SliTaz Repositories

     1.1 --- a/bootinvaders/stuff/invaders.asm	Thu Aug 29 17:33:52 2024 +0000
     1.2 +++ b/bootinvaders/stuff/invaders.asm	Sat Aug 31 11:34:59 2024 +0000
     1.3 @@ -35,8 +35,8 @@
     1.4          ;                        press ESC. Position independant code.
     1.5          ;
     1.6  
     1.7 -;%define USE_ARROW_KEYS		too slow
     1.8 -;%define CHECK_VIDEO		CGA and MDA cards are not supported
     1.9 +;%define USE_ARROW_KEYS          too slow
    1.10 +%define CHECK_VIDEO             CGA and MDA cards are not supported
    1.11  
    1.12          cpu 8086
    1.13  
    1.14 @@ -125,7 +125,7 @@
    1.15          add di,0x1e*2
    1.16          loop in48
    1.17  
    1.18 -        ; CH is zero
    1.19 +        ; CL is zero
    1.20  
    1.21  in14:
    1.22          mov si,sprites+SPRITE_SIZE
    1.23 @@ -137,14 +137,14 @@
    1.24          ; SI = Next invader to animate
    1.25          ; DL = state (0=left, 1=right, >=2 down)
    1.26          ; DH = nstate (next state)
    1.27 -        ; CH = dead invaders
    1.28 +        ; CL = dead invaders
    1.29          ; BP = frame counter
    1.30          ;
    1.31  in46:
    1.32          cmp byte [si+2],0x20    ; Current invader is cosmic debris?
    1.33          jc in02                 ; No, jump
    1.34 -        inc ch                  ; Count another dead invader
    1.35 -        cmp ch,55               ; All invaders defeated?
    1.36 +        inc cx                  ; Count another dead invader
    1.37 +        cmp cl,55               ; All invaders defeated?
    1.38          je restart_game         ; Yes, jump.
    1.39          ;
    1.40          ; Yes, invaders speed up
    1.41 @@ -257,7 +257,9 @@
    1.42          js restart                      ; Exit if all used
    1.43  in42:   mov [si-2],ax                   ; Save new frame / color
    1.44          mov di,[si]                     ; Load position
    1.45 +        pushf
    1.46          call draw_sprite                ; Draw sprite (spaceship)
    1.47 +        popf
    1.48          jne in43                        ; Jump if still explosion
    1.49  
    1.50  %ifdef USE_ARROW_KEYS
    1.51 @@ -274,12 +276,13 @@
    1.52          je quit                         ; Yes, jump
    1.53          sub al,0x4b-1
    1.54          test al,0xfd                    ; Left/Right arrow ?
    1.55 -        jnz in17                        ; No, jump
    1.56 +        jnz in35                        ; No, jump
    1.57          dec ax
    1.58          add di,ax                       ; Move 2 pixels Left/Right
    1.59          add di,ax
    1.60  in17:
    1.61  %else
    1.62 +        mov bx,12                       ; Ctrl/Alt key mask
    1.63          mov ah,0x01
    1.64          int 0x16                        ; BIOS Got key
    1.65          jz in17                         ; No, jump
    1.66 @@ -289,7 +292,6 @@
    1.67          je quit
    1.68  in17:   mov ah,0x02                     ; BIOS Get Keyboard Flags 
    1.69          int 0x16
    1.70 -        mov bx,12                       ; Ctrl/Alt key mask
    1.71          and bl,al
    1.72          jp in18                         ; test Ctrl xor Alt
    1.73          lea di,[bx+di-6]                ; Move 2 pixels to left/right
    1.74 @@ -339,16 +341,17 @@
    1.75          add ax,0x06*0x280+0x03*2        ; Offset for bullet
    1.76          xchg ax,bx
    1.77  
    1.78 -        in al,(0x40)    ; Read timer
    1.79 -        cmp al,0xfc     ; Random event happening?
    1.80 -        jc in04         ; No, jump
    1.81 +        in al,(0x40)            ; Read timer
    1.82 +        and al,0xfc             ; Random event happening?
