mirror of
https://github.com/espressif/binutils-gdb.git
synced 2025-06-20 09:58:19 +08:00
Tue Aug 20 14:10:02 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
* tc-d10v.c: All references to defined symbols should now use the optimal instruction. .float and .double now work.
This commit is contained in:
@ -29,17 +29,19 @@
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const char comment_chars[] = "#;";
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const char comment_chars[] = "#;";
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const char line_comment_chars[] = "#";
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const char line_comment_chars[] = "#";
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const char line_separator_chars[] = "";
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const char line_separator_chars[] = "";
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const char *md_shortopts = "";
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const char *md_shortopts = "O";
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const char EXP_CHARS[] = "eE";
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const char EXP_CHARS[] = "eE";
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const char FLT_CHARS[] = "dD";
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const char FLT_CHARS[] = "dD";
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int Optimizing = 0;
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/* fixups */
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/* fixups */
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#define MAX_INSN_FIXUPS (5)
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#define MAX_INSN_FIXUPS (5)
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struct d10v_fixup
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struct d10v_fixup
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{
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{
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expressionS exp;
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expressionS exp;
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bfd_reloc_code_real_type reloc;
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int operand;
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int pcrel;
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};
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};
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typedef struct _fixups
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typedef struct _fixups
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@ -59,6 +61,7 @@ static int check_range PARAMS ((unsigned long num, int bits, int flags));
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static int postfix PARAMS ((char *p));
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static int postfix PARAMS ((char *p));
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static bfd_reloc_code_real_type get_reloc PARAMS ((struct d10v_operand *op));
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static bfd_reloc_code_real_type get_reloc PARAMS ((struct d10v_operand *op));
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static int get_operands PARAMS ((expressionS exp[]));
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static int get_operands PARAMS ((expressionS exp[]));
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static struct d10v_opcode *find_opcode PARAMS ((struct d10v_opcode *opcode, expressionS ops[]));
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static unsigned long build_insn PARAMS ((struct d10v_opcode *opcode, expressionS *opers, unsigned long insn));
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static unsigned long build_insn PARAMS ((struct d10v_opcode *opcode, expressionS *opers, unsigned long insn));
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static void write_long PARAMS ((struct d10v_opcode *opcode, unsigned long insn, Fixups *fx));
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static void write_long PARAMS ((struct d10v_opcode *opcode, unsigned long insn, Fixups *fx));
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static void write_1_short PARAMS ((struct d10v_opcode *opcode, unsigned long insn, Fixups *fx));
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static void write_1_short PARAMS ((struct d10v_opcode *opcode, unsigned long insn, Fixups *fx));
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@ -67,6 +70,8 @@ static int write_2_short PARAMS ((struct d10v_opcode *opcode1, unsigned long ins
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static unsigned long do_assemble PARAMS ((char *str, struct d10v_opcode **opcode));
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static unsigned long do_assemble PARAMS ((char *str, struct d10v_opcode **opcode));
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static unsigned long d10v_insert_operand PARAMS (( unsigned long insn, int op_type,
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static unsigned long d10v_insert_operand PARAMS (( unsigned long insn, int op_type,
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offsetT value, int left));
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offsetT value, int left));
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static int parallel_ok PARAMS ((struct d10v_opcode *opcode1, unsigned long insn1,
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struct d10v_opcode *opcode2, unsigned long insn2));
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struct option md_longopts[] = {
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struct option md_longopts[] = {
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@ -192,7 +197,7 @@ md_show_usage (stream)
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FILE *stream;
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FILE *stream;
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{
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{
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fprintf(stream, "D10V options:\n\
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fprintf(stream, "D10V options:\n\
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none yet\n");
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-O optimize. Will do some operations in parallel.\n");
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}
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}
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int
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int
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@ -200,7 +205,16 @@ md_parse_option (c, arg)
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int c;
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int c;
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char *arg;
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char *arg;
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{
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{
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return 0;
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switch (c)
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{
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case 'O':
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/* Optimize. Will attempt to parallelize operations */
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Optimizing = 1;
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break;
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default:
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return 0;
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}
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return 1;
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}
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}
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symbolS *
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symbolS *
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@ -210,13 +224,46 @@ md_undefined_symbol (name)
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return 0;
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return 0;
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}
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}
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/* Turn a string in input_line_pointer into a floating point constant of type
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type, and store the appropriate bytes in *litP. The number of LITTLENUMS
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emitted is stored in *sizeP . An error message is returned, or NULL on OK.
