I guess this was inspired by the 6809's PSHU/PSHS/PULU/PULS instructions, and indirectly, the VAX's PUSHR/POPR instructions. It's way out of place on a RISC but was a concession to practicality.
I guess this was inspired by the 6809's PSHU/PSHS/PULU/PULS instructions, and indirectly, the VAX's PUSHR/POPR instructions. It's way out of place on a RISC but was a concession to practicality.