[ BIG CHANGE ] Properly Implemented IDT

- New include files: idt.h, pic.h, syscall.h and exceptions.h - Proper exception handling (still could be improved - PIC properly initiated and irqs all masked - BREAKS Keyboard - The keyboard IRQ is not handled anymore - convertColor() is kinda broken :/ (More in README.md)
2024-05-05 21:03:21 +02:00
parent 29418eb46b
commit 1d71a4e384
15 changed files with 448 additions and 617 deletions
@@ -3,9 +3,6 @@
 [global driveNum]

 [extern main]
-[extern idtp]
-[extern faultHandler]
-[extern irqHandler]

 ;; Calls the main function in 'main.c'
 _start:
@@ -23,345 +20,3 @@ _start:

 driveNum: db 0

-;;
-;; --- IDT ---
-;;
-[global idtLoad]
-idtLoad:
-    lidt [idtp]
-    ret
-
-;; Isrs (exceptions)
-[global isr0]
-isr0:
-    cli
-    push 0
-    push 0
-    jmp isrCommon
-[global isr1]
-isr1:
-    cli
-    push 0
-    push 1
-    jmp isrCommon
-[global isr2]
-isr2:
-    cli
-    push 0
-    push 2
-    jmp isrCommon
-[global isr3]
-isr3:
-    cli
-    push 0
-    push 3
-    jmp isrCommon
-[global isr4]
-isr4:
-    cli
-    push 0
-    push 4
-    jmp isrCommon
-[global isr5]
-isr5:
-    cli
-    push 0
-    push 5
-    jmp isrCommon
-[global isr6]
-isr6:
-    cli
-    push 0
-    push 6
-    jmp isrCommon
-[global isr7]
-isr7:
-    cli
-    push 0
-    push 7
-    jmp isrCommon
-[global isr8]
-isr8:
-    cli
-    push 8
-    jmp isrCommon
-[global isr9]
-isr9:
-    cli
-    push 0
-    push 9
-    jmp isrCommon
-[global isr10]
-isr10:
-    cli
-    push 10
-    jmp isrCommon
-[global isr11]
-isr11:
-    cli
-    push 11
-    jmp isrCommon
-[global isr12]
-isr12:
-    cli
-    push 12
-    jmp isrCommon
-[global isr13]
-isr13:
-    cli
-    push 13
-    jmp isrCommon
-[global isr14]
-isr14:
-    cli
-    push 14
-    jmp isrCommon
-[global isr15]
-isr15:
-    cli
-    push 0
-    push 15
-    jmp isrCommon
-[global isr16]
-isr16:
-    cli
-    push 0
-    push 16
-    jmp isrCommon
-[global isr17]
-isr17:
-    cli
-    push 0
-    push 17
-    jmp isrCommon
-[global isr18]
-isr18:
-    cli
-    push 0
-    push 18
-    jmp isrCommon
-[global isr19]
-isr19:
-    cli
-    push 0
-    push 19
-    jmp isrCommon
-[global isr20]
-isr20:
-    cli
-    push 0
-    push 20
-    jmp isrCommon
-[global isr21]
-isr21:
-    cli
-    push 0
-    push 21
-    jmp isrCommon
-[global isr22]
-isr22:
-    cli
-    push 0
-    push 22
-    jmp isrCommon
-[global isr23]
-isr23:
-    cli
-    push 0
-    push 23
-    jmp isrCommon
-[global isr24]
-isr24:
-    cli
-    push 0
-    push 24
-    jmp isrCommon
-[global isr25]
-isr25:
-    cli
-    push 0
-    push 25
-    jmp isrCommon
-[global isr26]
-isr26:
-    cli
-    push 0
-    push 26
-    jmp isrCommon
-[global isr27]
-isr27:
-    cli
-    push 0
-    push 27
-    jmp isrCommon
-[global isr28]
-isr28:
-    cli
-    push 0
-    push 28
-    jmp isrCommon
-[global isr29]
-isr29:
-    cli
-    push 0
-    push 29
-    jmp isrCommon
-[global isr30]
-isr30:
-    cli
-    push 0
-    push 30
-    jmp isrCommon
-[global isr31]
-isr31:
-    cli
-    push 0
-    push 31
-    jmp isrCommon
-
-isrCommon:      ; No clue how this works, i'm pretty sure it calls the C function and has to push the registers or something idk
-    pusha
-    push ds
-    push es
-    push fs
-    push gs
-    mov ax, 0x10
-    mov ds, ax
-    mov es, ax
-    mov fs, ax
-    mov gs, ax
-    mov eax, esp
-    push eax
-    mov eax, faultHandler
-    call eax
-    pop eax
-    pop gs
-    pop fs
-    pop es
-    pop ds
-    popa
-    add esp, 8
-    iret
-
-;; IRQs
-[global irq0]
-irq0:
-    cli
-    push 0
-    push 32
-    jmp irqCommon
-[global irq1]
-irq1:
-    cli
-    push 0
-    push 33
-    jmp irqCommon
-[global irq2]
-irq2:
-    cli
-    push 0
-    push 34
-    jmp irqCommon
-[global irq3]
-irq3:
-    cli
-    push 0
-    push 35
-    jmp irqCommon
-[global irq4]
-irq4:
-    cli
-    push 0
-    push 36
-    jmp irqCommon
-[global irq5]
-irq5:
-    cli
-    push 0
-    push 37
-    jmp irqCommon
-[global irq6]
-irq6:
-    cli
-    push 0
-    push 38
-    jmp irqCommon
-[global irq7]
-irq7:
-    cli
-    push 0
-    push 39
-    jmp irqCommon
-[global irq8]
-irq8:
-    cli
-    push 0
-    push 40
-    jmp irqCommon
-[global irq9]
-irq9:
-    cli
-    push 0
-    push 41
-    jmp irqCommon
-[global irq10]
-irq10:
-    cli
-    push 0
-    push 42
-    jmp irqCommon
-[global irq11]
-irq11:
-    cli
-    push 0
-    push 43
-    jmp irqCommon
-[global irq12]
-irq12:
-    cli
-    push 0
-    push 44
-    jmp irqCommon
-[global irq13]
-irq13:
-    cli
-    push 0
-    push 45
-    jmp irqCommon
-[global irq14]
-irq14:
-    cli
-    push 0
-    push 46
-    jmp irqCommon
-[global irq15]
-irq15:
-    cli
-    push 0
-    push 47
-    jmp irqCommon
-
-irqCommon: ; Simular to isrCommon, probaly calls the C function
-    pusha
-    push ds
-    push es
-    push fs
-    push gs
-    mov ax, 0x10
-    mov ds, ax
-    mov es, ax
-    mov fs, ax
-    mov gs, ax
-    mov eax, esp
-    push eax
-    mov eax, irqHandler
-    call eax
-    pop eax
-    pop gs
-    pop fs
-    pop es
-    pop ds
-    popa
-    add esp, 8
-    iret
-