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| author | DJ Delorie <dj@redhat.com> | 2014-05-12 19:05:19 -0400 |
|---|---|---|
| committer | DJ Delorie <dj@redhat.com> | 2014-05-12 19:05:19 -0400 |
| commit | a7da346e5c9dd33f4fdc9b053d1991131a911926 (patch) | |
| tree | 81950bdfdf49a2a11081c842c12f842ee7f8ecf3 /sim/msp430 | |
| parent | 17b609c3fc8f78852655096a1be04fdd2ba3809c (diff) | |
| download | gdb-a7da346e5c9dd33f4fdc9b053d1991131a911926.zip gdb-a7da346e5c9dd33f4fdc9b053d1991131a911926.tar.gz gdb-a7da346e5c9dd33f4fdc9b053d1991131a911926.tar.bz2 | |
Support 32->64 sign extension in msp430's sign_ext
* msp43-sim.c (sign_ext): Change to "long long" to support
sign-extending 32-bit values.
Diffstat (limited to 'sim/msp430')
| -rw-r--r-- | sim/msp430/ChangeLog | 5 | ||||
| -rw-r--r-- | sim/msp430/msp430-sim.c | 8 |
2 files changed, 9 insertions, 4 deletions
diff --git a/sim/msp430/ChangeLog b/sim/msp430/ChangeLog index 4b76a03..77ea380 100644 --- a/sim/msp430/ChangeLog +++ b/sim/msp430/ChangeLog @@ -1,3 +1,8 @@ +2014-05-12 DJ Delorie <dj@redhat.com> + + * msp43-sim.c (sign_ext): Change to "long long" to support + sign-extending 32-bit values. + 2014-05-08 Nick Clifton <nickc@redhat.com> * msp430-sim.c (sim_open): Do not allocate memory over the diff --git a/sim/msp430/msp430-sim.c b/sim/msp430/msp430-sim.c index 693fdee..2dcbae3 100644 --- a/sim/msp430/msp430-sim.c +++ b/sim/msp430/msp430-sim.c @@ -337,11 +337,11 @@ zero_ext (unsigned int v, unsigned int bits) return v; } -static signed int -sign_ext (signed int v, unsigned int bits) +static signed long long +sign_ext (signed long long v, unsigned int bits) { - int sb = 1 << (bits-1); /* Sign bit. */ - int mb = (1 << (bits-1)) - 1; /* Mantissa bits. */ + signed long long sb = 1LL << (bits-1); /* Sign bit. */ + signed long long mb = (1LL << (bits-1)) - 1LL; /* Mantissa bits. */ if (v & sb) v = v | ~mb; |