* 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
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
+#include <stdlib.h>
#include "exec.h"
+#include "helper.h"
+
+static void cpu_restore_state_from_retaddr(void *retaddr)
+{
+ TranslationBlock *tb;
+ unsigned long pc;
+
+ if (retaddr) {
+ 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);
+ }
+ }
+}
#ifndef CONFIG_USER_ONLY
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
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();
+ /* now we have a real cpu fault */
+ cpu_restore_state_from_retaddr(retaddr);
+ cpu_loop_exit(env);
}
env = saved_env;
}
{
#ifdef CONFIG_USER_ONLY
/* XXXXX */
- assert(0);
+ cpu_abort(env, "Unhandled ldtlb");
#else
cpu_load_tlb(env);
#endif
}
+static inline void raise_exception(int index, void *retaddr)
+{
+ env->exception_index = index;
+ cpu_restore_state_from_retaddr(retaddr);
+ cpu_loop_exit(env);
+}
+
void helper_raise_illegal_instruction(void)
{
- env->exception_index = 0x180;
- cpu_loop_exit();
+ raise_exception(0x180, GETPC());
}
void helper_raise_slot_illegal_instruction(void)
{
- env->exception_index = 0x1a0;
- cpu_loop_exit();
+ raise_exception(0x1a0, GETPC());
+}
+
+void helper_raise_fpu_disable(void)
+{
+ raise_exception(0x800, GETPC());
+}
+
+void helper_raise_slot_fpu_disable(void)
+{
+ raise_exception(0x820, GETPC());
}
void helper_debug(void)
{
env->exception_index = EXCP_DEBUG;
- cpu_loop_exit();
+ cpu_loop_exit(env);
}
-void helper_sleep(void)
+void helper_sleep(uint32_t next_pc)
{
env->halted = 1;
+ env->in_sleep = 1;
env->exception_index = EXCP_HLT;
- cpu_loop_exit();
+ env->pc = next_pc;
+ cpu_loop_exit(env);
}
void helper_trapa(uint32_t tra)
{
env->tra = tra << 2;
- env->exception_index = 0x160;
- cpu_loop_exit();
+ raise_exception(0x160, GETPC());
+}
+
+void helper_movcal(uint32_t address, uint32_t value)
+{
+ if (cpu_sh4_is_cached (env, address))
+ {
+ memory_content *r = malloc (sizeof(memory_content));
+ r->address = address;
+ r->value = value;
+ r->next = NULL;
+
+ *(env->movcal_backup_tail) = r;
+ env->movcal_backup_tail = &(r->next);
+ }
+}
+
+void helper_discard_movcal_backup(void)
+{
+ memory_content *current = env->movcal_backup;
+
+ while(current)
+ {
+ memory_content *next = current->next;
+ free (current);
+ env->movcal_backup = current = next;
+ if (current == NULL)
+ env->movcal_backup_tail = &(env->movcal_backup);
+ }
+}
+
+void helper_ocbi(uint32_t address)
+{
+ memory_content **current = &(env->movcal_backup);
+ while (*current)
+ {
+ uint32_t a = (*current)->address;
+ if ((a & ~0x1F) == (address & ~0x1F))
+ {
+ memory_content *next = (*current)->next;
+ stl(a, (*current)->value);
+
+ if (next == NULL)
+ {
+ env->movcal_backup_tail = current;
+ }
+
+ free (*current);
+ *current = next;
+ break;
+ }
+ }
}
uint32_t helper_addc(uint32_t arg0, uint32_t arg1)
}
}
-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;
void helper_ld_fpscr(uint32_t val)
{
- env->fpscr = val & 0x003fffff;
- if (val & 0x01)
+ env->fpscr = val & FPSCR_MASK;
+ if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
set_float_rounding_mode(float_round_to_zero, &env->fp_status);
- else
+ } else {
set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ }
+ set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
+}
+
+static void update_fpscr(void *retaddr)
+{
+ int xcpt, cause, enable;
+
+ xcpt = get_float_exception_flags(&env->fp_status);
+
+ /* Clear the flag entries */
+ env->fpscr &= ~FPSCR_FLAG_MASK;
+
+ if (unlikely(xcpt)) {
+ if (xcpt & float_flag_invalid) {
+ env->fpscr |= FPSCR_FLAG_V;
+ }
+ if (xcpt & float_flag_divbyzero) {
+ env->fpscr |= FPSCR_FLAG_Z;
+ }
+ if (xcpt & float_flag_overflow) {
+ env->fpscr |= FPSCR_FLAG_O;
+ }
+ if (xcpt & float_flag_underflow) {
+ env->fpscr |= FPSCR_FLAG_U;
+ }
+ if (xcpt & float_flag_inexact) {
+ env->fpscr |= FPSCR_FLAG_I;
+ }
+
+ /* Accumulate in cause entries */
+ env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
+ << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
+
+ /* Generate an exception if enabled */
+ cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
+ enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
