_hsub_u32)(uint32_t src1, uint32_t src2) |
418 |
{ |
419 |
uint32_t dest; |
420 |
|
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dest = (src1 >> 1) - (src2 >> 1); |
422 |
if ((~src1) & src2 & 1) |
423 |
dest--; |
424 |
return dest;
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} |
426 |
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#define NEON_FN(dest, src1, src2) dest = (src1 > src2) ? ~0 : 0 |
428 |
NEON_VOP(cgt_s8, neon_s8, 4)
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NEON_VOP(cgt_u8, neon_u8, 4)
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NEON_VOP(cgt_s16, neon_s16, 2)
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NEON_VOP(cgt_u16, neon_u16, 2)
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NEON_VOP(cgt_s32, neon_s32, 1)
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NEON_VOP(cgt_u32, neon_u32, 1)
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#undef NEON_FN
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435 |
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#define NEON_FN(dest, src1, src2) dest = (src1 >= src2) ? ~0 : 0 |
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NEON_VOP(cge_s8, neon_s8, 4)
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NEON_VOP(cge_u8, neon_u8, 4)
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NEON_VOP(cge_s16, neon_s16, 2)
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NEON_VOP(cge_u16, neon_u16, 2)
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NEON_VOP(cge_s32, neon_s32, 1)
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NEON_VOP(cge_u32, neon_u32, 1)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) dest = (src1 < src2) ? src1 : src2
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NEON_VOP(min_s8, neon_s8, 4)
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NEON_VOP(min_u8, neon_u8, 4)
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NEON_VOP(min_s16, neon_s16, 2)
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NEON_VOP(min_u16, neon_u16, 2)
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NEON_VOP(min_s32, neon_s32, 1)
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NEON_VOP(min_u32, neon_u32, 1)
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NEON_POP(pmin_s8, neon_s8, 4)
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NEON_POP(pmin_u8, neon_u8, 4)
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NEON_POP(pmin_s16, neon_s16, 2)
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NEON_POP(pmin_u16, neon_u16, 2)
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#undef NEON_FN
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|
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#define NEON_FN(dest, src1, src2) dest = (src1 > src2) ? src1 : src2
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NEON_VOP(max_s8, neon_s8, 4)
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NEON_VOP(max_u8, neon_u8, 4)
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461 |
NEON_VOP(max_s16, neon_s16, 2)
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462 |
NEON_VOP(max_u16, neon_u16, 2)
|
463 |
NEON_VOP(max_s32, neon_s32, 1)
|
464 |
NEON_VOP(max_u32, neon_u32, 1)
|
465 |
NEON_POP(pmax_s8, neon_s8, 4)
|
466 |
NEON_POP(pmax_u8, neon_u8, 4)
|
467 |
NEON_POP(pmax_s16, neon_s16, 2)
|
468 |
NEON_POP(pmax_u16, neon_u16, 2)
|
469 |
#undef NEON_FN
|
470 |
|
471 |
#define NEON_FN(dest, src1, src2) \
|
472 |
dest = (src1 > src2) ? (src1 - src2) : (src2 - src1) |
473 |
NEON_VOP(abd_s8, neon_s8, 4)
|
474 |
NEON_VOP(abd_u8, neon_u8, 4)
|
475 |
NEON_VOP(abd_s16, neon_s16, 2)
|
476 |
NEON_VOP(abd_u16, neon_u16, 2)
|
477 |
NEON_VOP(abd_s32, neon_s32, 1)
|
478 |
NEON_VOP(abd_u32, neon_u32, 1)
|
479 |
#undef NEON_FN
|
480 |
|
481 |
#define NEON_FN(dest, src1, src2) do { \ |
482 |
int8_t tmp; \ |
483 |
tmp = (int8_t)src2; \ |
484 |
if (tmp >= (ssize_t)sizeof(src1) * 8 || \ |
485 |
tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
486 |
dest = 0; \
|
487 |
} else if (tmp < 0) { \ |
488 |
dest = src1 >> -tmp; \ |
489 |
} else { \
|
490 |
dest = src1 << tmp; \ |
491 |
}} while (0) |
492 |
NEON_VOP(shl_u8, neon_u8, 4)
|
493 |
NEON_VOP(shl_u16, neon_u16, 2)
|
494 |
NEON_VOP(shl_u32, neon_u32, 1)
|
495 |
#undef NEON_FN
|
496 |
|
497 |
uint64_t HELPER(neon_shl_u64)(uint64_t val, uint64_t shiftop) |
498 |
{ |
499 |
int8_t shift = (int8_t)shiftop; |
500 |
if (shift >= 64 || shift <= -64) { |
501 |
val = 0;
|
502 |
} else if (shift < 0) { |
503 |
val >>= -shift; |
504 |
} else {
|
505 |
val <<= shift; |
506 |
} |
507 |
return val;
|
508 |
} |
509 |
|
510 |
#define NEON_FN(dest, src1, src2) do { \ |
511 |
int8_t tmp; \ |
512 |
tmp = (int8_t)src2; \ |
513 |
if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
514 |
dest = 0; \
|
515 |
} else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
