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| author | Martin Hunt <hunt@redhat.com> | 1996-07-31 18:50:12 +0000 |
|---|---|---|
| committer | Martin Hunt <hunt@redhat.com> | 1996-07-31 18:50:12 +0000 |
| commit | f8508db7d62279f5a727997780eb009caf7d91ad (patch) | |
| tree | ddf4f9cbd3f26a77ccbe16a65c632984ee412ab5 /gas | |
| parent | 37e05f6443e0fe873f49c437f64b86e7d6d3caf5 (diff) | |
| download | gdb-f8508db7d62279f5a727997780eb009caf7d91ad.zip gdb-f8508db7d62279f5a727997780eb009caf7d91ad.tar.gz gdb-f8508db7d62279f5a727997780eb009caf7d91ad.tar.bz2 | |
Wed Jul 31 11:45:15 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
* tc-d10v.c: Fixed bugs in short relocs and range checking.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/config/tc-d10v.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/gas/config/tc-d10v.c b/gas/config/tc-d10v.c index 674bbd4..c8ee06c 100644 --- a/gas/config/tc-d10v.c +++ b/gas/config/tc-d10v.c @@ -152,7 +152,7 @@ check_range (num, bits, flags) int bits; int flags; { - long min, max; + long min, max, bit1; int retval=0; if (flags & OPERAND_SHIFT) @@ -167,7 +167,14 @@ check_range (num, bits, flags) if (flags & OPERAND_SIGNED) { - max = (1 << (bits - 1)) - 1; + bit1 = (1 << (bits - 1)); + max = bit1 -1; + if (num & max) + { + /* sign-extend */ + num = ((num & (bit1 | max))^(~max))+bit1; + } + min = - (1 << (bits - 1)); if (((long)num > max) || ((long)num < min)) retval = 1; @@ -553,7 +560,9 @@ write_1_short (opcode, insn, fx) number_to_chars_bigendian (f, insn, 4); for (i=0; i < fx->fc; i++) { - if (get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].reloc])) + bfd_reloc_code_real_type reloc; + reloc = get_reloc((struct d10v_operand *)&d10v_operands[fx->fix[i].reloc]); + if (reloc) { /* printf("fix_new_exp: where:%x size:4\n ",f - frag_now->fr_literal); @@ -561,6 +570,10 @@ write_1_short (opcode, insn, fx) printf("\n"); */ + /* if it's an R reloc, we may have to switch it to L */ + if ( (reloc == BFD_RELOC_D10V_10_PCREL_R) && (opcode->unit != IU) ) + fx->fix[i].reloc |= 1024; + fix_new_exp (frag_now, f - frag_now->fr_literal, 4, @@ -624,6 +637,7 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx) as_fatal ("Two IU instructions may not be executed in parallel"); as_warn ("Swapping instruction order"); insn = FM00 | (insn2 << 15) | insn1; + fx = fx->next; } else if (opcode2->unit == MU) { @@ -631,6 +645,7 @@ write_2_short (opcode1, insn1, opcode2, insn2, exec_type, fx) as_fatal ("Two MU instructions may not be executed in parallel"); as_warn ("Swapping instruction order"); insn = FM00 | (insn2 << 15) | insn1; + fx = fx->next; } else insn = FM00 | (insn1 << 15) | insn2; |