/
iwmmxt_helper.c
681 lines (628 loc) · 24.7 KB
/
iwmmxt_helper.c
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/*
* iwMMXt micro operations for XScale.
*
* Copyright (c) 2007 OpenedHand, Ltd.
* Written by Andrzej Zaborowski <andrew@openedhand.com>
* Copyright (c) 2008 CodeSourcery
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include "cpu.h"
#include "exec-all.h"
#include "helpers.h"
/* iwMMXt macros extracted from GNU gdb. */
/* Set the SIMD wCASF flags for 8, 16, 32 or 64-bit operations. */
#define SIMD8_SET( v, n, b) ((v != 0) << ((((b) + 1) * 4) + (n)))
#define SIMD16_SET(v, n, h) ((v != 0) << ((((h) + 1) * 8) + (n)))
#define SIMD32_SET(v, n, w) ((v != 0) << ((((w) + 1) * 16) + (n)))
#define SIMD64_SET(v, n) ((v != 0) << (32 + (n)))
/* Flags to pass as "n" above. */
#define SIMD_NBIT -1
#define SIMD_ZBIT -2
#define SIMD_CBIT -3
#define SIMD_VBIT -4
/* Various status bit macros. */
#define NBIT8(x) ((x) & 0x80)
#define NBIT16(x) ((x) & 0x8000)
#define NBIT32(x) ((x) & 0x80000000)
#define NBIT64(x) ((x) & 0x8000000000000000ULL)
#define ZBIT8(x) (((x) & 0xff) == 0)
#define ZBIT16(x) (((x) & 0xffff) == 0)
#define ZBIT32(x) (((x) & 0xffffffff) == 0)
#define ZBIT64(x) (x == 0)
/* Sign extension macros. */
#define EXTEND8H(a) ((uint16_t) (int8_t) (a))
#define EXTEND8(a) ((uint32_t) (int8_t) (a))
#define EXTEND16(a) ((uint32_t) (int16_t) (a))
#define EXTEND16S(a) ((int32_t) (int16_t) (a))
#define EXTEND32(a) ((uint64_t) (int32_t) (a))
uint64_t HELPER(iwmmxt_maddsq)(uint64_t a, uint64_t b)
{
a = ((
EXTEND16S((a >> 0) & 0xffff) * EXTEND16S((b >> 0) & 0xffff) +
EXTEND16S((a >> 16) & 0xffff) * EXTEND16S((b >> 16) & 0xffff)
) & 0xffffffff) | ((uint64_t) (
EXTEND16S((a >> 32) & 0xffff) * EXTEND16S((b >> 32) & 0xffff) +
EXTEND16S((a >> 48) & 0xffff) * EXTEND16S((b >> 48) & 0xffff)
) << 32);
return a;
}
uint64_t HELPER(iwmmxt_madduq)(uint64_t a, uint64_t b)
{
a = ((
((a >> 0) & 0xffff) * ((b >> 0) & 0xffff) +
((a >> 16) & 0xffff) * ((b >> 16) & 0xffff)
) & 0xffffffff) | ((
((a >> 32) & 0xffff) * ((b >> 32) & 0xffff) +
((a >> 48) & 0xffff) * ((b >> 48) & 0xffff)
) << 32);
return a;
}
uint64_t HELPER(iwmmxt_sadb)(uint64_t a, uint64_t b)
{
#define abs(x) (((x) >= 0) ? x : -x)
#define SADB(SHR) abs((int) ((a >> SHR) & 0xff) - (int) ((b >> SHR) & 0xff))
return
SADB(0) + SADB(8) + SADB(16) + SADB(24) +
SADB(32) + SADB(40) + SADB(48) + SADB(56);
#undef SADB
}
uint64_t HELPER(iwmmxt_sadw)(uint64_t a, uint64_t b)
{
#define SADW(SHR) \
abs((int) ((a >> SHR) & 0xffff) - (int) ((b >> SHR) & 0xffff))
return SADW(0) + SADW(16) + SADW(32) + SADW(48);
#undef SADW
}
uint64_t HELPER(iwmmxt_mulslw)(uint64_t a, uint64_t b)
{
#define MULS(SHR) ((uint64_t) ((( \
EXTEND16S((a >> SHR) & 0xffff) * EXTEND16S((b >> SHR) & 0xffff) \
) >> 0) & 0xffff) << SHR)
return MULS(0) | MULS(16) | MULS(32) | MULS(48);
#undef MULS
}