516 |
dest = src1 >> (sizeof(src1) * 8 - 1); \ |
517 |
} else if (tmp < 0) { \ |
518 |
dest = src1 >> -tmp; \ |
519 |
} else { \
|
520 |
dest = src1 << tmp; \ |
521 |
}} while (0) |
522 |
NEON_VOP(shl_s8, neon_s8, 4)
|
523 |
NEON_VOP(shl_s16, neon_s16, 2)
|
524 |
NEON_VOP(shl_s32, neon_s32, 1)
|
525 |
#undef NEON_FN
|
526 |
|
527 |
uint64_t HELPER(neon_shl_s64)(uint64_t valop, uint64_t shiftop) |
528 |
{ |
529 |
int8_t shift = (int8_t)shiftop; |
530 |
int64_t val = valop; |
531 |
if (shift >= 64) { |
532 |
val = 0;
|
533 |
} else if (shift <= -64) { |
534 |
val >>= 63;
|
535 |
} else if (shift < 0) { |
536 |
val >>= -shift; |
537 |
} else {
|
538 |
val <<= shift; |
539 |
} |
540 |
return val;
|
541 |
} |
542 |
|
543 |
#define NEON_FN(dest, src1, src2) do { \ |
544 |
int8_t tmp; \ |
545 |
tmp = (int8_t)src2; \ |
546 |
if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
547 |
dest = 0; \
|
548 |
} else if (tmp < -(ssize_t)sizeof(src1) * 8) { \ |
549 |
dest = src1 >> (sizeof(src1) * 8 - 1); \ |
550 |
} else if (tmp == -(ssize_t)sizeof(src1) * 8) { \ |
551 |
dest = src1 >> (tmp - 1); \
|
552 |
dest++; \ |
553 |
dest >>= 1; \
|
554 |
} else if (tmp < 0) { \ |
555 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
556 |
} else { \
|
557 |
dest = src1 << tmp; \ |
558 |
}} while (0) |
559 |
NEON_VOP(rshl_s8, neon_s8, 4)
|
560 |
NEON_VOP(rshl_s16, neon_s16, 2)
|
561 |
NEON_VOP(rshl_s32, neon_s32, 1)
|
562 |
#undef NEON_FN
|
563 |
|
564 |
uint64_t HELPER(neon_rshl_s64)(uint64_t valop, uint64_t shiftop) |
565 |
{ |
566 |
int8_t shift = (int8_t)shiftop; |
567 |
int64_t val = valop; |
568 |
if (shift >= 64) { |
569 |
val = 0;
|
570 |
} else if (shift < -64) { |
571 |
val >>= 63;
|
572 |
} else if (shift == -63) { |
573 |
val >>= 63;
|
574 |
val++; |
575 |
val >>= 1;
|
576 |
} else if (shift < 0) { |
577 |
val = (val + ((int64_t)1 << (-1 - shift))) >> -shift; |
578 |
} else {
|
579 |
val <<= shift; |
580 |
} |
581 |
return val;
|
582 |
} |
583 |
|
584 |
#define NEON_FN(dest, src1, src2) do { \ |
585 |
int8_t tmp; \ |
586 |
tmp = (int8_t)src2; \ |
587 |
if (tmp >= (ssize_t)sizeof(src1) * 8 || \ |
588 |
tmp < -(ssize_t)sizeof(src1) * 8) { \ |
589 |
dest = 0; \
|
590 |
} else if (tmp == -(ssize_t)sizeof(src1) * 8) { \ |
591 |
dest = src1 >> (tmp - 1); \
|
592 |
} else if (tmp < 0) { \ |
593 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
594 |
} else { \
|
595 |
dest = src1 << tmp; \ |
596 |
}} while (0) |
597 |
NEON_VOP(rshl_u8, neon_u8, 4)
|
598 |
NEON_VOP(rshl_u16, neon_u16, 2)
|
599 |
NEON_VOP(rshl_u32, neon_u32, 1)
|
600 |
#undef NEON_FN
|
601 |
|
602 |
uint64_t HELPER(neon_rshl_u64)(uint64_t val, uint64_t shiftop) |
603 |
{ |
604 |
int8_t shift = (uint8_t)shiftop; |
605 |
if (shift >= 64 || shift < 64) { |
606 |
val = 0;
|
607 |
} else if (shift == -64) { |
608 |
/* Rounding a 1-bit result just preserves that bit. */
|
609 |
val >>= 63;
|
610 |
} if (shift < 0) { |
611 |
val = (val + ((uint64_t)1 << (-1 - shift))) >> -shift; |
612 |
val >>= -shift; |
613 |
} else {
|
614 |
val <<= shift; |
615 |
} |
616 |
return val;
|
617 |
} |
618 |
|
619 |
#define NEON_FN(dest, src1, src2) do { \ |
620 |
int8_t tmp; \ |
621 |
tmp = (int8_t)src2; \ |
622 |
if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
623 |
if (src1) { \
|
624 |
SET_QC(); \ |
625 |
dest = ~0; \
|
626 |
} else { \
|
627 |
dest = 0; \
|
628 |
} \ |
629 |
} else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
630 |
dest = 0; \
|
631 |
} else if (tmp < 0) { \ |
632 |
dest = src1 >> -tmp; \ |
633 |
} else { \
|
634 |
dest = src1 << tmp; \ |
635 |
if ((dest >> tmp) != src1) { \
|
636 |
SET_QC(); \ |
637 |
dest = ~0; \
|
638 |
} \ |
639 |
}} while (0) |
640 |
NEON_VOP_ENV(qshl_u8, neon_u8, 4)
|
641 |
NEON_VOP_ENV(qshl_u16, neon_u16, 2)
|
642 |
NEON_VOP_ENV(qshl_u32, neon_u32, 1)
|
643 |
#undef NEON_FN
|
644 |
|
645 |
uint64_t HELPER(neon_qshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
646 |
{ |
647 |
int8_t shift = (int8_t)shiftop; |
648 |
if (shift >= 64) { |
649 |
if (val) {
|
650 |
val = ~(uint64_t)0;
|
651 |
SET_QC(); |
652 |
} |
653 |
} else if (shift <= -64) { |
654 |
val = 0;
|
655 |
} else if (shift < 0) { |
656 |
val >>= -shift; |
657 |
} else {
|
658 |
uint64_t tmp = val; |
659 |
val <<= shift; |
660 |
if ((val >> shift) != tmp) {
|
661 |
SET_QC(); |
662 |
val = ~(uint64_t)0;
|
663 |
} |
664 |
} |
665 |
return val;
|
666 |
} |
667 |
|
668 |
#define NEON_FN(dest, src1, src2) do { \ |
669 |
int8_t tmp; \ |
670 |
tmp = (int8_t)src2; \ |
671 |
if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
672 |
if (src1) { \
|
673 |
SET_QC(); \ |
674 |
dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \ |
675 |
if (src1 > 0) { \ |
676 |
dest--; \ |
677 |
} \ |
678 |
} else { \
|
679 |
dest = src1; \ |
680 |
} \ |
681 |
} else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
