* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
-#include <assert.h>
#include <stdlib.h>
#include "cpu.h"
-#include "helper.h"
-
-static void cpu_restore_state_from_retaddr(CPUSH4State *env, uintptr_t retaddr)
-{
- TranslationBlock *tb;
-
- if (retaddr) {
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
- }
-}
+#include "exec/helper-proto.h"
+#include "exec/cpu_ldst.h"
#ifndef CONFIG_USER_ONLY
-#include "softmmu_exec.h"
-
-#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(CPUSH4State *env, target_ulong addr, int is_write, int mmu_idx,
+void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
int ret;
- ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx);
+ ret = superh_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
if (ret) {
/* now we have a real cpu fault */
- cpu_restore_state_from_retaddr(env, retaddr);
- cpu_loop_exit(env);
+ if (retaddr) {
+ cpu_restore_state(cs, retaddr);
+ }
+ cpu_loop_exit(cs);
}
}
void helper_ldtlb(CPUSH4State *env)
{
#ifdef CONFIG_USER_ONLY
+ SuperHCPU *cpu = sh_env_get_cpu(env);
+
/* XXXXX */
- cpu_abort(env, "Unhandled ldtlb");
+ cpu_abort(CPU(cpu), "Unhandled ldtlb");
#else
cpu_load_tlb(env);
#endif
}
-static inline void raise_exception(CPUSH4State *env, int index,
- uintptr_t retaddr)
+static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index,
+ uintptr_t retaddr)
{
- env->exception_index = index;
- cpu_restore_state_from_retaddr(env, retaddr);
- cpu_loop_exit(env);
+ CPUState *cs = CPU(sh_env_get_cpu(env));
+
+ cs->exception_index = index;
+ if (retaddr) {
+ cpu_restore_state(cs, retaddr);
+ }
+ cpu_loop_exit(cs);
}
void helper_raise_illegal_instruction(CPUSH4State *env)
{
- raise_exception(env, 0x180, GETPC());
+ raise_exception(env, 0x180, 0);
}
void helper_raise_slot_illegal_instruction(CPUSH4State *env)
{
- raise_exception(env, 0x1a0, GETPC());
+ raise_exception(env, 0x1a0, 0);
}
void helper_raise_fpu_disable(CPUSH4State *env)
{
- raise_exception(env, 0x800, GETPC());
+ raise_exception(env, 0x800, 0);
}
void helper_raise_slot_fpu_disable(CPUSH4State *env)
{
- raise_exception(env, 0x820, GETPC());
+ raise_exception(env, 0x820, 0);
}
void helper_debug(CPUSH4State *env)
{
- env->exception_index = EXCP_DEBUG;
- cpu_loop_exit(env);
+ raise_exception(env, EXCP_DEBUG, 0);
}
-void helper_sleep(CPUSH4State *env, uint32_t next_pc)
+void helper_sleep(CPUSH4State *env)
{
- env->halted = 1;
+ CPUState *cs = CPU(sh_env_get_cpu(env));
+
+ cs->halted = 1;
env->in_sleep = 1;
- env->exception_index = EXCP_HLT;
- env->pc = next_pc;
- cpu_loop_exit(env);
+ raise_exception(env, EXCP_HLT, 0);
}
void helper_trapa(CPUSH4State *env, uint32_t tra)
{
env->tra = tra << 2;
- raise_exception(env, 0x160, GETPC());
+ raise_exception(env, 0x160, 0);
}
void helper_movcal(CPUSH4State *env, uint32_t address, uint32_t value)
}
}
-uint32_t helper_addc(CPUSH4State *env, 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(CPUSH4State *env, 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(CPUSH4State *env, 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(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
{
int64_t res;
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 (env->sr & (1u << SR_S)) {
if (res < 0)
env->mach |= 0xffff0000;
else
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 (env->sr & (1u << SR_S)) {
if (res < -0x80000000) {
env->mach = 1;
env->macl = 0x80000000;
}
}
-uint32_t helper_subc(CPUSH4State *env, 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(CPUSH4State *env, 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(CPUSH4State *env)
-{
- env->sr |= SR_T;
-}
-
-static inline void clr_t(CPUSH4State *env)
-{
- env->sr &= ~SR_T;
-}
-
void helper_ld_fpscr(CPUSH4State *env, uint32_t val)
{
env->fpscr = val & FPSCR_MASK;
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(env, retaddr);
- env->exception_index = 0x120;
- cpu_loop_exit(env);
+ raise_exception(env, 0x120, retaddr);
}
}
}
relation = float32_compare(t0, t1, &env->fp_status);
if (unlikely(relation == float_relation_unordered)) {
update_fpscr(env, GETPC());
- } else if (relation == float_relation_equal) {
- set_t(env);
} else {
- clr_t(env);
+ env->sr_t = (relation == float_relation_equal);
}
}
relation = float64_compare(t0, t1, &env->fp_status);
if (unlikely(relation == float_relation_unordered)) {
update_fpscr(env, GETPC());
- } else if (relation == float_relation_equal) {
- set_t(env);
} else {
- clr_t(env);
+ env->sr_t = (relation == float_relation_equal);
}
}
relation = float32_compare(t0, t1, &env->fp_status);
if (unlikely(relation == float_relation_unordered)) {
update_fpscr(env, GETPC());
- } else if (relation == float_relation_greater) {
- set_t(env);
} else {
- clr_t(env);
+ env->sr_t = (relation == float_relation_greater);
}
}
relation = float64_compare(t0, t1, &env->fp_status);
if (unlikely(relation == float_relation_unordered)) {
update_fpscr(env, GETPC());
- } else if (relation == float_relation_greater) {
- set_t(env);
} else {
- clr_t(env);
+ env->sr_t = (relation == float_relation_greater);
}
}
float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2)
{
set_float_exception_flags(0, &env->fp_status);
- t0 = float32_mul(t0, t1, &env->fp_status);
- t0 = float32_add(t0, t2, &env->fp_status);
+ t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status);
update_fpscr(env, GETPC());
return t0;
}
projects / qemu.git / blobdiff