haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity
qemu-patch-raspberry4/target-ppc/op_helper.c
j_mayer 7dbe11acd8 Handle all MMU models in switches, even if it's just to abort because of lack 
of supporting code.
Implement 74xx software TLB model.
Keep 74xx with software TLB disabled, as Linux is not able to handle TLB miss
  on those processors.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3307 c046a42c-6fe2-441c-8c8c-71466251a162
2007-10-01 05:16:57 +00:00

2697 lines
61 KiB
C
Raw Blame History

/*
* 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
/*****************************************************************************/
/* Exceptions processing helpers */
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 POWERPC_EXCP_PROGRAM:
if (error_code == POWERPC_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;
}
#if defined(TARGET_PPC64)
void do_store_pri (int prio)
{
env->spr[SPR_PPR] &= ~0x001C000000000000ULL;
env->spr[SPR_PPR] |= ((uint64_t)prio & 0x7) << 50;
}
#endif
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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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_ov = 1;
xer_so = 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
static inline void do_fri (int rounding_mode)
{
int curmode;
curmode = env->fp_status.float_rounding_mode;
set_float_rounding_mode(rounding_mode, &env->fp_status);
FT0 = float64_round_to_int(FT0, &env->fp_status);
set_float_rounding_mode(curmode, &env->fp_status);
}
void do_frin (void)
{
do_fri(float_round_nearest_even);
}
void do_friz (void)
{
do_fri(float_round_to_zero);
}
void do_frip (void)
{
do_fri(float_round_up);
}
void do_frim (void)
{
do_fri(float_round_down);
}
#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_fre (void)
{
union {
double d;
uint64_t i;
} p;
if (likely(isnormal(FT0))) {
FT0 = float64_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)) {
p.i = 0x7FF8000000000000ULL;
} else if (FT0 < 0.0) {
p.i = 0x8000000000000000ULL;
} else {
p.i = 0x0000000000000000ULL;
}
FT0 = p.d;
}
}
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
#if defined(TARGET_PPC64H)
void do_hrfid (void)
{
if (env->spr[SPR_HSRR1] & (1ULL << MSR_SF)) {
env->nip = (uint64_t)(env->spr[SPR_HSRR0] & ~0x00000003);
do_store_msr(env, (uint64_t)(env->spr[SPR_HSRR1] & ~0xFFFF0000UL));
} else {
env->nip = (uint32_t)(env->spr[SPR_HSRR0] & ~0x00000003);
do_store_msr(env, (uint32_t)(env->spr[SPR_HSRR1] & ~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(POWERPC_EXCP_PROGRAM, POWERPC_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(POWERPC_EXCP_PROGRAM, POWERPC_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 */
T0 = ICACHE_LINE_SIZE > DCACHE_LINE_SIZE ?
ICACHE_LINE_SIZE : DCACHE_LINE_SIZE;
break;
default:
/* Undefined */
break;
}
}
void do_POWER_div (void)
{
uint64_t tmp;
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) {
T0 = (long)((-1) * (T0 >> 31));
env->spr[SPR_MQ] = 0;
} else {
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
env->spr[SPR_MQ] = tmp % T1;
T0 = tmp / (int32_t)T1;
}
}
void do_POWER_divo (void)
{
int64_t tmp;
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) {
T0 = (long)((-1) * (T0 >> 31));
env->spr[SPR_MQ] = 0;
xer_ov = 1;
xer_so = 1;
} else {
tmp = ((uint64_t)T0 << 32) | env->spr[SPR_MQ];
env->spr[SPR_MQ] = tmp % T1;
tmp /= (int32_t)T1;
if (tmp > (int64_t)INT32_MAX || tmp < (int64_t)INT32_MIN) {
xer_ov = 1;
xer_so = 1;
} else {
xer_ov = 0;
}
T0 = tmp;
}
}
void do_POWER_divs (void)
{
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) {
T0 = (long)((-1) * (T0 >> 31));
env->spr[SPR_MQ] = 0;
} else {
env->spr[SPR_MQ] = T0 % T1;
T0 = (int32_t)T0 / (int32_t)T1;
}
}
void do_POWER_divso (void)
{
if (((int32_t)T0 == INT32_MIN && (int32_t)T1 == -1) || (int32_t)T1 == 0) {
T0 = (long)((-1) * (T0 >> 31));
env->spr[SPR_MQ] = 0;
xer_ov = 1;
xer_so = 1;
} else {
T0 = (int32_t)T0 / (int32_t)T1;
env->spr[SPR_MQ] = (int32_t)T0 % (int32_t)T1;
xer_ov = 0;
}
}
void do_POWER_dozo (void)
{
if ((int32_t)T1 > (int32_t)T0) {
T2 = T0;
T0 = T1 - T0;
if (((uint32_t)(~T2) ^ (uint32_t)T1 ^ UINT32_MAX) &
((uint32_t)(~T2) ^ (uint32_t)T0) & (1UL << 31)) {
xer_ov = 1;
xer_so = 1;
} else {
xer_ov = 0;
}
} else {
T0 = 0;
xer_ov = 0;
}
}
void do_POWER_maskg (void)
{
uint32_t ret;
if ((uint32_t)T0 == (uint32_t)(T1 + 1)) {
ret = -1;
} else {
ret = (((uint32_t)(-1)) >> ((uint32_t)T0)) ^
(((uint32_t)(-1) >> ((uint32_t)T1)) >> 1);
if ((uint32_t)T0 > (uint32_t)T1)
ret = ~ret;
}
T0 = ret;
}
void do_POWER_mulo (void)
{
uint64_t tmp;
tmp = (uint64_t)T0 * (uint64_t)T1;
env->spr[SPR_MQ] = tmp >> 32;
T0 = tmp;
if (tmp >> 32 != ((uint64_t)T0 >> 16) * ((uint64_t)T1 >> 16)) {
xer_ov = 1;
xer_so = 1;
} else {
xer_ov = 0;
}
}
#if !defined (CONFIG_USER_ONLY)
void do_POWER_rac (void)
{
#if 0
mmu_ctx_t ctx;
/* We don't have to generate many instances of this instruction,
* as rac is supervisor only.
