Write a machine language program to add the four numbers $2,-6,7$

and $-1.$ Then multiply the sum by $4$ and output the result on the output

device. Store $-6$ and $-1$ in hexadecimal. Do not use the subtract, negate

or invert instructions. $($My main struggle is I dont know how to store $-6$ and $-1$ into hexadecimal this is the work I did so far and the output is correct but I need to store $-6$ and $-1$ into hexadecimal$)$ LDWA $2,$ i

ADDA $-6,$ i

ADDA $7,$ i

ADDA $-1,$ i

ASLA

ASLA

STWA $0x0100,d$

DECO $0x0100,$ d

Stop

$.$end

Source Code $-$ untitled.pep$*$

Source Code $-$ untitled.pep$*$

C

Accumulator

$8$

$0$

Index Register

longrightarrow

Program Counter

Instruction Specifier

$00000000$

stop

Operand Specifier

$($Operand$)$

Input

Input

Object Code $-$ untitled.pepo

Assembler Listing $-$ untitled.pepl