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*/
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char *
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char *
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md_atof (type, litp, sizep)
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md_atof (type, litP, sizeP)
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int type;
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int type;
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char *litp;
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char *litP;
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int *sizep;
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int *sizeP;
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{
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{
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return "";
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int prec;
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LITTLENUM_TYPE words[4];
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char *t;
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int i;
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switch (type)
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{
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case 'f':
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prec = 2;
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break;
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case 'd':
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prec = 4;
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break;
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default:
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*sizeP = 0;
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return "bad call to md_atof";
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}
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t = atof_ieee (input_line_pointer, type, words);
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if (t)
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input_line_pointer = t;
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*sizeP = prec * 2;
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for (i = 0; i < prec; i++)
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{
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md_number_to_chars (litP, (valueT) words[i], 2);
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litP += 2;
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}
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return NULL;
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}
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}
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void
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void
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@ -466,16 +513,14 @@ build_insn (opcode, opers, insn)
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/*
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/*
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printf("need a fixup: ");
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printf("need a fixup: ");
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print_expr_1(stdout,&opers[i]);
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print_expr_1(stdout,&opers[i]);
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printf("\n");ddd
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printf("\n");
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*/
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*/
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if (fixups->fc >= MAX_INSN_FIXUPS)
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if (fixups->fc >= MAX_INSN_FIXUPS)
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as_fatal ("too many fixups");
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as_fatal ("too many fixups");
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fixups->fix[fixups->fc].exp = opers[i];
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fixups->fix[fixups->fc].exp = opers[i];
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fixups->fix[fixups->fc].operand = opcode->operands[i];
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/* put the operand number here for now. We can look up
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fixups->fix[fixups->fc].pcrel = (flags & OPERAND_ADDR) ? true : false;
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the reloc type and/or fixup the instruction in md_apply_fix() */
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fixups->fix[fixups->fc].reloc = opcode->operands[i];
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(fixups->fc)++;
