tic tac toe complete

asm/DosBox/.gitignore

@@ -5,4 +5,6 @@ DosBox.exe
 SDL.dll
 SDL_Net.dll
 asciitable.gif
-DOSBox 0.74-3 Options.bat
+DOSBox 0.74-3 Options.bat
+stderr.txt
+stdout.txt

asm/DosBox/library2.asm

@@ -0,0 +1,62 @@
+
+	;org 0x0100
+	
+	;mov ax,0x0100
+	;call display_number 
+	;int 0x20
+	
+; --------------
+	int 0x20	
+	; Display letter contained in AL (ASCII)
+display_letter:
+	push ax
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x0e		; Load AH with code for terminal output
+	mov bx,0x000f	; Load BH page zero adn BL color (graphic mode)
+	int 0x10		; Call the BIOS for displaying one letter
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	pop ax
+	ret				; Returns to caller
+	
+	; Read keyboard into AL (ASCII)
+read_keyboard:
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x00		; Load AH with code for keyboard read
+	int 0x16		; Call the BIOS for reading keyboard
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	ret				; Returns to caller
+
+	;
+	; Display the value of AX as a decimal number
+	;
+display_number:
+	mov dx,0
+	mov cx,10
+	div cx			; AX = DX: AX / CX
+	push dx
+	cmp ax,0			; if ax is zero
+	je display_number_1	; jump
+	call display_number ; else calls itself again
+display_number_1:
+	pop ax
+	add al,'0'			; convert remainder to ascii digit
+	call display_letter ; display on the screen
+	ret
+	
+	

asm/DosBox/sieve.asm

@@ -0,0 +1,105 @@
+
+	;
+	; Sieve of Eratosthenes
+	;
+	
+	
+	
+	
+	org 0x0100
+	
+table:		equ 0x8000
+table_size:	equ 1000
+
+start:
+	mov bx,table
+	mov cx,table_size
+	mov al,0
+p1:
+	mov [bx],al ; Write AL into the address pointed by BX
+	inc bx		; increase bx
+	loop p1		; Decrease CX, jump if non zero
+	
+	mov ax,2	; start at number 2
+p2: mov bx,table; BX = table address
+	add bx,ax	; BX=BX+AX
+	cmp byte [bx],0		; is it prime?
+	jne p3
+	push ax
+	call display_number
+	mov al,0x2c	; Comma
+	call display_letter
+	pop ax
+	
+	mov bx,table
+	add bx,ax
+	
+p4: add bx,ax
+	cmp bx,table+table_size
+	jnc p3
+	mov byte [bx],1
+	jmp p4
+	
+p3: inc ax
+	cmp ax,table_size
+	jne p2
+	
+; --------------
+	int 0x20	
+	
+	
+	; Display letter contained in AL (ASCII)
+display_letter:
+	push ax
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x0e		; Load AH with code for terminal output
+	mov bx,0x000f	; Load BH page zero adn BL color (graphic mode)
+	int 0x10		; Call the BIOS for displaying one letter
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	pop ax
+	ret				; Returns to caller
+	
+	; Read keyboard into AL (ASCII)
+read_keyboard:
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x00		; Load AH with code for keyboard read
+	int 0x16		; Call the BIOS for reading keyboard
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	ret				; Returns to caller
+
+
+	;
+	; Display the value of AX as a decimal number
+	;
+display_number:
+	mov dx,0
+	mov cx,10
+	div cx			; AX = DX: AX / CX
+	push dx
+	cmp ax,0			; if ax is zero
+	je display_number_1	; jump
+	call display_number ; else calls itself again
+	
+display_number_1:
+	pop ax
+	add al,'0'			; convert remainder to ascii digit
+	call display_letter ; display on the screen
+	ret
+	
+	

asm/DosBox/sieve2.asm

@@ -0,0 +1,107 @@
+
+	;
+	; Sieve of Eratosthenes
+	;
+	
+	
+	
+	
+	org 0x0100
+	
+table:		equ 0x8000
+table_size:	equ 1000
+
+start:
+	mov bx,table
+	mov cx,table_size
+	mov al,0
+p1:
+	mov [bx],al ; Write AL into the address pointed by BX
+	inc bx		; increase bx
+	loop p1		; Decrease CX, jump if non zero
+	
+	mov ax,2	; start at number 2
+p2: mov bx,table; BX = table address
+	add bx,ax	; BX=BX+AX
+	cmp byte [bx],0		; is it prime?
+	jne p3
+	push ax
+	call display_number
+	mov al,0x0d	; Comma
+	call display_letter
+	mov al,0x0a	; Comma
+	call display_letter
+	pop ax
+	
+	mov bx,table
+	add bx,ax
+	
+p4: add bx,ax
+	cmp bx,table+table_size
+	jnc p3
+	mov byte [bx],1
+	jmp p4
+	
+p3: inc ax
+	cmp ax,table_size
+	jne p2
+	
+; --------------
+	int 0x20	
+	
+	
+	; Display letter contained in AL (ASCII)
+display_letter:
+	push ax
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x0e		; Load AH with code for terminal output
+	mov bx,0x000f	; Load BH page zero adn BL color (graphic mode)
+	int 0x10		; Call the BIOS for displaying one letter
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	pop ax
+	ret				; Returns to caller
+	
+	; Read keyboard into AL (ASCII)
+read_keyboard:
+	push bx
+	push cx
+	push dx
+	push si
+	push di
+	mov ah,0x00		; Load AH with code for keyboard read
+	int 0x16		; Call the BIOS for reading keyboard
+	pop di
+	pop si
+	pop dx
+	pop cx
+	pop bx
+	ret				; Returns to caller
+
+
+	;
+	; Display the value of AX as a decimal number
+	;
+display_number:
+	mov dx,0
+	mov cx,10
+	div cx			; AX = DX: AX / CX
+	push dx
+	cmp ax,0			; if ax is zero
+	je display_number_1	; jump
+	call display_number ; else calls itself again
+	
+display_number_1:
+	pop ax
+	add al,'0'			; convert remainder to ascii digit
+	call display_letter ; display on the screen
+	ret
+	
+