uint64_t HELPER(iwmmxt_mulshw)(uint64_t a, uint64_t b)
{
#define MULS(SHR) ((uint64_t) ((( \
EXTEND16S((a >> SHR) & 0xffff) * EXTEND16S((b >> SHR) & 0xffff) \
) >> 16) & 0xffff) << SHR)
return MULS(0) | MULS(16) | MULS(32) | MULS(48);
#undef MULS
}
uint64_t HELPER(iwmmxt_mululw)(uint64_t a, uint64_t b)
{
#define MULU(SHR) ((uint64_t) ((( \
((a >> SHR) & 0xffff) * ((b >> SHR) & 0xffff) \
) >> 0) & 0xffff) << SHR)
return MULU(0) | MULU(16) | MULU(32) | MULU(48);
#undef MULU
}
uint64_t HELPER(iwmmxt_muluhw)(uint64_t a, uint64_t b)
{
#define MULU(SHR) ((uint64_t) ((( \
((a >> SHR) & 0xffff) * ((b >> SHR) & 0xffff) \
) >> 16) & 0xffff) << SHR)
return MULU(0) | MULU(16) | MULU(32) | MULU(48);
#undef MULU
}
uint64_t HELPER(iwmmxt_macsw)(uint64_t a, uint64_t b)
{
#define MACS(SHR) ( \
EXTEND16((a >> SHR) & 0xffff) * EXTEND16S((b >> SHR) & 0xffff))
return (int64_t) (MACS(0) + MACS(16) + MACS(32) + MACS(48));
#undef MACS
}
uint64_t HELPER(iwmmxt_macuw)(uint64_t a, uint64_t b)
{
#define MACU(SHR) ( \
(uint32_t) ((a >> SHR) & 0xffff) * \
(uint32_t) ((b >> SHR) & 0xffff))
return MACU(0) + MACU(16) + MACU(32) + MACU(48);
#undef MACU
}
#define NZBIT8(x, i) \
SIMD8_SET(NBIT8((x) & 0xff), SIMD_NBIT, i) | \
SIMD8_SET(ZBIT8((x) & 0xff), SIMD_ZBIT, i)
#define NZBIT16(x, i) \
SIMD16_SET(NBIT16((x) & 0xffff), SIMD_NBIT, i) | \
SIMD16_SET(ZBIT16((x) & 0xffff), SIMD_ZBIT, i)
#define NZBIT32(x, i) \
SIMD32_SET(NBIT32((x) & 0xffffffff), SIMD_NBIT, i) | \
SIMD32_SET(ZBIT32((x) & 0xffffffff), SIMD_ZBIT, i)
#define NZBIT64(x) \
SIMD64_SET(NBIT64(x), SIMD_NBIT) | \
SIMD64_SET(ZBIT64(x), SIMD_ZBIT)
#define IWMMXT_OP_UNPACK(S, SH0, SH1, SH2, SH3) \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, b)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = \
(((a >> SH0) & 0xff) << 0) | (((b >> SH0) & 0xff) << 8) | \
(((a >> SH1) & 0xff) << 16) | (((b >> SH1) & 0xff) << 24) | \
(((a >> SH2) & 0xff) << 32) | (((b >> SH2) & 0xff) << 40) | \
(((a >> SH3) & 0xff) << 48) | (((b >> SH3) & 0xff) << 56); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT8(a >> 0, 0) | NZBIT8(a >> 8, 1) | \
NZBIT8(a >> 16, 2) | NZBIT8(a >> 24, 3) | \
NZBIT8(a >> 32, 4) | NZBIT8(a >> 40, 5) | \
NZBIT8(a >> 48, 6) | NZBIT8(a >> 56, 7); \
return a; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, w)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = \
(((a >> SH0) & 0xffff) << 0) | \
(((b >> SH0) & 0xffff) << 16) | \
(((a >> SH2) & 0xffff) << 32) | \
(((b >> SH2) & 0xffff) << 48); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT8(a >> 0, 0) | NZBIT8(a >> 16, 1) | \
NZBIT8(a >> 32, 2) | NZBIT8(a >> 48, 3); \
return a; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, l)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = \
(((a >> SH0) & 0xffffffff) << 0) | \
(((b >> SH0) & 0xffffffff) << 32); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT32(a >> 0, 0) | NZBIT32(a >> 32, 1); \
