root / target-arm / neon_helper.c @ e677137d
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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 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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#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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#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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#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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#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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} |
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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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} |
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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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int32_t HELPER(neon_hsub_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_hsub_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) ? ~0 : 0 |
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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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#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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#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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NEON_VOP(max_s16, neon_s16, 2)
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NEON_VOP(max_u16, neon_u16, 2)
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NEON_VOP(max_s32, neon_s32, 1)
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NEON_VOP(max_u32, neon_u32, 1)
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NEON_POP(pmax_s8, neon_s8, 4)
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NEON_POP(pmax_u8, neon_u8, 4)
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NEON_POP(pmax_s16, neon_s16, 2)
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NEON_POP(pmax_u16, neon_u16, 2)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) \
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dest = (src1 > src2) ? (src1 - src2) : (src2 - src1) |
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NEON_VOP(abd_s8, neon_s8, 4)
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NEON_VOP(abd_u8, neon_u8, 4)
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NEON_VOP(abd_s16, neon_s16, 2)
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NEON_VOP(abd_u16, neon_u16, 2)
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NEON_VOP(abd_s32, neon_s32, 1)
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NEON_VOP(abd_u32, neon_u32, 1)
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#undef NEON_FN
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#define NEON_FN(dest, src1, src2) do { \ |
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int8_t tmp; \ |
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tmp = (int8_t)src2; \ |
| 395 |
if (tmp >= sizeof(src1) * 8 || tmp <= -sizeof(src1) * 8) { \ |
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dest = 0; \
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} else if (tmp < 0) { \ |
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dest = src1 >> -tmp; \ |
| 399 |
} else { \
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dest = src1 << tmp; \ |
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}} while (0) |
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NEON_VOP(shl_u8, neon_u8, 4)
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NEON_VOP(shl_u16, neon_u16, 2)
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NEON_VOP(shl_u32, neon_u32, 1)
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#undef NEON_FN
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|
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uint64_t HELPER(neon_shl_u64)(uint64_t val, uint64_t shiftop) |
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{
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int8_t shift = (int8_t)shiftop; |
| 410 |
if (shift >= 64 || shift <= -64) { |
| 411 |
val = 0;
|
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} else if (shift < 0) { |
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val >>= -shift; |
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} else {
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val <<= shift; |
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} |
