Initial data commit

Task/Copy-a-string/8086-Assembly/copy-a-string-1.8086

@@ -0,0 +1,20 @@
+.model small
+.stack 1024
+
+.data
+
+myString byte "Hello World!",0    ; a null-terminated string
+
+myStruct word 0
+
+.code
+
+mov ax,@data
+mov ds,ax       ;load data segment into DS
+
+mov bx,offset myString   ;get the pointer to myString
+
+mov word ptr [ds:myStruct],bx
+
+mov ax,4C00h
+int 21h         ;quit program and return to DOS

Task/Copy-a-string/8086-Assembly/copy-a-string-2.8086

@@ -0,0 +1,28 @@
+.model small
+.stack 1024
+
+.data
+
+myString byte "Hello World!",0    ; a null-terminated string
+
+StringRam byte 256 dup (0)        ;256 null bytes
+
+.code
+
+mov ax,@data
+mov ds,ax       ;load data segment into DS
+mov es,ax       ;also load it into ES
+
+mov si,offset myString
+mov di,offset StringRam
+mov cx,12       ;length of myString
+cld             ;make MOVSB auto-increment rather than auto-decrement (I'm pretty sure DOS begins with
+                ;the direction flag cleared but just to be safe)
+
+rep movsb      ;copies 12 bytes from [ds:si] to [es:di]
+mov al,0       ;create a null terminator
+stosb          ;store at the end. (It's already there since we initialized StringRam to zeroes, but you may need to do this depending
+               ;on what was previously stored in StringRam, if you've copied a string there already.
+
+mov ax,4C00h
+int 21h         ;quit program and return to DOS