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https://github.com/darlinghq/darling-gdb.git
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849c575f97
* d10v-sim.h (simops): Add flag is_long. (State): Add pc_changed. Instructions which update the PC should use the JMP macro which sets this. (JMP): New macro. Sets the PC and the pc_changed flag. * gencode.c (write_opcodes): Add is_long field. * interp.c (lookup_hash): If we blindly apply a short opcode's mask to a long opcode we could get a false match. Check the opcode size. (hash): Add a size field to the hash table. (sim_open): Initialize size field in hash table. (sim_resume): Change to logic for setting the PC. Used to increment the PC if it had not been changed. This didn't allow single-instruction loops. Now checks the flag State.pc_changed. Also now stops when ^C is received. (dmem_addr): Fix translation of data segments to unified memory. (sim_ctrl_c): New function. When ^C is received, set stop_simulator flag. * simops.c: Changed all branch and jump instructions to use new JMP macro. (OP_20000000): Corrected trace information to show this is a ldi.l, not a ldi.s instruction.
147 lines
3.4 KiB
C
147 lines
3.4 KiB
C
#include "d10v_sim.h"
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static void write_header PARAMS ((void));
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static void write_opcodes PARAMS ((void));
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static void write_template PARAMS ((void));
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int
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main (argc, argv)
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int argc;
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char *argv[];
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{
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if ((argc > 1) && (strcmp (argv[1],"-h") == 0))
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write_header();
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else if ((argc > 1) && (strcmp (argv[1],"-t") == 0))
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write_template ();
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else
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write_opcodes();
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return 0;
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}
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static void
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write_header ()
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{
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struct d10v_opcode *opcode;
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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if (opcode->format != OPCODE_FAKE)
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printf("void OP_%X PARAMS ((void));\t\t/* %s */\n",opcode->opcode, opcode->name);
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}
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/* write_template creates a file all required functions, ready */
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/* to be filled out */
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static void
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write_template ()
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{
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struct d10v_opcode *opcode;
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int i,j;
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printf ("#include \"d10v_sim.h\"\n");
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printf ("#include \"simops.h\"\n");
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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{
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if (opcode->format != OPCODE_FAKE)
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{
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printf("/* %s */\nvoid\nOP_%X ()\n{\n",opcode->name,opcode->opcode);
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/* count operands */
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
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j++;
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}
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switch (j)
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{
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case 0:
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printf ("printf(\" %s\\n\");\n",opcode->name);
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break;
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case 1:
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printf ("printf(\" %s\\t%%x\\n\",OP[0]);\n",opcode->name);
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break;
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case 2:
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printf ("printf(\" %s\\t%%x,%%x\\n\",OP[0],OP[1]);\n",opcode->name);
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break;
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case 3:
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printf ("printf(\" %s\\t%%x,%%x,%%x\\n\",OP[0],OP[1],OP[2]);\n",opcode->name);
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break;
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default:
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fprintf (stderr,"Too many operands: %d\n",j);
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}
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printf ("}\n\n");
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}
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}
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}
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long Opcodes[512];
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static int curop=0;
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check_opcodes( long op)
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{
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int i;
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for (i=0;i<curop;i++)
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if (Opcodes[i] == op)
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fprintf(stderr,"DUPLICATE OPCODES: %x\n",op);
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}
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static void
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write_opcodes ()
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{
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struct d10v_opcode *opcode;
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int i, j;
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/* write out opcode table */
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printf ("#include \"d10v_sim.h\"\n");
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printf ("#include \"simops.h\"\n\n");
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printf ("struct simops Simops[] = {\n");
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for (opcode = (struct d10v_opcode *)d10v_opcodes; opcode->name; opcode++)
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{
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if (opcode->format != OPCODE_FAKE)
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{
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printf (" { %ld,%d,%ld,%d,%d,%d,%d,OP_%X,", opcode->opcode,
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(opcode->format & LONG_OPCODE) ? 1 : 0, opcode->mask, opcode->format,
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opcode->cycles, opcode->unit, opcode->exec_type, opcode->opcode);
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/* REMOVE ME */
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check_opcodes (opcode->opcode);
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Opcodes[curop++] = opcode->opcode;
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM) || (flags & OPERAND_ADDR))
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j++;
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}
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printf ("%d,{",j);
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j = 0;
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for (i=0;i<6;i++)
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{
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int flags = d10v_operands[opcode->operands[i]].flags;
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int shift = d10v_operands[opcode->operands[i]].shift;
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if ((flags & OPERAND_REG) || (flags & OPERAND_NUM)|| (flags & OPERAND_ADDR))
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{
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if (j)
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printf (", ");
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if ((flags & OPERAND_REG) && (opcode->format == LONG_L))
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shift += 15;
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printf ("%d,%d,%d",shift,d10v_operands[opcode->operands[i]].bits,flags);
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j = 1;
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}
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}
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printf ("}},\n");
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}
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}
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printf ("{ 0,0,0,0,0,0,NULL,0,{ }},\n};\n");
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}
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