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return val;
|
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} |
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|
| 420 |
#define NEON_FN(dest, src1, src2) do { \ |
| 421 |
int8_t tmp; \ |
| 422 |
tmp = (int8_t)src2; \ |
| 423 |
if (tmp >= sizeof(src1) * 8) { \ |
| 424 |
dest = 0; \
|
| 425 |
} else if (tmp <= -sizeof(src1) * 8) { \ |
| 426 |
dest = src1 >> (sizeof(src1) * 8 - 1); \ |
| 427 |
} else if (tmp < 0) { \ |
| 428 |
dest = src1 >> -tmp; \ |
| 429 |
} else { \
|
| 430 |
dest = src1 << tmp; \ |
| 431 |
}} while (0) |
| 432 |
NEON_VOP(shl_s8, neon_s8, 4)
|
| 433 |
NEON_VOP(shl_s16, neon_s16, 2)
|
| 434 |
NEON_VOP(shl_s32, neon_s32, 1)
|
| 435 |
#undef NEON_FN
|
| 436 |
|
| 437 |
uint64_t HELPER(neon_shl_s64)(uint64_t valop, uint64_t shiftop) |
| 438 |
{
|
| 439 |
int8_t shift = (int8_t)shiftop; |
| 440 |
int64_t val = valop; |
| 441 |
if (shift >= 64) { |
| 442 |
val = 0;
|
| 443 |
} else if (shift <= -64) { |
| 444 |
val >>= 63;
|
| 445 |
} else if (shift < 0) { |
| 446 |
val >>= -shift; |
| 447 |
} else {
|
| 448 |
val <<= shift; |
| 449 |
} |
| 450 |
return val;
|
| 451 |
} |
| 452 |
|
| 453 |
#define NEON_FN(dest, src1, src2) do { \ |
| 454 |
int8_t tmp; \ |
| 455 |
tmp = (int8_t)src2; \ |
| 456 |
if (tmp >= sizeof(src1) * 8) { \ |
| 457 |
dest = 0; \
|
| 458 |
} else if (tmp < -sizeof(src1) * 8) { \ |
| 459 |
dest >>= sizeof(src1) * 8 - 1; \ |
| 460 |
} else if (tmp == -sizeof(src1) * 8) { \ |
| 461 |
dest = src1 >> (tmp - 1); \
|
| 462 |
dest++; \ |
| 463 |
src2 >>= 1; \
|
| 464 |
} else if (tmp < 0) { \ |
| 465 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 466 |
} else { \
|
| 467 |
dest = src1 << tmp; \ |
| 468 |
}} while (0) |
| 469 |
NEON_VOP(rshl_s8, neon_s8, 4)
|
| 470 |
NEON_VOP(rshl_s16, neon_s16, 2)
|
| 471 |
NEON_VOP(rshl_s32, neon_s32, 1)
|
| 472 |
#undef NEON_FN
|
| 473 |
|
| 474 |
uint64_t HELPER(neon_rshl_s64)(uint64_t valop, uint64_t shiftop) |
| 475 |
{
|
| 476 |
int8_t shift = (int8_t)shiftop; |
| 477 |
int64_t val = valop; |
| 478 |
if (shift >= 64) { |
| 479 |
val = 0;
|
| 480 |
} else if (shift < -64) { |
| 481 |
val >>= 63;
|
| 482 |
} else if (shift == -63) { |
| 483 |
val >>= 63;
|
| 484 |
val++; |
| 485 |
val >>= 1;
|
| 486 |
} else if (shift < 0) { |
| 487 |
val = (val + ((int64_t)1 << (-1 - shift))) >> -shift; |
| 488 |
} else {
|
| 489 |
val <<= shift; |
| 490 |
} |
| 491 |
return val;
|
| 492 |
} |
| 493 |
|
| 494 |
#define NEON_FN(dest, src1, src2) do { \ |
| 495 |
int8_t tmp; \ |
| 496 |
tmp = (int8_t)src2; \ |
| 497 |
if (tmp >= sizeof(src1) * 8 || tmp < -sizeof(src1) * 8) { \ |
| 498 |
dest = 0; \
|
| 499 |
} else if (tmp == -sizeof(src1) * 8) { \ |
| 500 |
dest = src1 >> (tmp - 1); \
|
| 501 |
} else if (tmp < 0) { \ |
| 502 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 503 |
} else { \
|
| 504 |
dest = src1 << tmp; \ |
| 505 |
}} while (0) |
| 506 |
NEON_VOP(rshl_u8, neon_u8, 4)
|
| 507 |
NEON_VOP(rshl_u16, neon_u16, 2)
|
| 508 |
NEON_VOP(rshl_u32, neon_u32, 1)
|
| 509 |
#undef NEON_FN
|
| 510 |
|
| 511 |
uint64_t HELPER(neon_rshl_u64)(uint64_t val, uint64_t shiftop) |
| 512 |
{
|
| 513 |
int8_t shift = (uint8_t)shiftop; |
| 514 |
if (shift >= 64 || shift < 64) { |
| 515 |
val = 0;
|
| 516 |
} else if (shift == -64) { |
| 517 |
/* Rounding a 1-bit result just preserves that bit. */
|
| 518 |
val >>= 63;
|
| 519 |
} if (shift < 0) { |
| 520 |
val = (val + ((uint64_t)1 << (-1 - shift))) >> -shift; |
| 521 |
val >>= -shift; |
| 522 |
} else {
|
| 523 |
val <<= shift; |
| 524 |
} |
| 525 |
return val;
|
| 526 |
} |
| 527 |
|
| 528 |
#define NEON_FN(dest, src1, src2) do { \ |
| 529 |
int8_t tmp; \ |
| 530 |
tmp = (int8_t)src2; \ |
| 531 |
if (tmp >= sizeof(src1) * 8) { \ |
| 532 |
if (src1) { \
|
| 533 |
SET_QC(); \ |
| 534 |
dest = ~0; \
|
| 535 |
} else { \
|
| 536 |
dest = 0; \
|
| 537 |
} \ |
| 538 |
} else if (tmp <= -sizeof(src1) * 8) { \ |
| 539 |
dest = 0; \
|
| 540 |
} else if (tmp < 0) { \ |
| 541 |
dest = src1 >> -tmp; \ |
| 542 |
} else { \
|
| 543 |
dest = src1 << tmp; \ |
| 544 |
if ((dest >> tmp) != src1) { \
|
| 545 |
SET_QC(); \ |
| 546 |
dest = ~0; \
|
| 547 |
} \ |
| 548 |
}} while (0) |
| 549 |
NEON_VOP_ENV(qshl_u8, neon_u8, 4)
|
| 550 |
NEON_VOP_ENV(qshl_u16, neon_u16, 2)
|
| 551 |
NEON_VOP_ENV(qshl_u32, neon_u32, 1)
|
| 552 |
#undef NEON_FN
|
| 553 |
|
| 554 |
uint64_t HELPER(neon_qshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
| 555 |
{
|
| 556 |
int8_t shift = (int8_t)shiftop; |
| 557 |
if (shift >= 64) { |
| 558 |
if (val) {
|
| 559 |
