decode.c

这个是LINUX下的GDB调度工具的源码

// OBSOLETE     {
// OBSOLETE       init_idesc (cpu, & table[t->index], t);
// OBSOLETE     }
// OBSOLETE 
// OBSOLETE   /* Link the IDESC table into the cpu.  */
// OBSOLETE   CPU_IDESC (cpu) = table;
// OBSOLETE }
// OBSOLETE 
// OBSOLETE /* Given an instruction, return a pointer to its IDESC entry.  */
// OBSOLETE 
// OBSOLETE const IDESC *
// OBSOLETE fr30bf_decode (SIM_CPU *current_cpu, IADDR pc,
// OBSOLETE               CGEN_INSN_INT base_insn,
// OBSOLETE               ARGBUF *abuf)
// OBSOLETE {
// OBSOLETE   /* Result of decoder.  */
// OBSOLETE   FR30BF_INSN_TYPE itype;
// OBSOLETE 
// OBSOLETE   {
// OBSOLETE     CGEN_INSN_INT insn = base_insn;
// OBSOLETE 
// OBSOLETE     {
// OBSOLETE       unsigned int val = (((insn >> 8) & (255 << 0)));
// OBSOLETE       switch (val)
// OBSOLETE       {
// OBSOLETE       case 0 : itype = FR30BF_INSN_LDR13;goto extract_sfmt_ldr13;
// OBSOLETE       case 1 : itype = FR30BF_INSN_LDR13UH;goto extract_sfmt_ldr13uh;
// OBSOLETE       case 2 : itype = FR30BF_INSN_LDR13UB;goto extract_sfmt_ldr13ub;
// OBSOLETE       case 3 : itype = FR30BF_INSN_LDR15;goto extract_sfmt_ldr15;
// OBSOLETE       case 4 : itype = FR30BF_INSN_LD;goto extract_sfmt_ld;
// OBSOLETE       case 5 : itype = FR30BF_INSN_LDUH;goto extract_sfmt_lduh;
// OBSOLETE       case 6 : itype = FR30BF_INSN_LDUB;goto extract_sfmt_ldub;
// OBSOLETE       case 7 :
// OBSOLETE         {
// OBSOLETE           unsigned int val = (((insn >> 6) & (1 << 1)) | ((insn >> 4) & (1 << 0)));
// OBSOLETE           switch (val)
// OBSOLETE           {
// OBSOLETE           case 0 : itype = FR30BF_INSN_LDR15GR;goto extract_sfmt_ldr15gr;
// OBSOLETE           case 1 : itype = FR30BF_INSN_MOV2PS;goto extract_sfmt_mov2ps;
// OBSOLETE           case 2 : itype = FR30BF_INSN_LDR15DR;goto extract_sfmt_ldr15dr;
// OBSOLETE           case 3 : itype = FR30BF_INSN_LDR15PS;goto extract_sfmt_ldr15ps;
// OBSOLETE           default : itype = FR30BF_INSN_X_INVALID; goto extract_sfmt_empty;
// OBSOLETE           }
// OBSOLETE         }
// OBSOLETE       case 8 : itype = FR30BF_INSN_DMOV2R13;goto extract_sfmt_dmov2r13;
// OBSOLETE       case 9 : itype = FR30BF_INSN_DMOV2R13H;goto extract_sfmt_dmov2r13h;
// OBSOLETE       case 10 : itype = FR30BF_INSN_DMOV2R13B;goto extract_sfmt_dmov2r13b;
// OBSOLETE       case 11 : itype = FR30BF_INSN_DMOV2R15PD;goto extract_sfmt_dmov2r15pd;
// OBSOLETE       case 12 : itype = FR30BF_INSN_DMOV2R13PI;goto extract_sfmt_dmov2r13pi;
// OBSOLETE       case 13 : itype = FR30BF_INSN_DMOV2R13PIH;goto extract_sfmt_dmov2r13pih;
// OBSOLETE       case 14 : itype = FR30BF_INSN_DMOV2R13PIB;goto extract_sfmt_dmov2r13pib;
// OBSOLETE       case 15 : itype = FR30BF_INSN_ENTER;goto extract_sfmt_enter;
// OBSOLETE       case 16 : itype = FR30BF_INSN_STR13;goto extract_sfmt_str13;
// OBSOLETE       case 17 : itype = FR30BF_INSN_STR13H;goto extract_sfmt_str13h;
// OBSOLETE       case 18 : itype = FR30BF_INSN_STR13B;goto extract_sfmt_str13b;
// OBSOLETE       case 19 : itype = FR30BF_INSN_STR15;goto extract_sfmt_str15;
// OBSOLETE       case 20 : itype = FR30BF_INSN_ST;goto extract_sfmt_st;
// OBSOLETE       case 21 : itype = FR30BF_INSN_STH;goto extract_sfmt_sth;
