?? translate.c
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if (cond == 0x8) { save_state(dc); gen_op_trap_T0(); } else if (cond != 0) {#ifdef TARGET_SPARC64 /* V9 icc/xcc */ int cc = GET_FIELD_SP(insn, 11, 12); flush_T2(dc); save_state(dc); if (cc == 0) gen_cond[0][cond](); else if (cc == 2) gen_cond[1][cond](); else goto illegal_insn;#else flush_T2(dc); save_state(dc); gen_cond[0][cond]();#endif gen_op_trapcc_T0(); } gen_op_next_insn(); gen_op_movl_T0_0(); gen_op_exit_tb(); dc->is_br = 1; goto jmp_insn; } else if (xop == 0x28) { rs1 = GET_FIELD(insn, 13, 17); switch(rs1) { case 0: /* rdy */#ifndef TARGET_SPARC64 case 0x01 ... 0x0e: /* undefined in the SPARCv8 manual, rdy on the microSPARC II */ case 0x0f: /* stbar in the SPARCv8 manual, rdy on the microSPARC II */ case 0x10 ... 0x1f: /* implementation-dependent in the SPARCv8 manual, rdy on the microSPARC II */#endif gen_op_movtl_T0_env(offsetof(CPUSPARCState, y)); gen_movl_T0_reg(rd); break;#ifdef TARGET_SPARC64 case 0x2: /* V9 rdccr */ gen_op_rdccr(); gen_movl_T0_reg(rd); break; case 0x3: /* V9 rdasi */ gen_op_movl_T0_env(offsetof(CPUSPARCState, asi)); gen_movl_T0_reg(rd); break; case 0x4: /* V9 rdtick */ gen_op_rdtick(); gen_movl_T0_reg(rd); break; case 0x5: /* V9 rdpc */ if (dc->pc == (uint32_t)dc->pc) { gen_op_movl_T0_im(dc->pc); } else { gen_op_movq_T0_im64(dc->pc >> 32, dc->pc); } gen_movl_T0_reg(rd); break; case 0x6: /* V9 rdfprs */ gen_op_movl_T0_env(offsetof(CPUSPARCState, fprs)); gen_movl_T0_reg(rd); break; case 0xf: /* V9 membar */ break; /* no effect */ case 0x13: /* Graphics Status */ if (gen_trap_ifnofpu(dc)) goto jmp_insn; gen_op_movtl_T0_env(offsetof(CPUSPARCState, gsr)); gen_movl_T0_reg(rd); break; case 0x17: /* Tick compare */ gen_op_movtl_T0_env(offsetof(CPUSPARCState, tick_cmpr)); gen_movl_T0_reg(rd); break; case 0x18: /* System tick */ gen_op_rdstick(); gen_movl_T0_reg(rd); break; case 0x19: /* System tick compare */ gen_op_movtl_T0_env(offsetof(CPUSPARCState, stick_cmpr)); gen_movl_T0_reg(rd); break; case 0x10: /* Performance Control */ case 0x11: /* Performance Instrumentation Counter */ case 0x12: /* Dispatch Control */ case 0x14: /* Softint set, WO */ case 0x16: /* Softint write */#endif default: goto illegal_insn; }#if !defined(CONFIG_USER_ONLY) } else if (xop == 0x29) { /* rdpsr / UA2005 rdhpr */#ifndef TARGET_SPARC64 if (!supervisor(dc)) goto priv_insn; gen_op_rdpsr();#else if (!hypervisor(dc)) goto priv_insn; rs1 = GET_FIELD(insn, 13, 17); switch (rs1) { case 0: // hpstate // gen_op_rdhpstate(); break; case 1: // htstate // gen_op_rdhtstate(); break; case 3: // hintp gen_op_movl_T0_env(offsetof(CPUSPARCState, hintp)); break; case 5: // htba gen_op_movl_T0_env(offsetof(CPUSPARCState, htba)); break; case 6: // hver gen_op_movl_T0_env(offsetof(CPUSPARCState, hver)); break; case 31: // hstick_cmpr gen_op_movl_env_T0(offsetof(CPUSPARCState, hstick_cmpr)); break; default: goto illegal_insn; }#endif gen_movl_T0_reg(rd); break; } else if (xop == 0x2a) { /* rdwim / V9 rdpr */ if (!supervisor(dc)) goto priv_insn;#ifdef TARGET_SPARC64 rs1 = GET_FIELD(insn, 13, 17); switch (rs1) { case 0: // tpc gen_op_rdtpc(); break; case 1: // tnpc gen_op_rdtnpc(); break; case 2: // tstate gen_op_rdtstate(); break; case 3: // tt gen_op_rdtt(); break; case 4: // tick gen_op_rdtick(); break; case 5: // tba gen_op_movtl_T0_env(offsetof(CPUSPARCState, tbr)); break; case 6: // pstate gen_op_rdpstate(); break; case 7: // tl gen_op_movl_T0_env(offsetof(CPUSPARCState, tl)); break; case 8: // pil gen_op_movl_T0_env(offsetof(CPUSPARCState, psrpil)); break; case 9: // cwp gen_op_rdcwp(); break; case 10: // cansave gen_op_movl_T0_env(offsetof(CPUSPARCState, cansave)); break; case 11: // canrestore gen_op_movl_T0_env(offsetof(CPUSPARCState, canrestore)); break; case 12: // cleanwin gen_op_movl_T0_env(offsetof(CPUSPARCState, cleanwin)); break; case 13: // otherwin gen_op_movl_T0_env(offsetof(CPUSPARCState, otherwin)); break; case 14: // wstate gen_op_movl_T0_env(offsetof(CPUSPARCState, wstate)); break; case 16: // UA2005 gl gen_op_movl_T0_env(offsetof(CPUSPARCState, gl)); break; case 26: // UA2005 strand status if (!hypervisor(dc)) goto priv_insn; gen_op_movl_T0_env(offsetof(CPUSPARCState, ssr)); break; case 31: // ver gen_op_movtl_T0_env(offsetof(CPUSPARCState, version)); break; case 15: // fq default: goto illegal_insn; }#else gen_op_movl_T0_env(offsetof(CPUSPARCState, wim));#endif