In Mode $0$ of Timer $1$ for a delay of $1$ms what is the value to be loaded in TH$1?$

$20$

$74$

$28$

$227$

MOV TL$0,$ #$52$

MOV TH$0,$ #$76$H

SETB TR$0$

Back: JNB TF$0,$ Back

CLR TR$0$

CLR TF$0$

RET

In the above code, the timer in mode $1$ provides a delay of$?$

$38\mathrm{.}274$ms

$3\mathrm{.}8274$ms

$3827\mathrm{.}4$ms

$382\mathrm{.}74$ms

MOV TMOD, #$32$

MOV TH$1,$ #$05$

SETB TR$1$

Back: JNB TF$1,$ Back

CLR TR$1$

CLR TF$1$

RET

In the above code, the timer provides a delay of$?$

$272\mathrm{.}33\backslash$mu s

$2723\mathrm{.}3\backslash$mu s

$27\mathrm{.}233\backslash$mu s

$2\mathrm{.}7233\backslash$mu s

MOV SBUF, # $$A$$

Here: JNB TI$,$ Here

In the above code, after reset if TI $=1$ then what is the character in SBUF?

AA

A

Nil

AAA

Ldr r$0,[$r$1,$ r$2,$ LSL #$3]$ results to

r$0=*($r$1+$ r$2*8)$

r$0=$ r$1+$ r$2*3$

r$0=*($r$1+$ r$2*3)$

r$0=$ r$1+$ r$2*8$

Str r$0,[$r$1],$ #$4$ results to

r$1=$ r$0$ and r$1=$ r$1+4$

r$1=$ r$1+4$ and r$0=*$r$1$

r$1=$ r$1+4$ and $*$r$1=$ r$0$

$*$r$1=$ r$0$ and r$1=$ r$1+4$

Str r$0,[$r$1,$ #$4]!$ results to

r$1=$ r$1+4$ and r$1=$ r$0$

$*$r$0=$ r$1$ and r$1=$ r$1+4$

r$1=$ r$1+4$ and r$0=$ r$1$

r$1=$ r$1+4$ and $*$r$1=$ r$0$