val = ~(uint64_t)0;
|
| 560 |
SET_QC(); |
| 561 |
} else {
|
| 562 |
val = 0;
|
| 563 |
} |
| 564 |
} else if (shift <= -64) { |
| 565 |
val = 0;
|
| 566 |
} else if (shift < 0) { |
| 567 |
val >>= -shift; |
| 568 |
} else {
|
| 569 |
uint64_t tmp = val; |
| 570 |
val <<= shift; |
| 571 |
if ((val >> shift) != tmp) {
|
| 572 |
SET_QC(); |
| 573 |
val = ~(uint64_t)0;
|
| 574 |
} |
| 575 |
} |
| 576 |
return val;
|
| 577 |
} |
| 578 |
|
| 579 |
#define NEON_FN(dest, src1, src2) do { \ |
| 580 |
int8_t tmp; \ |
| 581 |
tmp = (int8_t)src2; \ |
| 582 |
if (tmp >= sizeof(src1) * 8) { \ |
| 583 |
if (src1) \
|
| 584 |
SET_QC(); \ |
| 585 |
dest = src1 >> 31; \
|
| 586 |
} else if (tmp <= -sizeof(src1) * 8) { \ |
| 587 |
dest = src1 >> 31; \
|
| 588 |
} else if (tmp < 0) { \ |
| 589 |
dest = src1 >> -tmp; \ |
| 590 |
} else { \
|
| 591 |
dest = src1 << tmp; \ |
| 592 |
if ((dest >> tmp) != src1) { \
|
| 593 |
SET_QC(); \ |
| 594 |
dest = src2 >> 31; \
|
| 595 |
} \ |
| 596 |
}} while (0) |
| 597 |
NEON_VOP_ENV(qshl_s8, neon_s8, 4)
|
| 598 |
NEON_VOP_ENV(qshl_s16, neon_s16, 2)
|
| 599 |
NEON_VOP_ENV(qshl_s32, neon_s32, 1)
|
| 600 |
#undef NEON_FN
|
| 601 |
|
| 602 |
uint64_t HELPER(neon_qshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
| 603 |
{
|
| 604 |
int8_t shift = (uint8_t)shiftop; |
| 605 |
int64_t val = valop; |
| 606 |
if (shift >= 64) { |
| 607 |
if (val) {
|
| 608 |
SET_QC(); |
| 609 |
val = (val >> 63) & ~SIGNBIT64;
|
| 610 |
} |
| 611 |
} else if (shift <= 64) { |
| 612 |
val >>= 63;
|
| 613 |
} else if (shift < 0) { |
| 614 |
val >>= -shift; |
| 615 |
} else {
|
| 616 |
int64_t tmp = val; |
| 617 |
val <<= shift; |
| 618 |
if ((val >> shift) != tmp) {
|
| 619 |
SET_QC(); |
| 620 |
val = (tmp >> 63) ^ ~SIGNBIT64;
|
| 621 |
} |
| 622 |
} |
| 623 |
return val;
|
| 624 |
} |
| 625 |
|
| 626 |
|
| 627 |
/* FIXME: This is wrong. */
|
| 628 |
#define NEON_FN(dest, src1, src2) do { \ |
| 629 |
int8_t tmp; \ |
| 630 |
tmp = (int8_t)src2; \ |
| 631 |
if (tmp < 0) { \ |
| 632 |
dest = (src1 + (1 << (-1 - tmp))) >> -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(qrshl_u8, neon_u8, 4)
|
| 641 |
NEON_VOP_ENV(qrshl_u16, neon_u16, 2)
|
| 642 |
NEON_VOP_ENV(qrshl_u32, neon_u32, 1)
|
| 643 |
#undef NEON_FN
|
| 644 |
|
| 645 |
uint64_t HELPER(neon_qrshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop) |
| 646 |
{
|
| 647 |
int8_t shift = (int8_t)shiftop; |
| 648 |
if (shift < 0) { |
| 649 |
val = (val + (1 << (-1 - shift))) >> -shift; |
| 650 |
} else { \
|
| 651 |
uint64_t tmp = val; |
| 652 |
val <<= shift; |
| 653 |
if ((val >> shift) != tmp) {
|
| 654 |
SET_QC(); |
| 655 |
val = ~0;
|
| 656 |
} |
| 657 |
} |
| 658 |
return val;
|
| 659 |
} |
| 660 |
|
| 661 |
#define NEON_FN(dest, src1, src2) do { \ |
| 662 |
int8_t tmp; \ |
| 663 |
tmp = (int8_t)src2; \ |
| 664 |
if (tmp < 0) { \ |
| 665 |
dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ |
| 666 |
} else { \
|
| 667 |
dest = src1 << tmp; \ |
| 668 |
if ((dest >> tmp) != src1) { \
|
| 669 |
SET_QC(); \ |
| 670 |
dest = src1 >> 31; \
|
| 671 |
} \ |
| 672 |
}} while (0) |
| 673 |
NEON_VOP_ENV(qrshl_s8, neon_s8, 4)
|
| 674 |
NEON_VOP_ENV(qrshl_s16, neon_s16, 2)
|
| 675 |
NEON_VOP_ENV(qrshl_s32, neon_s32, 1)
|
| 676 |
#undef NEON_FN
|
| 677 |
|
| 678 |
uint64_t HELPER(neon_qrshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop) |
| 679 |
{
|
| 680 |
int8_t shift = (uint8_t)shiftop; |
| 681 |
int64_t val = valop; |
| 682 |
|
| 683 |
if (shift < 0) { |
| 684 |
val = (val + (1 << (-1 - shift))) >> -shift; |
| 685 |
} else {
|
| 686 |
int64_t tmp = val;; |
| 687 |
val <<= shift; |
| 688 |
if ((val >> shift) != tmp) {
|
| 689 |
SET_QC(); |
| 690 |
val = tmp >> 31;
|
| 691 |
} |
| 692 |
} |
| 693 |
return val;
|
| 694 |
} |
| 695 |
|
| 696 |
uint32_t HELPER(neon_add_u8)(uint32_t a, uint32_t b) |
| 697 |
{
|
| 698 |
uint32_t mask; |
| 699 |
mask = (a ^ b) & 0x80808080u;
|
| 700 |
a &= ~0x80808080u;
|
| 701 |
b &= ~0x80808080u;
|
| 702 |
return (a + b) ^ mask;
|
| 703 |
} |
| 704 |
|
| 705 |
uint32_t HELPER(neon_add_u16)(uint32_t a, uint32_t b) |
| 706 |
{
|
| 707 |
uint32_t mask; |
| 708 |
mask = (a ^ b) & 0x80008000u;
|
| 709 |
a &= ~0x80008000u;
|
| 710 |
b &= ~0x80008000u;
|
| 711 |
return (a + b) ^ mask;
|
| 712 |
} |
| 713 |
|
| 714 |
#define NEON_FN(dest, src1, src2) dest = src1 + src2
|
| 715 |
NEON_POP(padd_u8, neon_u8, 4)
|
| 716 |
NEON_POP(padd_u16, neon_u16, 2)
|
| 717 |
#undef NEON_FN
|
| 718 |
|
| 719 |
#define NEON_FN(dest, src1, src2) dest = src1 - src2
|
| 720 |
NEON_VOP(sub_u8, neon_u8, 4)
|
| 721 |
NEON_VOP(sub_u16, neon_u16, 2)
|
