1 files changed, 149 insertions, 0 deletions
diff --git a/src/loader/interrupt.asm b/src/loader/interrupt.asm
new file mode 100644
index 0000000..7ac805b
--- /dev/null
+++ b/src/loader/interrupt.asm
@@ -0,0 +1,149 @@
+; MIT License, Copyright (c) 2021 Marvin Borner
+
+%macro INTERRUPT_REGISTER 1
+dd int%1
+%endmacro
+
+%macro INTERRUPT_ERR 1
+int%1:
+	push %1
+	jmp interrupt_common
+%endmacro
+
+%macro INTERRUPT_NOERR 1
+int%1:
+	push 0
+	push %1
+	jmp interrupt_common
+%endmacro
+
+extern interrupt_handler
+interrupt_common:
+	cld
+
+	pushad
+	push ds
+	push es
+	push fs
+	push gs
+
+	mov ax, 0x20
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+
+	push esp
+	call interrupt_handler
+	mov esp, eax
+
+	pop gs
+	pop fs
+	pop es
+	pop ds
+	popad
+
+	add esp, 8
+	iret
+
+INTERRUPT_NOERR 0
+INTERRUPT_NOERR 1
+INTERRUPT_NOERR 2
+INTERRUPT_NOERR 3
+INTERRUPT_NOERR 4
+INTERRUPT_NOERR 5
+INTERRUPT_NOERR 6
+INTERRUPT_NOERR 7
+INTERRUPT_ERR   8
+INTERRUPT_NOERR 9
+INTERRUPT_ERR   10
+INTERRUPT_ERR   11
+INTERRUPT_ERR   12
+INTERRUPT_ERR   13
+INTERRUPT_ERR   14
+INTERRUPT_NOERR 15
+INTERRUPT_NOERR 16
+INTERRUPT_ERR 17
+INTERRUPT_NOERR 18
+INTERRUPT_NOERR 19
+INTERRUPT_NOERR 20
+INTERRUPT_NOERR 21
+INTERRUPT_NOERR 22
+INTERRUPT_NOERR 23
+INTERRUPT_NOERR 24
+INTERRUPT_NOERR 25
+INTERRUPT_NOERR 26
+INTERRUPT_NOERR 27
+INTERRUPT_NOERR 28
+INTERRUPT_NOERR 29
+INTERRUPT_ERR   30
+INTERRUPT_NOERR 31
+
+INTERRUPT_NOERR 32
+INTERRUPT_NOERR 33
+INTERRUPT_NOERR 34
+INTERRUPT_NOERR 35
+INTERRUPT_NOERR 36
+INTERRUPT_NOERR 37
+INTERRUPT_NOERR 38
+INTERRUPT_NOERR 39
+INTERRUPT_NOERR 40
+INTERRUPT_NOERR 41
+INTERRUPT_NOERR 42
+INTERRUPT_NOERR 43
+INTERRUPT_NOERR 44
+INTERRUPT_NOERR 45
+INTERRUPT_NOERR 46
+INTERRUPT_NOERR 47
+
+global interrupt_table
+interrupt_table:
+	INTERRUPT_REGISTER 0
+	INTERRUPT_REGISTER 1
+	INTERRUPT_REGISTER 2
+	INTERRUPT_REGISTER 3
+	INTERRUPT_REGISTER 4
+	INTERRUPT_REGISTER 5
+	INTERRUPT_REGISTER 6
+	INTERRUPT_REGISTER 7
+	INTERRUPT_REGISTER 8
+	INTERRUPT_REGISTER 9
+	INTERRUPT_REGISTER 10
+	INTERRUPT_REGISTER 11
+	INTERRUPT_REGISTER 12
+	INTERRUPT_REGISTER 13
+	INTERRUPT_REGISTER 14
+	INTERRUPT_REGISTER 15
+	INTERRUPT_REGISTER 16
+	INTERRUPT_REGISTER 17
+	INTERRUPT_REGISTER 18
+	INTERRUPT_REGISTER 19
+	INTERRUPT_REGISTER 20
+	INTERRUPT_REGISTER 21
+	INTERRUPT_REGISTER 22
+	INTERRUPT_REGISTER 23
+	INTERRUPT_REGISTER 24
+	INTERRUPT_REGISTER 25
+	INTERRUPT_REGISTER 26
+	INTERRUPT_REGISTER 27
+	INTERRUPT_REGISTER 28
+	INTERRUPT_REGISTER 29
+	INTERRUPT_REGISTER 30
+	INTERRUPT_REGISTER 31
+
+	INTERRUPT_REGISTER 32
+	INTERRUPT_REGISTER 33
+	INTERRUPT_REGISTER 34
+	INTERRUPT_REGISTER 35
+	INTERRUPT_REGISTER 36
+	INTERRUPT_REGISTER 37
+	INTERRUPT_REGISTER 38
+	INTERRUPT_REGISTER 39
+	INTERRUPT_REGISTER 40
+	INTERRUPT_REGISTER 41
+	INTERRUPT_REGISTER 42
+	INTERRUPT_REGISTER 43
+	INTERRUPT_REGISTER 44
+	INTERRUPT_REGISTER 45
+	INTERRUPT_REGISTER 46
+	INTERRUPT_REGISTER 47