I have this program that draws a circle but I need it in .model small.

.MODEL TINY

.286

.CODE ORG 100h Start: mov ax,13h int 10h ;mode 13h push 0a000h pop es ;es in video segment mov dx,160 ;Xc mov di,100 ;Yc mov al,04h ;Colour mov bx,50 ;Radius call Circle ;Draw circle mov ah,0 int 16h ;Wait for key mov ax,3 int 10h ;Mode 3 mov ah,4ch int 21h ;Terminate

;*** Circle ; dx= x coordinate center ; di= y coordinate center ; bx= radius ; al= colour

Circle: mov bp,0 ;X coordinate mov si,bx ;Y coordinate c00: call _8pixels ;Set 8 pixels sub bx,bp ;D=D-X inc bp ;X+1 sub bx,bp ;D=D-(2x+1) jg c01 ;>> no step for Y add bx,si ;D=D+Y dec si ;Y-1 add bx,si ;D=D+(2Y-1) c01: cmp si,bp ;Check X>Y jae c00 ;>> Need more pixels ret

_8pixels: call _4pixels ;4 pixels _4pixels: xchg bp,si ;Swap x and y call _2pixels ;2 pixels _2pixels: neg si push di add di,si imul di,320 add di,dx mov es:[di+bp],al sub di,bp stosb pop di ret

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