Add initial source files for Tic-Tac-Toe game implementation

Signed-off-by: Elmar Kresse <elmar.kresse@stud.htwk-leipzig.de>
2025-07-03 15:53:46 +02:00
commit 2a94dfb8d5
10 changed files with 1121 additions and 0 deletions
--- a/logic.asm
+++ b/logic.asm
@ -0,0 +1,140 @@
+;****************************************
+;   Elmar Kresse 19-INB-1 (2021)
+;   logic.asm
+;   file contains source code for the
+;   logic (mouse, timer, programm)
+;
+;       - handle_timer_tick PROC
+;       - prepare_timer_tick PROC
+;       - prepare_mouse PROC
+;       - mouseProc PROC FAR
+;       - start_programm PROC
+;****************************************
+
+handle_timer_tick PROC
+                                        ; Call  the original interrupt vector
+                                        ; by pushing flags register and doing a FAR CALL to old vector
+    PUSHF
+    CALL DWORD ptr [CS:old_timer]
+    INC WORD ptr [CS:timer_ticks]        ; Increase timer counter
+    
+    IRET
+handle_timer_tick ENDP
+
+prepare_timer_tick PROC
+
+                PUSH DS
+                MOV AX, 351Ch           ; Get user timer interrupt vector
+                INT 21h
+                                        ; ES:BX now has the address of the interrupt vector
+                MOV [CS:old_timer], BX
+                MOV AX, ES
+                MOV [CS:old_segment], AX
+
+                MOV AX, 251ch           ; Set user timer interrupt vector
+                PUSH CS
+                POP DS
+                MOV DX, OFFSET handle_timer_tick
+                INT 21h
+
+                POP ds
+
+    ret
+prepare_timer_tick ENDP
+
+prepare_mouse PROC
+
+            mov dx, OFFSET mouseProc     ;jump to click_event_handler
+            mov ax, 0Ch
+            mov cx, 00000010b           ; on left click
+            push cs                     ;es:dx
+            pop es
+            int 33h
+            
+            mov ax, 1                   ;show cursor
+            int 33h
+
+    ret
+prepare_mouse ENDP
+
+mouseProc PROC FAR                    ;other doc segment therefore FAR
+            enter 0, 0
+            push ax
+            push bx
+            push cx
+            push dx
+            push es
+            push ds
+
+            mov ax, 2                   ;hide cursor
+            int 33h     
+
+                                        ;dx contains coordinates of "rows"
+            mov y_wert, dx              ;save y coordinate in variable
+                                        ;cx contains coordinates of "columns"
+            mov x_wert, cx              ;save y coordinate in variable
+
+            call game_logic
+
+            xor bx, bx                  ;button pressed clear result
+
+            mov ax, 1                   ;show cursor
+            int 33h
+
+            pop ds
+            pop es
+            pop dx
+            pop cx
+            pop bx
+            pop ax
+            leave
+            ret
+mouseProc    ENDP
+
+start_programm PROC
+
+            mov AX, video_seg
+            mov es, AX
+
+
+            mov ax, @DATA
+            mov ds, ax          
+
+
+            mov ax, 12h
+            int 10h
+
+            mov dx, 03C4h           ;address of the index port (share)
+            mov al, 2               ;index of control register
+            out dx, al              ;Set index: output out :: dx to port al(2)
+            inc dx                  ;index of dataport
+            mov al, 0Fh             ;value (1 = bit plane enabled, here all) fi
+            out dx, al  
+
+        
+        call prepare_timer_tick
+
+        mov ax,0Dh
+        int 10h
+        
+        call paint_menu
+
+        check_mode_loop:
+        xor ax, ax                  ;delete ah 
+        int 16h                     ;keyboard query
+
+        cmp al,'1'
+        je short playgame
+
+        cmp al,'2'
+        je ende
+
+        jmp check_mode_loop
+
+    playgame:
+        call start_game
+
+
+ret
+start_programm ENDP
+