bug fix init mouse + redraw cursor
This commit is contained in:
saintfrater
parent
fdea690f53
commit
ab52449591
5 changed files with 348 additions and 397 deletions
41
src/bda.asm
41
src/bda.asm
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@ -55,27 +55,28 @@
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%define BKG_TOTAL_BYTES (BKG_TOTAL_DWORDS * 4) ; 64
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struc mouse
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.buffer resb 4 ; i8042 input buffer
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.idx resb 1 ; index in the buffer
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.packetlen resb 1 ; max buffer len (3 ou 4)
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.buffer resb 4 ; i8042 input buffer 0..3
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.idx resb 1 ; index in the buffer 4
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.packetlen resb 1 ; max buffer len (3 ou 4) 5
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.status resb 1 ; mouse status (button etc)
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.wheel resb 1 ; if a packet size is 4; experimental
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.x resw 1 ;
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.y resw 1
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.status resb 1 ; mouse status (button etc) 6
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.wheel resb 1 ; if a packet size is 4; experimental 7
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.x resw 1 ; 8..9
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.y resw 1 ; A..B
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; cursor management
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.cur_x resw 1 ; preservation des x,y du background
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.cur_y resw 1
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.cur_addr_start resw 1 ; adresse de départ de la sauvegarde
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.cur_bank_add resw 1 ; + ou - 0x2000
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.cur_drawing resb 1
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.cur_visible resb 1
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.cur_seg resw 1 ; segment / offset of the pointer
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.cur_ofs resw 1
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.cur_mask resb 1 ; pixels mask (bit per pixel)
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.cur_bit_ofs resb 1 ; 0..7 bits d'offset (x&7)
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.bkg_saved resb 1 ; background saved
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alignb 4 ; alignement 4 bytes
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.cur_x resw 1 ; preservation des x,y du background C..D
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.cur_y resw 1 ; E..F
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.cur_addr_start resw 1 ; adresse de départ de la sauvegarde 10..11
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.cur_bank_add resw 1 ; + ou - 0x2000 12..13
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.cur_drawing resb 1 ; 14
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.cur_visible resb 1 ; 15
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.cur_seg resw 1 ; segment / offset of the pointer 16..17
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.cur_ofs resw 1 ; 18..19
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.cur_mask resb 1 ; pixels mask (bit per pixel) 1A
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.cur_bit_ofs resb 1 ; 0..7 bits d'offset (x&7) 1B
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.bkg_saved resb 1 ; background saved 1C
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alignb 4 ; alignement 4 bytes 1D
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.bkg_buffer resd 16 ; buffer for saved background
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endstruc
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@ -95,6 +96,8 @@ endstruc
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%define BDA_MOUSE 0x0000
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%define BDA_GFX (BDA_MOUSE + mouse_size)
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%warning offset Mouse: BAD_MOUSE, Gfx : BDA_GFX
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;
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; memory map
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;
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@ -1,4 +1,4 @@
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; =============================================================================
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80; =============================================================================
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; Project : Custom BIOS / ROM
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; File : gfx_cgam.asm
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; Author : frater
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@ -131,7 +131,7 @@ cga_init:
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int 0x10
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mov byte [BDA_MOUSE + mouse.bkg_saved],0 ; flag image saved
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mov byte [BDA_GFX + gfx.cur_mode], 1
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; mov byte [BDA_GFX + gfx.cur_mode], 1
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; dessine un background "check-board"
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call cga_background
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ret
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@ -703,103 +703,64 @@ cga_cursor_draw:
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mov ax, VIDEO_SEG
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mov es, ax
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; --- 1. CLIPPING VERTICAL ---
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; --- CLIPPING VERTICAL ---
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mov dx, [ds:BDA_MOUSE + mouse.y]
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cmp dx, 200
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jae .exit_total
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mov bp, 16
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mov ax, 200
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sub ax, dx
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sub ax, dx ; 200-y
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cmp bp, ax
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jbe .y_ok
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jbe .y_ok ; y<= 200-16
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mov bp, ax
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.y_ok:
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; --- 2. ADRESSAGE ---
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mov cx, [ds:BDA_MOUSE + mouse.x]
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mov dx, [ds:BDA_MOUSE + mouse.y]
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; --- ADRESSAGE ---
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mov cx, [BDA_MOUSE + mouse.x]
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mov dx, [BDA_MOUSE + mouse.y]
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call cga_calc_addr ; DI = Offset VRAM
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mov ax, [ds:BDA_MOUSE + mouse.cur_seg]
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mov ax, [BDA_MOUSE + mouse.cur_seg]
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mov gs, ax
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mov si, [ds:BDA_MOUSE + mouse.cur_ofs]
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mov si, [BDA_MOUSE + mouse.cur_ofs]
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; --- 3. CALCUL DES STRIDES ---
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; --- CALCUL de l'offset entre 2 lignes +0x2000 ou -0x2000 ---
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mov bx, 0x2000 ; Banque opposée
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mov dx, -0x2000 + 80 ; Retour + ligne suivante
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test word [ds:BDA_MOUSE + mouse.y], 1
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test word [BDA_MOUSE + mouse.y], 1
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jz .setup_done
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xchg bx, dx
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neg bx
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.setup_done:
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and cx, 7 ; CL = Shift (0..7)
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mov [BDA_MOUSE + mouse.cur_bank_add], bx ; interligne + ou - 0x2000
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.row_loop:
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; --- CONSTRUCTION DES MASQUES (EAX/EBX) ---
