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op_helper.c
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/*
* PowerPC emulation helpers for qemu.
*
* Copyright (c) 2003-2007 Jocelyn Mayer
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "exec.h"
#include "op_helper.h"
#define MEMSUFFIX _raw
#include "op_helper.h"
#include "op_helper_mem.h"
#if !defined(CONFIG_USER_ONLY)
#define MEMSUFFIX _user
#include "op_helper.h"
#include "op_helper_mem.h"
#define MEMSUFFIX _kernel
#include "op_helper.h"
#include "op_helper_mem.h"
#endif
//#define DEBUG_OP
//#define DEBUG_EXCEPTIONS
//#define DEBUG_SOFTWARE_TLB
//#define FLUSH_ALL_TLBS
/*****************************************************************************/
/* Exceptions processing helpers */
void cpu_loop_exit (void)
{
longjmp(env->jmp_env, 1);
}
void do_raise_exception_err (uint32_t exception, int error_code)
{
#if 0
printf("Raise exception %3x code : %d\n", exception, error_code);
#endif
switch (exception) {
case EXCP_PROGRAM:
if (error_code == EXCP_FP && msr_fe0 == 0 && msr_fe1 == 0)
return;
break;
default:
break;
}
env->exception_index = exception;
env->error_code = error_code;
cpu_loop_exit();
}
void do_raise_exception (uint32_t exception)
{
do_raise_exception_err(exception, 0);
}
void cpu_dump_EA (target_ulong EA);
void do_print_mem_EA (target_ulong EA)
{
cpu_dump_EA(EA);
}
/*****************************************************************************/
/* Registers load and stores */
void do_load_cr (void)
{
T0 = (env->crf[0] << 28) |
(env->crf[1] << 24) |
(env->crf[2] << 20) |
(env->crf[3] << 16) |
(env->crf[4] << 12) |
(env->crf[5] << 8) |
(env->crf[6] << 4) |
(env->crf[7] << 0);
}
void do_store_cr (uint32_t mask)
{
int i, sh;
for (i = 0, sh = 7; i < 8; i++, sh --) {
if (mask & (1 << sh))
env->crf[i] = (T0 >> (sh * 4)) & 0xFUL;
}
}
void do_load_xer (void)
{
T0 = (xer_so << XER_SO) |
(xer_ov << XER_OV) |
(xer_ca << XER_CA) |
(xer_bc << XER_BC) |
(xer_cmp << XER_CMP);
}
void do_store_xer (void)
{
xer_so = (T0 >> XER_SO) & 0x01;
xer_ov = (T0 >> XER_OV) & 0x01;
xer_ca = (T0 >> XER_CA) & 0x01;
xer_cmp = (T0 >> XER_CMP) & 0xFF;
xer_bc = (T0 >> XER_BC) & 0x7F;
}
void do_load_fpscr (void)
{
/* The 32 MSB of the target fpr are undefined.
* They'll be zero...
*/
union {
float64 d;
struct {
uint32_t u[2];
} s;
} u;
int i;
#if defined(WORDS_BIGENDIAN)
#define WORD0 0
#define WORD1 1
#else
#define WORD0 1
#define WORD1 0
#endif
u.s.u[WORD0] = 0;
u.s.u[WORD1] = 0;
for (i = 0; i < 8; i++)
u.s.u[WORD1] |= env->fpscr[i] << (4 * i);
FT0 = u.d;
}
void do_store_fpscr (uint32_t mask)
{
/*
* We use only the 32 LSB of the incoming fpr
*/
union {
double d;
struct {
uint32_t u[2];
} s;
} u;
int i, rnd_type;
u.d = FT0;
if (mask & 0x80)
env->fpscr[0] = (env->fpscr[0] & 0x9) | ((u.s.u[WORD1] >> 28) & ~0x9);
for (i = 1; i < 7; i++) {
if (mask & (1 << (7 - i)))
env->fpscr[i] = (u.s.u[WORD1] >> (4 * (7 - i))) & 0xF;
}
/* TODO: update FEX & VX */
/* Set rounding mode */
switch (env->fpscr[0] & 0x3) {
case 0:
/* Best approximation (round to nearest) */