*/
if (get_physical_address(env, &ctx, T0, 0, ACCESS_INT, 1) == 0)
T0 = ctx.raddr;
#endif
}
void do_POWER_rfsvc (void)
{
env->nip = env->lr & ~0x00000003UL;
T0 = env->ctr & 0x0000FFFFUL;
do_store_msr(env, T0);
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
/* PowerPC 601 BAT management helper */
void do_store_601_batu (int nr)
{
do_store_ibatu(env, nr, (uint32_t)T0);
env->DBAT[0][nr] = env->IBAT[0][nr];
env->DBAT[1][nr] = env->IBAT[1][nr];
}
#endif
/*****************************************************************************/
/* 602 specific instructions */
/* mfrom is the most crazy instruction ever seen, imho ! */
/* Real implementation uses a ROM table. Do the same */
#define USE_MFROM_ROM_TABLE
void do_op_602_mfrom (void)
{
if (likely(T0 < 602)) {
#if defined(USE_MFROM_ROM_TABLE)
#include "mfrom_table.c"
T0 = mfrom_ROM_table[T0];
#else
double d;
/* Extremly decomposed:
* -T0 / 256
* T0 = 256 * log10(10 + 1.0) + 0.5
*/
d = T0;
d = float64_div(d, 256, &env->fp_status);
d = float64_chs(d);
d = exp10(d); // XXX: use float emulation function
d = float64_add(d, 1.0, &env->fp_status);
d = log10(d); // XXX: use float emulation function
d = float64_mul(d, 256, &env->fp_status);
d = float64_add(d, 0.5, &env->fp_status);
T0 = float64_round_to_int(d, &env->fp_status);
#endif
} else {
T0 = 0;
}
}
/*****************************************************************************/
/* Embedded PowerPC specific helpers */
void do_405_check_ov (void)
{
if (likely((((uint32_t)T1 ^ (uint32_t)T2) >> 31) ||
!(((uint32_t)T0 ^ (uint32_t)T2) >> 31))) {
xer_ov = 0;
} else {
xer_ov = 1;
xer_so = 1;
}
}
void do_405_check_sat (void)
{
if (!likely((((uint32_t)T1 ^ (uint32_t)T2) >> 31) ||
!(((uint32_t)T0 ^ (uint32_t)T2) >> 31))) {
/* Saturate result */
if (T2 >> 31) {
T0 = INT32_MIN;
} else {
T0 = INT32_MAX;
}
}
}
/* XXX: to be improved to check access rights when in user-mode */
void do_load_dcr (void)
{
target_ulong val;
if (unlikely(env->dcr_env == NULL)) {
if (loglevel != 0) {
fprintf(logfile, "No DCR environment\n");
}
do_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
} else if (unlikely(ppc_dcr_read(env->dcr_env, T0, &val) != 0)) {
if (loglevel != 0) {
fprintf(logfile, "DCR read error %d %03x\n", (int)T0, (int)T0);
}
do_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
} else {
T0 = val;
}
}
void do_store_dcr (void)
{
if (unlikely(env->dcr_env == NULL)) {
if (loglevel != 0) {
fprintf(logfile, "No DCR environment\n");
}
do_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL);
} else if (unlikely(ppc_dcr_write(env->dcr_env, T0, T1) != 0)) {
if (loglevel != 0) {
fprintf(logfile, "DCR write error %d %03x\n", (int)T0, (int)T0);
}
do_raise_exception_err(POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
}
}
#if !defined(CONFIG_USER_ONLY)
void do_40x_rfci (void)
{
env->nip = env->spr[SPR_40x_SRR2];
do_store_msr(env, env->spr[SPR_40x_SRR3] & ~0xFFFF0000);
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request = CPU_INTERRUPT_EXITTB;
}
void do_rfci (void)
{
#if defined(TARGET_PPC64)
if (env->spr[SPR_BOOKE_CSRR1] & (1 << MSR_CM)) {
env->nip = (uint64_t)env->spr[SPR_BOOKE_CSRR0];
} else
#endif
{
env->nip = (uint32_t)env->spr[SPR_BOOKE_CSRR0];
}
do_store_msr(env, (uint32_t)env->spr[SPR_BOOKE_CSRR1] & ~0x3FFF0000);
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request = CPU_INTERRUPT_EXITTB;
}
void do_rfdi (void)
{
#if defined(TARGET_PPC64)
if (env->spr[SPR_BOOKE_DSRR1] & (1 << MSR_CM)) {
env->nip = (uint64_t)env->spr[SPR_BOOKE_DSRR0];
} else
#endif
{
env->nip = (uint32_t)env->spr[SPR_BOOKE_DSRR0];
}
do_store_msr(env, (uint32_t)env->spr[SPR_BOOKE_DSRR1] & ~0x3FFF0000);
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request = CPU_INTERRUPT_EXITTB;