682 |
dest = src1 >> 31; \
|
683 |
} else if (tmp < 0) { \ |
684 |
dest = src1 >> -tmp; \ |
685 |
} else { \
|
686 |
dest = src1 << tmp; \ |
687 |
if ((dest >> tmp) != src1) { \
|
688 |
SET_QC(); \ |
689 |
dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \ |
690 |
if (src1 > 0) { \ |
691 |
dest--; \ |
692 |
} \ |
693 |
} \ |
694 |
}} while (0) |
695 |
NEON_VOP_ENV(qshl_s8, neon_s8, 4)
|
696 |
NEON_VOP_ENV(qshl_s16, neon_s16, 2)
|
697 |
NEON_VOP_ENV(qshl_s32, neon_s32, 1)
|
698 |
#undef NEON_FN
|
699 |
|
700 |
uint64_t HELPER(neon_qshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
701 |
{ |
702 |
int8_t shift = (uint8_t)shiftop; |
703 |
int64_t val = valop; |
704 |
if (shift >= 64) { |
705 |
if (val) {
|
706 |
SET_QC(); |
707 |
val = (val >> 63) ^ ~SIGNBIT64;
|
708 |
} |
709 |
} else if (shift <= -64) { |
710 |
val >>= 63;
|
711 |
} else if (shift < 0) { |
712 |
val >>= -shift; |
713 |
} else {
|
714 |
int64_t tmp = val; |
715 |
val <<= shift; |
716 |
if ((val >> shift) != tmp) {
|
717 |
SET_QC(); |
718 |
val = (tmp >> 63) ^ ~SIGNBIT64;
|
719 |
} |
720 |
} |
721 |
return val;
|
722 |
} |
723 |
|
724 |
#define NEON_FN(dest, src1, src2) do { \ |
725 |
if (src1 & (1 << (sizeof(src1) * 8 - 1))) { \ |
726 |
SET_QC(); \ |
727 |
dest = 0; \
|
728 |
} else { \
|
729 |
int8_t tmp; \ |
730 |
tmp = (int8_t)src2; \ |
731 |
if (tmp >= (ssize_t)sizeof(src1) * 8) { \ |
732 |
if (src1) { \
|
733 |
SET_QC(); \ |
734 |
dest = ~0; \
|
735 |
} else { \
|
736 |
dest = 0; \
|
737 |
} \ |
738 |
} else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \ |
739 |
dest = 0; \
|
740 |
} else if (tmp < 0) { \ |
741 |
dest = src1 >> -tmp; \ |
742 |
} else { \
|
743 |
dest = src1 << tmp; \ |
744 |
if ((dest >> tmp) != src1) { \
|
745 |
SET_QC(); \ |
746 |
dest = ~0; \
|
747 |
} \ |
748 |
} \ |
749 |
}} while (0) |
750 |
NEON_VOP_ENV(qshlu_s8, neon_u8, 4)
|
751 |
NEON_VOP_ENV(qshlu_s16, neon_u16, 2)
|
752 |
#undef NEON_FN
|
753 |
|
754 |
uint32_t HELPER(neon_qshlu_s32)(CPUState *env, uint32_t valop, uint32_t shiftop) |
755 |
{ |
756 |
if ((int32_t)valop < 0) { |
757 |
SET_QC(); |
758 |
return 0; |
759 |
} |
760 |
return helper_neon_qshl_u32(env, valop, shiftop);
|
761 |
} |
762 |
|
763 |
uint64_t HELPER(neon_qshlu_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
764 |
{ |
765 |
if ((int64_t)valop < 0) { |
766 |
SET_QC(); |
767 |
return 0; |
768 |
} |
769 |
return helper_neon_qshl_u64(env, valop, shiftop);
|
770 |
} |
771 |
|
772 |
/* FIXME: This is wrong. */
|
773 |
#define NEON_FN(dest, src1, src2) do { \ |
774 |
int8_t tmp; \ |
775 |
tmp = (int8_t)src2; \ |
776 |
if (tmp < 0) { \ |
777 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
778 |
} else { \
|
779 |
dest = src1 << tmp; \ |
780 |
if ((dest >> tmp) != src1) { \
|
781 |
SET_QC(); \ |
782 |
dest = ~0; \
|
783 |
} \ |
784 |
}} while (0) |
785 |
NEON_VOP_ENV(qrshl_u8, neon_u8, 4)
|
786 |
NEON_VOP_ENV(qrshl_u16, neon_u16, 2)
|
787 |
NEON_VOP_ENV(qrshl_u32, neon_u32, 1)
|
788 |
#undef NEON_FN
|
789 |
|
790 |
uint64_t HELPER(neon_qrshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
791 |
{ |
792 |
int8_t shift = (int8_t)shiftop; |
793 |
if (shift < 0) { |
794 |
val = (val + (1 << (-1 - shift))) >> -shift; |
795 |
} else { \
|
796 |
uint64_t tmp = val; |
797 |
val <<= shift; |
798 |
if ((val >> shift) != tmp) {
|
799 |
SET_QC(); |
800 |
val = ~0;
|
801 |
} |
802 |
} |
803 |
return val;
|
804 |
} |
805 |
|
806 |
#define NEON_FN(dest, src1, src2) do { \ |
807 |
int8_t tmp; \ |
808 |
tmp = (int8_t)src2; \ |
809 |
if (tmp < 0) { \ |
810 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
811 |
} else { \
|
812 |
dest = src1 << tmp; \ |
813 |
if ((dest >> tmp) != src1) { \
|
814 |
SET_QC(); \ |
815 |
dest = src1 >> 31; \
|
816 |
} \ |
817 |
}} while (0) |
818 |
NEON_VOP_ENV(qrshl_s8, neon_s8, 4)
|
819 |
NEON_VOP_ENV(qrshl_s16, neon_s16, 2)
|
820 |
NEON_VOP_ENV(qrshl_s32, neon_s32, 1)
|
821 |
#undef NEON_FN
|
822 |
|
823 |
uint64_t HELPER(neon_qrshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
824 |
{ |
825 |
int8_t shift = (uint8_t)shiftop; |
826 |
int64_t val = valop; |
827 |
|
828 |
if (shift < 0) { |
829 |
val = (val + (1 << (-1 - shift))) >> -shift; |
830 |
} else {
|
831 |
int64_t tmp = val;; |
832 |
val <<= shift; |
833 |
if ((val >> shift) != tmp) {
|
834 |
SET_QC(); |
835 |
val = tmp >> 31;
|
836 |
} |
837 |
} |
838 |
return val;
|
839 |
} |
840 |
|
841 |
uint32_t HELPER(neon_add_u8)(uint32_t a, uint32_t b) |
842 |
{ |
843 |
uint32_t mask; |
844 |
mask = (a ^ b) & 0x80808080u;
|
845 |
a &= ~0x80808080u;
|
846 |
b &= ~0x80808080u;
|
847 |
return (a + b) ^ mask;
|
848 |
} |
849 |
|
850 |
uint32_t HELPER(neon_add_u16)(uint32_t a, uint32_t b) |
851 |
{ |
852 |
uint32_t mask; |
853 |
mask = (a ^ b) & 0x80008000u;
|
854 |
a &= ~0x80008000u;
|
855 |
b &= ~0x80008000u;
|
856 |
return (a + b) ^ mask;