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(fixups->fc)++;
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}
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}
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@ -511,7 +556,7 @@ write_long (opcode, insn, fx)
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for (i=0; i < fx->fc; i++)
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for (i=0; i < fx->fc; i++)
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{
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{
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if (get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].reloc]))
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if (get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].operand]))
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{
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{
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/*
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/*
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printf("fix_new_exp: where:%x size:4\n ",f - frag_now->fr_literal);
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printf("fix_new_exp: where:%x size:4\n ",f - frag_now->fr_literal);
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@ -523,8 +568,8 @@ write_long (opcode, insn, fx)
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f - frag_now->fr_literal,
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f - frag_now->fr_literal,
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4,
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4,
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&(fx->fix[i].exp),
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&(fx->fix[i].exp),
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1,
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fx->fix[i].pcrel,
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fx->fix[i].reloc|2048);
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fx->fix[i].operand|2048);
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}
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}
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}
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}
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fx->fc = 0;
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fx->fc = 0;
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@ -541,7 +586,7 @@ write_1_short (opcode, insn, fx)
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char *f = frag_more(4);
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char *f = frag_more(4);
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int i;
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int i;
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if (opcode->exec_type == PARONLY)
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if (opcode->exec_type & PARONLY)
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as_fatal ("Instruction must be executed in parallel with another instruction.");
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as_fatal ("Instruction must be executed in parallel with another instruction.");
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/* the other container needs to be NOP */
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/* the other container needs to be NOP */
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@ -557,7 +602,7 @@ write_1_short (opcode, insn, fx)
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for (i=0; i < fx->fc; i++)
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for (i=0; i < fx->fc; i++)
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{
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{
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bfd_reloc_code_real_type reloc;
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bfd_reloc_code_real_type reloc;
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reloc = get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].reloc]);
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reloc = get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].operand]);
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if (reloc)
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if (reloc)
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{
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{
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/*
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/*
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@ -568,14 +613,14 @@ write_1_short (opcode, insn, fx)
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/* if it's an R reloc, we may have to switch it to L */
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/* if it's an R reloc, we may have to switch it to L */
