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unicorn/qemu/target/arm/iwmmxt_helper.c
Chetan Pant c7f6786089 arm tcg cpus: Fix Lesser GPL version number 
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.

Backports 50f57e09fda4b7ffbc5ba62aad6cebf660824023
2021-03-02 13:30:35 -05:00

674 lines
27 KiB
C
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#include "qemu/osdep.h"
/*
* 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 2.1 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/exec-all.h"
#include "exec/helper-proto.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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)))(CPUARMState *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)(CPUARMState *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)(CPUARMState *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_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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *env, uint64_t x, uint32_t n)
{
x >>= n;
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_sllw)(CPUARMState *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)(CPUARMState *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)(CPUARMState *env, uint64_t x, uint32_t n)
{
x <<= n;
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_sraw)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *env, uint64_t x, uint32_t n)
{
x = ror64(x, n);
env->iwmmxt.cregs[ARM_IWMMXT_wCASF] = NZBIT64(x);
return x;
}
uint64_t HELPER(iwmmxt_shufh)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)(CPUARMState *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)));
}
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