| 722 |
#undef NEON_FN
|
| 723 |
|
| 724 |
#define NEON_FN(dest, src1, src2) dest = src1 * src2
|
| 725 |
NEON_VOP(mul_u8, neon_u8, 4)
|
| 726 |
NEON_VOP(mul_u16, neon_u16, 2)
|
| 727 |
#undef NEON_FN
|
| 728 |
|
| 729 |
/* Polynomial multiplication is like integer multiplcation except the
|
| 730 |
partial products are XORed, not added. */
|
| 731 |
uint32_t HELPER(neon_mul_p8)(uint32_t op1, uint32_t op2) |
| 732 |
{
|
| 733 |
uint32_t mask; |
| 734 |
uint32_t result; |
| 735 |
result = 0;
|
| 736 |
while (op1) {
|
| 737 |
mask = 0;
|
| 738 |
if (op1 & 1) |
| 739 |
mask |= 0xff;
|
| 740 |
if (op1 & (1 << 8)) |
| 741 |
mask |= (0xff << 8); |
| 742 |
if (op1 & (1 << 16)) |
| 743 |
mask |= (0xff << 16); |
| 744 |
if (op1 & (1 << 24)) |
| 745 |
mask |= (0xff << 24); |
| 746 |
result ^= op2 & mask; |
| 747 |
op1 = (op1 >> 1) & 0x7f7f7f7f; |
| 748 |
op2 = (op2 << 1) & 0xfefefefe; |
| 749 |
} |
| 750 |
return result;
|
| 751 |
} |
| 752 |
|
| 753 |
#define NEON_FN(dest, src1, src2) dest = (src1 & src2) ? -1 : 0 |
| 754 |
NEON_VOP(tst_u8, neon_u8, 4)
|
| 755 |
NEON_VOP(tst_u16, neon_u16, 2)
|
| 756 |
NEON_VOP(tst_u32, neon_u32, 1)
|
| 757 |
#undef NEON_FN
|
| 758 |
|
| 759 |
#define NEON_FN(dest, src1, src2) dest = (src1 == src2) ? -1 : 0 |
| 760 |
NEON_VOP(ceq_u8, neon_u8, 4)
|
| 761 |
NEON_VOP(ceq_u16, neon_u16, 2)
|
| 762 |
NEON_VOP(ceq_u32, neon_u32, 1)
|
| 763 |
#undef NEON_FN
|
| 764 |
|
| 765 |
#define NEON_FN(dest, src, dummy) dest = (src < 0) ? -src : src |
| 766 |
NEON_VOP1(abs_s8, neon_s8, 4)
|
| 767 |
NEON_VOP1(abs_s16, neon_s16, 2)
|
| 768 |
#undef NEON_FN
|
| 769 |
|
| 770 |
/* Count Leading Sign/Zero Bits. */
|
| 771 |
static inline int do_clz8(uint8_t x) |
| 772 |
{
|
| 773 |
int n;
|
| 774 |
for (n = 8; x; n--) |
| 775 |
x >>= 1;
|
| 776 |
return n;
|
| 777 |
} |
| 778 |
|
| 779 |
static inline int do_clz16(uint16_t x) |
| 780 |
{
|
| 781 |
int n;
|
| 782 |
for (n = 16; x; n--) |
| 783 |
x >>= 1;
|
| 784 |
return n;
|
| 785 |
} |
| 786 |
|
| 787 |
#define NEON_FN(dest, src, dummy) dest = do_clz8(src)
|
| 788 |
NEON_VOP1(clz_u8, neon_u8, 4)
|
| 789 |
#undef NEON_FN
|
| 790 |
|
| 791 |
#define NEON_FN(dest, src, dummy) dest = do_clz16(src)
|
| 792 |
NEON_VOP1(clz_u16, neon_u16, 2)
|
| 793 |
#undef NEON_FN
|
| 794 |
|
| 795 |
#define NEON_FN(dest, src, dummy) dest = do_clz8((src < 0) ? ~src : src) - 1 |
| 796 |
NEON_VOP1(cls_s8, neon_s8, 4)
|
| 797 |
#undef NEON_FN
|
| 798 |
|
| 799 |
#define NEON_FN(dest, src, dummy) dest = do_clz16((src < 0) ? ~src : src) - 1 |
| 800 |
NEON_VOP1(cls_s16, neon_s16, 2)
|
| 801 |
#undef NEON_FN
|
| 802 |
|
| 803 |
uint32_t HELPER(neon_cls_s32)(uint32_t x) |
| 804 |
{
|
| 805 |
int count;
|
| 806 |
if ((int32_t)x < 0) |
| 807 |
x = ~x; |
| 808 |
for (count = 32; x; count--) |
| 809 |
x = x >> 1;
|
| 810 |
return count - 1; |
| 811 |
} |
| 812 |
|
| 813 |
/* Bit count. */
|
| 814 |
uint32_t HELPER(neon_cnt_u8)(uint32_t x) |
| 815 |
{
|
| 816 |
x = (x & 0x55555555) + ((x >> 1) & 0x55555555); |
| 817 |
x = (x & 0x33333333) + ((x >> 2) & 0x33333333); |
| 818 |
x = (x & 0x0f0f0f0f) + ((x >> 4) & 0x0f0f0f0f); |
| 819 |
return x;
|
| 820 |
} |
| 821 |
|
| 822 |
#define NEON_QDMULH16(dest, src1, src2, round) do { \ |
| 823 |
uint32_t tmp = (int32_t)(int16_t) src1 * (int16_t) src2; \ |
| 824 |
if ((tmp ^ (tmp << 1)) & SIGNBIT) { \ |
| 825 |
SET_QC(); \ |
| 826 |
tmp = (tmp >> 31) ^ ~SIGNBIT; \
|
| 827 |
} \ |
| 828 |
tmp <<= 1; \
|
| 829 |
if (round) { \
|
| 830 |
int32_t old = tmp; \ |
| 831 |
tmp += 1 << 15; \ |
| 832 |
if ((int32_t)tmp < old) { \
|
| 833 |
SET_QC(); \ |
| 834 |
tmp = SIGNBIT - 1; \
|
| 835 |
} \ |
| 836 |
} \ |
| 837 |
dest = tmp >> 16; \
|
| 838 |
} while(0) |
| 839 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 0) |
| 840 |
NEON_VOP_ENV(qdmulh_s16, neon_s16, 2)
|
| 841 |
#undef NEON_FN
|
| 842 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH16(dest, src1, src2, 1) |
| 843 |
NEON_VOP_ENV(qrdmulh_s16, neon_s16, 2)
|
| 844 |
#undef NEON_FN
|
| 845 |
#undef NEON_QDMULH16
|
| 846 |
|
| 847 |
#define NEON_QDMULH32(dest, src1, src2, round) do { \ |
| 848 |
uint64_t tmp = (int64_t)(int32_t) src1 * (int32_t) src2; \ |
| 849 |
if ((tmp ^ (tmp << 1)) & SIGNBIT64) { \ |
| 850 |
SET_QC(); \ |
| 851 |
tmp = (tmp >> 63) ^ ~SIGNBIT64; \
|
| 852 |
} else { \
|
| 853 |
tmp <<= 1; \
|
| 854 |
} \ |
| 855 |
if (round) { \
|
| 856 |
int64_t old = tmp; \ |
| 857 |
tmp += (int64_t)1 << 31; \ |
| 858 |
if ((int64_t)tmp < old) { \
|
| 859 |
SET_QC(); \ |
| 860 |
tmp = SIGNBIT64 - 1; \
|
| 861 |
} \ |
| 862 |
} \ |
| 863 |
dest = tmp >> 32; \
|
| 864 |
} while(0) |