return a; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, ub)))(CPUState *env, \
uint64_t x) \
{ \
x = \
(((x >> SH0) & 0xff) << 0) | \
(((x >> SH1) & 0xff) << 16) | \
(((x >> SH2) & 0xff) << 32) | \
(((x >> SH3) & 0xff) << 48); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) | \
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3); \
return x; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, uw)))(CPUState *env, \
uint64_t x) \
{ \
x = \
(((x >> SH0) & 0xffff) << 0) | \
(((x >> SH2) & 0xffff) << 32); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1); \
return x; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, ul)))(CPUState *env, \
uint64_t x) \
{ \
x = (((x >> SH0) & 0xffffffff) << 0); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x >> 0); \
return x; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, sb)))(CPUState *env, \
uint64_t x) \
{ \
x = \
((uint64_t) EXTEND8H((x >> SH0) & 0xff) << 0) | \
((uint64_t) EXTEND8H((x >> SH1) & 0xff) << 16) | \
((uint64_t) EXTEND8H((x >> SH2) & 0xff) << 32) | \
((uint64_t) EXTEND8H((x >> SH3) & 0xff) << 48); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) | \
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3); \
return x; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, sw)))(CPUState *env, \
uint64_t x) \
{ \
x = \
((uint64_t) EXTEND16((x >> SH0) & 0xffff) << 0) | \
((uint64_t) EXTEND16((x >> SH2) & 0xffff) << 32); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1); \
return x; \
} \
uint64_t HELPER(glue(iwmmxt_unpack, glue(S, sl)))(CPUState *env, \
uint64_t x) \
{ \
x = EXTEND32((x >> SH0) & 0xffffffff); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x >> 0); \
return x; \
}
IWMMXT_OP_UNPACK(l, 0, 8, 16, 24)
IWMMXT_OP_UNPACK(h, 32, 40, 48, 56)
#define IWMMXT_OP_CMP(SUFF, Tb, Tw, Tl, O) \
uint64_t HELPER(glue(iwmmxt_, glue(SUFF, b)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = \
CMP(0, Tb, O, 0xff) | CMP(8, Tb, O, 0xff) | \
CMP(16, Tb, O, 0xff) | CMP(24, Tb, O, 0xff) | \
CMP(32, Tb, O, 0xff) | CMP(40, Tb, O, 0xff) | \
CMP(48, Tb, O, 0xff) | CMP(56, Tb, O, 0xff); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT8(a >> 0, 0) | NZBIT8(a >> 8, 1) | \
NZBIT8(a >> 16, 2) | NZBIT8(a >> 24, 3) | \
NZBIT8(a >> 32, 4) | NZBIT8(a >> 40, 5) | \
NZBIT8(a >> 48, 6) | NZBIT8(a >> 56, 7); \
return a; \
} \
uint64_t HELPER(glue(iwmmxt_, glue(SUFF, w)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = CMP(0, Tw, O, 0xffff) | CMP(16, Tw, O, 0xffff) | \
CMP(32, Tw, O, 0xffff) | CMP(48, Tw, O, 0xffff); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT16(a >> 0, 0) | NZBIT16(a >> 16, 1) | \
NZBIT16(a >> 32, 2) | NZBIT16(a >> 48, 3); \
return a; \
} \
uint64_t HELPER(glue(iwmmxt_, glue(SUFF, l)))(CPUState *env, \
uint64_t a, uint64_t b) \
{ \
a = CMP(0, Tl, O, 0xffffffff) | \
CMP(32, Tl, O, 0xffffffff); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
