The attached patch updates the FSF address in the GPL/LGPL boilerplate in most GPL/LGPLed files, and also in COPYING.LIB. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
607 lines
11 KiB
C
607 lines
11 KiB
C
/*
|
|
* SH4 emulation
|
|
*
|
|
* Copyright (c) 2005 Samuel Tardieu
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
|
|
*/
|
|
#include <assert.h>
|
|
#include "exec.h"
|
|
#include "helper.h"
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
|
|
#define MMUSUFFIX _mmu
|
|
|
|
#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"
|
|
|
|
void tlb_fill(target_ulong addr, int is_write, int mmu_idx, void *retaddr)
|
|
{
|
|
TranslationBlock *tb;
|
|
CPUState *saved_env;
|
|
unsigned long 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_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
|
if (ret) {
|
|
if (retaddr) {
|
|
/* now we have a real cpu fault */
|
|
pc = (unsigned long) retaddr;
|
|
tb = tb_find_pc(pc);
|
|
if (tb) {
|
|
/* the PC is inside the translated code. It means that we have
|
|
a virtual CPU fault */
|
|
cpu_restore_state(tb, env, pc, NULL);
|
|
}
|
|
}
|
|
cpu_loop_exit();
|
|
}
|
|
env = saved_env;
|
|
}
|
|
|
|
#endif
|
|
|
|
void helper_ldtlb(void)
|
|
{
|
|
#ifdef CONFIG_USER_ONLY
|
|
/* XXXXX */
|
|
assert(0);
|
|
#else
|
|
cpu_load_tlb(env);
|
|
#endif
|
|
}
|
|
|
|
void helper_raise_illegal_instruction(void)
|
|
{
|
|
env->exception_index = 0x180;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_raise_slot_illegal_instruction(void)
|
|
{
|
|
env->exception_index = 0x1a0;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_raise_fpu_disable(void)
|
|
{
|
|
env->exception_index = 0x800;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_raise_slot_fpu_disable(void)
|
|
{
|
|
env->exception_index = 0x820;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_debug(void)
|
|
{
|
|
env->exception_index = EXCP_DEBUG;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_sleep(uint32_t next_pc)
|
|
{
|
|
env->halted = 1;
|
|
env->exception_index = EXCP_HLT;
|
|
env->pc = next_pc;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
void helper_trapa(uint32_t tra)
|
|
{
|
|
env->tra = tra << 2;
|
|
env->exception_index = 0x160;
|
|
cpu_loop_exit();
|
|
}
|
|
|
|
uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
uint32_t tmp0, tmp1;
|
|
|
|
tmp1 = arg0 + arg1;
|
|
tmp0 = arg1;
|
|
arg1 = tmp1 + (env->sr & 1);
|
|
if (tmp0 > tmp1)
|
|
env->sr |= SR_T;
|
|
else
|
|
env->sr &= ~SR_T;
|
|
if (tmp1 > arg1)
|
|
env->sr |= SR_T;
|
|
return arg1;
|
|
}
|
|
|
|
uint32_t helper_addv(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
uint32_t dest, src, ans;
|
|
|
|
if ((int32_t) arg1 >= 0)
|
|
dest = 0;
|
|
else
|
|
dest = 1;
|
|
if ((int32_t) arg0 >= 0)
|
|
src = 0;
|
|
else
|
|
src = 1;
|
|
src += dest;
|
|
arg1 += arg0;
|
|
if ((int32_t) arg1 >= 0)
|
|
ans = 0;
|
|
else
|
|
ans = 1;
|
|
ans += dest;
|
|
if (src == 0 || src == 2) {
|
|
if (ans == 1)
|
|
env->sr |= SR_T;
|
|
else
|
|
env->sr &= ~SR_T;
|
|
} else
|
|
env->sr &= ~SR_T;
|
|
return arg1;
|
|
}
|
|
|
|
#define T (env->sr & SR_T)
|
|
#define Q (env->sr & SR_Q ? 1 : 0)
|
|
#define M (env->sr & SR_M ? 1 : 0)
|
|
#define SETT env->sr |= SR_T
|
|
#define CLRT env->sr &= ~SR_T
|
|
#define SETQ env->sr |= SR_Q
|
|
#define CLRQ env->sr &= ~SR_Q
|
|
#define SETM env->sr |= SR_M
|
|
#define CLRM env->sr &= ~SR_M
|
|
|
|
uint32_t helper_div1(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
uint32_t tmp0, tmp2;
|
|
uint8_t old_q, tmp1 = 0xff;
|
|
|
|
//printf("div1 arg0=0x%08x arg1=0x%08x M=%d Q=%d T=%d\n", arg0, arg1, M, Q, T);
|
|
old_q = Q;
|
|
if ((0x80000000 & arg1) != 0)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
tmp2 = arg0;
|
|
arg1 <<= 1;
