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authorDominik Vogt <vogt@linux.vnet.ibm.com>2015-12-15 14:09:14 +0100
committerAndreas Arnez <arnez@linux.vnet.ibm.com>2015-12-15 14:09:14 +0100
commit1d19cae752a7b032b8253feb4fa3b9f1dc162823 (patch)
treefcd5b5f015c8f9dc4e541049369e89e52ab6c8ba /sim/avr
parent08832196accd270fa053e8125c21e7a54ab19fe0 (diff)
downloadbinutils-gdb-1d19cae752a7b032b8253feb4fa3b9f1dc162823.tar.gz
Fix invalid left shift of negative value
Fix occurrences of left-shifting negative constants in C code. sim/arm/ChangeLog: * thumbemu.c (handle_T2_insn): Fix left shift of negative value. * armemu.c (handle_v6_insn): Likewise. sim/avr/ChangeLog: * interp.c (sign_ext): Fix left shift of negative value. sim/mips/ChangeLog: * micromips.igen (process_isa_mode): Fix left shift of negative value. sim/msp430/ChangeLog: * msp430-sim.c (get_op, put_op): Fix left shift of negative value. sim/v850/ChangeLog: * simops.c (v850_bins): Fix left shift of negative value.
Diffstat (limited to 'sim/avr')
-rw-r--r--sim/avr/ChangeLog4
-rw-r--r--sim/avr/interp.c2
2 files changed, 5 insertions, 1 deletions
diff --git a/sim/avr/ChangeLog b/sim/avr/ChangeLog
index e72bcf44de7..6bc7b7dcaf0 100644
--- a/sim/avr/ChangeLog
+++ b/sim/avr/ChangeLog
@@ -1,3 +1,7 @@
+2015-12-15 Dominik Vogt <vogt@linux.vnet.ibm.com>
+
+ * interp.c (sign_ext): Fix left shift of negative value.
+
2015-11-21 Mike Frysinger <vapier@gentoo.org>
* interp.c (pc, cycles, avr_pc22): Delete.
diff --git a/sim/avr/interp.c b/sim/avr/interp.c
index ca504740135..7ea56fa97f4 100644
--- a/sim/avr/interp.c
+++ b/sim/avr/interp.c
@@ -222,7 +222,7 @@ static byte sram[MAX_AVR_SRAM];
static int sign_ext (word val, int nb_bits)
{
if (val & (1 << (nb_bits - 1)))
- return val | (-1 << nb_bits);
+ return val | -(1 << nb_bits);
return val;
}