|
857 |
} |
858 |
|
859 |
#define NEON_FN(dest, src1, src2) dest = src1 + src2
|
860 |
NEON_POP(padd_u8, neon_u8, 4)
|
861 |
NEON_POP(padd_u16, neon_u16, 2)
|
862 |
#undef NEON_FN
|
863 |
|
864 |
#define NEON_FN(dest, src1, src2) dest = src1 - src2
|
865 |
NEON_VOP(sub_u8, neon_u8, 4)
|
866 |
NEON_VOP(sub_u16, neon_u16, 2)
|
867 |
#undef NEON_FN
|
868 |
|
869 |
#define NEON_FN(dest, src1, src2) dest = src1 * src2
|
870 |
NEON_VOP(mul_u8, neon_u8, 4)
|
871 |
NEON_VOP(mul_u16, neon_u16, 2)
|
872 |
#undef NEON_FN
|
873 |
|
874 |
/* Polynomial multiplication is like integer multiplication except the
|
875 |
partial products are XORed, not added. */
|
876 |
uint32_t HELPER(neon_mul_p8)(uint32_t op1, uint32_t op2) |
877 |
{ |
878 |
uint32_t mask; |
879 |
uint32_t result; |
880 |
result = 0;
|
881 |
while (op1) {
|
882 |
mask = 0;
|
883 |
if (op1 & 1) |
884 |
mask |= 0xff;
|
885 |
if (op1 & (1 << 8)) |
886 |
mask |= (0xff << 8); |
887 |
if (op1 & (1 << 16)) |
888 |
mask |= (0xff << 16); |
889 |
if (op1 & (1 << 24)) |
890 |
mask |= (0xff << 24); |
891 |
result ^= op2 & mask; |
892 |
op1 = (op1 >> 1) & 0x7f7f7f7f; |
893 |
op2 = (op2 << 1) & 0xfefefefe; |
894 |
} |
895 |
return result;
|
896 |
} |
897 |
|
898 |
uint64_t HELPER(neon_mull_p8)(uint32_t op1, uint32_t op2) |
899 |
{ |
900 |
uint64_t result = 0;
|
901 |
uint64_t mask; |
902 |
uint64_t op2ex = op2; |
903 |
op2ex = (op2ex & 0xff) |
|
904 |
((op2ex & 0xff00) << 8) | |
905 |
((op2ex & 0xff0000) << 16) | |
906 |
((op2ex & 0xff000000) << 24); |
907 |
while (op1) {
|
908 |
mask = 0;
|
909 |
if (op1 & 1) { |
910 |
mask |= 0xffff;
|
911 |
} |
912 |
if (op1 & (1 << 8)) { |
913 |
mask |= (0xffffU << 16); |
914 |
} |
915 |
if (op1 & (1 << 16)) { |
916 |
mask |= (0xffffULL << 32); |
917 |
} |
918 |
if (op1 & (1 << 24)) { |
919 |
mask |= (0xffffULL << 48); |
920 |
} |
921 |
result ^= op2ex & mask; |
922 |
op1 = (op1 >> 1) & 0x7f7f7f7f; |
923 |
op2ex <<= 1;
|
924 |
} |
925 |
return result;
|
926 |
} |
927 |
|
928 |
#define NEON_FN(dest, src1, src2) dest = (src1 & src2) ? -1 : 0 |
929 |
NEON_VOP(tst_u8, neon_u8, 4)
|
930 |
NEON_VOP(tst_u16, neon_u16, 2)
|
931 |
NEON_VOP(tst_u32, neon_u32, 1)
|
932 |
#undef NEON_FN
|
933 |
|
934 |
#define NEON_FN(dest, src1, src2) dest = (src1 == src2) ? -1 : 0 |
935 |
NEON_VOP(ceq_u8, neon_u8, 4)
|
936 |
NEON_VOP(ceq_u16, neon_u16, 2)
|
937 |
NEON_VOP(ceq_u32, neon_u32, 1)
|
938 |
#undef NEON_FN
|
939 |
|
940 |
#define NEON_FN(dest, src, dummy) dest = (src < 0) ? -src : src |
941 |
NEON_VOP1(abs_s8, neon_s8, 4)
|
942 |
NEON_VOP1(abs_s16, neon_s16, 2)
|
943 |
#undef NEON_FN
|
944 |
|
945 |
/* Count Leading Sign/Zero Bits. */
|
946 |
static inline int do_clz8(uint8_t x) |
947 |
{ |
948 |
int n;
|
949 |
for (n = 8; x; n--) |
950 |
x >>= 1;
|
951 |
return n;
|
952 |
} |
953 |
|
954 |
static inline int do_clz16(uint16_t x) |
955 |
{ |
956 |
int n;
|
957 |
for (n = 16; x; n--) |
958 |
x >>= 1;
|
959 |
return n;
|
960 |
} |
961 |
|
962 |
#define NEON_FN(dest, src, dummy) dest = do_clz8(src)
|
963 |
NEON_VOP1(clz_u8, neon_u8, 4)
|
964 |
#undef NEON_FN
|
965 |
|
966 |
#define NEON_FN(dest, src, dummy) dest = do_clz16(src)
|
967 |
NEON_VOP1(clz_u16, neon_u16, 2)
|
968 |
#undef NEON_FN
|
969 |
|
970 |
#define NEON_FN(dest, src, dummy) dest = do_clz8((src < 0) ? ~src : src) - 1 |
971 |
NEON_VOP1(cls_s8, neon_s8, 4)
|
972 |
#undef NEON_FN
|
973 |
|
974 |
#define NEON_FN(dest, src, dummy) dest = do_clz16((src < 0) ? ~src : src) - 1 |
975 |
NEON_VOP1(cls_s16, neon_s16, 2)
|
976 |
#undef NEON_FN
|
977 |
|
978 |
uint32_t HELPER(neon_cls_s32)(uint32_t x) |
979 |
{ |
980 |
int count;
|
981 |
if ((int32_t)x < 0) |
982 |
x = ~x; |
983 |
for (count = 32; x; count--) |
984 |
x = x >> 1;
|
985 |
return count - 1; |
986 |
} |
987 |
|
988 |
/* Bit count. */
|
989 |
uint32_t HELPER(neon_cnt_u8)(uint32_t x) |
990 |
{ |
991 |
x = (x & 0x55555555) + ((x >> 1) & 0x55555555); |
992 |
x = (x & 0x33333333) + ((x >> 2) & 0x33333333); |
993 |
x = (x & 0x0f0f0f0f) + ((x >> 4) & 0x0f0f0f0f); |
994 |
return x;
|
995 |
} |
996 |
|
997 |
#define NEON_QDMULH16(dest, src1, src2, round) do { \ |
998 |
uint32_t tmp = (int32_t)(int16_t) src1 * (int16_t) src2; \ |
999 |
if ((tmp ^ (tmp << 1)) & SIGNBIT) { \ |
1000 |
SET_QC(); \ |
1001 |
tmp = (tmp >> 31) ^ ~SIGNBIT; \
|
1002 |
} else { \
|
1003 |
tmp <<= 1; \
|
1004 |
} \ |
1005 |
if (round) { \
|
1006 |
int32_t old = tmp; \ |
1007 |
tmp += 1 << 15; \ |
1008 |
if ((int32_t)tmp < old) { \
|
1009 |
SET_QC(); \ |
1010 |
tmp = SIGNBIT - 1; \
|
1011 |
} \ |
1012 |
} \ |
1013 |
dest = tmp >> 16; \
|
1014 |
} while(0) |
1015 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 0) |
1016 |
NEON_VOP_ENV(qdmulh_s16, neon_s16, 2)
|
1017 |
#undef NEON_FN
|
1018 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 1) |
1019 |
NEON_VOP_ENV(qrdmulh_s16, neon_s16, 2)
|
1020 |
#undef NEON_FN
|
