Freescale Semiconductor MC68HC08KH12 User Manual
Page 46
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MC68HC(7)08KH12
—
Rev. 1.1
46
Freescale Semiconductor
During a subroutine call, the CPU uses two bytes of the stack to store
the return address. The stack pointer decrements during pushes and
increments during pulls.
NOTE:
Be careful when using nested subroutines. The CPU may overwrite data
in the RAM during a subroutine or during the interrupt stacking
operation.
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