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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [sim/] [cr16/] [gencode.c] - Rev 285
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/* Simulation code for the CR16 processor. Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by M Ranga Swami Reddy <MR.Swami.Reddy@nsc.com> This file is part of GDB, the GNU debugger. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "config.h" #include <stdio.h> #include <ctype.h> #include <limits.h> #include "ansidecl.h" #include "opcode/cr16.h" static void write_header PARAMS ((void)); static void write_opcodes PARAMS ((void)); static void write_template PARAMS ((void)); int main (int argc, char *argv[]) { if ((argc > 1) && (strcmp (argv[1],"-h") == 0)) write_header(); else if ((argc > 1) && (strcmp (argv[1],"-t") == 0)) write_template (); else write_opcodes(); return 0; } static void write_header () { int i = 0; /* Start searching from end of instruction table. */ const inst *instruction = &cr16_instruction[NUMOPCODES - 1]; /* Loop over instruction table until a full match is found. */ for ( ; i < NUMOPCODES; i++) { printf("void OP_%X_%X PARAMS ((void));\t\t/* %s */\n",cr16_instruction[i].match, (32 - cr16_instruction[i].match_bits), cr16_instruction[i].mnemonic); } } /* write_template creates a file all required functions, ready to be filled out. */ static void write_template () { int i = 0,j, k, flags; printf ("#include \"cr16_sim.h\"\n"); printf ("#include \"simops.h\"\n\n"); for ( ; i < NUMOPCODES; i++) { if (cr16_instruction[i].size != 0) { printf("/* %s */\nvoid\nOP_%X_%X ()\n{\n",cr16_instruction[i].mnemonic,cr16_instruction[i].match,(32 - cr16_instruction[i].match_bits)); /* count operands. */ j = 0; for (k=0;k<5;k++) { if (cr16_instruction[i].operands[k].op_type == dummy) break; else j++; } switch (j) { case 0: printf ("printf(\" %s\\n\");\n",cr16_instruction[i].mnemonic); break; case 1: printf ("printf(\" %s\\t%%x\\n\",OP[0]);\n",cr16_instruction[i].mnemonic); break; case 2: printf ("printf(\" %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",cr16_instruction[i].mnemonic); break; case 3: printf ("printf(\" %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",cr16_instruction[i].mnemonic); break; default: fprintf (stderr,"Too many operands: %d\n",j); } printf ("}\n\n"); } } } long Opcodes[512]; static int curop=0; check_opcodes( long op) { int i; for (i=0;i<curop;i++) if (Opcodes[i] == op) fprintf(stderr,"DUPLICATE OPCODES: %x\n",op); } static void write_opcodes () { int i = 0, j = 0, k; /* write out opcode table. */ printf ("#include \"cr16_sim.h\"\n"); printf ("#include \"simops.h\"\n\n"); printf ("struct simops Simops[] = {\n"); for (i = NUMOPCODES-1; i >= 0; --i) { if (cr16_instruction[i].size != 0) { printf (" { \"%s\", %ld, %d, %d, %d, \"OP_%X_%X\", OP_%X_%X, ", cr16_instruction[i].mnemonic, cr16_instruction[i].size, cr16_instruction[i].match_bits, cr16_instruction[i].match, cr16_instruction[i].flags, ((BIN(cr16_instruction[i].match, cr16_instruction[i].match_bits))>>(cr16_instruction[i].match_bits)), (32 - cr16_instruction[i].match_bits), ((BIN(cr16_instruction[i].match, cr16_instruction[i].match_bits))>>(cr16_instruction[i].match_bits)), (32 - cr16_instruction[i].match_bits)); j = 0; for (k=0;k<5;k++) { if (cr16_instruction[i].operands[k].op_type == dummy) break; else j++; } printf ("%d, ",j); j = 0; for (k=0;k<4;k++) { int optype = cr16_instruction[i].operands[k].op_type; int shift = cr16_instruction[i].operands[k].shift; if (j == 0) printf ("{"); else printf (", "); printf ("{"); printf ("%d,%d",optype, shift); printf ("}"); j = 1; } if (j) printf ("}"); printf ("},\n"); } } printf (" { \"NULL\",1,8,0,0,\"OP_0_20\",OP_0_20,0,{0,0,0}},\n};\n"); }
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