Bit Operations

profilejav284
bit_operations.docx

· Answer the following questions:

a. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:FA 75

and ax, 000fh

AX, SF, ZF

b. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:FA 75

or ax, 0fff0h

AX, SF, ZF

c. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:FA 75

or ax, 0ffffh

AX, SF, ZF

d. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:A8 B5

shr ax, 1

AX, CF, OF  

e. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:A8 B5

ror ax, 1

AX, CF  

f. For each part of this problem, assume the “before” values when the given instruction is executed. Give the requested “after” values.

Before

Instruction

After

AX:A8 B5

CL:04

rol ax, cl

AX, CF