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if ( (reloc == BFD_RELOC_D10V_10_PCREL_R) && (opcode->unit != IU) )
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if ( (reloc == BFD_RELOC_D10V_10_PCREL_R) && (opcode->unit != IU) )
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fx->fix[i].reloc |= 1024;
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fx->fix[i].operand |= 1024;
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fix_new_exp (frag_now,
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fix_new_exp (frag_now,
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f - frag_now->fr_literal,
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f - frag_now->fr_literal,
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4,
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4,
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&(fx->fix[i].exp),
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&(fx->fix[i].exp),
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1,
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fx->fix[i].pcrel,
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fx->fix[i].reloc|2048);
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fx->fix[i].operand|2048);
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}
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}
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}
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}
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fx->fc = 0;
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fx->fc = 0;
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@ -594,14 +639,14 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
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char *f;
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char *f;
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int i,j;
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int i,j;
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if ( (exec_type != 1) && ((opcode1->exec_type == PARONLY)
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if ( (exec_type != 1) && ((opcode1->exec_type & PARONLY)
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|| (opcode2->exec_type == PARONLY)))
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|| (opcode2->exec_type & PARONLY)))
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as_fatal("Instruction must be executed in parallel");
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as_fatal("Instruction must be executed in parallel");
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if ( (opcode1->format & LONG_OPCODE) || (opcode2->format & LONG_OPCODE))
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if ( (opcode1->format & LONG_OPCODE) || (opcode2->format & LONG_OPCODE))
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as_fatal ("Long instructions may not be combined.");
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as_fatal ("Long instructions may not be combined.");
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if(opcode1->exec_type == BRANCH_LINK)
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if(opcode1->exec_type & BRANCH_LINK)
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{
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{
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/* subroutines must be called from 32-bit boundaries */
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/* subroutines must be called from 32-bit boundaries */
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/* so the return address will be correct */
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/* so the return address will be correct */
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@ -611,20 +656,34 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
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switch (exec_type)
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switch (exec_type)
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{
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{
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case 0:
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case 0: /* order not specified */
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if (opcode1->unit == IU)
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if ( Optimizing && parallel_ok (opcode1, insn1, opcode2, insn2))
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{
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/* parallel */
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if (opcode1->unit == IU)
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insn = FM00 | (insn2 << 15) | insn1;
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else if (opcode2->unit == MU)
