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Free Exam: quiz1a

Number of Questions in Test: 4

Note: Answers are not shown below but will be copied with this test.

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Question 1

Cual de los siguientes grupos de microinstrucciones hace la suma de lo apuntado por el contenido del registro SP con el contenido del registro OPC, y a la vez, almacena el resultado en la dirección de memoria apuntada por el valor almacenado en LV.

Type: Multiple choice
Points: 2
Randomize answers: Yes

Question 2

Al finalizar la ejecución del siguiente microcódigo, cual es el contenido de la palabra 2 (se cuenta desde la palabra 0)

MAR = SP = 0
MDR = -1; wr
MAR = SP = SP + 1
MDR = MDR << 8; wr
MAR = SP = SP + 1
MDR = MDR + 1 << 8; wr

PC = H = 1
PC = H = H +PC + 1
PC = H + PC + 1
PC = PC + 1; fetch
PC = PC + 1; fetch
H = MBR << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
H = MBRU OR H

Type: Multiple choice
Points: 1
Randomize answers: Yes

Question 3

Dado el mismo código de la pregunta anterior, responda cual es el valor que toma el registro H al finalizar su ejecución

MAR = SP = 0
MDR = -1; wr
MAR = SP = SP + 1
MDR = MDR << 8; wr
MAR = SP = SP + 1
MDR = MDR + 1 << 8; wr

PC = H = 1
PC = H = H +PC + 1
PC = H + PC + 1
PC = PC + 1; fetch
PC = PC + 1; fetch
H = MBR << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
H = MBRU OR H

Type: Multiple choice
Points: 1
Randomize answers: Yes

Question 4

Dado el mismo código de la pregunta anterior, responda cual es el valor que toma el registro MDR al finalizar su ejecución

MAR = SP = 0
MDR = -1; wr
MAR = SP = SP + 1
MDR = MDR << 8; wr
MAR = SP = SP + 1
MDR = MDR + 1 << 8; wr

PC = H = 1
PC = H = H +PC + 1
PC = H + PC + 1
PC = PC + 1; fetch
PC = PC + 1; fetch
H = MBR << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
PC = PC + 1; fetch
H = MBRU OR H << 8
H = MBRU OR H

Type: Multiple choice
Points: 1
Randomize answers: Yes

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