diff options
| -rw-r--r-- | target-sparc/cpu.c | 2 | ||||
| -rw-r--r-- | target-sparc/cpu.h | 1 | ||||
| -rw-r--r-- | target-sparc/helper.c | 11 | ||||
| -rw-r--r-- | target-sparc/helper.h | 1 | ||||
| -rw-r--r-- | target-sparc/translate.c | 5 |
5 files changed, 19 insertions, 1 deletions
diff --git a/target-sparc/cpu.c b/target-sparc/cpu.c index cc1453e55f..50def61848 100644 --- a/target-sparc/cpu.c +++ b/target-sparc/cpu.c @@ -586,7 +586,7 @@ static const sparc_def_t sparc_defs[] = { .mmu_trcr_mask = 0xffffffff, .nwindows = 8, .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN | - CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL, + CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL | CPU_FEATURE_POWERDOWN, }, #endif }; diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 7389b03514..a2f2cc8989 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -270,6 +270,7 @@ typedef struct sparc_def_t { #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ #define CPU_FEATURE_ASR17 (1 << 15) #define CPU_FEATURE_CACHE_CTRL (1 << 16) +#define CPU_FEATURE_POWERDOWN (1 << 17) #ifndef TARGET_SPARC64 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ diff --git a/target-sparc/helper.c b/target-sparc/helper.c index 91ecfc7aa8..58e7efe567 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -225,3 +225,14 @@ target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1, cpu_restore_state(env, GETPC()); helper_raise_exception(env, TT_TOVF); } + +#ifndef TARGET_SPARC64 +void helper_power_down(CPUSPARCState *env) +{ + env->halted = 1; + env->exception_index = EXCP_HLT; + env->pc = env->npc; + env->npc = env->pc + 4; + cpu_loop_exit(env); +} +#endif diff --git a/target-sparc/helper.h b/target-sparc/helper.h index cfcdab1ea4..15f73283fa 100644 --- a/target-sparc/helper.h +++ b/target-sparc/helper.h @@ -4,6 +4,7 @@ DEF_HELPER_1(rett, void, env) DEF_HELPER_2(wrpsr, void, env, tl) DEF_HELPER_1(rdpsr, tl, env) +DEF_HELPER_1(power_down, void, env) #else DEF_HELPER_2(wrpil, void, env, tl) DEF_HELPER_2(wrpstate, void, env, tl) diff --git a/target-sparc/translate.c b/target-sparc/translate.c index ca75e1aa48..26c2056b93 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -3642,6 +3642,11 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn) in the SPARCv8 manual, nop on the microSPARC II */ + if ((rd == 0x13) && (dc->def->features & + CPU_FEATURE_POWERDOWN)) { + /* LEON3 power-down */ + gen_helper_power_down(cpu_env); + } break; #else case 0x2: /* V9 wrccr */ |