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insn = FM00 | (insn2 << 15) | insn1;
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else
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{
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insn = FM00 | (insn1 << 15) | insn2;
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fx = fx->next;
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}
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|
}
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else if (opcode1->unit == IU)
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{
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{
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/* reverse sequential */
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/* reverse sequential */
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insn = FM10 | (insn2 << 15) | insn1;
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insn = FM10 | (insn2 << 15) | insn1;
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}
|
}
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else
|
else
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{
|
{
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|
/* sequential */
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insn = FM01 | (insn1 << 15) | insn2;
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insn = FM01 | (insn1 << 15) | insn2;
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fx = fx->next;
|
fx = fx->next;
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}
|
}
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break;
|
break;
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case 1: /* parallel */
|
case 1: /* parallel */
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if (opcode1->exec_type == SEQ || opcode2->exec_type == SEQ)
|
if (opcode1->exec_type & SEQ || opcode2->exec_type & SEQ)
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as_fatal ("One of these instructions may not be executed in parallel.");
|
as_fatal ("One of these instructions may not be executed in parallel.");
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|
|
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if (opcode1->unit == IU)
|
if (opcode1->unit == IU)
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@ -633,7 +692,6 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
|
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as_fatal ("Two IU instructions may not be executed in parallel");
|
as_fatal ("Two IU instructions may not be executed in parallel");
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as_warn ("Swapping instruction order");
|
as_warn ("Swapping instruction order");
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insn = FM00 | (insn2 << 15) | insn1;
|
insn = FM00 | (insn2 << 15) | insn1;
|
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fx = fx->next;
|
|
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}
|
}
|
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else if (opcode2->unit == MU)
|
else if (opcode2->unit == MU)
|
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{
|
{
|
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@ -641,11 +699,12 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
|
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as_fatal ("Two MU instructions may not be executed in parallel");
|
as_fatal ("Two MU instructions may not be executed in parallel");
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as_warn ("Swapping instruction order");
|
as_warn ("Swapping instruction order");
|
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insn = FM00 | (insn2 << 15) | insn1;
|
insn = FM00 | (insn2 << 15) | insn1;
|
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fx = fx->next;
|
|
||||||
}
|
}
|
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else
|
else
|
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insn = FM00 | (insn1 << 15) | insn2;
|
{
|
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fx = fx->next;
|
insn = FM00 | (insn1 << 15) | insn2;
|
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|
fx = fx->next;
|
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|
}
|
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break;
|
break;
|
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case 2: /* sequential */
|
case 2: /* sequential */
|
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if (opcode1->unit == IU)
|
if (opcode1->unit == IU)
|
||||||
@ -657,6 +716,7 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
|
|||||||
if (opcode2->unit == MU)
|
if (opcode2->unit == MU)
|
||||||
as_fatal ("MU instruction may not be in the right container");
|
as_fatal ("MU instruction may not be in the right container");
|
