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| author | John Darrington <john@darrington.wattle.id.au> | 2019-01-16 14:34:50 +0100 |
|---|---|---|
| committer | John Darrington <john@darrington.wattle.id.au> | 2019-01-16 14:40:21 +0100 |
| commit | 77fdb0e00bd47c564c4e32726fc6020d9441d4a7 (patch) | |
| tree | f399a328c97f914c0223183504b2263c33638827 /gas | |
| parent | d5dcaf1b59e77047e10a1f246095d6b21f7d9772 (diff) | |
| download | gdb-77fdb0e00bd47c564c4e32726fc6020d9441d4a7.zip gdb-77fdb0e00bd47c564c4e32726fc6020d9441d4a7.tar.gz gdb-77fdb0e00bd47c564c4e32726fc6020d9441d4a7.tar.bz2 | |
S12Z: gas: Permit "extend" instructions which don't actually extend.
Other assemblers permit "extending" a register into a register of a
smaller size or the same size. It doesn't make much sense to do this
but would appear to be a valid instruction. So change the error to a
warning.
gas/
* config/tc-s12z.c (tfr): Change as_bad to as_warn.
Also fix message typo and semantics.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 2 | ||||
| -rw-r--r-- | gas/config/tc-s12z.c | 15 |
2 files changed, 7 insertions, 10 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 986af84..6b852c2 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,7 @@ 2019-01-16 John Darrington <john@darrington.wattle.id.au> + * config/tc-s12z.c (tfr): Change as_bad to as_warn. + Also fix message typo and semantics. * config/tc-s12z.c (emit_opr): Emit BFD_RELOC_S12Z_OPR instead of BFD_RELOC_24. * testsuite/gas/s12z/opr-indirect-expr.d: Expect R_S12Z_OPR instead diff --git a/gas/config/tc-s12z.c b/gas/config/tc-s12z.c index 7d1ddf6..f6c5889 100644 --- a/gas/config/tc-s12z.c +++ b/gas/config/tc-s12z.c @@ -1316,16 +1316,11 @@ tfr (const struct instruction *insn) if (!lex_reg_name (~0, ®2)) goto fail; - if ((0 == strcasecmp ("sex", insn->name)) - || (0 == strcasecmp ("zex", insn->name))) - { - if (registers[reg1].bytes >= registers[reg2].bytes) - { - as_bad (_("Source register for %s must be smaller that the destination register"), - insn->name); - goto fail; - } - } + if ( ((0 == strcasecmp ("sex", insn->name)) + || (0 == strcasecmp ("zex", insn->name))) + && (registers[reg2].bytes <= registers[reg1].bytes)) + as_warn (_("Source register for %s is no larger than the destination register"), + insn->name); char *f = s12z_new_insn (1 + insn->page); if (insn->page == 2) |