Question

Supposetheregisters4and5containthebit patterns 3C and C8, respectively. What bit pattern is left in register 0 after executing each of the following instructions:

5045

7045

8045

9045

Answer 1

Thank You for the Question

5045 = This indicates that values of registers 4 and 5 are added as two's complements and the result is stored in Register 0. The result of Register 0 after this operation is :

00111010

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= 00000010 with overflow = 1

Hence, the hexadecimal result stored in Register 0 is 02

7045 = This indicates that values of registers 4 and 5 are added as two floating point values and the result stored in register 0. The value of Register 4 = 3A is 01.

8 RST AND the bit patterns in registers 4 and 5 and place the result in register R.

8045 would cause the result of ANDing the contents of registers 4 and 5 to be placed in register 0.

9 RST EXCLUSIVE OR the bit patterns in registers 4 and 5 and place the result in register.

#NOTE

This Question is solved point to point precisely and if any query please let me know in the comment section.