||||||
insn = FM10 | (insn1 << 15) | insn2;
|
insn = FM10 | (insn1 << 15) | insn2;
|
||||||
|
fx = fx->next;
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
as_fatal("unknown execution type passed to write_2_short()");
|
as_fatal("unknown execution type passed to write_2_short()");
|
||||||
@ -666,38 +726,132 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx)
|
|||||||
f = frag_more(4);
|
f = frag_more(4);
|
||||||
number_to_chars_bigendian (f, insn, 4);
|
number_to_chars_bigendian (f, insn, 4);
|
||||||
|
|
||||||
for (j=0; j<2; j++)
|
for (j=0; j<2; j++)
|
||||||
{
|
{
|
||||||
bfd_reloc_code_real_type reloc;
|
bfd_reloc_code_real_type reloc;
|
||||||
for (i=0; i < fx->fc; i++)
|
for (i=0; i < fx->fc; i++)
|
||||||
{
|
{
|
||||||
reloc = get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].reloc]);
|
reloc = get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].operand]);
|
||||||
if (reloc)
|
if (reloc)
|
||||||
{
|
{
|
||||||
if ( (reloc == BFD_RELOC_D10V_10_PCREL_R) && (j == 0) )
|
if ( (reloc == BFD_RELOC_D10V_10_PCREL_R) && (j == 0) )
|
||||||
fx->fix[i].reloc |= 1024;
|
fx->fix[i].operand |= 1024;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
printf("fix_new_exp: where:%x reloc:%d\n ",f - frag_now->fr_literal,fx->fix[i].reloc);
|
printf("fix_new_exp: where:%x reloc:%d\n ",f - frag_now->fr_literal,fx->fix[i].operand);
|
||||||
print_expr_1(stdout,&(fx->fix[i].exp));
|
print_expr_1(stdout,&(fx->fix[i].exp));
|
||||||
printf("\n");
|
printf("\n");
|
||||||
*/
|
*/
|
||||||
fix_new_exp (frag_now,
|
fix_new_exp (frag_now,
|
||||||
f - frag_now->fr_literal,
|
f - frag_now->fr_literal,
|
||||||
4,
|
4,
|
||||||
&(fx->fix[i].exp),
|
&(fx->fix[i].exp),
|
||||||
1,
|
fx->fix[i].pcrel,
|
||||||
fx->fix[i].reloc|2048);
|
fx->fix[i].operand|2048);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
fx->fc = 0;
|
fx->fc = 0;
|
||||||
fx = fx->next;
|
fx = fx->next;
|
||||||
}
|
}
|
||||||
|
|
||||||
return (0);
|
return (0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* Check 2 instructions and determine if they can be safely */
|
||||||
|
/* executed in parallel. Returns 1 if they can be. */
|
||||||
|
static int
|
||||||
|
parallel_ok (op1, insn1, op2, insn2)
|
||||||
|
struct d10v_opcode *op1, *op2;
|
||||||
|
unsigned long insn1, insn2;
|
||||||
|
{
|
||||||
|
int i, j, flags, mask, shift, regno;
|
||||||
|
unsigned long ins, mod[2], used[2];
|
||||||
|
struct d10v_opcode *op;
|
||||||
|
|
||||||
|
if (op1->exec_type & SEQ || op2->exec_type & SEQ)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
/* The idea here is to create two sets of bitmasks (mod and used) */
|
||||||
|
/* which indicate which registers are modified or used by each instruction. */
|
||||||
|
/* The operation can only be done in parallel if instruction 1 and instruction 2 */
|
||||||
|
/* modify different registers, and neither instruction modifies any registers */
|
||||||
|
/* the other is using. Accesses to control registers, PSW, and memory are treated */
|
||||||
|
/* as accesses to a single register. So if both instructions write memory or one */
|
||||||
|
/* instruction writes memory and the other reads, then they cannot be done in parallel. */
|
||||||
|
/* Likewise, if one instruction mucks with the psw and the other reads the PSW */
|
||||||
|
/* (which includes C, F0, and F1), then they cannot operate safely in parallel. */
|
||||||
|
|
||||||
|
/* the bitmasks (mod and used) look like this (bit 31 = MSB) */
|
||||||
|
/* r0-r15 0-15 */
|
||||||
|
/* a0-a1 16-17 */
|
||||||
|
/* cr (not psw) 18 */
|
||||||
|
/* psw 19 */
|
||||||
|
/* mem 20 */
|
||||||
|
|
||||||
|
for (j=0;j<2;j++)
|
||||||
|
{
|
||||||
|
if (j == 0)
|
||||||
|
{
|
||||||
|
op = op1;
|
||||||
|
ins = insn1;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
op = op2;
|
||||||
|
ins = insn2;
|
||||||
|
}
|
||||||
|
mod[j] = used[j] = 0;
|
||||||
|
for (i = 0; op1->operands[i]; i++)
|
||||||
|
{
|
||||||
|
flags = d10v_operands[op->operands[i]].flags;
|
||||||
|
shift = d10v_operands[op->operands[i]].shift;
|
||||||
|
mask = 0x7FFFFFFF >> (31 - d10v_operands[op->operands[i]].bits);
|
||||||
|
if (flags & OPERAND_REG)
|
||||||
|
{
|
||||||
|
regno = (ins >> shift) & mask;
|
||||||
|
if (flags & OPERAND_ACC)
|
||||||
|
regno += 16;
|
||||||
|
else if (flags & OPERAND_CONTROL) /* mvtc or mvfc */
|
||||||
|
{
|
||||||
|
if (regno == 0)
|
||||||
|
regno = 19;
|
||||||
|
else
|
||||||
|
regno = 18;
|
||||||
|
}
|
||||||
|
else if (flags & OPERAND_FLAG)
|
||||||
|
regno = 19;
|
||||||
|
|
||||||
|
if ( flags & OPERAND_DEST )
|
||||||
|
{
|
||||||
|
mod[j] |= 1 << regno;
|
||||||
|
if (flags & OPERAND_EVEN)
|
||||||
|
mod[j] |= 1 << (regno + 1);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
used[j] |= 1 << regno ;
|
||||||
|
if (flags & OPERAND_EVEN)
|
||||||
|
