dosseg
.model small
.stack 100h
.data
i  dw 5
a dw 15
b dw -3
k dw 9
res dw ?
.code
mov ax, @data
mov ds, ax

mov ax, a
cmp ax, b
jg second

first: ;if(a<=b)
mov cx, i  ;i
add cx, 2  ;i+2
shl cx, 1   ;2(i+2)
add cx, i   ;2(i+2)+i
add cx, 2  ;3(i+2)

mov ax, cx ;3(i+2)
shl ax, 1      ;6(i+2)
sub ax, 22  ;6i-10
jmp final

second: ;if(a>b)
mov ax, i ;i
shl ax, 1   ;2i
shl ax, 1   ;4i
add ax, 3  ;4i+3
neg ax      ;-(4i+3)

mov cx, ax ;-(4i+3)
sub cx, i     ;-4i-3-i
sub cx, i     ;-5i-3-i
add cx, 7    ;-(6i-4)

final:
abs_1: neg ax
js abs_1 ;|i1|
cmp k, 0
jge abs_0

abs_2: neg cx
js abs_2 ;|i2|
add ax, cx ;|i1|+|i2|
jmp ex

abs_0:
cmp ax, 6
jle mnr ;if(|i1|<=6)
jmp ex
mnr: mov ax, 6
ex: mov res, ax
mov ah, 4ch
int 21h
end