C/C++

					_COMPILER-SPECIFIC C EXTENSIONS_
by Al Stevens

Example 1: 

(a)
    _AX = 123;
    _ES = _DS;

(b)
    mov  ax,123
    push ds
    pop  es

(c)
    mov ax,123
    mov ax,ds
    mov es,ax

(d)
    _ES = _DS;
    _AX = 123;

Example 2:

    _AH = 0x48;             // Allocate memory function
    _BX = 10;               // # of paragraphs ...