Finally set up IDT and interrupt table

Author: AvihooI

Makefile

@@ -12,7 +12,7 @@ ALL_OBJ := environment.o \
 		kernel.o \
 		string.o \
 		idt.o \
-		load_gdt.o
+		_idt.o
 ALL_DEP := $(patsubst %.o,.%.d,$(ALL_OBJ))
 
 #Assembly configuration

_idt.asm

@@ -0,0 +1,205 @@
+idtr:
+    idt_size    dw 256*8 - 1
+    idt_offset  dd _idt
+    
+
+global _idt
+align 8
+_idt times 256 dq 0
+
+global load_idt
+load_idt:
+    lidt [idtr]
+    ret
+
+global _isr_0
+global _isr_1
+global _isr_2
+global _isr_3
+global _isr_4
+global _isr_5
+global _isr_6
+global _isr_7
+global _isr_8
+global _isr_9
+global _isr_10
+global _isr_11
+global _isr_12
+global _isr_13
+global _isr_14
+global _isr_15
+global _isr_16
+global _isr_17
+global _isr_18
+global _isr_19
+global _isr_20
+global _isr_21
+global _isr_22
+global _isr_23
+global _isr_24
+global _isr_25
+global _isr_26
+global _isr_27
+global _isr_28
+global _isr_29
+global _isr_30
+global _isr_31
+
+
+extern isr_0
+_isr_0: ;divide error, error code: no
+    cli
+    push byte 0
+    push byte 0
+    jmp _isr_common
+
+_isr_1: ;debug exception, error code: no
+    cli
+    push byte 0
+    push byte 1
+    jmp _isr_common
+
+_isr_2: ;NMI external interrupt, error code: no
+    cli
+    push byte 0
+    push byte 2
+    jmp _isr_common
+
+_isr_3: ;Breakpoint, error code: no
+    cli
+    push byte 0
+    push byte 3
+    jmp _isr_common
+
+_isr_4: ;Overflow, error code: no
+    cli
+    push byte 0
+    push byte 4
+    jmp _isr_common
+
+_isr_5: ;Bound range exceeded, error code: no
+    cli
+    push byte 0
+    push byte 5
+    jmp _isr_common
+
+_isr_6: ;Invalid opcode, error code: no
+    cli
+    push byte 0
+    push byte 6
+    jmp _isr_common
+
+_isr_7: ;Device not available (no x87 coprocessor - shouldn't really happen), error code: no
+    cli
+    push byte 0
+    push byte 7
+    jmp _isr_common
+
+_isr_8: ;Double Fault, error code: always 0
+    cli 
+    push byte 8
+    jmp _isr_common
+
+_isr_9: ;Coprocessor segment overrun, error code: no
+    cli 
+    push byte 0
+    push byte 9
+    jmp _isr_common
+
+_isr_10: ;Invalid TSS, error code: yes
+    cli 
+    push byte 10
+    jmp _isr_common
+
+_isr_11: ;Segment not present, error code: yes
+    cli 
+    push byte 11
+    jmp _isr_common
+
+_isr_12: ;Stack-Segment fault, error code: yes
+    cli 
+    push byte 12
+    jmp _isr_common
+
+_isr_13: ;General Protection fault, error code: yes
+    cli 
+    push byte 13
+    jmp _isr_common
+
+_isr_14: ;Page fault, error code: yes
+    cli 
+    push byte 14
+    jmp _isr_common
+
+_isr_16: ;x87 floating point error (math fault), error code: no
+    cli
+    push byte 0
+    push byte 16
+    jmp _isr_common
+
+_isr_17: ;Alignment Check, error code: yes
+    cli
+    push byte 17
+    jmp _isr_common
+
+_isr_18: ;Machine check, error code: no
+    cli
+    push byte 0
+    push byte 18
+    jmp _isr_common
+
+_isr_19: ;SIMD floating point exception, error code: no
+    cli
+    push byte 0
+    push byte 19
+    jmp _isr_common
+
+_isr_20: ;Virtualization exception, error code: no
+    cli
+    push byte 0
+    push byte 20
+    jmp _isr_common
+
+_isr_15: ;reserved interrupts, error code: no
+_isr_21:
+_isr_22:
+_isr_23:
+_isr_24:
+_isr_25:
+_isr_26:
+_isr_27:
+_isr_28:
+_isr_29:
+_isr_30:
+_isr_31:
+    cli
+    push byte 0
+    push byte 15 ;doesn't really matter
+    jmp _isr_common
+
+_isr_common:
+    pusha
+    push ds
+    push es
+    push fs
+    push gs
+    mov ax, 0x10 ;Load ring-0 DS selector
+    mov ds, ax
+    mov es, ax
+    mov fs, ax
+    mov gs, ax
+    mov eax, esp ;Push the stack
+    push eax
+    extern fault_handler
+    call fault_handler
+    pop eax
+    pop gs
+    pop fs
+    pop es
+    pop ds
+    popa
+    add esp, 8 ;cleans the pushed error code and pushed isr number
+    iret ;pops CS, EIP, EFLAGS, SS and ESP
+
+
+