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[PATCH] sim: bfin: do not extend accumulator in LSHIFT insns
- From: Mike Frysinger <vapier at gentoo dot org>
- To: gdb-patches at sourceware dot org
- Cc: Robin Getz <robin dot getz at analog dot com>
- Date: Sat, 18 Jun 2011 17:58:05 -0400
- Subject: [PATCH] sim: bfin: do not extend accumulator in LSHIFT insns
From: Robin Getz <robin.getz@analog.com>
The logical shift insn does not sign extend before shifting, so
we shouldn't either.
Committed.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-06-18 Robin Getz <robin.getz@analog.com>
* bfin-sim.c (decode_dsp32shift_0): Use get_unextended_acc
rather than get_extended_acc in LSHIFT insns.
---
sim/bfin/bfin-sim.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/sim/bfin/bfin-sim.c b/sim/bfin/bfin-sim.c
index 20602b7..2c71f6c 100644
--- a/sim/bfin/bfin-sim.c
+++ b/sim/bfin/bfin-sim.c
@@ -5230,7 +5230,7 @@ decode_dsp32shift_0 (SIM_CPU *cpu, bu16 iw0, bu16 iw1)
HLs = !!HLs;
TRACE_INSN (cpu, "A%i = LSHIFT A%i BY R%i.L;", HLs, HLs, src0);
- val = get_extended_acc (cpu, HLs);
+ val = get_unextended_acc (cpu, HLs);
if (shft <= 0)
val = lshiftrt (cpu, val, -shft, 40);
--
1.7.5.3