diff options
Diffstat (limited to 'target/m68k/cpu.c')
| -rw-r--r-- | target/m68k/cpu.c | 116 |
1 files changed, 83 insertions, 33 deletions
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index c6fde8132b..37d2ed9dc7 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); @@ -103,6 +108,7 @@ static void m5206_cpu_initfn(Object *obj) m68k_set_feature(env, M68K_FEATURE_CF_ISA_A); } +/* Base feature set, including isns. for m68k family */ static void m68000_cpu_initfn(Object *obj) { M68kCPU *cpu = M68K_CPU(obj); @@ -114,12 +120,36 @@ 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); + 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_BKPT); + m68k_set_feature(env, M68K_FEATURE_MOVEC); +} + +/* + * Adds BFCHG, BFCLR, BFEXTS, BFEXTU, BFFFO, BFINS, BFSET, BFTST, CAS, CAS2, + * CHK2, CMP2, DIVSL, DIVUL, EXTB, PACK, TRAPcc, UNPK. + * + * 68020/30 only: + * CALLM, cpBcc, cpDBcc, cpGEN, cpRESTORE, cpSAVE, cpScc, cpTRAPcc + */ +static void m68020_cpu_initfn(Object *obj) +{ + M68kCPU *cpu = M68K_CPU(obj); + CPUM68KState *env = &cpu->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); @@ -129,59 +159,78 @@ static void m680x0_cpu_common(CPUM68KState *env) 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); - m68k_set_feature(env, M68K_FEATURE_MOVEP); -} - -static void m68020_cpu_initfn(Object *obj) -{ - M68kCPU *cpu = M68K_CPU(obj); - CPUM68KState *env = &cpu->env; - - m680x0_cpu_common(env); - m68k_set_feature(env, M68K_FEATURE_M68020); + m68k_set_feature(env, M68K_FEATURE_MSP); } +/* + * Adds: PFLUSH (*5) + * 68030 Only: PFLUSHA (*5), PLOAD (*5), PMOVE + * 68030/40 Only: PTEST + * + * NOTES: + * 5. Not valid on MC68EC030 + */ 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); } +/* + * Adds: CINV, CPUSH + * Adds all with Note *2: FABS, FSABS, FDABS, FADD, FSADD, FDADD, FBcc, FCMP, + * FDBcc, FDIV, FSDIV, FDDIV, FMOVE, FSMOVE, FDMOVE, + * FMOVEM, FMUL, FSMUL, FDMUL, FNEG, FSNEG, FDNEG, FNOP, + * FRESTORE, FSAVE, FScc, FSQRT, FSSQRT, FDSQRT, FSUB, + * FSSUB, FDSUB, FTRAPcc, FTST + * + * Adds with Notes *2, and *3: FACOS, FASIN, FATAN, FATANH, FCOS, FCOSH, FETOX, + * FETOXM, FGETEXP, FGETMAN, FINT, FINTRZ, FLOG10, + * FLOG2, FLOGN, FLOGNP1, FMOD, FMOVECR, FREM, + * FSCALE, FSGLDIV, FSGLMUL, FSIN, FSINCOS, FSINH, + * FTAN, FTANH, FTENTOX, FTWOTOX + * NOTES: + * 2. Not applicable to the MC68EC040, MC68LC040, MC68EC060, and MC68LC060. + * 3. These are software-supported instructions on the MC68040 and MC68060. + */ 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); } +/* + * Adds: PLPA + * Adds all with Note *2: CAS, CAS2, MULS, MULU, CHK2, CMP2, DIVS, DIVU + * All Fxxxx instructions are as per m68040 with exception to; FMOVEM NOTE3 + * + * Does NOT implement MOVEP + * + * NOTES: + * 2. Not applicable to the MC68EC040, MC68LC040, MC68EC060, and MC68LC060. + * 3. These are software-supported instructions on the MC68040 and MC68060. + */ 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) @@ -533,6 +582,7 @@ 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), |