1021 |
#undef NEON_QDMULH16
|
1022 |
|
1023 |
#define NEON_QDMULH32(dest, src1, src2, round) do { \ |
1024 |
uint64_t tmp = (int64_t)(int32_t) src1 * (int32_t) src2; \ |
1025 |
if ((tmp ^ (tmp << 1)) & SIGNBIT64) { \ |
1026 |
SET_QC(); \ |
1027 |
tmp = (tmp >> 63) ^ ~SIGNBIT64; \
|
1028 |
} else { \
|
1029 |
tmp <<= 1; \
|
1030 |
} \ |
1031 |
if (round) { \
|
1032 |
int64_t old = tmp; \ |
1033 |
tmp += (int64_t)1 << 31; \ |
1034 |
if ((int64_t)tmp < old) { \
|
1035 |
SET_QC(); \ |
1036 |
tmp = SIGNBIT64 - 1; \
|
1037 |
} \ |
1038 |
} \ |
1039 |
dest = tmp >> 32; \
|
1040 |
} while(0) |
1041 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 0) |
1042 |
NEON_VOP_ENV(qdmulh_s32, neon_s32, 1)
|
1043 |
#undef NEON_FN
|
1044 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 1) |
1045 |
NEON_VOP_ENV(qrdmulh_s32, neon_s32, 1)
|
1046 |
#undef NEON_FN
|
1047 |
#undef NEON_QDMULH32
|
1048 |
|
1049 |
uint32_t HELPER(neon_narrow_u8)(uint64_t x) |
1050 |
{ |
1051 |
return (x & 0xffu) | ((x >> 8) & 0xff00u) | ((x >> 16) & 0xff0000u) |
1052 |
| ((x >> 24) & 0xff000000u); |
1053 |
} |
1054 |
|
1055 |
uint32_t HELPER(neon_narrow_u16)(uint64_t x) |
1056 |
{ |
1057 |
return (x & 0xffffu) | ((x >> 16) & 0xffff0000u); |
1058 |
} |
1059 |
|
1060 |
uint32_t HELPER(neon_narrow_high_u8)(uint64_t x) |
1061 |
{ |
1062 |
return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
1063 |
| ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
1064 |
} |
1065 |
|
1066 |
uint32_t HELPER(neon_narrow_high_u16)(uint64_t x) |
1067 |
{ |
1068 |
return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
1069 |
} |
1070 |
|
1071 |
uint32_t HELPER(neon_narrow_round_high_u8)(uint64_t x) |
1072 |
{ |
1073 |
x &= 0xff80ff80ff80ff80ull;
|
1074 |
x += 0x0080008000800080ull;
|
1075 |
return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
1076 |
| ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
1077 |
} |
1078 |
|
1079 |
uint32_t HELPER(neon_narrow_round_high_u16)(uint64_t x) |
1080 |
{ |
1081 |
x &= 0xffff8000ffff8000ull;
|
1082 |
x += 0x0000800000008000ull;
|
1083 |
return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
1084 |
} |
1085 |
|
1086 |
uint32_t HELPER(neon_unarrow_sat8)(CPUState *env, uint64_t x) |
1087 |
{ |
1088 |
uint16_t s; |
1089 |
uint8_t d; |
1090 |
uint32_t res = 0;
|
1091 |
#define SAT8(n) \
|
1092 |
s = x >> n; \ |
1093 |
if (s & 0x8000) { \ |
1094 |
SET_QC(); \ |
1095 |
} else { \
|
1096 |
if (s > 0xff) { \ |
1097 |
d = 0xff; \
|
1098 |
SET_QC(); \ |
1099 |
} else { \
|
1100 |
d = s; \ |
1101 |
} \ |
1102 |
res |= (uint32_t)d << (n / 2); \
|
1103 |
} |
1104 |
|
1105 |
SAT8(0);
|
1106 |
SAT8(16);
|
1107 |
SAT8(32);
|
1108 |
SAT8(48);
|
1109 |
#undef SAT8
|
1110 |
return res;
|
1111 |
} |
1112 |
|
1113 |
uint32_t HELPER(neon_narrow_sat_u8)(CPUState *env, uint64_t x) |
1114 |
{ |
1115 |
uint16_t s; |
1116 |
uint8_t d; |
1117 |
uint32_t res = 0;
|
1118 |
#define SAT8(n) \
|
1119 |
s = x >> n; \ |
1120 |
if (s > 0xff) { \ |
1121 |
d = 0xff; \
|
1122 |
SET_QC(); \ |
1123 |
} else { \
|
1124 |
d = s; \ |
1125 |
} \ |
1126 |
res |= (uint32_t)d << (n / 2);
|
1127 |
|
1128 |
SAT8(0);
|
1129 |
SAT8(16);
|
1130 |
SAT8(32);
|
1131 |
SAT8(48);
|
1132 |
#undef SAT8
|
1133 |
return res;
|
1134 |
} |
1135 |
|
1136 |
uint32_t HELPER(neon_narrow_sat_s8)(CPUState *env, uint64_t x) |
1137 |
{ |
1138 |
int16_t s; |
1139 |
uint8_t d; |
1140 |
uint32_t res = 0;
|
1141 |
#define SAT8(n) \
|
1142 |
s = x >> n; \ |
1143 |
if (s != (int8_t)s) { \
|
1144 |
d = (s >> 15) ^ 0x7f; \ |
1145 |
SET_QC(); \ |
1146 |
} else { \
|
1147 |
d = s; \ |
1148 |
} \ |
1149 |
res |= (uint32_t)d << (n / 2);
|
1150 |
|
1151 |
SAT8(0);
|
1152 |
SAT8(16);
|
1153 |
SAT8(32);
|
1154 |
SAT8(48);
|
1155 |
#undef SAT8
|
1156 |
return res;
|
1157 |
} |
1158 |
|
1159 |
uint32_t HELPER(neon_unarrow_sat16)(CPUState *env, uint64_t x) |
1160 |
{ |
1161 |
uint32_t high; |
1162 |
uint32_t low; |
1163 |
low = x; |
1164 |
if (low & 0x80000000) { |
1165 |
low = 0;
|
1166 |
SET_QC(); |
1167 |
} else if (low > 0xffff) { |
1168 |
low = 0xffff;
|
1169 |
SET_QC(); |
1170 |
} |
1171 |
high = x >> 32;
|
1172 |
if (high & 0x80000000) { |
1173 |
high = 0;
|
1174 |
SET_QC(); |
1175 |
} else if (high > 0xffff) { |
1176 |
high = 0xffff;
|
1177 |
SET_QC(); |
1178 |
} |
1179 |
return low | (high << 16); |
1180 |
} |
1181 |
|
1182 |
uint32_t HELPER(neon_narrow_sat_u16)(CPUState *env, uint64_t x) |
1183 |
{ |
1184 |
uint32_t high; |
1185 |
uint32_t low; |
1186 |
low = x; |
1187 |
if (low > 0xffff) { |
1188 |
low = 0xffff;
|
1189 |
SET_QC(); |
1190 |
} |
1191 |
high = x >> 32;
|
1192 |
if (high > 0xffff) { |
1193 |
high = 0xffff;
|
1194 |
SET_QC(); |
1195 |
} |
1196 |
return low | (high << 16); |
1197 |
} |
1198 |
|
1199 |
uint32_t HELPER(neon_narrow_sat_s16)(CPUState *env, uint64_t x) |
1200 |
{ |
1201 |
int32_t low; |
1202 |
int32_t high; |
