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| author | Per Bothner <per@bothner.com> | 1992-04-17 01:35:42 +0000 |
|---|---|---|
| committer | Per Bothner <per@bothner.com> | 1992-04-17 01:35:42 +0000 |
| commit | d453b386ac60cb219f5949da95cb99d1e22ad6b9 (patch) | |
| tree | aaf7cbe5c2c04731813654a84ae84ed90ba53c63 /gdb/rs6000-pinsn.c | |
| parent | c0532cf36ba83d86825b8647b892f4d3d090ba7c (diff) | |
| download | gdb-d453b386ac60cb219f5949da95cb99d1e22ad6b9.zip gdb-d453b386ac60cb219f5949da95cb99d1e22ad6b9.tar.gz gdb-d453b386ac60cb219f5949da95cb99d1e22ad6b9.tar.bz2 | |
* rs6000-pinsn.c: New version from IBM (Metin).
* m2-exp.y: Re-write string initializers ("<>" => {'<', '>'})
to avoid warnings from some compilers.
Diffstat (limited to 'gdb/rs6000-pinsn.c')
| -rw-r--r-- | gdb/rs6000-pinsn.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/gdb/rs6000-pinsn.c b/gdb/rs6000-pinsn.c index 6880370..03261e5 100644 --- a/gdb/rs6000-pinsn.c +++ b/gdb/rs6000-pinsn.c @@ -29,7 +29,7 @@ print_insn (memaddr, stream) CORE_ADDR memaddr; FILE *stream; { - int pop, eop; /* primary and extended opcodes */ + int pop, eop, probable_eop; /* primary and extended opcodes */ int min, max; int best = -1; /* found best opcode index */ int oldbest = -1; @@ -37,7 +37,6 @@ print_insn (memaddr, stream) read_memory (memaddr, &the_insn, sizeof (the_insn)); pop = (unsigned)(the_insn >> 26); - eop = ((the_insn) >> 1) & 0x3ff; min = 0, max = NOPCODES-1; while (min < max) { @@ -55,7 +54,7 @@ print_insn (memaddr, stream) min = best; else { - /* opcode matched, check extended opcode. */ + /* Opcode matched, check extended opcode. */ if (rs6k_ops [best].e_opcode == -1) { /* there is no valid extended opcode, what we've got is @@ -63,12 +62,18 @@ print_insn (memaddr, stream) goto insn_found; } - else if (eop < rs6k_ops [best].e_opcode) { + /* Largest possible value of extended opcode. */ + probable_eop = ((the_insn) >> 1) & 0x3ff; + + eop = probable_eop & eopMask [rs6k_ops [best].format]; + + if (eop < rs6k_ops [best].e_opcode) { while (pop == rs6k_ops [best].p_opcode) { if (eop == rs6k_ops [best].e_opcode) /* found it! */ goto insn_found; --best; + eop = probable_eop & eopMask [rs6k_ops [best].format]; } goto not_found; } @@ -79,6 +84,7 @@ print_insn (memaddr, stream) if (eop == rs6k_ops [best].e_opcode) /* found it! */ goto insn_found; ++best; + eop = probable_eop & eopMask [rs6k_ops [best].format]; } goto not_found; } |