| 865 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 0) |
| 866 |
NEON_VOP_ENV(qdmulh_s32, neon_s32, 1)
|
| 867 |
#undef NEON_FN
|
| 868 |
#define NEON_FN(dest, src1, src2) NEON_QDMULH32(dest, src1, src2, 1) |
| 869 |
NEON_VOP_ENV(qrdmulh_s32, neon_s32, 1)
|
| 870 |
#undef NEON_FN
|
| 871 |
#undef NEON_QDMULH32
|
| 872 |
|
| 873 |
uint32_t HELPER(neon_narrow_u8)(uint64_t x) |
| 874 |
{
|
| 875 |
return (x & 0xffu) | ((x >> 8) & 0xff00u) | ((x >> 16) & 0xff0000u) |
| 876 |
| ((x >> 24) & 0xff000000u); |
| 877 |
} |
| 878 |
|
| 879 |
uint32_t HELPER(neon_narrow_u16)(uint64_t x) |
| 880 |
{
|
| 881 |
return (x & 0xffffu) | ((x >> 16) & 0xffff0000u); |
| 882 |
} |
| 883 |
|
| 884 |
uint32_t HELPER(neon_narrow_high_u8)(uint64_t x) |
| 885 |
{
|
| 886 |
return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
| 887 |
| ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
| 888 |
} |
| 889 |
|
| 890 |
uint32_t HELPER(neon_narrow_high_u16)(uint64_t x) |
| 891 |
{
|
| 892 |
return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
| 893 |
} |
| 894 |
|
| 895 |
uint32_t HELPER(neon_narrow_round_high_u8)(uint64_t x) |
| 896 |
{
|
| 897 |
x &= 0xff80ff80ff80ff80ull;
|
| 898 |
x += 0x0080008000800080ull;
|
| 899 |
return ((x >> 8) & 0xff) | ((x >> 16) & 0xff00) |
| 900 |
| ((x >> 24) & 0xff0000) | ((x >> 32) & 0xff000000); |
| 901 |
} |
| 902 |
|
| 903 |
uint32_t HELPER(neon_narrow_round_high_u16)(uint64_t x) |
| 904 |
{
|
| 905 |
x &= 0xffff8000ffff8000ull;
|
| 906 |
x += 0x0000800000008000ull;
|
| 907 |
return ((x >> 16) & 0xffff) | ((x >> 32) & 0xffff0000); |
| 908 |
} |
| 909 |
|
| 910 |
uint32_t HELPER(neon_narrow_sat_u8)(CPUState *env, uint64_t x) |
| 911 |
{
|
| 912 |
uint16_t s; |
| 913 |
uint8_t d; |
| 914 |
uint32_t res = 0;
|
| 915 |
#define SAT8(n) \
|
| 916 |
s = x >> n; \ |
| 917 |
if (s > 0xff) { \ |
| 918 |
d = 0xff; \
|
| 919 |
SET_QC(); \ |
| 920 |
} else { \
|
| 921 |
d = s; \ |
| 922 |
} \ |
| 923 |
res |= (uint32_t)d << (n / 2);
|
| 924 |
|
| 925 |
SAT8(0);
|
| 926 |
SAT8(16);
|
| 927 |
SAT8(32);
|
| 928 |
SAT8(48);
|
| 929 |
#undef SAT8
|
| 930 |
return res;
|
| 931 |
} |
| 932 |
|
| 933 |
uint32_t HELPER(neon_narrow_sat_s8)(CPUState *env, uint64_t x) |
| 934 |
{
|
| 935 |
int16_t s; |
| 936 |
uint8_t d; |
| 937 |
uint32_t res = 0;
|
| 938 |
#define SAT8(n) \
|
| 939 |
s = x >> n; \ |
| 940 |
if (s != (int8_t)s) { \
|
| 941 |
d = (s >> 15) ^ 0x7f; \ |
| 942 |
SET_QC(); \ |
| 943 |
} else { \
|
| 944 |
d = s; \ |
| 945 |
} \ |
| 946 |
res |= (uint32_t)d << (n / 2);
|
| 947 |
|
| 948 |
SAT8(0);
|
| 949 |
SAT8(16);
|
| 950 |
SAT8(32);
|
| 951 |
SAT8(48);
|
| 952 |
#undef SAT8
|
| 953 |
return res;
|
| 954 |
} |
| 955 |
|
| 956 |
uint32_t HELPER(neon_narrow_sat_u16)(CPUState *env, uint64_t x) |
| 957 |
{
|
| 958 |
uint32_t high; |
| 959 |
uint32_t low; |
| 960 |
low = x; |
| 961 |
if (low > 0xffff) { |
| 962 |
low = 0xffff;
|
| 963 |
SET_QC(); |
| 964 |
} |
| 965 |
high = x >> 32;
|
| 966 |
if (high > 0xffff) { |
| 967 |
high = 0xffff;
|
| 968 |
SET_QC(); |
| 969 |
} |
| 970 |
return low | (high << 16); |
| 971 |
} |
| 972 |
|
| 973 |
uint32_t HELPER(neon_narrow_sat_s16)(CPUState *env, uint64_t x) |
| 974 |
{
|
| 975 |
int32_t low; |
| 976 |
int32_t high; |
| 977 |
low = x; |
| 978 |
if (low != (int16_t)low) {
|
| 979 |
low = (low >> 31) ^ 0x7fff; |
| 980 |
SET_QC(); |
| 981 |
} |
| 982 |
high = x >> 32;
|
| 983 |
if (high != (int16_t)high) {
|
| 984 |
high = (high >> 31) ^ 0x7fff; |
| 985 |
SET_QC(); |
| 986 |
} |
| 987 |
return (uint16_t)low | (high << 16); |
| 988 |
} |
| 989 |
|
| 990 |
uint32_t HELPER(neon_narrow_sat_u32)(CPUState *env, uint64_t x) |
| 991 |
{
|
| 992 |
if (x > 0xffffffffu) { |
| 993 |
SET_QC(); |
| 994 |
return 0xffffffffu; |
| 995 |
} |
| 996 |
return x;
|
| 997 |
} |
| 998 |
|
| 999 |
uint32_t HELPER(neon_narrow_sat_s32)(CPUState *env, uint64_t x) |
| 1000 |
{
|
| 1001 |
if ((int64_t)x != (int32_t)x) {
|
| 1002 |
SET_QC(); |
| 1003 |
return (x >> 63) ^ 0x7fffffff; |
| 1004 |
} |
| 1005 |
return x;
|
| 1006 |
} |
| 1007 |
|
| 1008 |
uint64_t HELPER(neon_widen_u8)(uint32_t x) |
| 1009 |
{
|
| 1010 |
uint64_t tmp; |
| 1011 |
uint64_t ret; |
| 1012 |
ret = (uint8_t)x; |
| 1013 |
tmp = (uint8_t)(x >> 8);
|
| 1014 |
ret |= tmp << 16;
|
| 1015 |
tmp = (uint8_t)(x >> 16);
|
| 1016 |
ret |= tmp << 32;
|
| 1017 |
tmp = (uint8_t)(x >> 24);
|
| 1018 |
ret |= tmp << 48;
|
| 1019 |
return ret;
|
| 1020 |
} |
| 1021 |
|
| 1022 |
uint64_t HELPER(neon_widen_s8)(uint32_t x) |
| 1023 |
{
|
| 1024 |
uint64_t tmp; |
| 1025 |
uint64_t ret; |
| 1026 |
ret = (uint16_t)(int8_t)x; |
| 1027 |