}
void do_rfmci (void)
{
#if defined(TARGET_PPC64)
if (env->spr[SPR_BOOKE_MCSRR1] & (1 << MSR_CM)) {
env->nip = (uint64_t)env->spr[SPR_BOOKE_MCSRR0];
} else
#endif
{
env->nip = (uint32_t)env->spr[SPR_BOOKE_MCSRR0];
}
do_store_msr(env, (uint32_t)env->spr[SPR_BOOKE_MCSRR1] & ~0x3FFF0000);
#if defined (DEBUG_OP)
cpu_dump_rfi(env->nip, do_load_msr(env));
#endif
env->interrupt_request = CPU_INTERRUPT_EXITTB;
}
void do_load_403_pb (int num)
{
T0 = env->pb[num];
}
void do_store_403_pb (int num)
{
if (likely(env->pb[num] != T0)) {
env->pb[num] = T0;
/* Should be optimized */
tlb_flush(env, 1);
}
}
#endif
/* 440 specific */
void do_440_dlmzb (void)
{
target_ulong mask;
int i;
i = 1;
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) {
if ((T0 & mask) == 0)
goto done;
i++;
}
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) {
if ((T1 & mask) == 0)
break;
i++;
}
done:
T0 = i;
}
#if defined(TARGET_PPCEMB)
/* SPE extension helpers */
/* Use a table to make this quicker */
static uint8_t hbrev[16] = {
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE,
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF,
};
static inline uint8_t byte_reverse (uint8_t val)
{
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4);
}
static inline uint32_t word_reverse (uint32_t val)
{
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24);
}
#define MASKBITS 16 // Random value - to be fixed
void do_brinc (void)
{
uint32_t a, b, d, mask;
mask = (uint32_t)(-1UL) >> MASKBITS;
b = T1_64 & mask;
a = T0_64 & mask;
d = word_reverse(1 + word_reverse(a | ~mask));
T0_64 = (T0_64 & ~mask) | (d & mask);
}
#define DO_SPE_OP2(name) \
void do_ev##name (void) \
{ \
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32, T1_64 >> 32) << 32) | \
(uint64_t)_do_e##name(T0_64, T1_64); \
}
#define DO_SPE_OP1(name) \
void do_ev##name (void) \
{ \
T0_64 = ((uint64_t)_do_e##name(T0_64 >> 32) << 32) | \
(uint64_t)_do_e##name(T0_64); \
}
/* Fixed-point vector arithmetic */
static inline uint32_t _do_eabs (uint32_t val)
{
if (val != 0x80000000)
val &= ~0x80000000;
return val;
}
static inline uint32_t _do_eaddw (uint32_t op1, uint32_t op2)
{
return op1 + op2;
}
static inline int _do_ecntlsw (uint32_t val)
{
if (val & 0x80000000)
return _do_cntlzw(~val);
else
return _do_cntlzw(val);
}
static inline int _do_ecntlzw (uint32_t val)
{
return _do_cntlzw(val);
}
static inline uint32_t _do_eneg (uint32_t val)
{
if (val != 0x80000000)
val ^= 0x80000000;
return val;
}
static inline uint32_t _do_erlw (uint32_t op1, uint32_t op2)
{
return rotl32(op1, op2);
}
static inline uint32_t _do_erndw (uint32_t val)
{
return (val + 0x000080000000) & 0xFFFF0000;
}
static inline uint32_t _do_eslw (uint32_t op1, uint32_t op2)
{
/* No error here: 6 bits are used */
return op1 << (op2 & 0x3F);
}
static inline int32_t _do_esrws (int32_t op1, uint32_t op2)
{
/* No error here: 6 bits are used */
return op1 >> (op2 & 0x3F);
}
static inline uint32_t _do_esrwu (uint32_t op1, uint32_t op2)
{
/* No error here: 6 bits are used */
return op1 >> (op2 & 0x3F);
}
static inline uint32_t _do_esubfw (uint32_t op1, uint32_t op2)
{
return op2 - op1;
}
/* evabs */
DO_SPE_OP1(abs);
/* evaddw */
DO_SPE_OP2(addw);
/* evcntlsw */
DO_SPE_OP1(cntlsw);
/* evcntlzw */
DO_SPE_OP1(cntlzw);
/* evneg */
DO_SPE_OP1(neg);
/* evrlw */
DO_SPE_OP2(rlw);
/* evrnd */
DO_SPE_OP1(rndw);
/* evslw */
DO_SPE_OP2(slw);
/* evsrws */
DO_SPE_OP2(srws);
/* evsrwu */
DO_SPE_OP2(srwu);
/* evsubfw */
DO_SPE_OP2(subfw);
/* evsel is a little bit more complicated... */
static inline uint32_t _do_esel (uint32_t op1, uint32_t op2, int n)
{
if (n)
return op1;
else
return op2;
}
void do_evsel (void)
{
