Question: Consider the following PIC18 demonstration code for user stack. cblock 0x0200 userstack: 0x80 RO R1 endc Main ORG 0x0000 MOVLW high RO XC) LFSR

Consider the following PIC18 demonstration code for user stack. cblock 0x0200 userstack: 0x80 RO R1 endc Main

Consider the following PIC18 demonstration code for user stack. cblock 0x0200 userstack: 0x80 RO R1 endc Main ORG 0x0000 MOVLW high RO XC) LFSR 0, userstack MOVLW 0x1F MOVWF RO MOVLW 0x2F MOVWF R1 MOVLW 0x3F MOVFF RO, MOVFF R1, MOVFF WREG, PREINCO MOVLW 0x71 MOVWF RO MOVWF R1 EXIT GOTO EXIT END PREINCO PREINCO MOVFF POSTDECO, WREG MOVFF POSTDECO, R1 MOVEF POSTDECO, RO (a) What is the starting address of this user stack? Show the contents of FSRO and RAM locations Ox201 to 0x203, when "MOVLW Ox71" is executing. What are the roles of the PIC18 hardware stack? (8 marks)

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