diff options
| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-06-26 08:35:18 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-06-26 08:35:18 +0000 |
| commit | 88fe8a41f2abbee28948626a4e6426d17f0498bf (patch) | |
| tree | a0cc7663595696979a4203af8153df8f6b694761 | |
| parent | b3ceef24f4fee8d5ed96b8c4a5d3e80c0a651f0b (diff) | |
DR6 single step exception status bit, by Juergen Keil.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3024 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | target-i386/exec.h | 1 | ||||
| -rw-r--r-- | target-i386/helper.c | 6 | ||||
| -rw-r--r-- | target-i386/op.c | 5 | ||||
| -rw-r--r-- | target-i386/translate.c | 2 |
4 files changed, 13 insertions, 1 deletions
diff --git a/target-i386/exec.h b/target-i386/exec.h index f6d05e0358..f48462aaa1 100644 --- a/target-i386/exec.h +++ b/target-i386/exec.h @@ -190,6 +190,7 @@ void helper_divq_EAX_T0(void); void helper_idivq_EAX_T0(void); void helper_bswapq_T0(void); void helper_cmpxchg8b(void); +void helper_single_step(void); void helper_cpuid(void); void helper_enter_level(int level, int data32); void helper_enter64_level(int level, int data64); diff --git a/target-i386/helper.c b/target-i386/helper.c index 951fdc5732..3c051b9ea3 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -1622,6 +1622,12 @@ void helper_cmpxchg8b(void) CC_SRC = eflags; } +void helper_single_step() +{ + env->dr[6] |= 0x4000; + raise_exception(EXCP01_SSTP); +} + void helper_cpuid(void) { uint32_t index; diff --git a/target-i386/op.c b/target-i386/op.c index a8cfce271b..ea8aec6b51 100644 --- a/target-i386/op.c +++ b/target-i386/op.c @@ -730,6 +730,11 @@ void OPPROTO op_cmpxchg8b(void) helper_cmpxchg8b(); } +void OPPROTO op_single_step(void) +{ + helper_single_step(); +} + void OPPROTO op_movl_T0_0(void) { T0 = 0; diff --git a/target-i386/translate.c b/target-i386/translate.c index 393db0d65e..15bfef5cbf 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -2277,7 +2277,7 @@ static void gen_eob(DisasContext *s) if (s->singlestep_enabled) { gen_op_debug(); } else if (s->tf) { - gen_op_raise_exception(EXCP01_SSTP); + gen_op_single_step(); } else { gen_op_movl_T0_0(); gen_op_exit_tb(); |