r$2=$ r$3*105$ can be solved by following?

RSB r$1,$ r$3,$ r$3,$ LSL #$3$ and RSB r$2,$ r$1,$ r$1,$ LSL #$4$

RSB r$1,$ r$3,$ r$3,$ LSL #$4$ and RSB r$2,$ r$1,$ r$1,$ LSL #$3$

RSB r$2,$ r$2,$ r$3,$ LSL #$4$ and RSB r$3,$ r$2,$ r$3,$ LSL #$3$

RSB r$3,$ r$2,$ r$2,$ LSL #$4$ and RSB r$2,$ r$3,$ r$3,$ LSL #$3$

In mode $3$ of serial communication which timer controls the baud rate?

T$1$ in mode $2$

T$0$ in mode $1$

T$1$ in mode $1$

T$0$ in mode $0$

Find the time delay in secs $($Excluding overhead due to instructions in the loop$)$:

MOV TMOD, #$10$H

MOV R$3,$ #$200$

AGAIN: MOV TL$1,$ #$08$H

MOV TH$1,$ #$01$H

SETB TR$1$

BACK: JNB TF$1,$ BACK

CLR TR$1$

CLR TF$1$

DJNZ R$3,$ AGAIN

$14\mathrm{.}164024$msecs

$1\mathrm{.}4164024$secs

$1416\mathrm{.}4024\backslash$mu secs

None of the above

How the status of the carry, auxiliary carry and parity flags affected if we write the instruction?

MOV A$,$ #$9$C

ADD A$,$ #$64$H

CY$=0,$ AC$=1,$ P$=0$

CY$=0,$ AC$=0,$ P$=0$

CY$=1,$ AC$=1,$ P$=0$

CY$=1,$ AC$=1,$ P$=1$

Assuming $8051$ crystal frequency $11\mathrm{.}0952$MHz$,$ what values do we need to load in Timer $1$ registers, if we want to have a time delay $5$msecs?

TH$1=238,$ TL$1=0$H

TH$1=$ EEH, TL$1=01$H

TH$0=$ EEH, TL$0=0$H

TH$0=$ EEH, TL $=0$A

For the following piece of ALP in $8051($Not a complete code$),$ what is the Baud rate?

Org $0030$H

MAIN: MOV TMOD, #$20$H

MOV TH$1,$ #FAH

MOV SCON, #$50$H

SETB TR$1$

Baud Rate $=9600$H

Baud Rate $=4800$

Baud Rate $=9600$

Baud Rate $=4800$H

Assuming $8051$ crystal frequency $16$MHz and following specifications determine the delay generated by Timer $0$: Specifications: Timer Mode $0$ is selected, TL$0=62,$ TH$0=$ B$8$H

$19\mathrm{.}93145$mSec

$1\mathrm{.}993145$mSecs

None of the above

$19\mathrm{.}93145\backslash$mu Secs

If SP $=3$FH$,$ then at what memory location the SP is pointing to after the execution of the following command?

MOV R$0,$ #$32$H

MOV R$1,$ #$3$FH

MOV R$3,$ #$25$H

PUSH R$0$

PUSH R$1$

PUSH $0$E$0$H

POP R$3$

SP $=43$H

SP $=41$H

SP $=42$H

Invalid Syntax.