+ if (cause & enable) {
+ cpu_restore_state_from_retaddr(retaddr);
+ env->exception_index = 0x120;
+ cpu_loop_exit(env);
+ }
+ }
}
-uint32_t helper_fabs_FT(uint32_t t0)
+float32 helper_fabs_FT(float32 t0)
{
- float32 ret = float32_abs(*(float32*)&t0);
- return *(uint32_t*)(&ret);
+ return float32_abs(t0);
}
-uint64_t helper_fabs_DT(uint64_t t0)
+float64 helper_fabs_DT(float64 t0)
{
- float64 ret = float64_abs(*(float64*)&t0);
- return *(uint64_t*)(&ret);
+ return float64_abs(t0);
}
-uint32_t helper_fadd_FT(uint32_t t0, uint32_t t1)
+float32 helper_fadd_FT(float32 t0, float32 t1)
{
- float32 ret = float32_add(*(float32*)&t0, *(float32*)&t1, &env->fp_status);
- return *(uint32_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_add(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint64_t helper_fadd_DT(uint64_t t0, uint64_t t1)
+float64 helper_fadd_DT(float64 t0, float64 t1)
{
- float64 ret = float64_add(*(float64*)&t0, *(float64*)&t1, &env->fp_status);
- return *(uint64_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_add(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-void helper_fcmp_eq_FT(uint32_t t0, uint32_t t1)
+void helper_fcmp_eq_FT(float32 t0, float32 t1)
{
- if (float32_compare(*(float32*)&t0, *(float32*)&t1, &env->fp_status) == 0)
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float32_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(GETPC());
+ } else if (relation == float_relation_equal) {
set_t();
- else
+ } else {
clr_t();
+ }
}
-void helper_fcmp_eq_DT(uint64_t t0, uint64_t t1)
+void helper_fcmp_eq_DT(float64 t0, float64 t1)
{
- if (float64_compare(*(float64*)&t0, *(float64*)&t1, &env->fp_status) == 0)
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float64_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(GETPC());
+ } else if (relation == float_relation_equal) {
set_t();
- else
+ } else {
clr_t();
+ }
}
-void helper_fcmp_gt_FT(uint32_t t0, uint32_t t1)
+void helper_fcmp_gt_FT(float32 t0, float32 t1)
{
- if (float32_compare(*(float32*)&t0, *(float32*)&t1, &env->fp_status) == 1)
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float32_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(GETPC());
+ } else if (relation == float_relation_greater) {
set_t();
- else
+ } else {
clr_t();
+ }
}
-void helper_fcmp_gt_DT(uint64_t t0, uint64_t t1)
+void helper_fcmp_gt_DT(float64 t0, float64 t1)
{
- if (float64_compare(*(float64*)&t0, *(float64*)&t1, &env->fp_status) == 1)
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float64_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(GETPC());
+ } else if (relation == float_relation_greater) {
set_t();
- else
+ } else {
clr_t();
+ }
}
-uint64_t helper_fcnvsd_FT_DT(uint32_t t0)
+float64 helper_fcnvsd_FT_DT(float32 t0)
{
- float64 ret = float32_to_float64(*(float32*)&t0, &env->fp_status);
- return *(uint64_t*)(&ret);
+ float64 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float32_to_float64(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
}
-uint32_t helper_fcnvds_DT_FT(uint64_t t0)
+float32 helper_fcnvds_DT_FT(float64 t0)
{
- float32 ret = float64_to_float32(*(float64*)&t0, &env->fp_status);
- return *(uint32_t*)(&ret);
+ float32 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float64_to_float32(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
}
-uint32_t helper_fdiv_FT(uint32_t t0, uint32_t t1)
+float32 helper_fdiv_FT(float32 t0, float32 t1)
{
- float32 ret = float32_div(*(float32*)&t0, *(float32*)&t1, &env->fp_status);
- return *(uint32_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_div(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint64_t helper_fdiv_DT(uint64_t t0, uint64_t t1)
+float64 helper_fdiv_DT(float64 t0, float64 t1)
{
- float64 ret = float64_div(*(float64*)&t0, *(float64*)&t1, &env->fp_status);
- return *(uint64_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_div(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint32_t helper_float_FT(uint32_t t0)
+float32 helper_float_FT(uint32_t t0)
{
- float32 ret = int32_to_float32(t0, &env->fp_status);
- return *(uint32_t*)(&ret);