T0_64 = ((uint64_t)_do_esel(T0_64 >> 32, T1_64 >> 32, T0 >> 3) << 32) |
(uint64_t)_do_esel(T0_64, T1_64, (T0 >> 2) & 1);
}
/* Fixed-point vector comparisons */
#define DO_SPE_CMP(name) \
void do_ev##name (void) \
{ \
T0 = _do_evcmp_merge((uint64_t)_do_e##name(T0_64 >> 32, \
T1_64 >> 32) << 32, \
_do_e##name(T0_64, T1_64)); \
}
static inline uint32_t _do_evcmp_merge (int t0, int t1)
{
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1);
}
static inline int _do_ecmpeq (uint32_t op1, uint32_t op2)
{
return op1 == op2 ? 1 : 0;
}
static inline int _do_ecmpgts (int32_t op1, int32_t op2)
{
return op1 > op2 ? 1 : 0;
}
static inline int _do_ecmpgtu (uint32_t op1, uint32_t op2)
{
return op1 > op2 ? 1 : 0;
}
static inline int _do_ecmplts (int32_t op1, int32_t op2)
{
return op1 < op2 ? 1 : 0;
}
static inline int _do_ecmpltu (uint32_t op1, uint32_t op2)
{
return op1 < op2 ? 1 : 0;
}
/* evcmpeq */
DO_SPE_CMP(cmpeq);
/* evcmpgts */
DO_SPE_CMP(cmpgts);
/* evcmpgtu */
DO_SPE_CMP(cmpgtu);
/* evcmplts */
DO_SPE_CMP(cmplts);
/* evcmpltu */
DO_SPE_CMP(cmpltu);
/* Single precision floating-point conversions from/to integer */
static inline uint32_t _do_efscfsi (int32_t val)
{
union {
uint32_t u;
float32 f;
} u;
u.f = int32_to_float32(val, &env->spe_status);
return u.u;
}
static inline uint32_t _do_efscfui (uint32_t val)
{
union {
uint32_t u;
float32 f;
} u;
u.f = uint32_to_float32(val, &env->spe_status);
return u.u;
}
static inline int32_t _do_efsctsi (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float32_to_int32(u.f, &env->spe_status);
}
static inline uint32_t _do_efsctui (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float32_to_uint32(u.f, &env->spe_status);
}
static inline int32_t _do_efsctsiz (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
}
static inline uint32_t _do_efsctuiz (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
}
void do_efscfsi (void)
{
T0_64 = _do_efscfsi(T0_64);
}
void do_efscfui (void)
{
T0_64 = _do_efscfui(T0_64);
}
void do_efsctsi (void)
{
T0_64 = _do_efsctsi(T0_64);
}
void do_efsctui (void)
{
T0_64 = _do_efsctui(T0_64);
}
void do_efsctsiz (void)
{
T0_64 = _do_efsctsiz(T0_64);
}
void do_efsctuiz (void)
{
T0_64 = _do_efsctuiz(T0_64);
}
/* Single precision floating-point conversion to/from fractional */
static inline uint32_t _do_efscfsf (uint32_t val)
{
union {
uint32_t u;
float32 f;
} u;
float32 tmp;
u.f = int32_to_float32(val, &env->spe_status);
tmp = int64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_div(u.f, tmp, &env->spe_status);
return u.u;
}
static inline uint32_t _do_efscfuf (uint32_t val)
{
union {
uint32_t u;
float32 f;
} u;
float32 tmp;
u.f = uint32_to_float32(val, &env->spe_status);
tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_div(u.f, tmp, &env->spe_status);
return u.u;
}
static inline int32_t _do_efsctsf (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
float32 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_mul(u.f, tmp, &env->spe_status);
return float32_to_int32(u.f, &env->spe_status);
}
static inline uint32_t _do_efsctuf (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
float32 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_mul(u.f, tmp, &env->spe_status);
return float32_to_uint32(u.f, &env->spe_status);
}
static inline int32_t _do_efsctsfz (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
float32 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_mul(u.f, tmp, &env->spe_status);
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
}
static inline uint32_t _do_efsctufz (uint32_t val)
{
union {
int32_t u;
float32 f;
} u;
float32 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float32(1ULL << 32, &env->spe_status);
u.f = float32_mul(u.f, tmp, &env->spe_status);