// OBSOLETE       case 22 : itype = FR30BF_INSN_STB;goto extract_sfmt_stb;
// OBSOLETE       case 23 :
// OBSOLETE         {
// OBSOLETE           unsigned int val = (((insn >> 6) & (1 << 1)) | ((insn >> 4) & (1 << 0)));
// OBSOLETE           switch (val)
// OBSOLETE           {
// OBSOLETE           case 0 : itype = FR30BF_INSN_STR15GR;goto extract_sfmt_str15gr;
// OBSOLETE           case 1 : itype = FR30BF_INSN_MOVPS;goto extract_sfmt_movps;
// OBSOLETE           case 2 : itype = FR30BF_INSN_STR15DR;goto extract_sfmt_str15dr;
// OBSOLETE           case 3 : itype = FR30BF_INSN_STR15PS;goto extract_sfmt_str15ps;
// OBSOLETE           default : itype = FR30BF_INSN_X_INVALID; goto extract_sfmt_empty;
// OBSOLETE           }
// OBSOLETE         }
// OBSOLETE       case 24 : itype = FR30BF_INSN_DMOVR13;goto extract_sfmt_dmovr13;
// OBSOLETE       case 25 : itype = FR30BF_INSN_DMOVR13H;goto extract_sfmt_dmovr13h;
// OBSOLETE       case 26 : itype = FR30BF_INSN_DMOVR13B;goto extract_sfmt_dmovr13b;
// OBSOLETE       case 27 : itype = FR30BF_INSN_DMOVR15PI;goto extract_sfmt_dmovr15pi;
// OBSOLETE       case 28 : itype = FR30BF_INSN_DMOVR13PI;goto extract_sfmt_dmovr13pi;
// OBSOLETE       case 29 : itype = FR30BF_INSN_DMOVR13PIH;goto extract_sfmt_dmovr13pih;
// OBSOLETE       case 30 : itype = FR30BF_INSN_DMOVR13PIB;goto extract_sfmt_dmovr13pib;
// OBSOLETE       case 31 : itype = FR30BF_INSN_INT;goto extract_sfmt_int;
// OBSOLETE       case 32 : /* fall through */
// OBSOLETE       case 33 : /* fall through */
// OBSOLETE       case 34 : /* fall through */
// OBSOLETE       case 35 : /* fall through */
// OBSOLETE       case 36 : /* fall through */
// OBSOLETE       case 37 : /* fall through */
// OBSOLETE       case 38 : /* fall through */
// OBSOLETE       case 39 : /* fall through */
// OBSOLETE       case 40 : /* fall through */
// OBSOLETE       case 41 : /* fall through */
// OBSOLETE       case 42 : /* fall through */
// OBSOLETE       case 43 : /* fall through */
// OBSOLETE       case 44 : /* fall through */
// OBSOLETE       case 45 : /* fall through */
// OBSOLETE       case 46 : /* fall through */
// OBSOLETE       case 47 : itype = FR30BF_INSN_LDR14;goto extract_sfmt_ldr14;
// OBSOLETE       case 48 : /* fall through */
// OBSOLETE       case 49 : /* fall through */
// OBSOLETE       case 50 : /* fall through */
// OBSOLETE       case 51 : /* fall through */
// OBSOLETE       case 52 : /* fall through */
// OBSOLETE       case 53 : /* fall through */
// OBSOLETE       case 54 : /* fall through */
// OBSOLETE       case 55 : /* fall through */
// OBSOLETE       case 56 : /* fall through */
// OBSOLETE       case 57 : /* fall through */
// OBSOLETE       case 58 : /* fall through */
// OBSOLETE       case 59 : /* fall through */
// OBSOLETE       case 60 : /* fall through */
// OBSOLETE       case 61 : /* fall through */
// OBSOLETE       case 62 : /* fall through */
// OBSOLETE       case 63 : itype = FR30BF_INSN_STR14;goto extract_sfmt_str14;
// OBSOLETE       case 64 : /* fall through */
// OBSOLETE       case 65 : /* fall through */
// OBSOLETE       case 66 : /* fall through */
// OBSOLETE       case 67 : /* fall through */