rnd_type = float_round_nearest_even;
break;
case 1:
/* Smaller magnitude (round toward zero) */
rnd_type = float_round_to_zero;
break;
case 2:
/* Round toward +infinite */
rnd_type = float_round_up;
break;
default:
case 3:
/* Round toward -infinite */
rnd_type = float_round_down;
break;
}
set_float_rounding_mode(rnd_type, &env->fp_status);
}
target_ulong ppc_load_dump_spr (int sprn)
{
if (loglevel != 0) {
fprintf(logfile, "Read SPR %d %03x => " ADDRX "\n",
sprn, sprn, env->spr[sprn]);
}
return env->spr[sprn];
}
void ppc_store_dump_spr (int sprn, target_ulong val)
{
if (loglevel != 0) {
fprintf(logfile, "Write SPR %d %03x => " ADDRX " <= " ADDRX "\n",
sprn, sprn, env->spr[sprn], val);
}
env->spr[sprn] = val;
}
/*****************************************************************************/
/* Fixed point operations helpers */
#if defined(TARGET_PPC64)
static void add128 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
{
*plow += a;
/* carry test */
if (*plow < a)
(*phigh)++;
*phigh += b;
}
static void neg128 (uint64_t *plow, uint64_t *phigh)
{
*plow = ~ *plow;
*phigh = ~ *phigh;
add128(plow, phigh, 1, 0);
}
static void mul64 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
{
uint32_t a0, a1, b0, b1;
uint64_t v;
a0 = a;
a1 = a >> 32;
b0 = b;
b1 = b >> 32;
v = (uint64_t)a0 * (uint64_t)b0;
*plow = v;
*phigh = 0;
v = (uint64_t)a0 * (uint64_t)b1;
add128(plow, phigh, v << 32, v >> 32);
v = (uint64_t)a1 * (uint64_t)b0;
add128(plow, phigh, v << 32, v >> 32);
v = (uint64_t)a1 * (uint64_t)b1;
*phigh += v;
#if defined(DEBUG_MULDIV)
printf("mul: 0x%016llx * 0x%016llx = 0x%016llx%016llx\n",
a, b, *phigh, *plow);
#endif
}
void do_mul64 (uint64_t *plow, uint64_t *phigh)
{
mul64(plow, phigh, T0, T1);
}
static void imul64 (uint64_t *plow, uint64_t *phigh, int64_t a, int64_t b)
{
int sa, sb;
sa = (a < 0);
if (sa)
a = -a;
sb = (b < 0);
if (sb)
b = -b;
mul64(plow, phigh, a, b);
if (sa ^ sb) {
neg128(plow, phigh);
}
}
void do_imul64 (uint64_t *plow, uint64_t *phigh)
{
imul64(plow, phigh, T0, T1);
}
#endif
void do_adde (void)
{
T2 = T0;
T0 += T1 + xer_ca;
if (likely(!((uint32_t)T0 < (uint32_t)T2 ||
(xer_ca == 1 && (uint32_t)T0 == (uint32_t)T2)))) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#if defined(TARGET_PPC64)
void do_adde_64 (void)
{
T2 = T0;
T0 += T1 + xer_ca;
if (likely(!((uint64_t)T0 < (uint64_t)T2 ||
(xer_ca == 1 && (uint64_t)T0 == (uint64_t)T2)))) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#endif
void do_addmeo (void)
{
T1 = T0;
T0 += xer_ca + (-1);
if (likely(!((uint32_t)T1 &
((uint32_t)T1 ^ (uint32_t)T0) & (1UL << 31)))) {
xer_ov = 0;
} else {
xer_so = 1;
xer_ov = 1;
}
if (likely(T1 != 0))
xer_ca = 1;
}
#if defined(TARGET_PPC64)
void do_addmeo_64 (void)
{
T1 = T0;
T0 += xer_ca + (-1);
if (likely(!((uint64_t)T1 &
((uint64_t)T1 ^ (uint64_t)T0) & (1ULL << 63)))) {
xer_ov = 0;
} else {
xer_so = 1;
xer_ov = 1;
}
if (likely(T1 != 0))
xer_ca = 1;
}
#endif
void do_divwo (void)
{
if (likely(!(((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) ||
(int32_t)T1 == 0))) {
xer_ov = 0;
T0 = (int32_t)T0 / (int32_t)T1;