    1.83 +        jnz in04                ; No, jump
    1.84          
    1.85 -        mov di,shots
    1.86 -in45:   scasw           ; Advance DI
    1.87 -        cmp [di],ch     ; Search for free slot
    1.88 -        loopne in45     ; Until 3 slots searched
    1.89 -        mov [di],bx     ; Start invader shot (or put in ignored slot)
    1.90 +        mov di,shots+2
    1.91 +        cbw
    1.92 +        repne                   ; Until 3 slots searched
    1.93 +        scasw                   ; Search for free slot
    1.94 +        mov [di-2],bx           ; Start invader shot (or put in ignored slot)
    1.95  in04:
    1.96 +        mov cl,0
    1.97          jmp in06
    1.98  
    1.99          ;
   1.100 @@ -380,11 +383,11 @@
   1.101  
   1.102          ; ah = sprite color
   1.103          ; al = sprite (x8)
   1.104 +        ; ch = 0
   1.105          ; di = Target address
   1.106  draw_sprite:
   1.107          push cx
   1.108          push di
   1.109 -        pushf
   1.110  in03:   push ax
   1.111          call get_bitmaps
   1.112          ;
   1.113 @@ -401,7 +404,7 @@
   1.114          pop bx
   1.115          cs xlat                 ; Extract one byte from bitmap
   1.116          xchg ax,bx              ; bl contains byte, bh contains color
   1.117 -        mov cx,10               ; Two extra zero pixels at left and right
   1.118 +        mov cl,10               ; Two extra zero pixels at left and right
   1.119          clc                     ; Left pixel as zero (clean)
   1.120  in0:    mov al,bh               ; Duplicate color in AX
   1.121          call bit                ; Draw pixel
   1.122 @@ -412,7 +415,6 @@
   1.123          inc ax                  ; Next bitmap byte
   1.124          test al,7               ; Sprite complete?
   1.125          jne in03                ; No, jump
   1.126 -        popf
   1.127          pop di
   1.128          pop cx
   1.129  in49:   ret

     2.1 --- a/bootpillman/stuff/pillman.asm	Thu Aug 29 17:33:52 2024 +0000
     2.2 +++ b/bootpillman/stuff/pillman.asm	Sat Aug 31 11:34:59 2024 +0000
     2.3 @@ -23,7 +23,7 @@
     2.4          ;                             position independant code, reset screen
     2.5          ;                             at exit, slow down Pillman blink.
     2.6          ;
     2.7 -;%define CHECK_VIDEO            CGA and MDA cards are not supported
     2.8 +%define CHECK_VIDEO            CGA and MDA cards are not supported
     2.9  
    2.10          cpu 8086
    2.11  
    2.12 @@ -229,7 +229,7 @@
    2.13  draw_maze_row:
    2.14          cs lodsw                ; Load one word of data from Code Segment
    2.15          xchg ax,cx              ; Put into AX
    2.16 -        mov bx,-30*8            ; Offset of mirror position
    2.17 +        mov bx,-31*8            ; Offset of mirror position
    2.18  draw_maze_col:
    2.19          add cx,cx               ; Extract one tile of maze
    2.20          mov ax,MAZE_COLOR*0x0100+0x18   ; Carry = 0 = Wall
    2.21 @@ -237,14 +237,12 @@
    2.22          mov ax,PILL_COLOR*0x0100+0x38   ; Carry = 1 = Pill
    2.23  dm1:    call draw_sprite        ; Draw tile
    2.24          sub di,bx               ; Go to mirror position
    2.25 +        call draw_sprite        ; Draw tile
    2.26 +        lea di,[bx+di+8]        ; Restore position and advance tile
    2.27          add bx,16               ; Mirror finished?
    2.28 -        jg dm2                  ; Yes, jump
    2.29 -        call draw_sprite        ; Draw tile
    2.30 -        lea di,[bx+di-8]        ; Restore position and advance tile
    2.31 -        jmp draw_maze_col       ; Repeat until finished
    2.32 +        jle draw_maze_col       ; Repeat until finished
    2.33  
    2.34 -dm2:   
    2.35 -        add di,X_OFFSET*8-15*8  ; Go to next row
    2.36 +        add di,X_OFFSET*8-16*8  ; Go to next row
    2.37          lea ax,[bp+setup_data_]
    2.38          sub ax,si               ; Maze completed? (clear ax)
    2.39          jne draw_maze_row       ; No, jump