1203 |
low = x; |
1204 |
if (low != (int16_t)low) {
|
1205 |
low = (low >> 31) ^ 0x7fff; |
1206 |
SET_QC(); |
1207 |
} |
1208 |
high = x >> 32;
|
1209 |
if (high != (int16_t)high) {
|
1210 |
high = (high >> 31) ^ 0x7fff; |
1211 |
SET_QC(); |
1212 |
} |
1213 |
return (uint16_t)low | (high << 16); |
1214 |
} |
1215 |
|
1216 |
uint32_t HELPER(neon_unarrow_sat32)(CPUState *env, uint64_t x) |
1217 |
{ |
1218 |
if (x & 0x8000000000000000ull) { |
1219 |
SET_QC(); |
1220 |
return 0; |
1221 |
} |
1222 |
if (x > 0xffffffffu) { |
1223 |
SET_QC(); |
1224 |
return 0xffffffffu; |
1225 |
} |
1226 |
return x;
|
1227 |
} |
1228 |
|
1229 |
uint32_t HELPER(neon_narrow_sat_u32)(CPUState *env, uint64_t x) |
1230 |
{ |
1231 |
if (x > 0xffffffffu) { |
1232 |
SET_QC(); |
1233 |
return 0xffffffffu; |
1234 |
} |
1235 |
return x;
|
1236 |
} |
1237 |
|
1238 |
uint32_t HELPER(neon_narrow_sat_s32)(CPUState *env, uint64_t x) |
1239 |
{ |
1240 |
if ((int64_t)x != (int32_t)x) {
|
1241 |
SET_QC(); |
1242 |
return ((int64_t)x >> 63) ^ 0x7fffffff; |
1243 |
} |
1244 |
return x;
|
1245 |
} |
1246 |
|
1247 |
uint64_t HELPER(neon_widen_u8)(uint32_t x) |
1248 |
{ |
1249 |
uint64_t tmp; |
1250 |
uint64_t ret; |
1251 |
ret = (uint8_t)x; |
1252 |
tmp = (uint8_t)(x >> 8);
|
1253 |
ret |= tmp << 16;
|
1254 |
tmp = (uint8_t)(x >> 16);
|
1255 |
ret |= tmp << 32;
|
1256 |
tmp = (uint8_t)(x >> 24);
|
1257 |
ret |= tmp << 48;
|
1258 |
return ret;
|
1259 |
} |
1260 |
|
1261 |
uint64_t HELPER(neon_widen_s8)(uint32_t x) |
1262 |
{ |
1263 |
uint64_t tmp; |
1264 |
uint64_t ret; |
1265 |
ret = (uint16_t)(int8_t)x; |
1266 |
tmp = (uint16_t)(int8_t)(x >> 8);
|
1267 |
ret |= tmp << 16;
|
1268 |
tmp = (uint16_t)(int8_t)(x >> 16);
|
1269 |
ret |= tmp << 32;
|
1270 |
tmp = (uint16_t)(int8_t)(x >> 24);
|
1271 |
ret |= tmp << 48;
|
1272 |
return ret;
|
1273 |
} |
1274 |
|
1275 |
uint64_t HELPER(neon_widen_u16)(uint32_t x) |
1276 |
{ |
1277 |
uint64_t high = (uint16_t)(x >> 16);
|
1278 |
return ((uint16_t)x) | (high << 32); |
1279 |
} |
1280 |
|
1281 |
uint64_t HELPER(neon_widen_s16)(uint32_t x) |
1282 |
{ |
1283 |
uint64_t high = (int16_t)(x >> 16);
|
1284 |
return ((uint32_t)(int16_t)x) | (high << 32); |
1285 |
} |
1286 |
|
1287 |
uint64_t HELPER(neon_addl_u16)(uint64_t a, uint64_t b) |
1288 |
{ |
1289 |
uint64_t mask; |
1290 |
mask = (a ^ b) & 0x8000800080008000ull;
|
1291 |
a &= ~0x8000800080008000ull;
|
1292 |
b &= ~0x8000800080008000ull;
|
1293 |
return (a + b) ^ mask;
|
1294 |
} |
1295 |
|
1296 |
uint64_t HELPER(neon_addl_u32)(uint64_t a, uint64_t b) |
1297 |
{ |
1298 |
uint64_t mask; |
1299 |
mask = (a ^ b) & 0x8000000080000000ull;
|
1300 |
a &= ~0x8000000080000000ull;
|
1301 |
b &= ~0x8000000080000000ull;
|
1302 |
return (a + b) ^ mask;
|
1303 |
} |
1304 |
|
1305 |
uint64_t HELPER(neon_paddl_u16)(uint64_t a, uint64_t b) |
1306 |
{ |
1307 |
uint64_t tmp; |
1308 |
uint64_t tmp2; |
1309 |
|
1310 |
tmp = a & 0x0000ffff0000ffffull;
|
1311 |
tmp += (a >> 16) & 0x0000ffff0000ffffull; |
1312 |
tmp2 = b & 0xffff0000ffff0000ull;
|
1313 |
tmp2 += (b << 16) & 0xffff0000ffff0000ull; |
1314 |
return ( tmp & 0xffff) |
1315 |
| ((tmp >> 16) & 0xffff0000ull) |
1316 |
| ((tmp2 << 16) & 0xffff00000000ull) |
1317 |
| ( tmp2 & 0xffff000000000000ull);
|
1318 |
} |
1319 |
|
1320 |
uint64_t HELPER(neon_paddl_u32)(uint64_t a, uint64_t b) |
1321 |
{ |
1322 |
uint32_t low = a + (a >> 32);
|
1323 |
uint32_t high = b + (b >> 32);
|
1324 |
return low + ((uint64_t)high << 32); |
1325 |
} |
1326 |
|
1327 |
uint64_t HELPER(neon_subl_u16)(uint64_t a, uint64_t b) |
1328 |
{ |
1329 |
uint64_t mask; |
1330 |
mask = (a ^ ~b) & 0x8000800080008000ull;
|
1331 |
a |= 0x8000800080008000ull;
|
1332 |
b &= ~0x8000800080008000ull;
|
1333 |
return (a - b) ^ mask;
|
1334 |
} |
1335 |
|
1336 |
uint64_t HELPER(neon_subl_u32)(uint64_t a, uint64_t b) |
1337 |
{ |
1338 |
uint64_t mask; |
1339 |
mask = (a ^ ~b) & 0x8000000080000000ull;
|
1340 |
a |= 0x8000000080000000ull;
|
1341 |
b &= ~0x8000000080000000ull;
|
1342 |
return (a - b) ^ mask;
|
1343 |
} |
1344 |
|
1345 |
uint64_t HELPER(neon_addl_saturate_s32)(CPUState *env, uint64_t a, uint64_t b) |
1346 |
{ |
1347 |
uint32_t x, y; |
1348 |
uint32_t low, high; |
1349 |
|
1350 |
x = a; |
1351 |
y = b; |
1352 |
low = x + y; |
1353 |
if (((low ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) {
|
1354 |
SET_QC(); |
1355 |
low = ((int32_t)x >> 31) ^ ~SIGNBIT;
|
1356 |
} |
1357 |
x = a >> 32;
|
1358 |
y = b >> 32;
|
1359 |
high = x + y; |
1360 |
if (((high ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) {
|
1361 |
SET_QC(); |
1362 |
high = ((int32_t)x >> 31) ^ ~SIGNBIT;
|
1363 |
} |
1364 |
return low | ((uint64_t)high << 32); |
1365 |
} |
1366 |
|
1367 |
uint64_t HELPER(neon_addl_saturate_s64)(CPUState *env, uint64_t a, uint64_t b) |
1368 |
{ |
1369 |
uint64_t result; |
1370 |
|
1371 |
result = a + b; |