} else {
xer_so = 1;
xer_ov = 1;
T0 = (-1) * ((uint32_t)T0 >> 31);
}
}
#if defined(TARGET_PPC64)
void do_divdo (void)
{
if (likely(!(((int64_t)T0 == INT64_MIN && (int64_t)T1 == -1ULL) ||
(int64_t)T1 == 0))) {
xer_ov = 0;
T0 = (int64_t)T0 / (int64_t)T1;
} else {
xer_so = 1;
xer_ov = 1;
T0 = (-1ULL) * ((uint64_t)T0 >> 63);
}
}
#endif
void do_divwuo (void)
{
if (likely((uint32_t)T1 != 0)) {
xer_ov = 0;
T0 = (uint32_t)T0 / (uint32_t)T1;
} else {
xer_so = 1;
xer_ov = 1;
T0 = 0;
}
}
#if defined(TARGET_PPC64)
void do_divduo (void)
{
if (likely((uint64_t)T1 != 0)) {
xer_ov = 0;
T0 = (uint64_t)T0 / (uint64_t)T1;
} else {
xer_so = 1;
xer_ov = 1;
T0 = 0;
}
}
#endif
void do_mullwo (void)
{
int64_t res = (int64_t)T0 * (int64_t)T1;
if (likely((int32_t)res == res)) {
xer_ov = 0;
} else {
xer_ov = 1;
xer_so = 1;
}
T0 = (int32_t)res;
}
#if defined(TARGET_PPC64)
void do_mulldo (void)
{
int64_t th;
uint64_t tl;
do_imul64(&tl, &th);
if (likely(th == 0)) {
xer_ov = 0;
} else {
xer_ov = 1;
xer_so = 1;
}
T0 = (int64_t)tl;
}
#endif
void do_nego (void)
{
if (likely((int32_t)T0 != INT32_MIN)) {
xer_ov = 0;
T0 = -(int32_t)T0;
} else {
xer_ov = 1;
xer_so = 1;
}
}
#if defined(TARGET_PPC64)
void do_nego_64 (void)
{
if (likely((int64_t)T0 != INT64_MIN)) {
xer_ov = 0;
T0 = -(int64_t)T0;
} else {
xer_ov = 1;
xer_so = 1;
}
}
#endif
void do_subfe (void)
{
T0 = T1 + ~T0 + xer_ca;
if (likely((uint32_t)T0 >= (uint32_t)T1 &&
(xer_ca == 0 || (uint32_t)T0 != (uint32_t)T1))) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#if defined(TARGET_PPC64)
void do_subfe_64 (void)
{
T0 = T1 + ~T0 + xer_ca;
if (likely((uint64_t)T0 >= (uint64_t)T1 &&
(xer_ca == 0 || (uint64_t)T0 != (uint64_t)T1))) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#endif
void do_subfmeo (void)
{
T1 = T0;
T0 = ~T0 + xer_ca - 1;
if (likely(!((uint32_t)~T1 & ((uint32_t)~T1 ^ (uint32_t)T0) &
(1UL << 31)))) {
xer_ov = 0;
} else {
xer_so = 1;
xer_ov = 1;
}
if (likely((uint32_t)T1 != UINT32_MAX))
xer_ca = 1;
}
#if defined(TARGET_PPC64)
void do_subfmeo_64 (void)
{
T1 = T0;
T0 = ~T0 + xer_ca - 1;
if (likely(!((uint64_t)~T1 & ((uint64_t)~T1 ^ (uint64_t)T0) &
(1ULL << 63)))) {
xer_ov = 0;
} else {
xer_so = 1;
xer_ov = 1;
}
if (likely((uint64_t)T1 != UINT64_MAX))
xer_ca = 1;
}
#endif
void do_subfzeo (void)
{
T1 = T0;
T0 = ~T0 + xer_ca;
if (likely(!(((uint32_t)~T1 ^ UINT32_MAX) &
((uint32_t)(~T1) ^ (uint32_t)T0) & (1UL << 31)))) {
xer_ov = 0;
} else {
xer_ov = 1;
xer_so = 1;
}
if (likely((uint32_t)T0 >= (uint32_t)~T1)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#if defined(TARGET_PPC64)
void do_subfzeo_64 (void)
{
T1 = T0;
T0 = ~T0 + xer_ca;
if (likely(!(((uint64_t)~T1 ^ UINT64_MAX) &
((uint64_t)(~T1) ^ (uint64_t)T0) & (1ULL << 63)))) {
xer_ov = 0;
} else {
xer_ov = 1;
xer_so = 1;
}
if (likely((uint64_t)T0 >= (uint64_t)~T1)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
#endif
/* shift right arithmetic helper */
void do_sraw (void)
{
int32_t ret;
if (likely(!(T1 & 0x20UL))) {
if (likely((uint32_t)T1 != 0)) {
ret = (int32_t)T0 >> (T1 & 0x1fUL);
