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| author | Andreas Krebbel <Andreas.Krebbel@de.ibm.com> | 2010-09-27 13:33:00 +0000 |
|---|---|---|
| committer | Andreas Krebbel <Andreas.Krebbel@de.ibm.com> | 2010-09-27 13:33:00 +0000 |
| commit | 02cbf7671a314a663a5abbb606d2ee73cb795bb9 (patch) | |
| tree | bfb61572e44a509673e3057beb8ef916abb2cfda /opcodes/s390-dis.c | |
| parent | 6844b2c2db8ce07c7f000d9bd132d6b9b83709b8 (diff) | |
| download | gdb-02cbf7671a314a663a5abbb606d2ee73cb795bb9.zip gdb-02cbf7671a314a663a5abbb606d2ee73cb795bb9.tar.gz gdb-02cbf7671a314a663a5abbb606d2ee73cb795bb9.tar.bz2 | |
2010-09-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* s390-dis.c (print_insn_s390): Pick instruction with most
specific mask.
* s390-opc.c: Add unused bits to the insn mask.
* s390-opc.txt: Reorder some instructions to prefer more recent
versions.
2010-09-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* gas/s390/esa-g5.d: Adjust serveral instructions.
* gas/s390/esa-reloc.d: Likewise.
* gas/s390/esa-z990.d: Likewise.
* gas/s390/zarch-reloc.d: Likewise.
* gas/s390/zarch-z10.d: Likewise.
* gas/s390/zarch-z9-ec.d: Likewise.
* gas/s390/zarch-z900.d: Likewise.
2010-09-27 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* ld-s390/tlsbin.dd: bcr 0,%r7 -> nopr %r7.
* ld-s390/tlsbin_64.dd: Likewise.
* ld-s390/tlspic.dd: Likewise.
* ld-s390/tlspic_64.dd: Likewise.
Diffstat (limited to 'opcodes/s390-dis.c')
| -rw-r--r-- | opcodes/s390-dis.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/opcodes/s390-dis.c b/opcodes/s390-dis.c index b9eeb79..37ed2e7 100644 --- a/opcodes/s390-dis.c +++ b/opcodes/s390-dis.c @@ -166,6 +166,8 @@ print_insn_s390 (bfd_vma memaddr, struct disassemble_info *info) if (status == 0) { + const struct s390_opcode *op; + /* Find the first match in the opcode table. */ opcode_end = s390_opcodes + s390_num_opcodes; for (opcode = s390_opcodes + opc_index[(int) buffer[0]]; @@ -178,6 +180,7 @@ print_insn_s390 (bfd_vma memaddr, struct disassemble_info *info) /* Check architecture. */ if (!(opcode->modes & current_arch_mask)) continue; + /* Check signature of the opcode. */ if ((buffer[1] & opcode->mask[1]) != opcode->opcode[1] || (buffer[2] & opcode->mask[2]) != opcode->opcode[2] @@ -186,6 +189,28 @@ print_insn_s390 (bfd_vma memaddr, struct disassemble_info *info) || (buffer[5] & opcode->mask[5]) != opcode->opcode[5]) continue; + /* Advance to an opcode with a more specific mask. */ + for (op = opcode + 1; op < opcode_end; op++) + { + if ((buffer[0] & op->mask[0]) != op->opcode[0]) + break; + + if ((buffer[1] & op->mask[1]) != op->opcode[1] + || (buffer[2] & op->mask[2]) != op->opcode[2] + || (buffer[3] & op->mask[3]) != op->opcode[3] + || (buffer[4] & op->mask[4]) != op->opcode[4] + || (buffer[5] & op->mask[5]) != op->opcode[5]) + continue; + + if (((int)opcode->mask[0] + opcode->mask[1] + + opcode->mask[2] + opcode->mask[3] + + opcode->mask[4] + opcode->mask[5]) < + ((int)op->mask[0] + op->mask[1] + + op->mask[2] + op->mask[3] + + op->mask[4] + op->mask[5])) + opcode = op; + } + /* The instruction is valid. */ if (opcode->operands[0] != 0) (*info->fprintf_func) (info->stream, "%s\t", opcode->name); |