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| author | Mike Frysinger <vapier@gentoo.org> | 2012-08-30 06:10:28 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2012-08-30 06:10:28 +0000 |
| commit | 5a06d7c470e4dfd5f66ba9b6a93d9a77d4910e07 (patch) | |
| tree | 42c53ad4bd9a45129ab069a279615065547c9110 /sim/cr16/simops.c | |
| parent | 4881a75b8b097924cac2f6ee2d22de879111127a (diff) | |
| download | fsf-binutils-gdb-5a06d7c470e4dfd5f66ba9b6a93d9a77d4910e07.zip fsf-binutils-gdb-5a06d7c470e4dfd5f66ba9b6a93d9a77d4910e07.tar.gz fsf-binutils-gdb-5a06d7c470e4dfd5f66ba9b6a93d9a77d4910e07.tar.bz2 | |
sim: cr16: improve trap handling
Diffstat (limited to 'sim/cr16/simops.c')
| -rw-r--r-- | sim/cr16/simops.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/sim/cr16/simops.c b/sim/cr16/simops.c index f8fee8a..2e5e9eb 100644 --- a/sim/cr16/simops.c +++ b/sim/cr16/simops.c @@ -5059,6 +5059,8 @@ OP_14C_14 () void OP_C_C () { + uint32 tmp; + uint16 a; trace_input ("excp", OP_CONSTANT4, OP_VOID, OP_VOID); switch (OP[0]) { @@ -5465,9 +5467,24 @@ OP_C_C () #endif default: - cr16_callback->error (cr16_callback, "Unknown syscall %d", FUNC); + a = OP[0]; + switch (a) + { + case TRAP_BREAKPOINT: + State.exception = SIGTRAP; + tmp = (PC); + JMP(tmp); + trace_output_void (); + break; + case SIGTRAP: /* supervisor call ? */ + State.exception = SIG_CR16_EXIT; + trace_output_void (); + break; + default: + cr16_callback->error (cr16_callback, "Unknown syscall %d", FUNC); + break; + } } - if ((uint16) result == (uint16) -1) RETERR (cr16_callback->get_errno(cr16_callback)); else |