if (likely(ret >= 0 || ((int32_t)T0 & ((1 << T1) - 1)) == 0)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
} else {
ret = T0;
xer_ca = 0;
}
} else {
ret = (-1) * ((uint32_t)T0 >> 31);
if (likely(ret >= 0 || ((uint32_t)T0 & ~0x80000000UL) == 0)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
T0 = ret;
}
#if defined(TARGET_PPC64)
void do_srad (void)
{
int64_t ret;
if (likely(!(T1 & 0x40UL))) {
if (likely((uint64_t)T1 != 0)) {
ret = (int64_t)T0 >> (T1 & 0x3FUL);
if (likely(ret >= 0 || ((int64_t)T0 & ((1 << T1) - 1)) == 0)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
} else {
ret = T0;
xer_ca = 0;
}
} else {
ret = (-1) * ((uint64_t)T0 >> 63);
if (likely(ret >= 0 || ((uint64_t)T0 & ~0x8000000000000000ULL) == 0)) {
xer_ca = 0;
} else {
xer_ca = 1;
}
}
T0 = ret;
}
#endif
static inline int popcnt (uint32_t val)
{
int i;
for (i = 0; val != 0;)
val = val ^ (val - 1);
return i;
}
void do_popcntb (void)
{
uint32_t ret;
int i;
ret = 0;
for (i = 0; i < 32; i += 8)
ret |= popcnt((T0 >> i) & 0xFF) << i;
T0 = ret;
}
#if defined(TARGET_PPC64)
void do_popcntb_64 (void)
{
uint64_t ret;
int i;
ret = 0;
for (i = 0; i < 64; i += 8)
ret |= popcnt((T0 >> i) & 0xFF) << i;
T0 = ret;
}
#endif
/*****************************************************************************/
/* Floating point operations helpers */
void do_fctiw (void)
{
union {
double d;
uint64_t i;
} p;
p.i = float64_to_int32(FT0, &env->fp_status);
#if USE_PRECISE_EMULATION
/* XXX: higher bits are not supposed to be significant.
* to make tests easier, return the same as a real PowerPC 750 (aka G3)
*/
p.i |= 0xFFF80000ULL << 32;
#endif
FT0 = p.d;
}
void do_fctiwz (void)
{
union {
double d;
uint64_t i;
} p;
p.i = float64_to_int32_round_to_zero(FT0, &env->fp_status);
#if USE_PRECISE_EMULATION
/* XXX: higher bits are not supposed to be significant.
* to make tests easier, return the same as a real PowerPC 750 (aka G3)
*/
p.i |= 0xFFF80000ULL << 32;
#endif
FT0 = p.d;
}
#if defined(TARGET_PPC64)
void do_fcfid (void)
{
union {
double d;
uint64_t i;
} p;
p.d = FT0;
FT0 = int64_to_float64(p.i, &env->fp_status);
}
void do_fctid (void)
{
union {
double d;
uint64_t i;
} p;
p.i = float64_to_int64(FT0, &env->fp_status);
FT0 = p.d;
}
void do_fctidz (void)
{
union {
double d;
uint64_t i;
} p;
p.i = float64_to_int64_round_to_zero(FT0, &env->fp_status);
FT0 = p.d;
}
#endif
#if USE_PRECISE_EMULATION
void do_fmadd (void)
{
#ifdef FLOAT128
float128 ft0_128, ft1_128;
ft0_128 = float64_to_float128(FT0, &env->fp_status);
ft1_128 = float64_to_float128(FT1, &env->fp_status);
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
ft1_128 = float64_to_float128(FT2, &env->fp_status);
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
FT0 = float128_to_float64(ft0_128, &env->fp_status);
#else
/* This is OK on x86 hosts */
FT0 = (FT0 * FT1) + FT2;
#endif
}
void do_fmsub (void)
{
#ifdef FLOAT128
float128 ft0_128, ft1_128;
ft0_128 = float64_to_float128(FT0, &env->fp_status);
ft1_128 = float64_to_float128(FT1, &env->fp_status);
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
