Heavy restructuring of libc, kernel and apps

1 files changed, 142 insertions, 0 deletions

diff --git a/kernel/drivers/interrupts.asm b/kernel/drivers/interrupts.asm
new file mode 100644
index 0000000..59c323c
--- /dev/null
+++ b/kernel/drivers/interrupts.asm
@@ -0,0 +1,142 @@
+; MIT License, Copyright (c) 2020 Marvin Borner
+
+; IRQ
+
+%macro IRQ 2
+  global irq%1
+  irq%1:
+	cli
+	push byte 0
+	push byte %2
+	jmp irq_common_stub
+%endmacro
+
+IRQ 0, 32
+IRQ 1, 33
+IRQ 2, 34
+IRQ 3, 35
+IRQ 4, 36
+IRQ 5, 37
+IRQ 6, 38
+IRQ 7, 39
+IRQ 8, 40
+IRQ 9, 41
+IRQ 10, 42
+IRQ 11, 43
+IRQ 12, 44
+IRQ 13, 45
+IRQ 14, 46
+IRQ 15, 47
+
+extern irq_handler
+irq_common_stub:
+	pusha
+
+	push ds
+	push es
+	push fs
+	push gs
+
+	mov ax, 0x10
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+	cld
+
+	push esp
+	call irq_handler
+	add esp, 4
+
+	pop gs
+	pop fs
+	pop es
+	pop ds
+	popa
+
+	add esp, 8
+	sti
+	iret
+
+; ISR
+
+%macro ISR_NOERRCODE 1
+	global isr%1
+	isr%1:
+		cli
+		push byte 0
+		push %1
+		jmp isr_common_stub
+%endmacro
+
+%macro ISR_ERRCODE 1
+	global isr%1
+	isr%1:
+		cli
+		push byte %1
+		jmp isr_common_stub
+%endmacro
+
+ISR_NOERRCODE 0
+ISR_NOERRCODE 1
+ISR_NOERRCODE 2
+ISR_NOERRCODE 3
+ISR_NOERRCODE 4
+ISR_NOERRCODE 5
+ISR_NOERRCODE 6
+ISR_NOERRCODE 7
+ISR_ERRCODE   8
+ISR_NOERRCODE 9
+ISR_ERRCODE   10
+ISR_ERRCODE   11
+ISR_ERRCODE   12
+ISR_ERRCODE   13
+ISR_ERRCODE   14
+ISR_NOERRCODE 15
+ISR_NOERRCODE 16
+ISR_NOERRCODE 17
+ISR_NOERRCODE 18
+ISR_NOERRCODE 19
+ISR_NOERRCODE 20
+ISR_NOERRCODE 21
+ISR_NOERRCODE 22
+ISR_NOERRCODE 23
+ISR_NOERRCODE 24
+ISR_NOERRCODE 25
+ISR_NOERRCODE 26
+ISR_NOERRCODE 27
+ISR_NOERRCODE 28
+ISR_NOERRCODE 29
+ISR_NOERRCODE 30
+ISR_NOERRCODE 31
+ISR_NOERRCODE 128
+
+extern isr_handler
+isr_common_stub:
+	pusha
+
+	push ds
+	push es
+	push fs
+	push gs
+
+	mov ax, 0x10
+	mov ds, ax
+	mov es, ax
+	mov fs, ax
+	mov gs, ax
+	cld
+
+	push esp
+	call isr_handler
+	add esp, 4
+
+	pop gs
+	pop fs
+	pop es
+	pop ds
+	popa
+
+	add esp, 8
+	sti
+	iret