|
|
arg1 |= T;
|
|
switch (old_q) {
|
|
case 0:
|
|
switch (M) {
|
|
case 0:
|
|
tmp0 = arg1;
|
|
arg1 -= tmp2;
|
|
tmp1 = arg1 > tmp0;
|
|
switch (Q) {
|
|
case 0:
|
|
if (tmp1)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
case 1:
|
|
if (tmp1 == 0)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
}
|
|
break;
|
|
case 1:
|
|
tmp0 = arg1;
|
|
arg1 += tmp2;
|
|
tmp1 = arg1 < tmp0;
|
|
switch (Q) {
|
|
case 0:
|
|
if (tmp1 == 0)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
case 1:
|
|
if (tmp1)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
case 1:
|
|
switch (M) {
|
|
case 0:
|
|
tmp0 = arg1;
|
|
arg1 += tmp2;
|
|
tmp1 = arg1 < tmp0;
|
|
switch (Q) {
|
|
case 0:
|
|
if (tmp1)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
case 1:
|
|
if (tmp1 == 0)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
}
|
|
break;
|
|
case 1:
|
|
tmp0 = arg1;
|
|
arg1 -= tmp2;
|
|
tmp1 = arg1 > tmp0;
|
|
switch (Q) {
|
|
case 0:
|
|
if (tmp1 == 0)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
case 1:
|
|
if (tmp1)
|
|
SETQ;
|
|
else
|
|
CLRQ;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
if (Q == M)
|
|
SETT;
|
|
else
|
|
CLRT;
|
|
//printf("Output: arg1=0x%08x M=%d Q=%d T=%d\n", arg1, M, Q, T);
|
|
return arg1;
|
|
}
|
|
|
|
void helper_macl(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
int64_t res;
|
|
|
|
res = ((uint64_t) env->mach << 32) | env->macl;
|
|
res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
|
|
env->mach = (res >> 32) & 0xffffffff;
|
|
env->macl = res & 0xffffffff;
|
|
if (env->sr & SR_S) {
|
|
if (res < 0)
|
|
env->mach |= 0xffff0000;
|
|
else
|
|
env->mach &= 0x00007fff;
|
|
}
|
|
}
|
|
|
|
void helper_macw(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
int64_t res;
|
|
|
|
res = ((uint64_t) env->mach << 32) | env->macl;
|
|
res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
|
|
env->mach = (res >> 32) & 0xffffffff;
|
|
env->macl = res & 0xffffffff;
|
|
if (env->sr & SR_S) {
|
|
if (res < -0x80000000) {
|
|
env->mach = 1;
|
|
env->macl = 0x80000000;
|
|
} else if (res > 0x000000007fffffff) {
|
|
env->mach = 1;
|
|
env->macl = 0x7fffffff;
|
|
}
|
|
}
|
|
}
|
|
|
|
uint32_t helper_negc(uint32_t arg)
|
|
{
|
|
uint32_t temp;
|
|
|
|
temp = -arg;
|
|
arg = temp - (env->sr & SR_T);
|
|
if (0 < temp)
|
|
env->sr |= SR_T;
|
|
else
|
|
env->sr &= ~SR_T;
|
|
if (temp < arg)
|
|
env->sr |= SR_T;
|
|
return arg;
|
|
}
|
|
|
|
uint32_t helper_subc(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
uint32_t tmp0, tmp1;
|
|
|
|
tmp1 = arg1 - arg0;
|
|
tmp0 = arg1;
|
|
arg1 = tmp1 - (env->sr & SR_T);
|
|
if (tmp0 < tmp1)
|
|
env->sr |= SR_T;
|
|
else
|
|
env->sr &= ~SR_T;
|
|
if (tmp1 < arg1)
|
|
env->sr |= SR_T;
|
|
return arg1;
|
|
}
|
|
|
|
uint32_t helper_subv(uint32_t arg0, uint32_t arg1)
|
|
{
|
|
int32_t dest, src, ans;
|
|
|
|
if ((int32_t) arg1 >= 0)
|
|
dest = 0;
|
|
else
|
|
dest = 1;
|
|
if ((int32_t) arg0 >= 0)
|
|
src = 0;
|
|
else
|
|
src = 1;
|
|
src += dest;
|
|
arg1 -= arg0;
|
|
if ((int32_t) arg1 >= 0)
|
|
ans = 0;
|
|
else
|
|
ans = 1;
|
|
ans += dest;
|
|
if (src == 1) {
|
|
if (ans == 1)
|
|
env->sr |= SR_T;
|
|
else
|
|
env->sr &= ~SR_T;
|
|
} else
|
|
env->sr &= ~SR_T;
|
|
return arg1;
|
|
}
|
|
|
|
static inline void set_t(void)
|
|
{
|
|
env->sr |= SR_T;
|
|
}
|
|
|
|
static inline void clr_t(void)
|
|
{
|
|
env->sr &= ~SR_T;
|
|
}
|
|
|
|
void helper_ld_fpscr(uint32_t val)
|
|
{
|
|
env->fpscr = val & 0x003fffff;
|
|
if (val & 0x01)
|
|
set_float_rounding_mode(float_round_to_zero, &env->fp_status);
|
|
else
|
|
set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
|
|
}
|
|
|
|
uint32_t helper_fabs_FT(uint32_t t0)
|
|
{
|
|
CPU_FloatU f;
|
|
f.l = t0;
|
|