NZBIT32(a >> 0, 0) | NZBIT32(a >> 32, 1); \
return a; \
}
#define CMP(SHR, TYPE, OPER, MASK) ((((TYPE) ((a >> SHR) & MASK) OPER \
(TYPE) ((b >> SHR) & MASK)) ? (uint64_t) MASK : 0) << SHR)
IWMMXT_OP_CMP(cmpeq, uint8_t, uint16_t, uint32_t, ==)
IWMMXT_OP_CMP(cmpgts, int8_t, int16_t, int32_t, >)
IWMMXT_OP_CMP(cmpgtu, uint8_t, uint16_t, uint32_t, >)
#undef CMP
#define CMP(SHR, TYPE, OPER, MASK) ((((TYPE) ((a >> SHR) & MASK) OPER \
(TYPE) ((b >> SHR) & MASK)) ? a : b) & ((uint64_t) MASK << SHR))
IWMMXT_OP_CMP(mins, int8_t, int16_t, int32_t, <)
IWMMXT_OP_CMP(minu, uint8_t, uint16_t, uint32_t, <)
IWMMXT_OP_CMP(maxs, int8_t, int16_t, int32_t, >)
IWMMXT_OP_CMP(maxu, uint8_t, uint16_t, uint32_t, >)
#undef CMP
#define CMP(SHR, TYPE, OPER, MASK) ((uint64_t) (((TYPE) ((a >> SHR) & MASK) \
OPER (TYPE) ((b >> SHR) & MASK)) & MASK) << SHR)
IWMMXT_OP_CMP(subn, uint8_t, uint16_t, uint32_t, -)
IWMMXT_OP_CMP(addn, uint8_t, uint16_t, uint32_t, +)
#undef CMP
/* TODO Signed- and Unsigned-Saturation */
#define CMP(SHR, TYPE, OPER, MASK) ((uint64_t) (((TYPE) ((a >> SHR) & MASK) \
OPER (TYPE) ((b >> SHR) & MASK)) & MASK) << SHR)
IWMMXT_OP_CMP(subu, uint8_t, uint16_t, uint32_t, -)
IWMMXT_OP_CMP(addu, uint8_t, uint16_t, uint32_t, +)
IWMMXT_OP_CMP(subs, int8_t, int16_t, int32_t, -)
IWMMXT_OP_CMP(adds, int8_t, int16_t, int32_t, +)
#undef CMP
#undef IWMMXT_OP_CMP
#define AVGB(SHR) ((( \
((a >> SHR) & 0xff) + ((b >> SHR) & 0xff) + round) >> 1) << SHR)
#define IWMMXT_OP_AVGB(r) \
uint64_t HELPER(iwmmxt_avgb##r)(CPUState *env, uint64_t a, uint64_t b) \
{ \
const int round = r; \
a = AVGB(0) | AVGB(8) | AVGB(16) | AVGB(24) | \
AVGB(32) | AVGB(40) | AVGB(48) | AVGB(56); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
SIMD8_SET(ZBIT8((a >> 0) & 0xff), SIMD_ZBIT, 0) | \
SIMD8_SET(ZBIT8((a >> 8) & 0xff), SIMD_ZBIT, 1) | \
SIMD8_SET(ZBIT8((a >> 16) & 0xff), SIMD_ZBIT, 2) | \
SIMD8_SET(ZBIT8((a >> 24) & 0xff), SIMD_ZBIT, 3) | \
SIMD8_SET(ZBIT8((a >> 32) & 0xff), SIMD_ZBIT, 4) | \
SIMD8_SET(ZBIT8((a >> 40) & 0xff), SIMD_ZBIT, 5) | \
SIMD8_SET(ZBIT8((a >> 48) & 0xff), SIMD_ZBIT, 6) | \
SIMD8_SET(ZBIT8((a >> 56) & 0xff), SIMD_ZBIT, 7); \
return a; \
}
IWMMXT_OP_AVGB(0)
IWMMXT_OP_AVGB(1)
#undef IWMMXT_OP_AVGB
#undef AVGB
#define AVGW(SHR) ((( \
((a >> SHR) & 0xffff) + ((b >> SHR) & 0xffff) + round) >> 1) << SHR)
#define IWMMXT_OP_AVGW(r) \
uint64_t HELPER(iwmmxt_avgw##r)(CPUState *env, uint64_t a, uint64_t b) \
{ \
const int round = r; \
a = AVGW(0) | AVGW(16) | AVGW(32) | AVGW(48); \
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = \
SIMD16_SET(ZBIT16((a >> 0) & 0xffff), SIMD_ZBIT, 0) | \
SIMD16_SET(ZBIT16((a >> 16) & 0xffff), SIMD_ZBIT, 1) | \
SIMD16_SET(ZBIT16((a >> 32) & 0xffff), SIMD_ZBIT, 2) | \
SIMD16_SET(ZBIT16((a >> 48) & 0xffff), SIMD_ZBIT, 3); \
return a; \
}
IWMMXT_OP_AVGW(0)
IWMMXT_OP_AVGW(1)
#undef IWMMXT_OP_AVGW
