FINAL TERM EXAMINATION SPRING 2010
CS401 COMPUTER ARCHITECTURE AND ASSEMBLY LANGUAGE PROGRAMMING
9 AUG 2010
Question No: 1 ( M a r k s: 1 ) - Please choose one When a 32 bit number is divided by a 16 bit number, the quotient is of · 32 bits · 16 bits · 8 bits · 4 bits Question No: 2 ( M a r k s: 1 ) - Please choose one In the instruction MOV AX, 5 the number of operands are Question No: 3 ( M a r k s: 1 ) - Please choose one 3. In DOS input buffer , number of characters actually read on return is stored in · First byte · Second byte · Third byte · Fourth byte Question No: 4 ( M a r k s: 1 ) - Please choose one 7. VESA VEB 2.0 is standard for · High Resolution Mode · Low Resolution Mode · Very High Resolution Mode · Medium Resolution Mode Question No: 5 ( M a r k s: 1 ) - Please choose one 22. IN DB-9 connector the Data Set ready pin is at Question No: 6 ( M a r k s: 1 ) - Please choose one Threads can have function calls, parameters and variables. · global · local · legal · illegal Question No: 7 ( M a r k s: 1 ) - Please choose one How many prevalent calling conventions do exist Question No: 8 ( M a r k s: 1 ) - Please choose one In 9pin DB 9 DSR is assigned on pin number Question No: 9 ( M a r k s: 1 ) - Please choose one In 9pin DB 9 CTS is assigned on pin number Question No: 10 ( M a r k s: 1 ) - Please choose one In 9pin DB 9 CD is assigned on pin number Question No: 11 ( M a r k s: 1 ) - Please choose one A 32bit address register can access upto ............................of memory so memory access has increased a lot. · 2GB · 4GB · 6GB · 8GB Question No: 12 ( M a r k s: 1 ) - Please choose one in device attribute word which of the following bit decides whether it is a charater device or a block device · Bit 12 · Bit 13 · Bit 14 · Bit 15 Question No: 13 ( M a r k s: 1 ) - Please choose one 9. Which of the following IRQ is cascading interrupt · IRQ 0 · IRQ 1 · IRQ 2 · IRQ 3 Question No: 14 ( M a r k s: 1 ) - Please choose one Which of the following interrupts is used for Arithmetic overflow · INT 1 · INT 2 · INT 3 · INT 4 Question No: 15 ( M a r k s: 1 ) - Please choose one An End of Interrupt (EOI) signal is sent by · Handler · Processor · IRQ · PIC Question No: 16 ( M a r k s: 1 ) - Please choose one The number of pins in a parallel port connector are? Question No: 17 ( M a r k s: 1 ) - Please choose one Which of the following pins of a parallel port connector are grounded? · 10-18 · 18-25 · 25-32 · 32-39 Question No: 18 ( M a r k s: 1 ) - Please choose one A 32bit address register can access upto .......................... of memory so memory access has increased a lot. · 2GB · 4GB · 6GB · 8GB Question No: 19 ( M a r k s: 1 ) - Please choose one 9 Pin Serial connector is called · DB-7 · DB-9 · DB-25 · 9DB-5 Question No: 20 ( M a r k s: 1 ) - Please choose one In NASM an imported symbol is declared with the ............................ while and exported symbol is declared with the ............................ · Global directive, External directive · External directive, Global directive · Home Directive, Foreign Directive · Foreign Directive, Home Directive Question No: 21 ( M a r k s: 2 ) Write brief about INT 13 – Extended READ SERVICES Question No: 22 ( M a r k s: 2 ) What is Interrupt flag? Question No: 23 ( M a r k s: 3 ) Give the name of any two descriptors Question No: 24 ( M a r k s: 3 ) It is the part of Multitasking TSR caller, what will do these instructions comment against them (3) Mov al, [chars+bx] Mov [es:40],al Inc bx Question No: 25 ( M a r k s: 5 )
Write Data Movement and Arithmetic Instructions of Motorola 68 K Processor.
Question No: 26 ( M a r k s: 5 )
Write assembly program for “Break Interrupt Service Routine”