// OBSOLETE       case 68 : /* fall through */
// OBSOLETE       case 69 : /* fall through */
// OBSOLETE       case 70 : /* fall through */
// OBSOLETE       case 71 : /* fall through */
// OBSOLETE       case 72 : /* fall through */
// OBSOLETE       case 73 : /* fall through */
// OBSOLETE       case 74 : /* fall through */
// OBSOLETE       case 75 : /* fall through */
// OBSOLETE       case 76 : /* fall through */
// OBSOLETE       case 77 : /* fall through */
// OBSOLETE       case 78 : /* fall through */
// OBSOLETE       case 79 : itype = FR30BF_INSN_LDR14UH;goto extract_sfmt_ldr14uh;
// OBSOLETE       case 80 : /* fall through */
// OBSOLETE       case 81 : /* fall through */
// OBSOLETE       case 82 : /* fall through */
// OBSOLETE       case 83 : /* fall through */
// OBSOLETE       case 84 : /* fall through */
// OBSOLETE       case 85 : /* fall through */
// OBSOLETE       case 86 : /* fall through */
// OBSOLETE       case 87 : /* fall through */
// OBSOLETE       case 88 : /* fall through */
// OBSOLETE       case 89 : /* fall through */
// OBSOLETE       case 90 : /* fall through */
// OBSOLETE       case 91 : /* fall through */
// OBSOLETE       case 92 : /* fall through */
// OBSOLETE       case 93 : /* fall through */
// OBSOLETE       case 94 : /* fall through */
// OBSOLETE       case 95 : itype = FR30BF_INSN_STR14H;goto extract_sfmt_str14h;
// OBSOLETE       case 96 : /* fall through */
// OBSOLETE       case 97 : /* fall through */
// OBSOLETE       case 98 : /* fall through */
// OBSOLETE       case 99 : /* fall through */
// OBSOLETE       case 100 : /* fall through */
// OBSOLETE       case 101 : /* fall through */
// OBSOLETE       case 102 : /* fall through */
// OBSOLETE       case 103 : /* fall through */
// OBSOLETE       case 104 : /* fall through */
// OBSOLETE       case 105 : /* fall through */
// OBSOLETE       case 106 : /* fall through */
// OBSOLETE       case 107 : /* fall through */
// OBSOLETE       case 108 : /* fall through */
// OBSOLETE       case 109 : /* fall through */
// OBSOLETE       case 110 : /* fall through */
// OBSOLETE       case 111 : itype = FR30BF_INSN_LDR14UB;goto extract_sfmt_ldr14ub;
// OBSOLETE       case 112 : /* fall through */
// OBSOLETE       case 113 : /* fall through */
// OBSOLETE       case 114 : /* fall through */
// OBSOLETE       case 115 : /* fall through */
// OBSOLETE       case 116 : /* fall through */
// OBSOLETE       case 117 : /* fall through */
// OBSOLETE       case 118 : /* fall through */
// OBSOLETE       case 119 : /* fall through */
// OBSOLETE       case 120 : /* fall through */
// OBSOLETE       case 121 : /* fall through */
// OBSOLETE       case 122 : /* fall through */
// OBSOLETE       case 123 : /* fall through */
// OBSOLETE       case 124 : /* fall through */
// OBSOLETE       case 125 : /* fall through */
// OBSOLETE       case 126 : /* fall through */
// OBSOLETE       case 127 : itype = FR30BF_INSN_STR14B;goto extract_sfmt_str14b;
// OBSOLETE       case 128 : itype = FR30BF_INSN_BANDL;goto extract_sfmt_bandl;
// OBSOLETE       case 129 : itype = FR30BF_INSN_BANDH;goto extract_sfmt_bandl;
// OBSOLETE       case 130 : itype = FR30BF_INSN_AND;goto extract_sfmt_and;
