4. (a) (i) Convert the following to their hexadecimal equivalents and illustrate the method by showing the calculations: 110110112, 4837310. (ii) Convert the following to their decimal equivalents again showing the method used: 101011002, 78AB16. (iii) Convert the following numbers to the BCD equivalents: 2910, 84710- (3 marks) (b) Describe the operation performed by each line in the assembly language program shown below. What function is performed by this program? (2 marks) START MOV BX, 01A0 MOV AH, 27 MOV AL, BD MARK MOV [BX], AL INC BX DEC AH JNZ MARK INT 20 (c) Explain the significance of the order of the INC and DEC instructions. Illustrate the operation of the flag register using three suitable instructions from the assembly listing in part (b) above. Rewrite this program using the LOOP instead of the JNZ instruction. (d) A certain compiler uses a 64-bit floating point format as shown below. (3 marks) 63 exponent 56 55 mantissa 0 The exponent is expressed as a power of 2 and is an 8-bit signed integer. The MSB of the mantissa gives the sign of the number. Estimate the range and resolution available with this system. (2 marks)