1372 |
if (((result ^ a) & SIGNBIT64) && !((a ^ b) & SIGNBIT64)) {
|
1373 |
SET_QC(); |
1374 |
result = ((int64_t)a >> 63) ^ ~SIGNBIT64;
|
1375 |
} |
1376 |
return result;
|
1377 |
} |
1378 |
|
1379 |
#define DO_ABD(dest, x, y, type) do { \ |
1380 |
type tmp_x = x; \ |
1381 |
type tmp_y = y; \ |
1382 |
dest = ((tmp_x > tmp_y) ? tmp_x - tmp_y : tmp_y - tmp_x); \ |
1383 |
} while(0) |
1384 |
|
1385 |
uint64_t HELPER(neon_abdl_u16)(uint32_t a, uint32_t b) |
1386 |
{ |
1387 |
uint64_t tmp; |
1388 |
uint64_t result; |
1389 |
DO_ABD(result, a, b, uint8_t); |
1390 |
DO_ABD(tmp, a >> 8, b >> 8, uint8_t); |
1391 |
result |= tmp << 16;
|
1392 |
DO_ABD(tmp, a >> 16, b >> 16, uint8_t); |
1393 |
result |= tmp << 32;
|
1394 |
DO_ABD(tmp, a >> 24, b >> 24, uint8_t); |
1395 |
result |= tmp << 48;
|
1396 |
return result;
|
1397 |
} |
1398 |
|
1399 |
uint64_t HELPER(neon_abdl_s16)(uint32_t a, uint32_t b) |
1400 |
{ |
1401 |
uint64_t tmp; |
1402 |
uint64_t result; |
1403 |
DO_ABD(result, a, b, int8_t); |
1404 |
DO_ABD(tmp, a >> 8, b >> 8, int8_t); |
1405 |
result |= tmp << 16;
|
1406 |
DO_ABD(tmp, a >> 16, b >> 16, int8_t); |
1407 |
result |= tmp << 32;
|
1408 |
DO_ABD(tmp, a >> 24, b >> 24, int8_t); |
1409 |
result |= tmp << 48;
|
1410 |
return result;
|
1411 |
} |
1412 |
|
1413 |
uint64_t HELPER(neon_abdl_u32)(uint32_t a, uint32_t b) |
1414 |
{ |
1415 |
uint64_t tmp; |
1416 |
uint64_t result; |
1417 |
DO_ABD(result, a, b, uint16_t); |
1418 |
DO_ABD(tmp, a >> 16, b >> 16, uint16_t); |
1419 |
return result | (tmp << 32); |
1420 |
} |
1421 |
|
1422 |
uint64_t HELPER(neon_abdl_s32)(uint32_t a, uint32_t b) |
1423 |
{ |
1424 |
uint64_t tmp; |
1425 |
uint64_t result; |
1426 |
DO_ABD(result, a, b, int16_t); |
1427 |
DO_ABD(tmp, a >> 16, b >> 16, int16_t); |
1428 |
return result | (tmp << 32); |
1429 |
} |
1430 |
|
1431 |
uint64_t HELPER(neon_abdl_u64)(uint32_t a, uint32_t b) |
1432 |
{ |
1433 |
uint64_t result; |
1434 |
DO_ABD(result, a, b, uint32_t); |
1435 |
return result;
|
1436 |
} |
1437 |
|
1438 |
uint64_t HELPER(neon_abdl_s64)(uint32_t a, uint32_t b) |
1439 |
{ |
1440 |
uint64_t result; |
1441 |
DO_ABD(result, a, b, int32_t); |
1442 |
return result;
|
1443 |
} |
1444 |
#undef DO_ABD
|
1445 |
|
1446 |
/* Widening multiply. Named type is the source type. */
|
1447 |
#define DO_MULL(dest, x, y, type1, type2) do { \ |
1448 |
type1 tmp_x = x; \ |
1449 |
type1 tmp_y = y; \ |
1450 |
dest = (type2)((type2)tmp_x * (type2)tmp_y); \ |
1451 |
} while(0) |
1452 |
|
1453 |
uint64_t HELPER(neon_mull_u8)(uint32_t a, uint32_t b) |
1454 |
{ |
1455 |
uint64_t tmp; |
1456 |
uint64_t result; |
1457 |
|
1458 |
DO_MULL(result, a, b, uint8_t, uint16_t); |
1459 |
DO_MULL(tmp, a >> 8, b >> 8, uint8_t, uint16_t); |
1460 |
result |= tmp << 16;
|
1461 |
DO_MULL(tmp, a >> 16, b >> 16, uint8_t, uint16_t); |
1462 |
result |= tmp << 32;
|
1463 |
DO_MULL(tmp, a >> 24, b >> 24, uint8_t, uint16_t); |
1464 |
result |= tmp << 48;
|
1465 |
return result;
|
1466 |
} |
1467 |
|
1468 |
uint64_t HELPER(neon_mull_s8)(uint32_t a, uint32_t b) |
1469 |
{ |
1470 |
uint64_t tmp; |
1471 |
uint64_t result; |
1472 |
|
1473 |
DO_MULL(result, a, b, int8_t, uint16_t); |
1474 |
DO_MULL(tmp, a >> 8, b >> 8, int8_t, uint16_t); |
1475 |
result |= tmp << 16;
|
1476 |
DO_MULL(tmp, a >> 16, b >> 16, int8_t, uint16_t); |
1477 |
result |= tmp << 32;
|
1478 |
DO_MULL(tmp, a >> 24, b >> 24, int8_t, uint16_t); |
1479 |
result |= tmp << 48;
|
1480 |
return result;
|
1481 |
} |
1482 |
|
1483 |
uint64_t HELPER(neon_mull_u16)(uint32_t a, uint32_t b) |
1484 |
{ |
1485 |
uint64_t tmp; |
1486 |
uint64_t result; |
1487 |
|
1488 |
DO_MULL(result, a, b, uint16_t, uint32_t); |
1489 |
DO_MULL(tmp, a >> 16, b >> 16, uint16_t, uint32_t); |
1490 |
return result | (tmp << 32); |
1491 |
} |
1492 |
|
1493 |
uint64_t HELPER(neon_mull_s16)(uint32_t a, uint32_t b) |
1494 |
{ |
1495 |
uint64_t tmp; |
1496 |
uint64_t result; |
1497 |
|
1498 |
DO_MULL(result, a, b, int16_t, uint32_t); |
1499 |
DO_MULL(tmp, a >> 16, b >> 16, int16_t, uint32_t); |
1500 |
return result | (tmp << 32); |
1501 |
} |
1502 |
|
1503 |
uint64_t HELPER(neon_negl_u16)(uint64_t x) |
1504 |
{ |
1505 |
uint16_t tmp; |
1506 |
uint64_t result; |
1507 |
result = (uint16_t)-x; |
1508 |
tmp = -(x >> 16);
|
1509 |
result |= (uint64_t)tmp << 16;
|
1510 |
tmp = -(x >> 32);
|
1511 |
result |= (uint64_t)tmp << 32;
|
1512 |
tmp = -(x >> 48);
|
1513 |
result |= (uint64_t)tmp << 48;
|
1514 |
return result;
|
1515 |
} |
1516 |
|
1517 |
uint64_t HELPER(neon_negl_u32)(uint64_t x) |
1518 |
{ |
1519 |
uint32_t low = -x; |
1520 |
uint32_t high = -(x >> 32);
|
1521 |
return low | ((uint64_t)high << 32); |
1522 |
} |
1523 |
|
1524 |
/* FIXME: There should be a native op for this. */
|
1525 |
uint64_t HELPER(neon_negl_u64)(uint64_t x) |
1526 |
{ |
1527 |
return -x;
|
1528 |
} |
1529 |
|
1530 |
