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gestion souris OK + clipping x > 639 & y > 199

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This commit is contained in:
Frater 2026-01-29 21:08:53 +01:00
commit c5124b35e3
7 changed files with 207 additions and 236 deletions
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31
src/drivers/mouse_ps2.asm
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@ -287,9 +287,15 @@ isr_mouse_handler:
; lire un octet depuis le contrôleur et le stocker dans le buffer
in al, i8042_PS2_DATA ; lire octet souris
inc byte [BDA_MOUSE + mouse.blinker]
movzx bx, byte [BDA_MOUSE + mouse.idx]
cmp bl,0
jne .read_packet
; check bit 3 octet 0 pour assurer que le bloc est ok:
test al, 00001000b ; bit 3 = 1
jz .done_eoi ; allignement erroné
.read_packet:
mov byte [BDA_MOUSE + mouse.buffer + bx], al
inc byte [BDA_MOUSE + mouse.idx]
@ -301,11 +307,6 @@ isr_mouse_handler:
; packet complet, on decode les données (ou on jette si c'est incorrect)
mov byte [BDA_MOUSE + mouse.idx], 0 ; reset de l'index de lecture
; check bit 3 octet 0 pour assurer que le bloc est ok:
mov al, byte [BDA_MOUSE + mouse.buffer]
and al, 00001000b ; bit 3 = 1
je .done_eoi ; allignement erroné
; debut du décodage des données
mov bl, [BDA_MOUSE + mouse.buffer] ; status
mov al,bl
@ -331,28 +332,28 @@ isr_mouse_handler:
; --- CLAMPING X ---
; Check minimum (0)
cmp word [fs:BDA_MOUSE + mouse.x], 0
cmp word [BDA_MOUSE + mouse.x], 0
jge .check_x_max
mov word [fs:BDA_MOUSE + mouse.x], 0
mov word [BDA_MOUSE + mouse.x], 0
jmp .done_x
.check_x_max:
; Check maximum (e.g., 639 for graphics, or pixel width)
cmp word [fs:BDA_MOUSE + mouse.x], GFX_WIDTH-1 ; Replace with variable or define
cmp word [BDA_MOUSE + mouse.x], GFX_WIDTH-1 ; Replace with variable or define
jle .done_x
mov word [fs:BDA_MOUSE + mouse.x], GFX_WIDTH-1
mov word [BDA_MOUSE + mouse.x], GFX_WIDTH-1
.done_x:
; --- CLAMPING Y ---
; Check minimum (0)
cmp word [fs:BDA_MOUSE + mouse.y], 0
cmp word [BDA_MOUSE + mouse.y], 0
jge .check_y_max
mov word [fs:BDA_MOUSE + mouse.y], 0
mov word [BDA_MOUSE + mouse.y], 0
jmp .done_y
.check_y_max:
; Check maximum
cmp word [fs:BDA_MOUSE + mouse.y], GFX_HEIGHT-1 ; Replace with variable or define
cmp word [BDA_MOUSE + mouse.y], GFX_HEIGHT-1 ; Replace with variable or define
jle .done_y
mov word [fs:BDA_MOUSE + mouse.y], GFX_HEIGHT-1
mov word [BDA_MOUSE + mouse.y], GFX_HEIGHT-1
.done_y:
; check si il y a un 4eme byte a traiter