diff options
Diffstat (limited to 'target/m68k/cpu.c')
| -rw-r--r-- | target/m68k/cpu.c | 72 |
1 files changed, 38 insertions, 34 deletions
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index 5c72f24694..d0f8bd4433 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -41,6 +41,11 @@ static void m68k_set_feature(CPUM68KState *env, int feature) env->features |= (1u << feature); } +static void m68k_unset_feature(CPUM68KState *env, int feature) +{ + env->features &= (-1u - (1u << feature)); +} + static void m68k_cpu_reset(DeviceState *dev) { CPUState *s = CPU(dev); @@ -115,25 +120,18 @@ static void m68000_cpu_initfn(Object *obj) m68k_set_feature(env, M68K_FEATURE_MOVEP); } -/* common features for 68020, 68030 and 68040 */ -static void m680x0_cpu_common(CPUM68KState *env) +/* + * Adds BKPT, MOVE-from-SR *now priv instr, and MOVEC, MOVES, RTD + */ +static void m68010_cpu_initfn(Object *obj) { - m68k_set_feature(env, M68K_FEATURE_M68000); - m68k_set_feature(env, M68K_FEATURE_USP); - m68k_set_feature(env, M68K_FEATURE_WORD_INDEX); - m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV); - m68k_set_feature(env, M68K_FEATURE_BRAL); - m68k_set_feature(env, M68K_FEATURE_BCCL); - m68k_set_feature(env, M68K_FEATURE_BITFIELD); - m68k_set_feature(env, M68K_FEATURE_EXT_FULL); - m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX); - m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV); - m68k_set_feature(env, M68K_FEATURE_FPU); - m68k_set_feature(env, M68K_FEATURE_CAS); - m68k_set_feature(env, M68K_FEATURE_BKPT); + M68kCPU *cpu = M68K_CPU(obj); + CPUM68KState *env = &cpu->env; + + m68000_cpu_initfn(obj); + m68k_set_feature(env, M68K_FEATURE_M68010); m68k_set_feature(env, M68K_FEATURE_RTD); - m68k_set_feature(env, M68K_FEATURE_CHK2); - m68k_set_feature(env, M68K_FEATURE_MOVEP); + m68k_set_feature(env, M68K_FEATURE_BKPT); } /* @@ -148,8 +146,19 @@ static void m68020_cpu_initfn(Object *obj) M68kCPU *cpu = M68K_CPU(obj); CPUM68KState *env = &cpu->env; - m680x0_cpu_common(env); + m68010_cpu_initfn(obj); + m68k_unset_feature(env, M68K_FEATURE_M68010); m68k_set_feature(env, M68K_FEATURE_M68020); + m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV); + m68k_set_feature(env, M68K_FEATURE_BRAL); + m68k_set_feature(env, M68K_FEATURE_BCCL); + m68k_set_feature(env, M68K_FEATURE_BITFIELD); + m68k_set_feature(env, M68K_FEATURE_EXT_FULL); + m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX); + m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV); + m68k_set_feature(env, M68K_FEATURE_FPU); + m68k_set_feature(env, M68K_FEATURE_CAS); + m68k_set_feature(env, M68K_FEATURE_CHK2); } /* @@ -165,7 +174,8 @@ static void m68030_cpu_initfn(Object *obj) M68kCPU *cpu = M68K_CPU(obj); CPUM68KState *env = &cpu->env; - m680x0_cpu_common(env); + m68020_cpu_initfn(obj); + m68k_unset_feature(env, M68K_FEATURE_M68020); m68k_set_feature(env, M68K_FEATURE_M68030); } @@ -191,7 +201,8 @@ static void m68040_cpu_initfn(Object *obj) M68kCPU *cpu = M68K_CPU(obj); CPUM68KState *env = &cpu->env; - m680x0_cpu_common(env); + m68030_cpu_initfn(obj); + m68k_unset_feature(env, M68K_FEATURE_M68030); m68k_set_feature(env, M68K_FEATURE_M68040); } @@ -211,21 +222,13 @@ static void m68060_cpu_initfn(Object *obj) M68kCPU *cpu = M68K_CPU(obj); CPUM68KState *env = &cpu->env; - m68k_set_feature(env, M68K_FEATURE_M68000); - m68k_set_feature(env, M68K_FEATURE_USP); - m68k_set_feature(env, M68K_FEATURE_WORD_INDEX); - m68k_set_feature(env, M68K_FEATURE_BRAL); - m68k_set_feature(env, M68K_FEATURE_BCCL); - m68k_set_feature(env, M68K_FEATURE_BITFIELD); - m68k_set_feature(env, M68K_FEATURE_EXT_FULL); - m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX); - m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV); - m68k_set_feature(env, M68K_FEATURE_FPU); - m68k_set_feature(env, M68K_FEATURE_CAS); - m68k_set_feature(env, M68K_FEATURE_BKPT); - m68k_set_feature(env, M68K_FEATURE_RTD); - m68k_set_feature(env, M68K_FEATURE_CHK2); + m68040_cpu_initfn(obj); + m68k_unset_feature(env, M68K_FEATURE_M68040); m68k_set_feature(env, M68K_FEATURE_M68060); + m68k_unset_feature(env, M68K_FEATURE_MOVEP); + + /* Implemented as a software feature */ + m68k_unset_feature(env, M68K_FEATURE_QUAD_MULDIV); } static void m5208_cpu_initfn(Object *obj) @@ -577,6 +580,7 @@ static const TypeInfo m68k_cpus_type_infos[] = { .class_init = m68k_cpu_class_init, }, DEFINE_M68K_CPU_TYPE_M68K(m68000), + DEFINE_M68K_CPU_TYPE_M68K(m68010), DEFINE_M68K_CPU_TYPE_M68K(m68020), DEFINE_M68K_CPU_TYPE_M68K(m68030), DEFINE_M68K_CPU_TYPE_M68K(m68040), |