// OBSOLETE       case 131 : itype = FR30BF_INSN_ANDCCR;goto extract_sfmt_andccr;
// OBSOLETE       case 132 : itype = FR30BF_INSN_ANDM;goto extract_sfmt_andm;
// OBSOLETE       case 133 : itype = FR30BF_INSN_ANDH;goto extract_sfmt_andh;
// OBSOLETE       case 134 : itype = FR30BF_INSN_ANDB;goto extract_sfmt_andb;
// OBSOLETE       case 135 : itype = FR30BF_INSN_STILM;goto extract_sfmt_stilm;
// OBSOLETE       case 136 : itype = FR30BF_INSN_BTSTL;goto extract_sfmt_btstl;
// OBSOLETE       case 137 : itype = FR30BF_INSN_BTSTH;goto extract_sfmt_btstl;
// OBSOLETE       case 138 : itype = FR30BF_INSN_XCHB;goto extract_sfmt_xchb;
// OBSOLETE       case 139 : itype = FR30BF_INSN_MOV;goto extract_sfmt_mov;
// OBSOLETE       case 140 : itype = FR30BF_INSN_LDM0;goto extract_sfmt_ldm0;
// OBSOLETE       case 141 : itype = FR30BF_INSN_LDM1;goto extract_sfmt_ldm1;
// OBSOLETE       case 142 : itype = FR30BF_INSN_STM0;goto extract_sfmt_stm0;
// OBSOLETE       case 143 : itype = FR30BF_INSN_STM1;goto extract_sfmt_stm1;
// OBSOLETE       case 144 : itype = FR30BF_INSN_BORL;goto extract_sfmt_bandl;
// OBSOLETE       case 145 : itype = FR30BF_INSN_BORH;goto extract_sfmt_bandl;
// OBSOLETE       case 146 : itype = FR30BF_INSN_OR;goto extract_sfmt_and;
// OBSOLETE       case 147 : itype = FR30BF_INSN_ORCCR;goto extract_sfmt_andccr;
// OBSOLETE       case 148 : itype = FR30BF_INSN_ORM;goto extract_sfmt_andm;
// OBSOLETE       case 149 : itype = FR30BF_INSN_ORH;goto extract_sfmt_andh;
// OBSOLETE       case 150 : itype = FR30BF_INSN_ORB;goto extract_sfmt_andb;
// OBSOLETE       case 151 :
// OBSOLETE         {
// OBSOLETE           unsigned int val = (((insn >> 4) & (15 << 0)));
// OBSOLETE           switch (val)
// OBSOLETE           {
// OBSOLETE           case 0 : itype = FR30BF_INSN_JMP;goto extract_sfmt_jmp;
// OBSOLETE           case 1 : itype = FR30BF_INSN_CALLR;goto extract_sfmt_callr;
// OBSOLETE           case 2 : itype = FR30BF_INSN_RET;goto extract_sfmt_ret;
// OBSOLETE           case 3 : itype = FR30BF_INSN_RETI;goto extract_sfmt_reti;
// OBSOLETE           case 4 : itype = FR30BF_INSN_DIV0S;goto extract_sfmt_div0s;
// OBSOLETE           case 5 : itype = FR30BF_INSN_DIV0U;goto extract_sfmt_div0u;
// OBSOLETE           case 6 : itype = FR30BF_INSN_DIV1;goto extract_sfmt_div1;
// OBSOLETE           case 7 : itype = FR30BF_INSN_DIV2;goto extract_sfmt_div2;
// OBSOLETE           case 8 : itype = FR30BF_INSN_EXTSB;goto extract_sfmt_extsb;
// OBSOLETE           case 9 : itype = FR30BF_INSN_EXTUB;goto extract_sfmt_extub;
// OBSOLETE           case 10 : itype = FR30BF_INSN_EXTSH;goto extract_sfmt_extsh;
// OBSOLETE           case 11 : itype = FR30BF_INSN_EXTUH;goto extract_sfmt_extuh;
// OBSOLETE           default : itype = FR30BF_INSN_X_INVALID; goto extract_sfmt_empty;
// OBSOLETE           }
// OBSOLETE         }
// OBSOLETE       case 152 : itype = FR30BF_INSN_BEORL;goto extract_sfmt_bandl;
// OBSOLETE       case 153 : itype = FR30BF_INSN_BEORH;goto extract_sfmt_bandl;
// OBSOLETE       case 154 : itype = FR30BF_INSN_EOR;goto extract_sfmt_and;
// OBSOLETE       case 155 : itype = FR30BF_INSN_LDI20;goto extract_sfmt_ldi20;