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
}
void do_efscfsf (void)
{
T0_64 = _do_efscfsf(T0_64);
}
void do_efscfuf (void)
{
T0_64 = _do_efscfuf(T0_64);
}
void do_efsctsf (void)
{
T0_64 = _do_efsctsf(T0_64);
}
void do_efsctuf (void)
{
T0_64 = _do_efsctuf(T0_64);
}
void do_efsctsfz (void)
{
T0_64 = _do_efsctsfz(T0_64);
}
void do_efsctufz (void)
{
T0_64 = _do_efsctufz(T0_64);
}
/* Double precision floating point helpers */
static inline int _do_efdcmplt (uint64_t op1, uint64_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efdtstlt(op1, op2);
}
static inline int _do_efdcmpgt (uint64_t op1, uint64_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efdtstgt(op1, op2);
}
static inline int _do_efdcmpeq (uint64_t op1, uint64_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efdtsteq(op1, op2);
}
void do_efdcmplt (void)
{
T0 = _do_efdcmplt(T0_64, T1_64);
}
void do_efdcmpgt (void)
{
T0 = _do_efdcmpgt(T0_64, T1_64);
}
void do_efdcmpeq (void)
{
T0 = _do_efdcmpeq(T0_64, T1_64);
}
/* Double precision floating-point conversion to/from integer */
static inline uint64_t _do_efdcfsi (int64_t val)
{
union {
uint64_t u;
float64 f;
} u;
u.f = int64_to_float64(val, &env->spe_status);
return u.u;
}
static inline uint64_t _do_efdcfui (uint64_t val)
{
union {
uint64_t u;
float64 f;
} u;
u.f = uint64_to_float64(val, &env->spe_status);
return u.u;
}
static inline int64_t _do_efdctsi (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float64_to_int64(u.f, &env->spe_status);
}
static inline uint64_t _do_efdctui (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float64_to_uint64(u.f, &env->spe_status);
}
static inline int64_t _do_efdctsiz (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float64_to_int64_round_to_zero(u.f, &env->spe_status);
}
static inline uint64_t _do_efdctuiz (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
return float64_to_uint64_round_to_zero(u.f, &env->spe_status);
}
void do_efdcfsi (void)
{
T0_64 = _do_efdcfsi(T0_64);
}
void do_efdcfui (void)
{
T0_64 = _do_efdcfui(T0_64);
}
void do_efdctsi (void)
{
T0_64 = _do_efdctsi(T0_64);
}
void do_efdctui (void)
{
T0_64 = _do_efdctui(T0_64);
}
void do_efdctsiz (void)
{
T0_64 = _do_efdctsiz(T0_64);
}
void do_efdctuiz (void)
{
T0_64 = _do_efdctuiz(T0_64);
}
/* Double precision floating-point conversion to/from fractional */
static inline uint64_t _do_efdcfsf (int64_t val)
{
union {
uint64_t u;
float64 f;
} u;
float64 tmp;
u.f = int32_to_float64(val, &env->spe_status);
tmp = int64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_div(u.f, tmp, &env->spe_status);
return u.u;
}
static inline uint64_t _do_efdcfuf (uint64_t val)
{
union {
uint64_t u;
float64 f;
} u;
float64 tmp;
u.f = uint32_to_float64(val, &env->spe_status);
tmp = int64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_div(u.f, tmp, &env->spe_status);
return u.u;
}
static inline int64_t _do_efdctsf (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
float64 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_mul(u.f, tmp, &env->spe_status);
return float64_to_int32(u.f, &env->spe_status);
}
static inline uint64_t _do_efdctuf (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
float64 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_mul(u.f, tmp, &env->spe_status);
return float64_to_uint32(u.f, &env->spe_status);
}
static inline int64_t _do_efdctsfz (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
float64 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_mul(u.f, tmp, &env->spe_status);
return float64_to_int32_round_to_zero(u.f, &env->spe_status);
}
static inline uint64_t _do_efdctufz (uint64_t val)
{
union {
int64_t u;
float64 f;
} u;
float64 tmp;
u.u = val;