gen_movl_T0_reg(rd); break; } else if (xop == 0x2b) { /* rdtbr / V9 flushw */#ifdef TARGET_SPARC64 gen_op_flushw();#else if (!supervisor(dc)) goto priv_insn; gen_op_movtl_T0_env(offsetof(CPUSPARCState, tbr)); gen_movl_T0_reg(rd);#endif break;#endif } else if (xop == 0x34) { /* FPU Operations */ if (gen_trap_ifnofpu(dc)) goto jmp_insn; gen_op_clear_ieee_excp_and_FTT(); rs1 = GET_FIELD(insn, 13, 17); rs2 = GET_FIELD(insn, 27, 31); xop = GET_FIELD(insn, 18, 26); switch (xop) { case 0x1: /* fmovs */ gen_op_load_fpr_FT0(rs2); gen_op_store_FT0_fpr(rd); break; case 0x5: /* fnegs */ gen_op_load_fpr_FT1(rs2); gen_op_fnegs(); gen_op_store_FT0_fpr(rd); break; case 0x9: /* fabss */ gen_op_load_fpr_FT1(rs2); gen_op_fabss(); gen_op_store_FT0_fpr(rd); break; case 0x29: /* fsqrts */ gen_op_load_fpr_FT1(rs2); gen_op_fsqrts(); gen_op_store_FT0_fpr(rd); break; case 0x2a: /* fsqrtd */ gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fsqrtd(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x2b: /* fsqrtq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fsqrtq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0x41: gen_op_load_fpr_FT0(rs1); gen_op_load_fpr_FT1(rs2); gen_op_fadds(); gen_op_store_FT0_fpr(rd); break; case 0x42: gen_op_load_fpr_DT0(DFPREG(rs1)); gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_faddd(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x43: /* faddq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT0(QFPREG(rs1)); gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_faddq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0x45: gen_op_load_fpr_FT0(rs1); gen_op_load_fpr_FT1(rs2); gen_op_fsubs(); gen_op_store_FT0_fpr(rd); break; case 0x46: gen_op_load_fpr_DT0(DFPREG(rs1)); gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fsubd(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x47: /* fsubq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT0(QFPREG(rs1)); gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fsubq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0x49: gen_op_load_fpr_FT0(rs1); gen_op_load_fpr_FT1(rs2); gen_op_fmuls(); gen_op_store_FT0_fpr(rd); break; case 0x4a: gen_op_load_fpr_DT0(DFPREG(rs1)); gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fmuld(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x4b: /* fmulq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT0(QFPREG(rs1)); gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fmulq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0x4d: gen_op_load_fpr_FT0(rs1); gen_op_load_fpr_FT1(rs2); gen_op_fdivs(); gen_op_store_FT0_fpr(rd); break; case 0x4e: gen_op_load_fpr_DT0(DFPREG(rs1)); gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fdivd(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x4f: /* fdivq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT0(QFPREG(rs1)); gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fdivq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0x69: gen_op_load_fpr_FT0(rs1); gen_op_load_fpr_FT1(rs2); gen_op_fsmuld(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0x6e: /* fdmulq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_DT0(DFPREG(rs1)); gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fdmulq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0xc4: gen_op_load_fpr_FT1(rs2); gen_op_fitos(); gen_op_store_FT0_fpr(rd); break; case 0xc6: gen_op_load_fpr_DT1(DFPREG(rs2)); gen_op_fdtos(); gen_op_store_FT0_fpr(rd); break; case 0xc7: /* fqtos */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fqtos(); gen_op_store_FT0_fpr(rd); break;#else goto nfpu_insn;#endif case 0xc8: gen_op_load_fpr_FT1(rs2); gen_op_fitod(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0xc9: gen_op_load_fpr_FT1(rs2); gen_op_fstod(); gen_op_store_DT0_fpr(DFPREG(rd)); break; case 0xcb: /* fqtod */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_QT1(QFPREG(rs2)); gen_op_fqtod(); gen_op_store_DT0_fpr(DFPREG(rd)); break;#else goto nfpu_insn;#endif case 0xcc: /* fitoq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_FT1(rs2); gen_op_fitoq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0xcd: /* fstoq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_FT1(rs2); gen_op_fstoq(); gen_op_store_QT0_fpr(QFPREG(rd)); break;#else goto nfpu_insn;#endif case 0xce: /* fdtoq */#if defined(CONFIG_USER_ONLY) gen_op_load_fpr_DT1(DFPREG(rs2));?? 快捷鍵說明
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