// OBSOLETE       case 156 : itype = FR30BF_INSN_EORM;goto extract_sfmt_andm;
// OBSOLETE       case 157 : itype = FR30BF_INSN_EORH;goto extract_sfmt_andh;
// OBSOLETE       case 158 : itype = FR30BF_INSN_EORB;goto extract_sfmt_andb;
// OBSOLETE       case 159 :
// OBSOLETE         {
// OBSOLETE           unsigned int val = (((insn >> 4) & (15 << 0)));
// OBSOLETE           switch (val)
// OBSOLETE           {
// OBSOLETE           case 0 : itype = FR30BF_INSN_JMPD;goto extract_sfmt_jmp;
// OBSOLETE           case 1 : itype = FR30BF_INSN_CALLRD;goto extract_sfmt_callr;
// OBSOLETE           case 2 : itype = FR30BF_INSN_RET_D;goto extract_sfmt_ret;
// OBSOLETE           case 3 : itype = FR30BF_INSN_INTE;goto extract_sfmt_inte;
// OBSOLETE           case 6 : itype = FR30BF_INSN_DIV3;goto extract_sfmt_div3;
// OBSOLETE           case 7 : itype = FR30BF_INSN_DIV4S;goto extract_sfmt_div4s;
// OBSOLETE           case 8 : itype = FR30BF_INSN_LDI32;goto extract_sfmt_ldi32;
// OBSOLETE           case 9 : itype = FR30BF_INSN_LEAVE;goto extract_sfmt_leave;
// OBSOLETE           case 10 : itype = FR30BF_INSN_NOP;goto extract_sfmt_bnod;
// OBSOLETE           case 12 : itype = FR30BF_INSN_COPOP;goto extract_sfmt_copop;
// OBSOLETE           case 13 : itype = FR30BF_INSN_COPLD;goto extract_sfmt_copop;
// OBSOLETE           case 14 : itype = FR30BF_INSN_COPST;goto extract_sfmt_copop;
// OBSOLETE           case 15 : itype = FR30BF_INSN_COPSV;goto extract_sfmt_copop;
// OBSOLETE           default : itype = FR30BF_INSN_X_INVALID; goto extract_sfmt_empty;
// OBSOLETE           }
// OBSOLETE         }
// OBSOLETE       case 160 : itype = FR30BF_INSN_ADDNI;goto extract_sfmt_addni;
// OBSOLETE       case 161 : itype = FR30BF_INSN_ADDN2;goto extract_sfmt_addn2;
// OBSOLETE       case 162 : itype = FR30BF_INSN_ADDN;goto extract_sfmt_addn;
// OBSOLETE       case 163 : itype = FR30BF_INSN_ADDSP;goto extract_sfmt_addsp;
// OBSOLETE       case 164 : itype = FR30BF_INSN_ADDI;goto extract_sfmt_addi;
// OBSOLETE       case 165 : itype = FR30BF_INSN_ADD2;goto extract_sfmt_add2;
// OBSOLETE       case 166 : itype = FR30BF_INSN_ADD;goto extract_sfmt_add;
// OBSOLETE       case 167 : itype = FR30BF_INSN_ADDC;goto extract_sfmt_addc;
// OBSOLETE       case 168 : itype = FR30BF_INSN_CMPI;goto extract_sfmt_cmpi;
// OBSOLETE       case 169 : itype = FR30BF_INSN_CMP2;goto extract_sfmt_cmp2;
// OBSOLETE       case 170 : itype = FR30BF_INSN_CMP;goto extract_sfmt_cmp;
// OBSOLETE       case 171 : itype = FR30BF_INSN_MULU;goto extract_sfmt_mulu;
// OBSOLETE       case 172 : itype = FR30BF_INSN_SUB;goto extract_sfmt_add;
// OBSOLETE       case 173 : itype = FR30BF_INSN_SUBC;goto extract_sfmt_addc;
// OBSOLETE       case 174 : itype = FR30BF_INSN_SUBN;goto extract_sfmt_addn;
// OBSOLETE       case 175 : itype = FR30BF_INSN_MUL;goto extract_sfmt_mul;
// OBSOLETE       case 176 : itype = FR30BF_INSN_LSRI;goto extract_sfmt_lsli;
// OBSOLETE       case 177 : itype = FR30BF_INSN_LSR2;goto extract_sfmt_lsli;
// OBSOLETE       case 178 : itype = FR30BF_INSN_LSR;goto extract_sfmt_lsl;
// OBSOLETE       case 179 : itype = FR30BF_INSN_MOV2DR;goto extract_sfmt_mov2dr;
// OBSOLETE       case 180 : itype = FR30BF_INSN_LSLI;goto extract_sfmt_lsli;