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(1) Show how value of ACC changes as each instruction is executed. (38pts.) (A) (6pts) (B) (6pts) (C) (6pts) (D) (6pts) MOV A, #25H MOV
(1) Show how value of ACC changes as each instruction is executed. (38pts.) (A) (6pts) (B) (6pts) (C) (6pts) (D) (6pts) MOV A, #25H MOV A, #57H SETBC MOV A, #89H CPL A ANL A, #OCDH MOV A, #7AH CPL ACC.1 RLC A SETB ACC.6 (E) (Opts) MOV A, #063H RRA (F) (8pts) MOV RO, #52H MOV ACC, #56H MOV @RO, A ADD A, 52H Present the answers in hex in the following manner: (ACC)=33, 0B0, QB (2) Show how the values of ACC, CY, OV and P change when each of the following is executed. Use "X" for one bit, or "XX" for 8-bit, if the value is undefined. (27pts.) (A) MOV A, #OEBH (B) MOV A, #58H (C) SETBC ADD A, #0B6H ADD A, #6AH MOV A, #3DH SUBB A, #0 (ACC)= (ACC)= 1 (ACC)= (CY)= (CY)= (CY)= 1 (OV)= 1 (OV)= (OV)= | (P) (P)= 1 (P)= |
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