/* NaN are not treated the same way IEEE 754 does */
if (unlikely(isnan(u.f)))
return 0;
tmp = uint64_to_float64(1ULL << 32, &env->spe_status);
u.f = float64_mul(u.f, tmp, &env->spe_status);
return float64_to_uint32_round_to_zero(u.f, &env->spe_status);
}
void do_efdcfsf (void)
{
T0_64 = _do_efdcfsf(T0_64);
}
void do_efdcfuf (void)
{
T0_64 = _do_efdcfuf(T0_64);
}
void do_efdctsf (void)
{
T0_64 = _do_efdctsf(T0_64);
}
void do_efdctuf (void)
{
T0_64 = _do_efdctuf(T0_64);
}
void do_efdctsfz (void)
{
T0_64 = _do_efdctsfz(T0_64);
}
void do_efdctufz (void)
{
T0_64 = _do_efdctufz(T0_64);
}
/* Floating point conversion between single and double precision */
static inline uint32_t _do_efscfd (uint64_t val)
{
union {
uint64_t u;
float64 f;
} u1;
union {
uint32_t u;
float32 f;
} u2;
u1.u = val;
u2.f = float64_to_float32(u1.f, &env->spe_status);
return u2.u;
}
static inline uint64_t _do_efdcfs (uint32_t val)
{
union {
uint64_t u;
float64 f;
} u2;
union {
uint32_t u;
float32 f;
} u1;
u1.u = val;
u2.f = float32_to_float64(u1.f, &env->spe_status);
return u2.u;
}
void do_efscfd (void)
{
T0_64 = _do_efscfd(T0_64);
}
void do_efdcfs (void)
{
T0_64 = _do_efdcfs(T0_64);
}
/* Single precision fixed-point vector arithmetic */
/* evfsabs */
DO_SPE_OP1(fsabs);
/* evfsnabs */
DO_SPE_OP1(fsnabs);
/* evfsneg */
DO_SPE_OP1(fsneg);
/* evfsadd */
DO_SPE_OP2(fsadd);
/* evfssub */
DO_SPE_OP2(fssub);
/* evfsmul */
DO_SPE_OP2(fsmul);
/* evfsdiv */
DO_SPE_OP2(fsdiv);
/* Single-precision floating-point comparisons */
static inline int _do_efscmplt (uint32_t op1, uint32_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efststlt(op1, op2);
}
static inline int _do_efscmpgt (uint32_t op1, uint32_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efststgt(op1, op2);
}
static inline int _do_efscmpeq (uint32_t op1, uint32_t op2)
{
/* XXX: TODO: test special values (NaN, infinites, ...) */
return _do_efststeq(op1, op2);
}
void do_efscmplt (void)
{
T0 = _do_efscmplt(T0_64, T1_64);
}
void do_efscmpgt (void)
{
T0 = _do_efscmpgt(T0_64, T1_64);
}
void do_efscmpeq (void)
{
T0 = _do_efscmpeq(T0_64, T1_64);
}
/* Single-precision floating-point vector comparisons */
/* evfscmplt */
DO_SPE_CMP(fscmplt);
/* evfscmpgt */
DO_SPE_CMP(fscmpgt);
/* evfscmpeq */
DO_SPE_CMP(fscmpeq);
/* evfststlt */
DO_SPE_CMP(fststlt);
/* evfststgt */
DO_SPE_CMP(fststgt);
/* evfststeq */
DO_SPE_CMP(fststeq);
/* Single-precision floating-point vector conversions */
/* evfscfsi */
DO_SPE_OP1(fscfsi);
/* evfscfui */
DO_SPE_OP1(fscfui);
/* evfscfuf */
DO_SPE_OP1(fscfuf);
/* evfscfsf */
DO_SPE_OP1(fscfsf);
/* evfsctsi */
DO_SPE_OP1(fsctsi);
/* evfsctui */
DO_SPE_OP1(fsctui);
/* evfsctsiz */
DO_SPE_OP1(fsctsiz);
/* evfsctuiz */
DO_SPE_OP1(fsctuiz);
/* evfsctsf */
DO_SPE_OP1(fsctsf);
/* evfsctuf */
DO_SPE_OP1(fsctuf);
#endif /* defined(TARGET_PPCEMB) */
/*****************************************************************************/
/* Softmmu support */
#if !defined (CONFIG_USER_ONLY)
#define MMUSUFFIX _mmu
#define GETPC() (__builtin_return_address(0))
#define SHIFT 0
#include "softmmu_template.h"
#define SHIFT 1
#include "softmmu_template.h"
#define SHIFT 2
#include "softmmu_template.h"
#define SHIFT 3
#include "softmmu_template.h"
/* try to fill the TLB and return an exception if error. If retaddr is
NULL, it means that the function was called in C code (i.e. not
from generated code or from helper.c) */
/* XXX: fix it to restore all registers */
void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr)
{
TranslationBlock *tb;
CPUState *saved_env;
target_phys_addr_t pc;
int ret;
/* XXX: hack to restore env in all cases, even if not called from
generated code */
saved_env = env;
env = cpu_single_env;
