frater/bios-OS
Watch
1
0
Fork
You've already forked bios-OS
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Mouse interrupt handler + debug

Browse source
This commit is contained in:
Frater 2026-01-29 13:46:35 +01:00
commit 4cf1a0b7a2
6 changed files with 389 additions and 235 deletions
Download patch file Download diff file Expand all files Collapse all files

32
src/drivers/mouse_ps2.asm
View file

@ -66,6 +66,9 @@ mouse_reset:
; experiemntal
mov byte [fs:BDA_MOUSE + mouse.wheel],0
; debug
mov byte [fs:BDA_MOUSE + mouse.blinker],0
ret
; ------------------------------------------------------------
@ -85,6 +88,7 @@ mouse_init:
call ps2_wait_ready_write
mov al, I8042_CMD_DIS_MOUSE ; Disable Mouse
out i8042_PS2_CTRL, al
; Vider tout ce qui traîne
call ps2_flush_output
; Activer le port souris (AUX)
@ -283,6 +287,8 @@ 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]
mov byte [BDA_MOUSE + mouse.buffer + bx], al
inc byte [BDA_MOUSE + mouse.idx]
@ -323,6 +329,32 @@ isr_mouse_handler:
.y_pos:
sub [BDA_MOUSE + mouse.y], ax
; --- CLAMPING X ---
; Check minimum (0)
cmp word [fs:BDA_MOUSE + mouse.x], 0
jge .check_x_max
mov word [fs: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
jle .done_x
mov word [fs:BDA_MOUSE + mouse.x], GFX_WIDTH-1
.done_x:
; --- CLAMPING Y ---
; Check minimum (0)
cmp word [fs:BDA_MOUSE + mouse.y], 0
jge .check_y_max
mov word [fs: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
jle .done_y
mov word [fs:BDA_MOUSE + mouse.y], GFX_HEIGHT-1
.done_y:
; check si il y a un 4eme byte a traiter
mov al, [BDA_MOUSE + mouse.packetlen]
cmp al,4