tmp = (uint16_t)(int8_t)(x >> 8);
|
| 1028 |
ret |= tmp << 16;
|
| 1029 |
tmp = (uint16_t)(int8_t)(x >> 16);
|
| 1030 |
ret |= tmp << 32;
|
| 1031 |
tmp = (uint16_t)(int8_t)(x >> 24);
|
| 1032 |
ret |= tmp << 48;
|
| 1033 |
return ret;
|
| 1034 |
} |
| 1035 |
|
| 1036 |
uint64_t HELPER(neon_widen_u16)(uint32_t x) |
| 1037 |
{
|
| 1038 |
uint64_t high = (uint16_t)(x >> 16);
|
| 1039 |
return ((uint16_t)x) | (high << 32); |
| 1040 |
} |
| 1041 |
|
| 1042 |
uint64_t HELPER(neon_widen_s16)(uint32_t x) |
| 1043 |
{
|
| 1044 |
uint64_t high = (int16_t)(x >> 16);
|
| 1045 |
return ((uint32_t)(int16_t)x) | (high << 32); |
| 1046 |
} |
| 1047 |
|
| 1048 |
uint64_t HELPER(neon_addl_u16)(uint64_t a, uint64_t b) |
| 1049 |
{
|
| 1050 |
uint64_t mask; |
| 1051 |
mask = (a ^ b) & 0x8000800080008000ull;
|
| 1052 |
a &= ~0x8000800080008000ull;
|
| 1053 |
b &= ~0x8000800080008000ull;
|
| 1054 |
return (a + b) ^ mask;
|
| 1055 |
} |
| 1056 |
|
| 1057 |
uint64_t HELPER(neon_addl_u32)(uint64_t a, uint64_t b) |
| 1058 |
{
|
| 1059 |
uint64_t mask; |
| 1060 |
mask = (a ^ b) & 0x8000000080000000ull;
|
| 1061 |
a &= ~0x8000000080000000ull;
|
| 1062 |
b &= ~0x8000000080000000ull;
|
| 1063 |
return (a + b) ^ mask;
|
| 1064 |
} |
| 1065 |
|
| 1066 |
uint64_t HELPER(neon_paddl_u16)(uint64_t a, uint64_t b) |
| 1067 |
{
|
| 1068 |
uint64_t tmp; |
| 1069 |
uint64_t tmp2; |
| 1070 |
|
| 1071 |
tmp = a & 0x0000ffff0000ffffull;
|
| 1072 |
tmp += (a >> 16) & 0x0000ffff0000ffffull; |
| 1073 |
tmp2 = b & 0xffff0000ffff0000ull;
|
| 1074 |
tmp2 += (b << 16) & 0xffff0000ffff0000ull; |
| 1075 |
return ( tmp & 0xffff) |
| 1076 |
| ((tmp >> 16) & 0xffff0000ull) |
| 1077 |
| ((tmp2 << 16) & 0xffff00000000ull) |
| 1078 |
| ( tmp2 & 0xffff000000000000ull);
|
| 1079 |
} |
| 1080 |
|
| 1081 |
uint64_t HELPER(neon_paddl_u32)(uint64_t a, uint64_t b) |
| 1082 |
{
|
| 1083 |
uint32_t low = a + (a >> 32);
|
| 1084 |
uint32_t high = b + (b >> 32);
|
| 1085 |
return low + ((uint64_t)high << 32); |
| 1086 |
} |
| 1087 |
|
| 1088 |
uint64_t HELPER(neon_subl_u16)(uint64_t a, uint64_t b) |
| 1089 |
{
|
| 1090 |
uint64_t mask; |
| 1091 |
mask = (a ^ ~b) & 0x8000800080008000ull;
|
| 1092 |
a |= 0x8000800080008000ull;
|
| 1093 |
b &= ~0x8000800080008000ull;
|
| 1094 |
return (a - b) ^ mask;
|
| 1095 |
} |
| 1096 |
|
| 1097 |
uint64_t HELPER(neon_subl_u32)(uint64_t a, uint64_t b) |
| 1098 |
{
|
| 1099 |
uint64_t mask; |
| 1100 |
mask = (a ^ ~b) & 0x8000000080000000ull;
|
| 1101 |
a |= 0x8000000080000000ull;
|
| 1102 |
b &= ~0x8000000080000000ull;
|
| 1103 |
return (a - b) ^ mask;
|
| 1104 |
} |
| 1105 |
|
| 1106 |
uint64_t HELPER(neon_addl_saturate_s32)(CPUState *env, uint64_t a, uint64_t b) |
| 1107 |
{
|
| 1108 |
uint32_t x, y; |
| 1109 |
uint32_t low, high; |
| 1110 |
|
| 1111 |
x = a; |
| 1112 |
y = b; |
| 1113 |
low = x + y; |
| 1114 |
if (((low ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) {
|
| 1115 |
SET_QC(); |
| 1116 |
low = ((int32_t)x >> 31) ^ ~SIGNBIT;
|
| 1117 |
} |
| 1118 |
x = a >> 32;
|
| 1119 |
y = b >> 32;
|
| 1120 |
high = x + y; |
| 1121 |
if (((high ^ x) & SIGNBIT) && !((x ^ y) & SIGNBIT)) {
|
| 1122 |
SET_QC(); |
| 1123 |
high = ((int32_t)x >> 31) ^ ~SIGNBIT;
|
| 1124 |
} |
| 1125 |
return low | ((uint64_t)high << 32); |
| 1126 |
} |
| 1127 |
|
| 1128 |
uint64_t HELPER(neon_addl_saturate_s64)(CPUState *env, uint64_t a, uint64_t b) |
| 1129 |
{
|
| 1130 |
uint64_t result; |
| 1131 |
|
| 1132 |
result = a + b; |
| 1133 |
if (((result ^ a) & SIGNBIT64) && !((a ^ b) & SIGNBIT64)) {
|
| 1134 |
SET_QC(); |
| 1135 |
result = ((int64_t)a >> 63) ^ ~SIGNBIT64;
|
| 1136 |
} |
| 1137 |
return result;
|
| 1138 |
} |
| 1139 |
|
| 1140 |
#define DO_ABD(dest, x, y, type) do { \ |
| 1141 |
type tmp_x = x; \ |
| 1142 |
type tmp_y = y; \ |
| 1143 |
dest = ((tmp_x > tmp_y) ? tmp_x - tmp_y : tmp_y - tmp_x); \ |
| 1144 |
} while(0) |
| 1145 |
|
| 1146 |
uint64_t HELPER(neon_abdl_u16)(uint32_t a, uint32_t b) |
| 1147 |
{
|
| 1148 |
uint64_t tmp; |
| 1149 |
uint64_t result; |
| 1150 |
DO_ABD(result, a, b, uint8_t); |
| 1151 |
DO_ABD(tmp, a >> 8, b >> 8, uint8_t); |
| 1152 |
result |= tmp << 16;
|
| 1153 |
DO_ABD(tmp, a >> 16, b >> 16, uint8_t); |
| 1154 |
result |= tmp << 32;
|
| 1155 |
DO_ABD(tmp, a >> 24, b >> 24, uint8_t); |
| 1156 |
result |= tmp << 48;
|
| 1157 |
return result;
|
| 1158 |
} |
| 1159 |
|
| 1160 |
uint64_t HELPER(neon_abdl_s16)(uint32_t a, uint32_t b) |
| 1161 |
{
|
| 1162 |
uint64_t tmp; |
| 1163 |
uint64_t result; |
| 1164 |
DO_ABD(result, a, b, int8_t); |
| 1165 |
DO_ABD(tmp, a >> 8, b >> 8, int8_t); |
| 1166 |
result |= tmp << 16;
|
| 1167 |