#undef AVGW
uint64_t HELPER(iwmmxt_msadb)(uint64_t a, uint64_t b)
{
a = ((((a >> 0 ) & 0xffff) * ((b >> 0) & 0xffff) +
((a >> 16) & 0xffff) * ((b >> 16) & 0xffff)) & 0xffffffff) |
((((a >> 32) & 0xffff) * ((b >> 32) & 0xffff) +
((a >> 48) & 0xffff) * ((b >> 48) & 0xffff)) << 32);
return a;
}
uint64_t HELPER(iwmmxt_align)(uint64_t a, uint64_t b, uint32_t n)
{
a >>= n << 3;
a |= b << (64 - (n << 3));
return a;
}
uint64_t HELPER(iwmmxt_insr)(uint64_t x, uint32_t a, uint32_t b, uint32_t n)
{
x &= ~((uint64_t) b << n);
x |= (uint64_t) (a & b) << n;
return x;
}
uint32_t HELPER(iwmmxt_setpsr_nz)(uint64_t x)
{
return SIMD64_SET((x == 0), SIMD_ZBIT) |
SIMD64_SET((x & (1ULL << 63)), SIMD_NBIT);
}
uint64_t HELPER(iwmmxt_bcstb)(uint32_t arg)
{
arg &= 0xff;
return
((uint64_t) arg << 0 ) | ((uint64_t) arg << 8 ) |
((uint64_t) arg << 16) | ((uint64_t) arg << 24) |
((uint64_t) arg << 32) | ((uint64_t) arg << 40) |
((uint64_t) arg << 48) | ((uint64_t) arg << 56);
}
uint64_t HELPER(iwmmxt_bcstw)(uint32_t arg)
{
arg &= 0xffff;
return
((uint64_t) arg << 0 ) | ((uint64_t) arg << 16) |
((uint64_t) arg << 32) | ((uint64_t) arg << 48);
}
uint64_t HELPER(iwmmxt_bcstl)(uint32_t arg)
{
return arg | ((uint64_t) arg << 32);
}
uint64_t HELPER(iwmmxt_addcb)(uint64_t x)
{
return
((x >> 0) & 0xff) + ((x >> 8) & 0xff) +
((x >> 16) & 0xff) + ((x >> 24) & 0xff) +
((x >> 32) & 0xff) + ((x >> 40) & 0xff) +
((x >> 48) & 0xff) + ((x >> 56) & 0xff);
}
uint64_t HELPER(iwmmxt_addcw)(uint64_t x)
{
return
((x >> 0) & 0xffff) + ((x >> 16) & 0xffff) +
((x >> 32) & 0xffff) + ((x >> 48) & 0xffff);
}
uint64_t HELPER(iwmmxt_addcl)(uint64_t x)
{
return (x & 0xffffffff) + (x >> 32);
}
uint32_t HELPER(iwmmxt_msbb)(uint64_t x)
{
return
((x >> 7) & 0x01) | ((x >> 14) & 0x02) |
((x >> 21) & 0x04) | ((x >> 28) & 0x08) |
((x >> 35) & 0x10) | ((x >> 42) & 0x20) |
((x >> 49) & 0x40) | ((x >> 56) & 0x80);
}
uint32_t HELPER(iwmmxt_msbw)(uint64_t x)
{
return
((x >> 15) & 0x01) | ((x >> 30) & 0x02) |
((x >> 45) & 0x04) | ((x >> 52) & 0x08);
}
uint32_t HELPER(iwmmxt_msbl)(uint64_t x)
{
return ((x >> 31) & 0x01) | ((x >> 62) & 0x02);
}
/* FIXME: Split wCASF setting into a separate op to avoid env use. */
uint64_t HELPER(iwmmxt_srlw)(CPUState *env, uint64_t x, uint32_t n)
{
x = (((x & (0xffffll << 0)) >> n) & (0xffffll << 0)) |
(((x & (0xffffll << 16)) >> n) & (0xffffll << 16)) |
(((x & (0xffffll << 32)) >> n) & (0xffffll << 32)) |
(((x & (0xffffll << 48)) >> n) & (0xffffll << 48));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) |
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3);
return x;
}
uint64_t HELPER(iwmmxt_srll)(CPUState *env, uint64_t x, uint32_t n)
{
x = ((x & (0xffffffffll << 0)) >> n) |
((x >> n) & (0xffffffffll << 32));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1);
return x;
}
uint64_t HELPER(iwmmxt_srlq)(CPUState *env, uint64_t x, uint32_t n)
{