/* Saturnating sign manuipulation. */
|
1531 |
/* ??? Make these use NEON_VOP1 */
|
1532 |
#define DO_QABS8(x) do { \ |
1533 |
if (x == (int8_t)0x80) { \ |
1534 |
x = 0x7f; \
|
1535 |
SET_QC(); \ |
1536 |
} else if (x < 0) { \ |
1537 |
x = -x; \ |
1538 |
}} while (0) |
1539 |
uint32_t HELPER(neon_qabs_s8)(CPUState *env, uint32_t x) |
1540 |
{ |
1541 |
neon_s8 vec; |
1542 |
NEON_UNPACK(neon_s8, vec, x); |
1543 |
DO_QABS8(vec.v1); |
1544 |
DO_QABS8(vec.v2); |
1545 |
DO_QABS8(vec.v3); |
1546 |
DO_QABS8(vec.v4); |
1547 |
NEON_PACK(neon_s8, x, vec); |
1548 |
return x;
|
1549 |
} |
1550 |
#undef DO_QABS8
|
1551 |
|
1552 |
#define DO_QNEG8(x) do { \ |
1553 |
if (x == (int8_t)0x80) { \ |
1554 |
x = 0x7f; \
|
1555 |
SET_QC(); \ |
1556 |
} else { \
|
1557 |
x = -x; \ |
1558 |
}} while (0) |
1559 |
uint32_t HELPER(neon_qneg_s8)(CPUState *env, uint32_t x) |
1560 |
{ |
1561 |
neon_s8 vec; |
1562 |
NEON_UNPACK(neon_s8, vec, x); |
1563 |
DO_QNEG8(vec.v1); |
1564 |
DO_QNEG8(vec.v2); |
1565 |
DO_QNEG8(vec.v3); |
1566 |
DO_QNEG8(vec.v4); |
1567 |
NEON_PACK(neon_s8, x, vec); |
1568 |
return x;
|
1569 |
} |
1570 |
#undef DO_QNEG8
|
1571 |
|
1572 |
#define DO_QABS16(x) do { \ |
1573 |
if (x == (int16_t)0x8000) { \ |
1574 |
x = 0x7fff; \
|
1575 |
SET_QC(); \ |
1576 |
} else if (x < 0) { \ |
1577 |
x = -x; \ |
1578 |
}} while (0) |
1579 |
uint32_t HELPER(neon_qabs_s16)(CPUState *env, uint32_t x) |
1580 |
{ |
1581 |
neon_s16 vec; |
1582 |
NEON_UNPACK(neon_s16, vec, x); |
1583 |
DO_QABS16(vec.v1); |
1584 |
DO_QABS16(vec.v2); |
1585 |
NEON_PACK(neon_s16, x, vec); |
1586 |
return x;
|
1587 |
} |
1588 |
#undef DO_QABS16
|
1589 |
|
1590 |
#define DO_QNEG16(x) do { \ |
1591 |
if (x == (int16_t)0x8000) { \ |
1592 |
x = 0x7fff; \
|
1593 |
SET_QC(); \ |
1594 |
} else { \
|
1595 |
x = -x; \ |
1596 |
}} while (0) |
1597 |
uint32_t HELPER(neon_qneg_s16)(CPUState *env, uint32_t x) |
1598 |
{ |
1599 |
neon_s16 vec; |
1600 |
NEON_UNPACK(neon_s16, vec, x); |
1601 |
DO_QNEG16(vec.v1); |
1602 |
DO_QNEG16(vec.v2); |
1603 |
NEON_PACK(neon_s16, x, vec); |
1604 |
return x;
|
1605 |
} |
1606 |
#undef DO_QNEG16
|
1607 |
|
1608 |
uint32_t HELPER(neon_qabs_s32)(CPUState *env, uint32_t x) |
1609 |
{ |
1610 |
if (x == SIGNBIT) {
|
1611 |
SET_QC(); |
1612 |
x = ~SIGNBIT; |
1613 |
} else if ((int32_t)x < 0) { |
1614 |
x = -x; |
1615 |
} |
1616 |
return x;
|
1617 |
} |
1618 |
|
1619 |
uint32_t HELPER(neon_qneg_s32)(CPUState *env, uint32_t x) |
1620 |
{ |
1621 |
if (x == SIGNBIT) {
|
1622 |
SET_QC(); |
1623 |
x = ~SIGNBIT; |
1624 |
} else {
|
1625 |
x = -x; |
1626 |
} |
1627 |
return x;
|
1628 |
} |
1629 |
|
1630 |
/* NEON Float helpers. */
|
1631 |
uint32_t HELPER(neon_min_f32)(uint32_t a, uint32_t b) |
1632 |
{ |
1633 |
float32 f0 = vfp_itos(a); |
1634 |
float32 f1 = vfp_itos(b); |
1635 |
return (float32_compare_quiet(f0, f1, NFS) == -1) ? a : b; |
1636 |
} |
1637 |
|
1638 |
uint32_t HELPER(neon_max_f32)(uint32_t a, uint32_t b) |
1639 |
{ |
1640 |
float32 f0 = vfp_itos(a); |
1641 |
float32 f1 = vfp_itos(b); |
1642 |
return (float32_compare_quiet(f0, f1, NFS) == 1) ? a : b; |
1643 |
} |
1644 |
|
1645 |
uint32_t HELPER(neon_abd_f32)(uint32_t a, uint32_t b) |
1646 |
{ |
1647 |
float32 f0 = vfp_itos(a); |
1648 |
float32 f1 = vfp_itos(b); |
1649 |
return vfp_stoi((float32_compare_quiet(f0, f1, NFS) == 1) |
1650 |
? float32_sub(f0, f1, NFS) |
1651 |
: float32_sub(f1, f0, NFS)); |
1652 |
} |
1653 |
|
1654 |
uint32_t HELPER(neon_add_f32)(uint32_t a, uint32_t b) |
1655 |
{ |
1656 |
return vfp_stoi(float32_add(vfp_itos(a), vfp_itos(b), NFS));
|
1657 |
} |
1658 |
|
1659 |
uint32_t HELPER(neon_sub_f32)(uint32_t a, uint32_t b) |
1660 |
{ |
1661 |
return vfp_stoi(float32_sub(vfp_itos(a), vfp_itos(b), NFS));
|
1662 |
} |
1663 |
|
1664 |
uint32_t HELPER(neon_mul_f32)(uint32_t a, uint32_t b) |
1665 |
{ |
1666 |
return vfp_stoi(float32_mul(vfp_itos(a), vfp_itos(b), NFS));
|
1667 |
} |
1668 |
|
1669 |
/* Floating point comparisons produce an integer result. */
|
1670 |
#define NEON_VOP_FCMP(name, cmp) \
|
1671 |
uint32_t HELPER(neon_##name)(uint32_t a, uint32_t b) \ |
1672 |
{ \ |
1673 |
if (float32_compare_quiet(vfp_itos(a), vfp_itos(b), NFS) cmp 0) \ |
1674 |
return ~0; \ |
1675 |
else \
|
1676 |
return 0; \ |
1677 |
} |
1678 |
|
1679 |
NEON_VOP_FCMP(ceq_f32, ==) |
1680 |
NEON_VOP_FCMP(cge_f32, >=) |
1681 |
NEON_VOP_FCMP(cgt_f32, >) |
1682 |
|
1683 |
uint32_t HELPER(neon_acge_f32)(uint32_t a, uint32_t b) |
1684 |
{ |
1685 |
float32 f0 = float32_abs(vfp_itos(a)); |
1686 |
float32 f1 = float32_abs(vfp_itos(b)); |
1687 |
return (float32_compare_quiet(f0, f1,NFS) >= 0) ? ~0 : 0; |
1688 |
} |
1689 |
|
1690 |
uint32_t HELPER(neon_acgt_f32)(uint32_t a, uint32_t b) |
1691 |
{ |
1692 |
float32 f0 = float32_abs(vfp_itos(a)); |
1693 |
float32 f1 = float32_abs(vfp_itos(b)); |
1694 |
return (float32_compare_quiet(f0, f1, NFS) > 0) ? ~0 : 0; |
1695 |
} |