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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-17 22:33:49 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-03-17 22:33:49 +0000 |
| commit | fd5f3bf64dd35754e44942f99352d70fc71ae73b (patch) | |
| tree | a6c358055f5af4656b1e85849c75a9279323c25a /nuttx/arch/x86/src/i486/up_initialstate.c | |
| parent | c986d73e782c6b7f59c8d79185d845f16d5f6034 (diff) | |
| download | px4-nuttx-fd5f3bf64dd35754e44942f99352d70fc71ae73b.tar.gz px4-nuttx-fd5f3bf64dd35754e44942f99352d70fc71ae73b.tar.bz2 px4-nuttx-fd5f3bf64dd35754e44942f99352d70fc71ae73b.zip | |
Fix QEMU timer interrupt handler
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3389 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/x86/src/i486/up_initialstate.c')
| -rw-r--r-- | nuttx/arch/x86/src/i486/up_initialstate.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nuttx/arch/x86/src/i486/up_initialstate.c b/nuttx/arch/x86/src/i486/up_initialstate.c index 1a13b8991..9ca40feb3 100644 --- a/nuttx/arch/x86/src/i486/up_initialstate.c +++ b/nuttx/arch/x86/src/i486/up_initialstate.c @@ -85,7 +85,10 @@ void up_initial_state(_TCB *tcb) memset(xcp, 0, sizeof(struct xcptcontext)); - /* Save the initial stack pointer */ + /* Save the initial stack pointer... the value of the stackpointer before + * the "interrupt occurs." We don't know the value of REG_ESP yet.. + * that depends on if a priority change is required or not. + */ xcp->regs[REG_SP] = (uint32_t)tcb->adj_stack_ptr; |