x >>= n;
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_sllw)(CPUState *env, uint64_t x, uint32_t n)
{
x = (((x & (0xffffll << 0)) << n) & (0xffffll << 0)) |
(((x & (0xffffll << 16)) << n) & (0xffffll << 16)) |
(((x & (0xffffll << 32)) << n) & (0xffffll << 32)) |
(((x & (0xffffll << 48)) << n) & (0xffffll << 48));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) |
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3);
return x;
}
uint64_t HELPER(iwmmxt_slll)(CPUState *env, uint64_t x, uint32_t n)
{
x = ((x << n) & (0xffffffffll << 0)) |
((x & (0xffffffffll << 32)) << n);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1);
return x;
}
uint64_t HELPER(iwmmxt_sllq)(CPUState *env, uint64_t x, uint32_t n)
{
x <<= n;
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_sraw)(CPUState *env, uint64_t x, uint32_t n)
{
x = ((uint64_t) ((EXTEND16(x >> 0) >> n) & 0xffff) << 0) |
((uint64_t) ((EXTEND16(x >> 16) >> n) & 0xffff) << 16) |
((uint64_t) ((EXTEND16(x >> 32) >> n) & 0xffff) << 32) |
((uint64_t) ((EXTEND16(x >> 48) >> n) & 0xffff) << 48);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) |
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3);
return x;
}
uint64_t HELPER(iwmmxt_sral)(CPUState *env, uint64_t x, uint32_t n)
{
x = (((EXTEND32(x >> 0) >> n) & 0xffffffff) << 0) |
(((EXTEND32(x >> 32) >> n) & 0xffffffff) << 32);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1);
return x;
}
uint64_t HELPER(iwmmxt_sraq)(CPUState *env, uint64_t x, uint32_t n)
{
x = (int64_t) x >> n;
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_rorw)(CPUState *env, uint64_t x, uint32_t n)
{
x = ((((x & (0xffffll << 0)) >> n) |
((x & (0xffffll << 0)) << (16 - n))) & (0xffffll << 0)) |
((((x & (0xffffll << 16)) >> n) |
((x & (0xffffll << 16)) << (16 - n))) & (0xffffll << 16)) |
((((x & (0xffffll << 32)) >> n) |
((x & (0xffffll << 32)) << (16 - n))) & (0xffffll << 32)) |
((((x & (0xffffll << 48)) >> n) |
((x & (0xffffll << 48)) << (16 - n))) & (0xffffll << 48));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) |
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3);
return x;
}
uint64_t HELPER(iwmmxt_rorl)(CPUState *env, uint64_t x, uint32_t n)
{
x = ((x & (0xffffffffll << 0)) >> n) |
((x >> n) & (0xffffffffll << 32)) |
((x << (32 - n)) & (0xffffffffll << 0)) |
((x & (0xffffffffll << 32)) << (32 - n));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(x >> 0, 0) | NZBIT32(x >> 32, 1);
return x;
}
uint64_t HELPER(iwmmxt_rorq)(CPUState *env, uint64_t x, uint32_t n)
{
x = (x >> n) | (x << (64 - n));
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_shufh)(CPUState *env, uint64_t x, uint32_t n)
{
x = (((x >> ((n << 4) & 0x30)) & 0xffff) << 0) |
(((x >> ((n << 2) & 0x30)) & 0xffff) << 16) |
(((x >> ((n << 0) & 0x30)) & 0xffff) << 32) |
(((x >> ((n >> 2) & 0x30)) & 0xffff) << 48);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(x >> 0, 0) | NZBIT16(x >> 16, 1) |
