#include "def-helper.h"
DEF_HELPER_1(ldtlb, void, env)
-DEF_HELPER_1(raise_illegal_instruction, void, env)
-DEF_HELPER_1(raise_slot_illegal_instruction, void, env)
-DEF_HELPER_1(raise_fpu_disable, void, env)
-DEF_HELPER_1(raise_slot_fpu_disable, void, env)
-DEF_HELPER_1(debug, void, env)
-DEF_HELPER_2(sleep, void, env, i32)
-DEF_HELPER_2(trapa, void, env, i32)
+DEF_HELPER_1(raise_illegal_instruction, noreturn, env)
+DEF_HELPER_1(raise_slot_illegal_instruction, noreturn, env)
+DEF_HELPER_1(raise_fpu_disable, noreturn, env)
+DEF_HELPER_1(raise_slot_fpu_disable, noreturn, env)
+DEF_HELPER_1(debug, noreturn, env)
+DEF_HELPER_1(sleep, noreturn, env)
+DEF_HELPER_2(trapa, noreturn, env, i32)
DEF_HELPER_3(movcal, void, env, i32, i32)
DEF_HELPER_1(discard_movcal_backup, void, env)
#include "cpu.h"
#include "helper.h"
-static void cpu_restore_state_from_retaddr(CPUSH4State *env, uintptr_t retaddr)
+static inline void cpu_restore_state_from_retaddr(CPUSH4State *env,
+ uintptr_t retaddr)
{
TranslationBlock *tb;
#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);
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;
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)
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);
}
}
}
#define CHECK_NOT_DELAY_SLOT \
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
{ \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
gen_helper_raise_slot_illegal_instruction(cpu_env); \
- ctx->bstate = BS_EXCP; \
+ ctx->bstate = BS_BRANCH; \
return; \
}
#define CHECK_PRIVILEGED \
if (IS_USER(ctx)) { \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
gen_helper_raise_slot_illegal_instruction(cpu_env); \
} else { \
gen_helper_raise_illegal_instruction(cpu_env); \
} \
- ctx->bstate = BS_EXCP; \
+ ctx->bstate = BS_BRANCH; \
return; \
}
#define CHECK_FPU_ENABLED \
if (ctx->flags & SR_FD) { \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
gen_helper_raise_slot_fpu_disable(cpu_env); \
} else { \
gen_helper_raise_fpu_disable(cpu_env); \
} \
- ctx->bstate = BS_EXCP; \
+ ctx->bstate = BS_BRANCH; \
return; \
}
return;
case 0x001b: /* sleep */
CHECK_PRIVILEGED
- gen_helper_sleep(cpu_env, tcg_const_i32(ctx->pc + 2));
+ tcg_gen_movi_i32(cpu_pc, ctx->pc + 2);
+ gen_helper_sleep(cpu_env);
return;
}
{
TCGv imm;
CHECK_NOT_DELAY_SLOT
+ tcg_gen_movi_i32(cpu_pc, ctx->pc);
imm = tcg_const_i32(B7_0);
gen_helper_trapa(cpu_env, imm);
tcg_temp_free(imm);
ctx->opcode, ctx->pc);
fflush(stderr);
#endif
+ tcg_gen_movi_i32(cpu_pc, ctx->pc);
if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
gen_helper_raise_slot_illegal_instruction(cpu_env);
} else {
gen_helper_raise_illegal_instruction(cpu_env);
}
- ctx->bstate = BS_EXCP;
+ ctx->bstate = BS_BRANCH;
}
static void decode_opc(DisasContext * ctx)
/* We have hit a breakpoint - make sure PC is up-to-date */
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug(cpu_env);
- ctx.bstate = BS_EXCP;
+ ctx.bstate = BS_BRANCH;
break;
}
}