DO_ABD(tmp, a >> 16, b >> 16, int8_t); |
| 1168 |
result |= tmp << 32;
|
| 1169 |
DO_ABD(tmp, a >> 24, b >> 24, int8_t); |
| 1170 |
result |= tmp << 48;
|
| 1171 |
return result;
|
| 1172 |
} |
| 1173 |
|
| 1174 |
uint64_t HELPER(neon_abdl_u32)(uint32_t a, uint32_t b) |
| 1175 |
{
|
| 1176 |
uint64_t tmp; |
| 1177 |
uint64_t result; |
| 1178 |
DO_ABD(result, a, b, uint16_t); |
| 1179 |
DO_ABD(tmp, a >> 16, b >> 16, uint16_t); |
| 1180 |
return result | (tmp << 32); |
| 1181 |
} |
| 1182 |
|
| 1183 |
uint64_t HELPER(neon_abdl_s32)(uint32_t a, uint32_t b) |
| 1184 |
{
|
| 1185 |
uint64_t tmp; |
| 1186 |
uint64_t result; |
| 1187 |
DO_ABD(result, a, b, int16_t); |
| 1188 |
DO_ABD(tmp, a >> 16, b >> 16, int16_t); |
| 1189 |
return result | (tmp << 32); |
| 1190 |
} |
| 1191 |
|
| 1192 |
uint64_t HELPER(neon_abdl_u64)(uint32_t a, uint32_t b) |
| 1193 |
{
|
| 1194 |
uint64_t result; |
| 1195 |
DO_ABD(result, a, b, uint32_t); |
| 1196 |
return result;
|
| 1197 |
} |
| 1198 |
|
| 1199 |
uint64_t HELPER(neon_abdl_s64)(uint32_t a, uint32_t b) |
| 1200 |
{
|
| 1201 |
uint64_t result; |
| 1202 |
DO_ABD(result, a, b, int32_t); |
| 1203 |
return result;
|
| 1204 |
} |
| 1205 |
#undef DO_ABD
|
| 1206 |
|
| 1207 |
/* Widening multiply. Named type is the source type. */
|
| 1208 |
#define DO_MULL(dest, x, y, type1, type2) do { \ |
| 1209 |
type1 tmp_x = x; \ |
| 1210 |
type1 tmp_y = y; \ |
| 1211 |
dest = (type2)((type2)tmp_x * (type2)tmp_y); \ |
| 1212 |
} while(0) |
| 1213 |
|
| 1214 |
uint64_t HELPER(neon_mull_u8)(uint32_t a, uint32_t b) |
| 1215 |
{
|
| 1216 |
uint64_t tmp; |
| 1217 |
uint64_t result; |
| 1218 |
|
| 1219 |
DO_MULL(result, a, b, uint8_t, uint16_t); |
| 1220 |
DO_MULL(tmp, a >> 8, b >> 8, uint8_t, uint16_t); |
| 1221 |
result |= tmp << 16;
|
| 1222 |
DO_MULL(tmp, a >> 16, b >> 16, uint8_t, uint16_t); |
| 1223 |
result |= tmp << 32;
|
| 1224 |
DO_MULL(tmp, a >> 24, b >> 24, uint8_t, uint16_t); |
| 1225 |
result |= tmp << 48;
|
| 1226 |
return result;
|
| 1227 |
} |
| 1228 |
|
| 1229 |
uint64_t HELPER(neon_mull_s8)(uint32_t a, uint32_t b) |
| 1230 |
{
|
| 1231 |
uint64_t tmp; |
| 1232 |
uint64_t result; |
| 1233 |
|
| 1234 |
DO_MULL(result, a, b, int8_t, uint16_t); |
| 1235 |
DO_MULL(tmp, a >> 8, b >> 8, int8_t, uint16_t); |
| 1236 |
result |= tmp << 16;
|
| 1237 |
DO_MULL(tmp, a >> 16, b >> 16, int8_t, uint16_t); |
| 1238 |
result |= tmp << 32;
|
| 1239 |
DO_MULL(tmp, a >> 24, b >> 24, int8_t, uint16_t); |
| 1240 |
result |= tmp << 48;
|
| 1241 |
return result;
|
| 1242 |
} |
| 1243 |
|
| 1244 |
uint64_t HELPER(neon_mull_u16)(uint32_t a, uint32_t b) |
| 1245 |
{
|
| 1246 |
uint64_t tmp; |
| 1247 |
uint64_t result; |
| 1248 |
|
| 1249 |
DO_MULL(result, a, b, uint16_t, uint32_t); |
| 1250 |
DO_MULL(tmp, a >> 16, b >> 16, uint16_t, uint32_t); |
| 1251 |
return result | (tmp << 32); |
| 1252 |
} |
| 1253 |
|
| 1254 |
uint64_t HELPER(neon_mull_s16)(uint32_t a, uint32_t b) |
| 1255 |
{
|
| 1256 |
uint64_t tmp; |
| 1257 |
uint64_t result; |
| 1258 |
|
| 1259 |
DO_MULL(result, a, b, int16_t, uint32_t); |
| 1260 |
DO_MULL(tmp, a >> 16, b >> 16, int16_t, uint32_t); |
| 1261 |
return result | (tmp << 32); |
| 1262 |
} |
| 1263 |
|
| 1264 |
uint64_t HELPER(neon_negl_u16)(uint64_t x) |
| 1265 |
{
|
| 1266 |
uint16_t tmp; |
| 1267 |
uint64_t result; |
| 1268 |
result = (uint16_t)-x; |
| 1269 |
tmp = -(x >> 16);
|
| 1270 |
result |= (uint64_t)tmp << 16;
|
| 1271 |
tmp = -(x >> 32);
|
| 1272 |
result |= (uint64_t)tmp << 32;
|
| 1273 |
tmp = -(x >> 48);
|
| 1274 |
result |= (uint64_t)tmp << 48;
|
| 1275 |
return result;
|
| 1276 |
} |
| 1277 |
|
| 1278 |
#include <stdio.h> |
| 1279 |
uint64_t HELPER(neon_negl_u32)(uint64_t x) |
| 1280 |
{
|
| 1281 |
uint32_t low = -x; |
| 1282 |
uint32_t high = -(x >> 32);
|
| 1283 |
return low | ((uint64_t)high << 32); |
| 1284 |
} |
| 1285 |
|
| 1286 |
/* FIXME: There should be a native op for this. */
|
| 1287 |
uint64_t HELPER(neon_negl_u64)(uint64_t x) |
| 1288 |
{
|
| 1289 |
return -x;
|
| 1290 |
} |
| 1291 |
|
| 1292 |
/* Saturnating sign manuipulation. */
|
| 1293 |
/* ??? Make these use NEON_VOP1 */
|
| 1294 |
#define DO_QABS8(x) do { \ |
| 1295 |
if (x == (int8_t)0x80) { \ |
| 1296 |
x = 0x7f; \
|
| 1297 |
SET_QC(); \ |
| 1298 |
} else if (x < 0) { \ |
| 1299 |
x = -x; \ |
| 1300 |
}} while (0) |
| 1301 |
uint32_t HELPER(neon_qabs_s8)(CPUState *env, uint32_t x) |
| 1302 |
{
|
| 1303 |
neon_s8 vec; |
| 1304 |
NEON_UNPACK(neon_s8, vec, x); |
| 1305 |
DO_QABS8(vec.v1); |
| 1306 |
DO_QABS8(vec.v2); |
| 1307 |
DO_QABS8(vec.v3); |
| 1308 |
DO_QABS8(vec.v4); |
| 1309 |
NEON_PACK(neon_s8, x, vec); |
| 1310 |
