2. For each of the instructions highlighted (boldface), derive the effective address of the memory variable...

 

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2. For each of the instructions highlighted (boldface), derive the effective address of the memory variable (source) if any memory variable is involved, and the contents of the register a or d (whichever one involved) right after the instruction is executed. Answer in hexadecimal. Assume that all of the bytes in the variables va, vb and vc are initially 0. RAMStart EQU ROMStart EQU $0900 $4000 ORG RAMStart va DS.B 1 vb DS.B 5 VC བོ DS.W 5 vd DC.B ve DC.W 1,10,$9C, "12" 2,20,$90A,$914, "3",$0, "00", "abc" ORG ROMStart Idaa #$34 ldd #$901 ldd $901 Idaa vb Idaa $913 ldx #ve Idaa 0,x Idaa 3,x ldx #vd Idaa 8,x+ Idaa 5,-x Idab #$0B Idaa b,x ldy #$912 Idaa ldd [7,y] #9 Idaa [d,y] rts 2. For each of the instructions highlighted (boldface), derive the effective address of the memory variable (source) if any memory variable is involved, and the contents of the register a or d (whichever one involved) right after the instruction is executed. Answer in hexadecimal. Assume that all of the bytes in the variables va, vb and vc are initially 0. RAMStart EQU ROMStart EQU $0900 $4000 ORG RAMStart va DS.B 1 vb DS.B 5 VC བོ DS.W 5 vd DC.B ve DC.W 1,10,$9C, "12" 2,20,$90A,$914, "3",$0, "00", "abc" ORG ROMStart Idaa #$34 ldd #$901 ldd $901 Idaa vb Idaa $913 ldx #ve Idaa 0,x Idaa 3,x ldx #vd Idaa 8,x+ Idaa 5,-x Idab #$0B Idaa b,x ldy #$912 Idaa ldd [7,y] #9 Idaa [d,y] rts

Answer rating: 100% (QA)

D 801 D value at memory 801 ADA value in vb 0 A value at location ... View the full answer