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, is_user, 1);
if (unlikely(ret != 0)) {
if (likely(retaddr)) {
/* now we have a real cpu fault */
pc = (target_phys_addr_t)(unsigned long)retaddr;
tb = tb_find_pc(pc);
if (likely(tb)) {
/* the PC is inside the translated code. It means that we have
a virtual CPU fault */
cpu_restore_state(tb, env, pc, NULL);
}
}
do_raise_exception_err(env->exception_index, env->error_code);
}
env = saved_env;
}
/* Software driven TLBs management */
/* PowerPC 602/603 software TLB load instructions helpers */
void do_load_6xx_tlb (int is_code)
{
target_ulong RPN, CMP, EPN;
int way;
RPN = env->spr[SPR_RPA];
if (is_code) {
CMP = env->spr[SPR_ICMP];
EPN = env->spr[SPR_IMISS];
} else {
CMP = env->spr[SPR_DCMP];
EPN = env->spr[SPR_DMISS];
}
way = (env->spr[SPR_SRR1] >> 17) & 1;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: EPN %08lx %08lx PTE0 %08lx PTE1 %08lx way %d\n",
__func__, (unsigned long)T0, (unsigned long)EPN,
(unsigned long)CMP, (unsigned long)RPN, way);
}
#endif
/* Store this TLB */
ppc6xx_tlb_store(env, (uint32_t)(T0 & TARGET_PAGE_MASK),
way, is_code, CMP, RPN);
}
void do_load_74xx_tlb (int is_code)
{
target_ulong RPN, CMP, EPN;
int way;
RPN = env->spr[SPR_PTELO];
CMP = env->spr[SPR_PTEHI];
EPN = env->spr[SPR_TLBMISS] & ~0x3;
way = env->spr[SPR_TLBMISS] & 0x3;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: EPN %08lx %08lx PTE0 %08lx PTE1 %08lx way %d\n",
__func__, (unsigned long)T0, (unsigned long)EPN,
(unsigned long)CMP, (unsigned long)RPN, way);
}
#endif
/* Store this TLB */
ppc6xx_tlb_store(env, (uint32_t)(T0 & TARGET_PAGE_MASK),
way, is_code, CMP, RPN);
}
static target_ulong booke_tlb_to_page_size (int size)
{
return 1024 << (2 * size);
}
static int booke_page_size_to_tlb (target_ulong page_size)
{
int size;
switch (page_size) {
case 0x00000400UL:
size = 0x0;
break;
case 0x00001000UL:
size = 0x1;
break;
case 0x00004000UL:
size = 0x2;
break;
case 0x00010000UL:
size = 0x3;
break;
case 0x00040000UL:
size = 0x4;
break;
case 0x00100000UL:
size = 0x5;
break;
case 0x00400000UL:
size = 0x6;
break;
case 0x01000000UL:
size = 0x7;
break;
case 0x04000000UL:
size = 0x8;
break;
case 0x10000000UL:
size = 0x9;
break;
case 0x40000000UL:
size = 0xA;
break;
#if defined (TARGET_PPC64)
case 0x000100000000ULL:
size = 0xB;
break;
case 0x000400000000ULL:
size = 0xC;
break;
case 0x001000000000ULL:
size = 0xD;
break;
case 0x004000000000ULL:
size = 0xE;
break;
case 0x010000000000ULL:
size = 0xF;
break;
#endif
default:
size = -1;
break;
}
return size;
}
/* Helpers for 4xx TLB management */
void do_4xx_tlbre_lo (void)
{
ppcemb_tlb_t *tlb;
int size;
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
T0 = tlb->EPN;
if (tlb->prot & PAGE_VALID)
T0 |= 0x400;
size = booke_page_size_to_tlb(tlb->size);
if (size < 0 || size > 0x7)
size = 1;
T0 |= size << 7;
env->spr[SPR_40x_PID] = tlb->PID;
}
void do_4xx_tlbre_hi (void)
{
ppcemb_tlb_t *tlb;
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
T0 = tlb->RPN;
if (tlb->prot & PAGE_EXEC)
T0 |= 0x200;
if (tlb->prot & PAGE_WRITE)
T0 |= 0x100;
}
void do_4xx_tlbwe_hi (void)
{
ppcemb_tlb_t *tlb;
target_ulong page, end;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s T0 " REGX " T1 " REGX "\n", __func__, T0, T1);
}
#endif
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
/* Invalidate previous TLB (if it's valid) */
if (tlb->prot & PAGE_VALID) {
end = tlb->EPN + tlb->size;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
" end " ADDRX "\n", __func__, (int)T0, tlb->EPN, end);
}
#endif
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
tlb_flush_page(env, page);
}
tlb->size = booke_tlb_to_page_size((T1 >> 7) & 0x7);
/* We cannot handle TLB size < TARGET_PAGE_SIZE.