+ float32 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = int32_to_float32(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
}
-uint64_t helper_float_DT(uint32_t t0)
+float64 helper_float_DT(uint32_t t0)
{
- float64 ret = int32_to_float64(t0, &env->fp_status);
- return *(uint64_t*)(&ret);
+ float64 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = int32_to_float64(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
}
-uint32_t helper_fmul_FT(uint32_t t0, uint32_t t1)
+float32 helper_fmac_FT(float32 t0, float32 t1, float32 t2)
{
- float32 ret = float32_mul(*(float32*)&t0, *(float32*)&t1, &env->fp_status);
- return *(uint32_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_mul(t0, t1, &env->fp_status);
+ t0 = float32_add(t0, t2, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint64_t helper_fmul_DT(uint64_t t0, uint64_t t1)
+float32 helper_fmul_FT(float32 t0, float32 t1)
{
- float64 ret = float64_mul(*(float64*)&t0, *(float64*)&t1, &env->fp_status);
- return *(uint64_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_mul(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint32_t helper_fsqrt_FT(uint32_t t0)
+float64 helper_fmul_DT(float64 t0, float64 t1)
{
- float32 ret = float32_sqrt(*(float32*)&t0, &env->fp_status);
- return *(uint32_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_mul(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint64_t helper_fsqrt_DT(uint64_t t0)
+float32 helper_fneg_T(float32 t0)
{
- float64 ret = float64_sqrt(*(float64*)&t0, &env->fp_status);
- return *(uint64_t*)(&ret);
+ return float32_chs(t0);
}
-uint32_t helper_fsub_FT(uint32_t t0, uint32_t t1)
+float32 helper_fsqrt_FT(float32 t0)
{
- float32 ret = float32_sub(*(float32*)&t0, *(float32*)&t1, &env->fp_status);
- return *(uint32_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_sqrt(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint64_t helper_fsub_DT(uint64_t t0, uint64_t t1)
+float64 helper_fsqrt_DT(float64 t0)
{
- float64 ret = float64_sub(*(float64*)&t0, *(float64*)&t1, &env->fp_status);
- return *(uint64_t*)(&ret);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_sqrt(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint32_t helper_ftrc_FT(uint32_t t0)
+float32 helper_fsub_FT(float32 t0, float32 t1)
{
- return float32_to_int32_round_to_zero(*(float32*)&t0, &env->fp_status);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_sub(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
}
-uint32_t helper_ftrc_DT(uint64_t t0)
+float64 helper_fsub_DT(float64 t0, float64 t1)
{
- return float64_to_int32_round_to_zero(*(float64*)&t0, &env->fp_status);
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_sub(t0, t1, &env->fp_status);
+ update_fpscr(GETPC());
+ return t0;
+}
+
+uint32_t helper_ftrc_FT(float32 t0)
+{
+ uint32_t ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float32_to_int32_round_to_zero(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
+}
+
+uint32_t helper_ftrc_DT(float64 t0)
+{
+ uint32_t ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float64_to_int32_round_to_zero(t0, &env->fp_status);
+ update_fpscr(GETPC());
+ return ret;
+}
+
+void helper_fipr(uint32_t m, uint32_t n)
+{
+ int bank, i;
+ float32 r, p;
+
+ bank = (env->sr & FPSCR_FR) ? 16 : 0;
+ r = float32_zero;
+ set_float_exception_flags(0, &env->fp_status);
+
+ for (i = 0 ; i < 4 ; i++) {
+ p = float32_mul(env->fregs[bank + m + i],
+ env->fregs[bank + n + i],
+ &env->fp_status);
+ r = float32_add(r, p, &env->fp_status);
+ }
+ update_fpscr(GETPC());
+
+ env->fregs[bank + n + 3] = r;
+}
+
+void helper_ftrv(uint32_t n)
+{
+ int bank_matrix, bank_vector;
+ int i, j;
+ float32 r[4];
+ float32 p;
+
+ bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
+ bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
+ set_float_exception_flags(0, &env->fp_status);
+ for (i = 0 ; i < 4 ; i++) {
+ r[i] = float32_zero;
+ for (j = 0 ; j < 4 ; j++) {
+ p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
+ env->fregs[bank_vector + j],
+ &env->fp_status);
+ r[i] = float32_add(r[i], p, &env->fp_status);
+ }
+ }
+ update_fpscr(GETPC());
+
+ for (i = 0 ; i < 4 ; i++) {
+ env->fregs[bank_vector + i] = r[i];
+ }
}
projects / qemu.git / blobdiff