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fix init PIC + enable IRQ1 & 12 handeling

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This commit is contained in:
Frater 2026-01-19 22:11:51 +01:00
commit 82724598ee
7 changed files with 438 additions and 288 deletions
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17
src/bda.asm
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@ -48,7 +48,7 @@
; information relative à la souris
;
%define BDA_MOUSE_SEG 0x0050
%define BDA_DATA_SEG 0x0050
%define BDA_MOUSE_BUFFER 0x0000 ; dword; buffer (jusqu'à 4 octets)
%define BDA_MOUSE_IDX 0x0004 ; byte 0..3
@ -104,6 +104,9 @@
%define i8259_MASTER_INT 0x08
%define i8259_SLAVE_INT 0x70
%define IRQ_ENABLED 0x00
%define IRQ_DISABLED 0x01
; -----------------------------------------------------------------------------------
; bda_setup
; Initialise la BDA à zéro
@ -112,18 +115,10 @@ bda_setup:
pusha
push ds
mov ax, BDA_SEGMENT
mov ax, BDA_DATA_SEG
mov es, ax
mov ax, 0
mov cx,0xFF
xor di, di
rep stosb ; clear BDA area
mov ax, BDA_MOUSE_SEG
mov es, ax
mov ax, 0
mov ax, 0x5F
mov cx,0xFF
xor di, di
rep stosb ; clear BDA area