ft1_128 = float64_to_float128(FT2, &env->fp_status);
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
FT0 = float128_to_float64(ft0_128, &env->fp_status);
#else
/* This is OK on x86 hosts */
FT0 = (FT0 * FT1) - FT2;
#endif
}
#endif /* USE_PRECISE_EMULATION */
void do_fnmadd (void)
{
#if USE_PRECISE_EMULATION
#ifdef FLOAT128
float128 ft0_128, ft1_128;
ft0_128 = float64_to_float128(FT0, &env->fp_status);
ft1_128 = float64_to_float128(FT1, &env->fp_status);
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
ft1_128 = float64_to_float128(FT2, &env->fp_status);
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status);
FT0 = float128_to_float64(ft0_128, &env->fp_status);
#else
/* This is OK on x86 hosts */
FT0 = (FT0 * FT1) + FT2;
#endif
#else
FT0 = float64_mul(FT0, FT1, &env->fp_status);
FT0 = float64_add(FT0, FT2, &env->fp_status);
#endif
if (likely(!isnan(FT0)))
FT0 = float64_chs(FT0);
}
void do_fnmsub (void)
{
#if USE_PRECISE_EMULATION
#ifdef FLOAT128
float128 ft0_128, ft1_128;
ft0_128 = float64_to_float128(FT0, &env->fp_status);
ft1_128 = float64_to_float128(FT1, &env->fp_status);
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status);
ft1_128 = float64_to_float128(FT2, &env->fp_status);
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status);
FT0 = float128_to_float64(ft0_128, &env->fp_status);
#else
/* This is OK on x86 hosts */
FT0 = (FT0 * FT1) - FT2;
#endif
#else
FT0 = float64_mul(FT0, FT1, &env->fp_status);
FT0 = float64_sub(FT0, FT2, &env->fp_status);
#endif
if (likely(!isnan(FT0)))
FT0 = float64_chs(FT0);
}
void do_fsqrt (void)
{
FT0 = float64_sqrt(FT0, &env->fp_status);
}
void do_fres (void)
{
union {
double d;
uint64_t i;
} p;
if (likely(isnormal(FT0))) {
#if USE_PRECISE_EMULATION
FT0 = float64_div(1.0, FT0, &env->fp_status);
FT0 = float64_to_float32(FT0, &env->fp_status);
#else
FT0 = float32_div(1.0, FT0, &env->fp_status);
#endif
} else {
p.d = FT0;
if (p.i == 0x8000000000000000ULL) {
p.i = 0xFFF0000000000000ULL;
} else if (p.i == 0x0000000000000000ULL) {
p.i = 0x7FF0000000000000ULL;
} else if (isnan(FT0)) {
p.i = 0x7FF8000000000000ULL;
} else if (FT0 < 0.0) {
p.i = 0x8000000000000000ULL;
} else {
p.i = 0x0000000000000000ULL;
}
FT0 = p.d;
}
}
void do_frsqrte (void)
{
union {
double d;
uint64_t i;
} p;
if (likely(isnormal(FT0) && FT0 > 0.0)) {
FT0 = float64_sqrt(FT0, &env->fp_status);
FT0 = float32_div(1.0, FT0, &env->fp_status);
} else {
p.d = FT0;
if (p.i == 0x8000000000000000ULL) {
p.i = 0xFFF0000000000000ULL;
} else if (p.i == 0x0000000000000000ULL) {
p.i = 0x7FF0000000000000ULL;
} else if (isnan(FT0)) {
if (!(p.i & 0x0008000000000000ULL))
p.i |= 0x000FFFFFFFFFFFFFULL;
} else if (FT0 < 0) {
p.i = 0x7FF8000000000000ULL;
} else {
p.i = 0x0000000000000000ULL;
}
FT0 = p.d;
}
}
void do_fsel (void)
{
if (FT0 >= 0)
FT0 = FT1;
else
FT0 = FT2;
}
void do_fcmpu (void)
{
if (likely(!isnan(FT0) && !isnan(FT1))) {
if (float64_lt(FT0, FT1, &env->fp_status)) {
T0 = 0x08UL;
} else if (!float64_le(FT0, FT1, &env->fp_status)) {
T0 = 0x04UL;
} else {
T0 = 0x02UL;
}
} else {
T0 = 0x01UL;