used[j] |= 1 << (regno + 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (op->exec_type & RMEM)
|
||||||
|
used[j] |= 1 << 20;
|
||||||
|
else if (op->exec_type & WMEM)
|
||||||
|
mod[j] |= 1 << 20;
|
||||||
|
else if (op->exec_type & RF0)
|
||||||
|
used[j] |= 1 << 19;
|
||||||
|
else if (op->exec_type & WF0)
|
||||||
|
mod[j] |= 1 << 19;
|
||||||
|
else if (op->exec_type & WCAR)
|
||||||
|
mod[j] |= 1 << 19;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if ((mod[0] & mod[1]) == 0 && (mod[0] & used[1]) == 0 && (mod[1] & used[0]) == 0)
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
/* This is the main entry point for the machine-dependent assembler. str points to a
|
/* This is the main entry point for the machine-dependent assembler. str points to a
|
||||||
machine-dependent instruction. This function is supposed to emit the frags/bytes
|
machine-dependent instruction. This function is supposed to emit the frags/bytes
|
||||||
it assembles to. For the D10V, it mostly handles the special VLIW parsing and packing
|
it assembles to. For the D10V, it mostly handles the special VLIW parsing and packing
|
||||||
@ -817,11 +971,10 @@ do_assemble (str, opcode)
|
|||||||
char *str;
|
char *str;
|
||||||
struct d10v_opcode **opcode;
|
struct d10v_opcode **opcode;
|
||||||
{
|
{
|
||||||
struct d10v_opcode *next_opcode;
|
|
||||||
unsigned char *op_start, *save;
|
unsigned char *op_start, *save;
|
||||||
unsigned char *op_end;
|
unsigned char *op_end;
|
||||||
char name[20];
|
char name[20];
|
||||||
int nlen = 0, i, match, numops;
|
int nlen = 0;
|
||||||
expressionS myops[6];
|
expressionS myops[6];
|
||||||
unsigned long insn;
|
unsigned long insn;
|
||||||
|
|
||||||
@ -853,52 +1006,75 @@ do_assemble (str, opcode)
|
|||||||
|
|
||||||
save = input_line_pointer;
|
save = input_line_pointer;
|
||||||
input_line_pointer = op_end;
|
input_line_pointer = op_end;
|
||||||
|
*opcode = find_opcode (*opcode, myops);
|
||||||
|
if (*opcode == 0)
|
||||||
|
return -1;
|
||||||
|
input_line_pointer = save;
|
||||||
|
|
||||||
|
insn = build_insn ((*opcode), myops, 0);
|
||||||
|
/* printf("sub-insn = %lx\n",insn); */
|
||||||
|
return (insn);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* find_opcode() gets a pointer to an entry in the opcode table. */
|
||||||
|
/* It must look at all opcodes with the same name and use the operands */
|
||||||
|
/* to choose the correct opcode. */
|
||||||
|
|
||||||
|
static struct d10v_opcode *
|
||||||
|
find_opcode (opcode, myops)
|
||||||
|
struct d10v_opcode *opcode;
|
||||||
|
expressionS myops[];
|
||||||
|
{
|
||||||
|
int i, match, done, numops;
|
||||||
|
struct d10v_opcode *next_opcode;
|
||||||
|
|
||||||
/* get all the operands and save them as expressions */
|
/* get all the operands and save them as expressions */
|
||||||
numops = get_operands (myops);
|
numops = get_operands (myops);
|
||||||
|
|
||||||
/* now see if the operand is a fake. If so, find the correct size */
|
/* now see if the operand is a fake. If so, find the correct size */
|
||||||
/* instruction, if possible */
|
/* instruction, if possible */
|
||||||
match = 0;
|
if (opcode->format == OPCODE_FAKE)
|
||||||
if ((*opcode)->format == OPCODE_FAKE)
|
|
||||||
{
|
{
|
||||||
int opnum = (*opcode)->operands[0];
|
int opnum = opcode->operands[0];
|
||||||
if (myops[opnum].X_op == O_constant)
|
|
||||||
|
if (myops[opnum].X_op == O_register)
|
||||||
{
|
{
|
||||||
next_opcode=(*opcode)+1;
|
myops[opnum].X_op = O_symbol;
|
||||||
for (i=0; (*opcode)->operands[i+1]; i++)
|
myops[opnum].X_add_symbol = symbol_find_or_make ((char *)myops[opnum].X_op_symbol);
|
||||||
|
myops[opnum].X_add_number = 0;
|
||||||
|
myops[opnum].X_op_symbol = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (myops[opnum].X_op == O_constant || S_IS_DEFINED(myops[opnum].X_add_symbol))
|
||||||
|
{
|
||||||
|
next_opcode=opcode+1;
|
||||||
|
for (i=0; opcode->operands[i+1]; i++)
|
||||||
{
|
{
|
||||||
int bits = d10v_operands[next_opcode->operands[opnum]].bits;
|
int bits = d10v_operands[next_opcode->operands[opnum]].bits;
|
||||||
int flags = d10v_operands[next_opcode->operands[opnum]].flags;
|
int flags = d10v_operands[next_opcode->operands[opnum]].flags;
|
||||||
if (!check_range (myops[opnum].X_add_number, bits, flags))
|
if (!check_range (myops[opnum].X_add_number, bits, flags))
|
||||||
{
|
return next_opcode;
|
||||||
match = 1;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
next_opcode++;
|
next_opcode++;
|
||||||
}
|
}
|
||||||
|
as_fatal ("value out of range");
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
/* not a constant, so use a long instruction */
|
/* not a constant, so use a long instruction */
|
||||||
next_opcode = (*opcode)+2;
|
return opcode+2;
|
||||||
match = 1;
|
|
||||||
}
|
}
|
||||||
if (match)
|
|
||||||
*opcode = next_opcode;
|
|
||||||