* If this ever occurs, one should use the ppcemb target instead
* of the ppc or ppc64 one
*/
if ((T1 & 0x40) && tlb->size < TARGET_PAGE_SIZE) {
cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u "
"are not supported (%d)\n",
tlb->size, TARGET_PAGE_SIZE, (int)((T1 >> 7) & 0x7));
}
tlb->EPN = T1 & ~(tlb->size - 1);
if (T1 & 0x40)
tlb->prot |= PAGE_VALID;
else
tlb->prot &= ~PAGE_VALID;
if (T1 & 0x20) {
/* XXX: TO BE FIXED */
cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
}
tlb->PID = env->spr[SPR_40x_PID]; /* PID */
tlb->attr = T1 & 0xFF;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__,
(int)T0, tlb->RPN, tlb->EPN, tlb->size,
tlb->prot & PAGE_READ ? 'r' : '-',
tlb->prot & PAGE_WRITE ? 'w' : '-',
tlb->prot & PAGE_EXEC ? 'x' : '-',
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
}
#endif
/* Invalidate new TLB (if valid) */
if (tlb->prot & PAGE_VALID) {
end = tlb->EPN + tlb->size;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
" end " ADDRX "\n", __func__, (int)T0, tlb->EPN, end);
}
#endif
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
tlb_flush_page(env, page);
}
}
void do_4xx_tlbwe_lo (void)
{
ppcemb_tlb_t *tlb;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s T0 " REGX " T1 " REGX "\n", __func__, T0, T1);
}
#endif
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
tlb->RPN = T1 & 0xFFFFFC00;
tlb->prot = PAGE_READ;
if (T1 & 0x200)
tlb->prot |= PAGE_EXEC;
if (T1 & 0x100)
tlb->prot |= PAGE_WRITE;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__,
(int)T0, tlb->RPN, tlb->EPN, tlb->size,
tlb->prot & PAGE_READ ? 'r' : '-',
tlb->prot & PAGE_WRITE ? 'w' : '-',
tlb->prot & PAGE_EXEC ? 'x' : '-',
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID);
}
#endif
}
/* PowerPC 440 TLB management */
void do_440_tlbwe (int word)
{
ppcemb_tlb_t *tlb;
target_ulong EPN, RPN, size;
int do_flush_tlbs;
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
fprintf(logfile, "%s word %d T0 " REGX " T1 " REGX "\n",
__func__, word, T0, T1);
}
#endif
do_flush_tlbs = 0;
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
switch (word) {
default:
/* Just here to please gcc */
case 0:
EPN = T1 & 0xFFFFFC00;
if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
do_flush_tlbs = 1;
tlb->EPN = EPN;
size = booke_tlb_to_page_size((T1 >> 4) & 0xF);
if ((tlb->prot & PAGE_VALID) && tlb->size < size)
do_flush_tlbs = 1;
tlb->size = size;
tlb->attr &= ~0x1;
tlb->attr |= (T1 >> 8) & 1;
if (T1 & 0x200) {
tlb->prot |= PAGE_VALID;
} else {
if (tlb->prot & PAGE_VALID) {
tlb->prot &= ~PAGE_VALID;
do_flush_tlbs = 1;
}
}
tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
if (do_flush_tlbs)
tlb_flush(env, 1);
break;
case 1:
RPN = T1 & 0xFFFFFC0F;
if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
tlb_flush(env, 1);
tlb->RPN = RPN;
break;
case 2:
tlb->attr = (tlb->attr & 0x1) | (T1 & 0x0000FF00);
tlb->prot = tlb->prot & PAGE_VALID;
if (T1 & 0x1)
tlb->prot |= PAGE_READ << 4;
if (T1 & 0x2)
tlb->prot |= PAGE_WRITE << 4;
if (T1 & 0x4)
tlb->prot |= PAGE_EXEC << 4;
if (T1 & 0x8)
tlb->prot |= PAGE_READ;
if (T1 & 0x10)
tlb->prot |= PAGE_WRITE;
if (T1 & 0x20)
tlb->prot |= PAGE_EXEC;
break;
}
}
void do_440_tlbre (int word)
{
ppcemb_tlb_t *tlb;
int size;
T0 &= 0x3F;
tlb = &env->tlb[T0].tlbe;
switch (word) {
default:
/* Just here to please gcc */
case 0:
T0 = tlb->EPN;
size = booke_page_size_to_tlb(tlb->size);
if (size < 0 || size > 0xF)
size = 1;
T0 |= size << 4;
if (tlb->attr & 0x1)
T0 |= 0x100;
if (tlb->prot & PAGE_VALID)
T0 |= 0x200;
env->spr[SPR_440_MMUCR] &= ~0x000000FF;
env->spr[SPR_440_MMUCR] |= tlb->PID;
break;
case 1:
T0 = tlb->RPN;
break;
case 2:
T0 = tlb->attr & ~0x1;
if (tlb->prot & (PAGE_READ << 4))
T0 |= 0x1;
if (tlb->prot & (PAGE_WRITE << 4))
T0 |= 0x2;
if (tlb->prot & (PAGE_EXEC << 4))
T0 |= 0x4;
if (tlb->prot & PAGE_READ)
T0 |= 0x8;
if (tlb->prot & PAGE_WRITE)
T0 |= 0x10;
if (tlb->prot & PAGE_EXEC)
T0 |= 0x20;
break;
}
}
#endif /* !CONFIG_USER_ONLY */
Reference in a new issue View git blame Copy permalink