diff options
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; |