// Start
_startup
Reset_vector Undef_vector SWI_vector PAbor_vector DAbort_vector IRQ_vector FIQ_vector
// Handlers
ResetHandler UndefHandler SWIHandler PAbortHandler DAbortHandler IRQHandler FIQHandler
// Turn interrupts off
CPU_SR_Save
// Turn interrupts back on
CPU_SR_Restore
// Start highest priority ready task
OSStartHighRdy
// Context Switch
OSCtxSw
// Interrupt Context Switch
OSIntCtxSw