return x;
|
| 1311 |
} |
| 1312 |
#undef DO_QABS8
|
| 1313 |
|
| 1314 |
#define DO_QNEG8(x) do { \ |
| 1315 |
if (x == (int8_t)0x80) { \ |
| 1316 |
x = 0x7f; \
|
| 1317 |
SET_QC(); \ |
| 1318 |
} else { \
|
| 1319 |
x = -x; \ |
| 1320 |
}} while (0) |
| 1321 |
uint32_t HELPER(neon_qneg_s8)(CPUState *env, uint32_t x) |
| 1322 |
{
|
| 1323 |
neon_s8 vec; |
| 1324 |
NEON_UNPACK(neon_s8, vec, x); |
| 1325 |
DO_QNEG8(vec.v1); |
| 1326 |
DO_QNEG8(vec.v2); |
| 1327 |
DO_QNEG8(vec.v3); |
| 1328 |
DO_QNEG8(vec.v4); |
| 1329 |
NEON_PACK(neon_s8, x, vec); |
| 1330 |
return x;
|
| 1331 |
} |
| 1332 |
#undef DO_QNEG8
|
| 1333 |
|
| 1334 |
#define DO_QABS16(x) do { \ |
| 1335 |
if (x == (int16_t)0x8000) { \ |
| 1336 |
x = 0x7fff; \
|
| 1337 |
SET_QC(); \ |
| 1338 |
} else if (x < 0) { \ |
| 1339 |
x = -x; \ |
| 1340 |
}} while (0) |
| 1341 |
uint32_t HELPER(neon_qabs_s16)(CPUState *env, uint32_t x) |
| 1342 |
{
|
| 1343 |
neon_s16 vec; |
| 1344 |
NEON_UNPACK(neon_s16, vec, x); |
| 1345 |
DO_QABS16(vec.v1); |
| 1346 |
DO_QABS16(vec.v2); |
| 1347 |
NEON_PACK(neon_s16, x, vec); |
| 1348 |
return x;
|
| 1349 |
} |
| 1350 |
#undef DO_QABS16
|
| 1351 |
|
| 1352 |
#define DO_QNEG16(x) do { \ |
| 1353 |
if (x == (int16_t)0x8000) { \ |
| 1354 |
x = 0x7fff; \
|
| 1355 |
SET_QC(); \ |
| 1356 |
} else { \
|
| 1357 |
x = -x; \ |
| 1358 |
}} while (0) |
| 1359 |
uint32_t HELPER(neon_qneg_s16)(CPUState *env, uint32_t x) |
| 1360 |
{
|
| 1361 |
neon_s16 vec; |
| 1362 |
NEON_UNPACK(neon_s16, vec, x); |
| 1363 |
DO_QNEG16(vec.v1); |
| 1364 |
DO_QNEG16(vec.v2); |
| 1365 |
NEON_PACK(neon_s16, x, vec); |
| 1366 |
return x;
|
| 1367 |
} |
| 1368 |
#undef DO_QNEG16
|
| 1369 |
|
| 1370 |
uint32_t HELPER(neon_qabs_s32)(CPUState *env, uint32_t x) |
| 1371 |
{
|
| 1372 |
if (x == SIGNBIT) {
|
| 1373 |
SET_QC(); |
| 1374 |
x = ~SIGNBIT; |
| 1375 |
} else if ((int32_t)x < 0) { |
| 1376 |
x = -x; |
| 1377 |
} |
| 1378 |
return x;
|
| 1379 |
} |
| 1380 |
|
| 1381 |
uint32_t HELPER(neon_qneg_s32)(CPUState *env, uint32_t x) |
| 1382 |
{
|
| 1383 |
if (x == SIGNBIT) {
|
| 1384 |
SET_QC(); |
| 1385 |
x = ~SIGNBIT; |
| 1386 |
} else {
|
| 1387 |
x = -x; |
| 1388 |
} |
| 1389 |
return x;
|
| 1390 |
} |
| 1391 |
|
| 1392 |
/* NEON Float helpers. */
|
| 1393 |
uint32_t HELPER(neon_min_f32)(uint32_t a, uint32_t b) |
| 1394 |
{
|
| 1395 |
float32 f0 = vfp_itos(a); |
| 1396 |
float32 f1 = vfp_itos(b); |
| 1397 |
return (float32_compare_quiet(f0, f1, NFS) == -1) ? a : b; |
| 1398 |
} |
| 1399 |
|
| 1400 |
uint32_t HELPER(neon_max_f32)(uint32_t a, uint32_t b) |
| 1401 |
{
|
| 1402 |
float32 f0 = vfp_itos(a); |
| 1403 |
float32 f1 = vfp_itos(b); |
| 1404 |
return (float32_compare_quiet(f0, f1, NFS) == 1) ? a : b; |
| 1405 |
} |
| 1406 |
|
| 1407 |
uint32_t HELPER(neon_abd_f32)(uint32_t a, uint32_t b) |
| 1408 |
{
|
| 1409 |
float32 f0 = vfp_itos(a); |
| 1410 |
float32 f1 = vfp_itos(b); |
| 1411 |
return vfp_stoi((float32_compare_quiet(f0, f1, NFS) == 1) |
| 1412 |
? float32_sub(f0, f1, NFS) |
| 1413 |
: float32_sub(f1, f0, NFS)); |
| 1414 |
} |
| 1415 |
|
| 1416 |
uint32_t HELPER(neon_add_f32)(uint32_t a, uint32_t b) |
| 1417 |
{
|
| 1418 |
return vfp_stoi(float32_add(vfp_itos(a), vfp_itos(b), NFS));
|
| 1419 |
} |
| 1420 |
|
| 1421 |
uint32_t HELPER(neon_sub_f32)(uint32_t a, uint32_t b) |
| 1422 |
{
|
| 1423 |
return vfp_stoi(float32_sub(vfp_itos(a), vfp_itos(b), NFS));
|
| 1424 |
} |
| 1425 |
|
| 1426 |
uint32_t HELPER(neon_mul_f32)(uint32_t a, uint32_t b) |
| 1427 |
{
|
| 1428 |
return vfp_stoi(float32_mul(vfp_itos(a), vfp_itos(b), NFS));
|
| 1429 |
} |
| 1430 |
|
| 1431 |
/* Floating point comparisons produce an integer result. */
|
| 1432 |
#define NEON_VOP_FCMP(name, cmp) \
|
| 1433 |
uint32_t HELPER(neon_##name)(uint32_t a, uint32_t b) \ |
| 1434 |
{ \
|
| 1435 |
if (float32_compare_quiet(vfp_itos(a), vfp_itos(b), NFS) cmp 0) \ |
| 1436 |
return ~0; \ |
| 1437 |
else \
|
| 1438 |
return 0; \ |
| 1439 |
} |
| 1440 |
|
| 1441 |
NEON_VOP_FCMP(ceq_f32, ==) |
| 1442 |
NEON_VOP_FCMP(cge_f32, >=) |
| 1443 |
NEON_VOP_FCMP(cgt_f32, >) |
| 1444 |
|
| 1445 |
uint32_t HELPER(neon_acge_f32)(uint32_t a, uint32_t b) |
| 1446 |
{
|
| 1447 |
float32 f0 = float32_abs(vfp_itos(a)); |
| 1448 |
float32 f1 = float32_abs(vfp_itos(b)); |
| 1449 |
return (float32_compare_quiet(f0, f1,NFS) >= 0) ? ~0 : 0; |
| 1450 |
} |
| 1451 |
|
| 1452 |
uint32_t HELPER(neon_acgt_f32)(uint32_t a, uint32_t b) |
| 1453 |
{
|
| 1454 |
float32 f0 = float32_abs(vfp_itos(a)); |
| 1455 |
float32 f1 = float32_abs(vfp_itos(b)); |
| 1456 |
return (float32_compare_quiet(f0, f1, NFS) > 0) ? ~0 : 0; |
| 1457 |
} |