NZBIT16(x >> 32, 2) | NZBIT16(x >> 48, 3);
return x;
}
/* TODO: Unsigned-Saturation */
uint64_t HELPER(iwmmxt_packuw)(CPUState *env, uint64_t a, uint64_t b)
{
a = (((a >> 0) & 0xff) << 0) | (((a >> 16) & 0xff) << 8) |
(((a >> 32) & 0xff) << 16) | (((a >> 48) & 0xff) << 24) |
(((b >> 0) & 0xff) << 32) | (((b >> 16) & 0xff) << 40) |
(((b >> 32) & 0xff) << 48) | (((b >> 48) & 0xff) << 56);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT8(a >> 0, 0) | NZBIT8(a >> 8, 1) |
NZBIT8(a >> 16, 2) | NZBIT8(a >> 24, 3) |
NZBIT8(a >> 32, 4) | NZBIT8(a >> 40, 5) |
NZBIT8(a >> 48, 6) | NZBIT8(a >> 56, 7);
return a;
}
uint64_t HELPER(iwmmxt_packul)(CPUState *env, uint64_t a, uint64_t b)
{
a = (((a >> 0) & 0xffff) << 0) | (((a >> 32) & 0xffff) << 16) |
(((b >> 0) & 0xffff) << 32) | (((b >> 32) & 0xffff) << 48);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(a >> 0, 0) | NZBIT16(a >> 16, 1) |
NZBIT16(a >> 32, 2) | NZBIT16(a >> 48, 3);
return a;
}
uint64_t HELPER(iwmmxt_packuq)(CPUState *env, uint64_t a, uint64_t b)
{
a = (a & 0xffffffff) | ((b & 0xffffffff) << 32);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(a >> 0, 0) | NZBIT32(a >> 32, 1);
return a;
}
/* TODO: Signed-Saturation */
uint64_t HELPER(iwmmxt_packsw)(CPUState *env, uint64_t a, uint64_t b)
{
a = (((a >> 0) & 0xff) << 0) | (((a >> 16) & 0xff) << 8) |
(((a >> 32) & 0xff) << 16) | (((a >> 48) & 0xff) << 24) |
(((b >> 0) & 0xff) << 32) | (((b >> 16) & 0xff) << 40) |
(((b >> 32) & 0xff) << 48) | (((b >> 48) & 0xff) << 56);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT8(a >> 0, 0) | NZBIT8(a >> 8, 1) |
NZBIT8(a >> 16, 2) | NZBIT8(a >> 24, 3) |
NZBIT8(a >> 32, 4) | NZBIT8(a >> 40, 5) |
NZBIT8(a >> 48, 6) | NZBIT8(a >> 56, 7);
return a;
}
uint64_t HELPER(iwmmxt_packsl)(CPUState *env, uint64_t a, uint64_t b)
{
a = (((a >> 0) & 0xffff) << 0) | (((a >> 32) & 0xffff) << 16) |
(((b >> 0) & 0xffff) << 32) | (((b >> 32) & 0xffff) << 48);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT16(a >> 0, 0) | NZBIT16(a >> 16, 1) |
NZBIT16(a >> 32, 2) | NZBIT16(a >> 48, 3);
return a;
}
uint64_t HELPER(iwmmxt_packsq)(CPUState *env, uint64_t a, uint64_t b)
{
a = (a & 0xffffffff) | ((b & 0xffffffff) << 32);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] =
NZBIT32(a >> 0, 0) | NZBIT32(a >> 32, 1);
return a;
}
uint64_t HELPER(iwmmxt_muladdsl)(uint64_t c, uint32_t a, uint32_t b)
{
return c + ((int32_t) EXTEND32(a) * (int32_t) EXTEND32(b));
}
uint64_t HELPER(iwmmxt_muladdsw)(uint64_t c, uint32_t a, uint32_t b)
{
c += EXTEND32(EXTEND16S((a >> 0) & 0xffff) *
EXTEND16S((b >> 0) & 0xffff));
c += EXTEND32(EXTEND16S((a >> 16) & 0xffff) *
EXTEND16S((b >> 16) & 0xffff));
return c;
}
uint64_t HELPER(iwmmxt_muladdswl)(uint64_t c, uint32_t a, uint32_t b)
{
return c + (EXTEND32(EXTEND16S(a & 0xffff) *
EXTEND16S(b & 0xffff)));
}