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| author | Nick Clifton <nickc@redhat.com> | 2004-05-28 07:55:21 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2004-05-28 07:55:21 +0000 |
| commit | 580b9172d22e2bb4fb7900000bc9897e04b295e0 (patch) | |
| tree | 411fb804b5cd618d41d682c4160a9c8f402d86f6 /gas/config | |
| parent | 164e712d71c3e73cf048b45615b8f3f2f1fc4b84 (diff) | |
| download | gdb-580b9172d22e2bb4fb7900000bc9897e04b295e0.zip gdb-580b9172d22e2bb4fb7900000bc9897e04b295e0.tar.gz gdb-580b9172d22e2bb4fb7900000bc9897e04b295e0.tar.bz2 | |
Convert mode 5 addressing with zero offset into mode 2 addressing to save a
word.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-m68k.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c index 2a5b479..69be532 100644 --- a/gas/config/tc-m68k.c +++ b/gas/config/tc-m68k.c @@ -2261,6 +2261,19 @@ m68k_ip (instring) nextword = get_num (&opP->disp, 90); + /* Convert mode 5 addressing with a zero offset into + mode 2 addressing to reduce the instruction size by a + word. */ + if (! isvar (&opP->disp) + && (nextword == 0) + && (opP->disp.size == SIZE_UNSPEC) + && (opP->reg >= ADDR0) + && (opP->reg <= ADDR7)) + { + tmpreg = 0x10 + opP->reg - ADDR; /* 2.areg */ + break; + } + if (opP->reg == PC && ! isvar (&opP->disp) && m68k_abspcadd) |