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; On force l'ordre [GAUCHE][DROITE] visuel en lisant par octet
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xor eax, eax
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;mov ah, [gs:si+1] ; Octet GAUCHE du masque AND
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;mov al, [gs:si] ; Octet DROITE du masque AND
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mov ax, [gs:si] ; Octet DROITE du masque AND
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; Ton sprite cursor.asm utilise 0 pour le curseur, donc PAS de NOT
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shl eax, 8
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or eax, 0xFF0000FF ; Bourrage de 1 (fond transparent)
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xor ebx, ebx
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mov bx, [gs:si+32] ; Octet GAUCHE du masque XOR
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;mov bh, [gs:si+33] ; Octet GAUCHE du masque XOR
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;mov bl, [gs:si+32] ; Octet DROITE du masque XOR
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shl ebx, 8 ; EBX = [00][GAUCHE][DROITE][00]
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mov ax, [gs:si] ; masque AND
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xchg al, ah
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; expansion 16 bits -> 32 bits avec padding
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;shl eax, 8
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;or eax, 0xFF0000FF ; EAX = [FF][GAUCHE][DROITE][FF]
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; --- DECALAGE (SHIFT) ---
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push edx
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mov edx, 0xFFFFFFFF
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shrd eax, edx, cl ; Injecte du fond (1) à gauche
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xor edx, edx
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shrd ebx, edx, cl ; Injecte du vide (0) à gauche
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pop edx
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; --- RMW SUR 3 OCTETS (Fenêtre de 24 bits) ---
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; Octet 0 (Gauche)
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mov dl, [es:di]
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push eax
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shr eax, 16 ; Récupère bits 23-16
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and dl, al
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push ebx
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shr ebx, 16
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xor dl, bl
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mov [es:di], dl
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pop ebx
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pop eax
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mov bx, [gs:si+32] ; masque XOR
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xchg bl, bh
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; expansion 16 bits -> 32 bits avec padding
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;shl ebx, 8 ; EBX = [00][GAUCHE][DROITE][00]
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; Octet 1 (Milieu)
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mov dl, [es:di+1]
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push eax
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shr eax, 8
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and dl, al ; Bits 15-8
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push ebx
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shr ebx, 8
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xor dl, bl
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mov [es:di+1], dl
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pop ebx
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pop eax
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; Octet 2 (Droite + Clipping X)
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mov ax, [ds:BDA_MOUSE + mouse.x]
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shr ax, 3
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cmp ax, 78
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jae .next_line
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mov dx, [es:di] ; lecture des 16 bits a la position du curseur
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and dx, ax ; application du masque AND (AX)
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xor dx, bx ; application du masque XOR (BX)
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mov dl, [es:di+2]
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and dl, al ; Bits 7-0
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xor dl, bl
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mov [es:di+2], dl
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mov [es:di], dx ; ecriture du résultat
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.next_line:
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add di, bx
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xchg bx, dx
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add di, CGA_STRIDE
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; [BDA_MOUSE + mouse.cur_bank_add]
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add si, 2 ; Prochaine ligne du sprite
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dec bp
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jnz .row_loop
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@ -33,30 +33,20 @@ kbd_flush:
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kbd_init:
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push ds
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push ax
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call kbd_flush
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; gestion du buffer clavier
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mov ax, BDA_SEGMENT
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mov ds, ax
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mov byte [BDA_KBD_HEAD], 0
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mov byte [BDA_KBD_TAIL], 0
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mov byte [BDA_KBD_FLAGS], 0
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mov ax,cs
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mov ax,cs ; get current CS
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mov dx,ax
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mov bx,kbd_isr
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mov bx,kbd_isr ; Event handler
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mov ax, i8259_MASTER_INT ; base offset IRQ 0
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inc ax ; IRQ 1
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call ivt_setvector
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; enable IRQ 1
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mov ah,IRQ_ENABLED
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mov al,1
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call pic_set_irq_mask
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pop ax
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pop ds
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ret
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@ -70,10 +60,6 @@ kbd_isr:
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in al, 0x60 ; consomme scancode (obligatoire)
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mov ax,BDA_DATA_SEG
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mov ds,ax
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inc byte [0x0000]
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mov al, PIC_EOI ; EOI master
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out i8259_MASTER_CMD, al
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@ -65,7 +65,7 @@ mouse_reset:
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mov word [fs:BDA_MOUSE + mouse.cur_ofs], mouse_arrow
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; experiemntal
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mov word [fs:BDA_MOUSE + mouse.wheel],0
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mov byte [fs:BDA_MOUSE + mouse.wheel],0
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ret
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; ------------------------------------------------------------
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@ -139,6 +139,7 @@ mouse_init:
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pop ax
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pop ds
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ret
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; ------------------------------------------------------------
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; detect la taille du "payload" de la souris.
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;
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