f.f = float32_abs(f.f);
|
|
return f.l;
|
|
}
|
|
|
|
uint64_t helper_fabs_DT(uint64_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
d.ll = t0;
|
|
d.d = float64_abs(d.d);
|
|
return d.ll;
|
|
}
|
|
|
|
uint32_t helper_fadd_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
f0.f = float32_add(f0.f, f1.f, &env->fp_status);
|
|
return f0.l;
|
|
}
|
|
|
|
uint64_t helper_fadd_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
d0.d = float64_add(d0.d, d1.d, &env->fp_status);
|
|
return d0.ll;
|
|
}
|
|
|
|
void helper_fcmp_eq_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
|
|
if (float32_compare(f0.f, f1.f, &env->fp_status) == 0)
|
|
set_t();
|
|
else
|
|
clr_t();
|
|
}
|
|
|
|
void helper_fcmp_eq_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
|
|
if (float64_compare(d0.d, d1.d, &env->fp_status) == 0)
|
|
set_t();
|
|
else
|
|
clr_t();
|
|
}
|
|
|
|
void helper_fcmp_gt_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
|
|
if (float32_compare(f0.f, f1.f, &env->fp_status) == 1)
|
|
set_t();
|
|
else
|
|
clr_t();
|
|
}
|
|
|
|
void helper_fcmp_gt_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
|
|
if (float64_compare(d0.d, d1.d, &env->fp_status) == 1)
|
|
set_t();
|
|
else
|
|
clr_t();
|
|
}
|
|
|
|
uint64_t helper_fcnvsd_FT_DT(uint32_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
CPU_FloatU f;
|
|
f.l = t0;
|
|
d.d = float32_to_float64(f.f, &env->fp_status);
|
|
return d.ll;
|
|
}
|
|
|
|
uint32_t helper_fcnvds_DT_FT(uint64_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
CPU_FloatU f;
|
|
d.ll = t0;
|
|
f.f = float64_to_float32(d.d, &env->fp_status);
|
|
return f.l;
|
|
}
|
|
|
|
uint32_t helper_fdiv_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
f0.f = float32_div(f0.f, f1.f, &env->fp_status);
|
|
return f0.l;
|
|
}
|
|
|
|
uint64_t helper_fdiv_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
d0.d = float64_div(d0.d, d1.d, &env->fp_status);
|
|
return d0.ll;
|
|
}
|
|
|
|
uint32_t helper_float_FT(uint32_t t0)
|
|
{
|
|
CPU_FloatU f;
|
|
f.f = int32_to_float32(t0, &env->fp_status);
|
|
return f.l;
|
|
}
|
|
|
|
uint64_t helper_float_DT(uint32_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
d.d = int32_to_float64(t0, &env->fp_status);
|
|
return d.ll;
|
|
}
|
|
|
|
uint32_t helper_fmul_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
f0.f = float32_mul(f0.f, f1.f, &env->fp_status);
|
|
return f0.l;
|
|
}
|
|
|
|
uint64_t helper_fmul_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
d0.d = float64_mul(d0.d, d1.d, &env->fp_status);
|
|
return d0.ll;
|
|
}
|
|
|
|
uint32_t helper_fneg_T(uint32_t t0)
|
|
{
|
|
CPU_FloatU f;
|
|
f.l = t0;
|
|
f.f = float32_chs(f.f);
|
|
return f.l;
|
|
}
|
|
|
|
uint32_t helper_fsqrt_FT(uint32_t t0)
|
|
{
|
|
CPU_FloatU f;
|
|
f.l = t0;
|
|
f.f = float32_sqrt(f.f, &env->fp_status);
|
|
return f.l;
|
|
}
|
|
|
|
uint64_t helper_fsqrt_DT(uint64_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
d.ll = t0;
|
|
d.d = float64_sqrt(d.d, &env->fp_status);
|
|
return d.ll;
|
|
}
|
|
|
|
uint32_t helper_fsub_FT(uint32_t t0, uint32_t t1)
|
|
{
|
|
CPU_FloatU f0, f1;
|
|
f0.l = t0;
|
|
f1.l = t1;
|
|
f0.f = float32_sub(f0.f, f1.f, &env->fp_status);
|
|
return f0.l;
|
|
}
|
|
|
|
uint64_t helper_fsub_DT(uint64_t t0, uint64_t t1)
|
|
{
|
|
CPU_DoubleU d0, d1;
|
|
d0.ll = t0;
|
|
d1.ll = t1;
|
|
d0.d = float64_sub(d0.d, d1.d, &env->fp_status);
|
|
return d0.ll;
|
|
}
|
|
|
|
uint32_t helper_ftrc_FT(uint32_t t0)
|
|
{
|
|
CPU_FloatU f;
|
|
f.l = t0;
|
|
return float32_to_int32_round_to_zero(f.f, &env->fp_status);
|
|
}
|
|
|
|
uint32_t helper_ftrc_DT(uint64_t t0)
|
|
{
|
|
CPU_DoubleU d;
|
|
d.ll = t0;
|
|
return float64_to_int32_round_to_zero(d.d, &env->fp_status);
|
|
}
|