The document contains assembly code for the 8086 architecture that implements a function to calculate the expression (a.b) + c. It includes a macro for a cursor positioning routine 'gotoxy' that communicates with BIOS interrupts to set the cursor position. The code is structured to support both DOS and Windows environments with appropriate calling conventions.

1. Write Assembly code (8086) that implements the function of (A.B) +C.
Solution
nclude macros.asm ; pull in defs of macros begcode gotoxy ; define start of code seg called
gotoxy ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; C++ interface routine, C linkage. ; Puts cursor at row, col. ;
Usage: ; void gotoxy(int row, int col); IFNDEF DOS386 public _gotoxy ; make gotoxy
global _gotoxy proc near ; define start of func push BP ; save old stack frame mov
BP,SP ; set BP to point to old BP mov DH,P[BP] ; DH = row mov DL,P[BP+2] ; DL
= col mov AH,2 ; BIOS function set cursor pos. xor BX,BX ; page 0 int 10h
; BIOS video interrupt pop BP ; restore old BP ret ; return to caller _gotoxy
endp ; define end of func ELSE public _gotoxy ; make gotoxy global _gotoxy proc near
; define start of func push EBP ; save old stack frame mov EBP,ESP ; set EBP to
point to old BP uses ; saves registers that are used mov DH,P[EBP] ; DH = row mov
DL,P[EBP 4] ; DL = col mov AH,2 ; BIOS function set cursor pos. xor EBX,EBX ;
page 0 int 10h ; BIOS video interrupt unuse ; note reverse order pop EBP ;
restore old EBP ret ; return to caller _gotoxy endp ; define end of func ENDIF
endcode gotoxy ;define end of code seg end