Question: 9-11. A computer with a register file, but without PUSH and POP instructions, is to be used to implement a stack. The computer does have

9-11. A computer with a register file, but without PUSH and POP instructions, is to be used to implement a stack. The computer does have the following register indirect addressing modes: Register indirect + increment: LD Rj Ri Ri- Ri+1 STRj Ri RiRi + 1 Decrement register indirect: LD Rj Ri ST Rj Ri MIRi R Show how these instructions can be used to provide the equivalent of PUSH and POP by using the instructions and register R6 as the stack pointer

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