time

1 files changed, 99 insertions, 0 deletions

diff --git a/kernel/src/interrupt/idt.asm b/kernel/src/interrupt/idt.asm
new file mode 100644
index 0000000..6cccdc6
--- /dev/null
+++ b/kernel/src/interrupt/idt.asm
@@ -0,0 +1,99 @@
+extern idt_exception_handler
+extern idt_pic_timer
+extern idt_pic_keyboard
+extern idt_pic_mouse
+extern idt_pic_eoi
+global isr_stub_table
+
+%macro ISRErrorStub 1
+isr_stub_%+%1:
+    push dword %1
+    call idt_exception_handler
+    pop eax
+    iret
+%endmacro
+
+%macro PICGeneric 1
+isr_stub_%+%1:
+    push dword %1
+    call idt_pic_eoi
+    pop eax
+    iret
+%endmacro
+
+%macro PICTimer 1
+isr_stub_%+%1:
+    call idt_pic_timer
+    push dword %1
+    call idt_pic_eoi
+    pop eax
+    iret
+%endmacro
+
+%macro PICKeyboard 1
+isr_stub_%+%1:
+    call idt_pic_keyboard
+    push dword %1
+    call idt_pic_eoi
+    pop eax
+    iret
+%endmacro
+
+%macro PICMouse 1
+isr_stub_%+%1:
+    call idt_pic_mouse
+    push dword %1
+    call idt_pic_eoi
+    pop eax
+    iret
+%endmacro
+
+%macro ISRSyscall 1
+isr_stub_%+%1:
+    push eax
+    push ebx
+    push ecx
+    push edx
+    call idt_syscall
+    add esp, 16
+    pop eax
+    iret
+%endmacro
+
+section .text
+align 8
+%assign i 0
+%rep    32
+    ISRErrorStub i
+%assign i i+1
+%endrep
+PICTimer    32 ; 0 
+PICKeyboard 33 ; 1
+PICGeneric  34 ; 2
+PICGeneric  35 ; 3
+PICGeneric  36 ; 4
+PICGeneric  37 ; 5
+PICGeneric  38 ; 6
+PICGeneric  39 ; 7
+PICGeneric  40 ; 8
+PICGeneric  41 ; 9
+PICGeneric  42 ; 10
+PICGeneric  43 ; 11
+PICMouse    44 ; 12
+PICGeneric  45 ; 13
+PICGeneric  46 ; 14
+PICGeneric  47 ; 15
+%assign i 48
+%rep    256 - 48
+    ISRErrorStub i
+%assign i i+1
+%endrep
+
+section .rodata
+align 8
+isr_stub_table:
+%assign i 0x00
+%rep    256
+    dd isr_stub_%+i
+%assign i i+0x01
+%endrep