env->fpscr[4] |= 0x1;
env->fpscr[6] |= 0x1;
}
env->fpscr[3] = T0;
}
void do_fcmpo (void)
{
env->fpscr[4] &= ~0x1;
if (likely(!isnan(FT0) && !isnan(FT1))) {
if (float64_lt(FT0, FT1, &env->fp_status)) {
T0 = 0x08UL;
} else if (!float64_le(FT0, FT1, &env->fp_status)) {
T0 = 0x04UL;
} else {
T0 = 0x02UL;
}
} else {
T0 = 0x01UL;
env->fpscr[4] |= 0x1;
if (!float64_is_signaling_nan(FT0) || !float64_is_signaling_nan(FT1)) {
/* Quiet NaN case */
env->fpscr[6] |= 0x1;
if (!(env->fpscr[1] & 0x8))
env->fpscr[4] |= 0x8;
} else {
env->fpscr[4] |= 0x8;
}
}
env->fpscr[3] = T0;
}
#if !defined (CONFIG_USER_ONLY)
void cpu_dump_rfi (target_ulong RA, target_ulong msr);
void do_rfi (void)
{
#if defined(TARGET_PPC64)
if (env->spr[SPR_SRR1] & (1ULL << MSR_SF)) {
env->nip = (uint64_t)(env->spr[SPR_SRR0] & ~0x00000003);
do_store_msr(env, (uint64_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL));
} else {
env->nip = (uint32_t)(env->spr[SPR_SRR0] & ~0x00000003);
ppc_store_msr_32(env, (uint32_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL));
}
#else
env->nip = (uint32_t)(env->spr[SPR_SRR0] & ~0x00000003);
do_store_msr(env, (uint32_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL));
#endif
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
#if defined(TARGET_PPC64)
void do_rfid (void)
{
if (env->spr[SPR_SRR1] & (1ULL << MSR_SF)) {
env->nip = (uint64_t)(env->spr[SPR_SRR0] & ~0x00000003);
do_store_msr(env, (uint64_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL));
} else {
env->nip = (uint32_t)(env->spr[SPR_SRR0] & ~0x00000003);
do_store_msr(env, (uint32_t)(env->spr[SPR_SRR1] & ~0xFFFF0000UL));
}
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
#endif
#endif
void do_tw (int flags)
{
if (!likely(!(((int32_t)T0 < (int32_t)T1 && (flags & 0x10)) ||
((int32_t)T0 > (int32_t)T1 && (flags & 0x08)) ||
((int32_t)T0 == (int32_t)T1 && (flags & 0x04)) ||
((uint32_t)T0 < (uint32_t)T1 && (flags & 0x02)) ||
((uint32_t)T0 > (uint32_t)T1 && (flags & 0x01))))) {
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP);
}
}
#if defined(TARGET_PPC64)
void do_td (int flags)
{
if (!likely(!(((int64_t)T0 < (int64_t)T1 && (flags & 0x10)) ||
((int64_t)T0 > (int64_t)T1 && (flags & 0x08)) ||
((int64_t)T0 == (int64_t)T1 && (flags & 0x04)) ||
((uint64_t)T0 < (uint64_t)T1 && (flags & 0x02)) ||
((uint64_t)T0 > (uint64_t)T1 && (flags & 0x01)))))
do_raise_exception_err(EXCP_PROGRAM, EXCP_TRAP);
}
#endif
/*****************************************************************************/
/* PowerPC 601 specific instructions (POWER bridge) */
void do_POWER_abso (void)
{
if ((uint32_t)T0 == INT32_MIN) {
T0 = INT32_MAX;
xer_ov = 1;
xer_so = 1;
} else {
T0 = -T0;
xer_ov = 0;
}
}
void do_POWER_clcs (void)
{
switch (T0) {
case 0x0CUL:
/* Instruction cache line size */
T0 = ICACHE_LINE_SIZE;
break;
case 0x0DUL:
/* Data cache line size */
T0 = DCACHE_LINE_SIZE;
break;
case 0x0EUL:
/* Minimum cache line size */
T0 = ICACHE_LINE_SIZE < DCACHE_LINE_SIZE ?
ICACHE_LINE_SIZE : DCACHE_LINE_SIZE;
break;
case 0x0FUL:
/* Maximum cache line size */