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9 - Miscellaneous Instructions

This final group are the instructions that don't fit neatly into any other category, which I suppose makes them a category all their own:

clrf t nop rbnk 0; rbnk 1; rbnk 2 rptr rN
Clear status bits using the t register value - all zero bits in the t register clear the corresponding bits in the status register, while zero bits in t leave the status bits unchanged. No operation. Select bank for future register operations. Set index value in RPTR (used for subsequent register indexing).
rti rts setf t trap
Return from interrupt. Return from subroutine. Set status bits using the t register value - all one bits in the t register set the corresponding bits in the status register, while zero bits in t leave the status bits unchanged. Enable software interrupt.


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