For the given content of registers and RAM, give the value of the instruction argument $($for example in operation LOAD$).$ All registers and

memory locations are $16-$bit. The opcode is $3$ bits, then the addressing mode code $(2$b$)$ and the register number, then the scale $(2$ bits$)$ and

the index register number $($only the first $4$ registers$),$ the rest is the direct argument in U$2.$ The addressing mode code means:

$11$ register $+$ index mode with scale $+$ direct argument

$10-$ relative $+$ index mode with scale $+$ displacement

$01-$ relative $+$ index mode with scale $+$ displacement $+$ indirect

$00-$ relative $+$ index mode with scale $+$ displacement $+$ double indirect

The scale is given as a power of $2.$

Values in the tables are given in hexadecimal.

Specify the value of the instruction's effective operand in decimal form.

register R$0$ R$1$ R$2$ R$3$ R$4$ R$5$ R$6$ SPR$7$ PC

content $12345678$

IR content: #B$163$

RAM $-$ address #$00$ #$01$ #$02$ #$03$ #$04$ #$05$ #$06$ #$07$ #$08$ #$09$ #$0$A #$0$B #$0$C #$0$D #$0$E #$0$F

content #$1$F #$1$E #$1$D #$1$C #$1$B #$1$A #$19$ #$18$ #$17$ #$16$ #$15$ #$14$ #$13$ #$12$ #$11$ #$10$

RAM $-$ address #$10$ #$11$ #$12$ #$13$ #$14$ #$15$ #$16$ #$17$ #$18$ #$19$ #$1$A #$1$B #$1$C #$1$D #$1$E #$1$F

content #$0$F #$0$E #$0$D #$0$C #$0$B #$0$A #$09$ #$08$ #$07$ #$06$ #$05$ #$04$ #$03$ #$02$ #$01$ #$00$