else
|
|
||||||
as_fatal ("value out of range");
|
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
|
match = 0;
|
||||||
/* now search the opcode table table for one with operands */
|
/* now search the opcode table table for one with operands */
|
||||||
/* that matches what we've got */
|
/* that matches what we've got */
|
||||||
while (!match)
|
while (!match)
|
||||||
{
|
{
|
||||||
match = 1;
|
match = 1;
|
||||||
for (i = 0; (*opcode)->operands[i]; i++)
|
for (i = 0; opcode->operands[i]; i++)
|
||||||
{
|
{
|
||||||
int flags = d10v_operands[(*opcode)->operands[i]].flags;
|
int flags = d10v_operands[opcode->operands[i]].flags;
|
||||||
int X_op = myops[i].X_op;
|
int X_op = myops[i].X_op;
|
||||||
int num = myops[i].X_add_number;
|
int num = myops[i].X_add_number;
|
||||||
|
|
||||||
@ -928,21 +1104,20 @@ do_assemble (str, opcode)
|
|||||||
{
|
{
|
||||||
match=0;
|
match=0;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* we're only done if the operands matched AND there
|
/* we're only done if the operands matched so far AND there
|
||||||
are no more to check */
|
are no more to check */
|
||||||
if (match && myops[i].X_op==0)
|
if (match && myops[i].X_op==0)
|
||||||
break;
|
break;
|
||||||
|
|
||||||
next_opcode = (*opcode)+1;
|
next_opcode = opcode+1;
|
||||||
if (next_opcode->opcode == 0)
|
if (next_opcode->opcode == 0)
|
||||||
break;
|
break;
|
||||||
if (strcmp(next_opcode->name, (*opcode)->name))
|
if (strcmp(next_opcode->name, opcode->name))
|
||||||
break;
|
break;
|
||||||
(*opcode) = next_opcode;
|
opcode = next_opcode;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -955,14 +1130,14 @@ do_assemble (str, opcode)
|
|||||||
/* Check that all registers that are required to be even are. */
|
/* Check that all registers that are required to be even are. */
|
||||||
/* Also, if any operands were marked as registers, but were really symbols */
|
/* Also, if any operands were marked as registers, but were really symbols */
|
||||||
/* fix that here. */
|
/* fix that here. */
|
||||||
for (i=0; (*opcode)->operands[i]; i++)
|
for (i=0; opcode->operands[i]; i++)
|
||||||
{
|
{
|
||||||
if ((d10v_operands[(*opcode)->operands[i]].flags & OPERAND_EVEN) &&
|
if ((d10v_operands[opcode->operands[i]].flags & OPERAND_EVEN) &&
|
||||||
(myops[i].X_add_number & 1))
|
(myops[i].X_add_number & 1))
|
||||||
as_fatal("Register number must be EVEN");
|
as_fatal("Register number must be EVEN");
|
||||||
if (myops[i].X_op == O_register)
|
if (myops[i].X_op == O_register)
|
||||||
{
|
{
|
||||||
if (!(d10v_operands[(*opcode)->operands[i]].flags & OPERAND_REG))
|
if (!(d10v_operands[opcode->operands[i]].flags & OPERAND_REG))
|
||||||
{
|
{
|
||||||
myops[i].X_op = O_symbol;
|
myops[i].X_op = O_symbol;
|
||||||
myops[i].X_add_symbol = symbol_find_or_make ((char *)myops[i].X_op_symbol);
|
myops[i].X_add_symbol = symbol_find_or_make ((char *)myops[i].X_op_symbol);
|
||||||
@ -971,18 +1146,9 @@ do_assemble (str, opcode)
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
return opcode;
|
||||||
input_line_pointer = save;
|
|
||||||
|
|
||||||
/* at this point, we have "opcode" pointing to the opcode entry in the
|
|
||||||
d10v opcode table, with myops filled out with the operands. */
|
|
||||||
insn = build_insn ((*opcode), myops, 0);
|
|
||||||
/* printf("sub-insn = %lx\n",insn); */
|
|
||||||
|
|
||||||
return (insn);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* if while processing a fixup, a reloc really needs to be created */
|
/* if while processing a fixup, a reloc really needs to be created */
|
||||||
/* then it is done here */
|
/* then it is done here */
|
||||||
|
|
||||||
@ -1021,8 +1187,10 @@ md_pcrel_from_section (fixp, sec)
|
|||||||
fixS *fixp;
|
fixS *fixp;
|
||||||
segT sec;
|
segT sec;
|
||||||
{
|
{
|
||||||
|
if (fixp->fx_addsy != (symbolS *)NULL && !S_IS_DEFINED (fixp->fx_addsy))
|
||||||
return 0;
|
return 0;
|
||||||
/* return fixp->fx_frag->fr_address + fixp->fx_where; */
|
/* printf("pcrel_from_section: %x\n", fixp->fx_frag->fr_address + fixp->fx_where); */
|
||||||
|
return fixp->fx_frag->fr_address + fixp->fx_where;
|
||||||
}
|
}
|
||||||
|
|
||||||
int
|
int
|
||||||
@ -1086,10 +1254,7 @@ md_apply_fix3 (fixp, valuep, seg)
|
|||||||
case BFD_RELOC_D10V_10_PCREL_L:
|
case BFD_RELOC_D10V_10_PCREL_L:
|
||||||
case BFD_RELOC_D10V_10_PCREL_R:
|
case BFD_RELOC_D10V_10_PCREL_R:
|
||||||
case BFD_RELOC_D10V_18_PCREL:
|
case BFD_RELOC_D10V_18_PCREL:
|
||||||
/* instruction addresses are always right-shifted by 2
|
/* instruction addresses are always right-shifted by 2 */
|
||||||
and pc-relative */
|
|
||||||
if (!fixp->fx_pcrel)
|
|
||||||
value -= fixp->fx_where;
|
|
||||||
value >>= 2;
|
value >>= 2;
|
||||||
break;
|
break;
|
||||||
case BFD_RELOC_32:
|
case BFD_RELOC_32:
|
||||||
|
Reference in New Issue
Block a user