7 files changed, 0 insertions, 219 deletions
diff --git a/src/kernel/arch/i386/interrupts/idt.c b/src/kernel/arch/i386/interrupts/idt.c
deleted file mode 100644
index cd2adfd..0000000
--- a/src/kernel/arch/i386/interrupts/idt.c
+++ /dev/null
@@ -1,68 +0,0 @@
-#include <kernel/arch/i386/gdt.h>
-#include <kernel/arch/i386/interrupts/idt.h>
-#include <kernel/arch/i386/interrupts/isr.h>
-#include <kernel/panic.h>
-#include <stdbool.h>
-#include <stdint.h>
-
-struct idt_entry {
-	uint16_t offset_low   ;
-	uint16_t code_seg     ;
-	uint8_t  zero         ; // unused, has to be 0
-	uint8_t  type      : 4; // 16/32 bit, task/interrupt/task gate
-	uint8_t  storage   : 1; // 0 for interrupt/trap gates
-	uint8_t  ring      : 2;
-	uint8_t  present   : 1;
-	uint16_t offset_high  ;
-} __attribute__((packed));
-
-// is exactly the same as lgdt_arg, i should combine them into a single struct
-// later
-struct lidt_arg {
-	uint16_t limit;
-	uint32_t base;
-} __attribute__((packed));
-
-__attribute__((section(".shared")))
-static struct idt_entry IDT[256];
-static struct lidt_arg lidt_arg;
-
-static void idt_prepare(void);
-static void idt_load(void);
-static void idt_test(void);
-
-
-static void idt_prepare(void) {
-	uintptr_t offset;
-	for (int i = 0; i < 256; i++) {
-		offset = (uintptr_t) &_isr_stubs + i * 8;
-
-		IDT[i] = (struct idt_entry) {
-			.offset_low  = offset,
-			.offset_high = offset >> 16,
-			.code_seg    = SEG_r0code << 3,
-			.zero        = 0,
-			.present     = 1,
-			.ring        = 0,
-			.storage     = 0,
-			.type        = 0xE, // 32-bit interrupt gate
-		};
-	}
-}
-
-static void idt_load(void) {
-	lidt_arg.limit = sizeof(IDT) - 1;
-	lidt_arg.base = (uintptr_t) &IDT;
-	asm("lidt (%0)" : : "r" (&lidt_arg) : "memory");
-}
-
-static void idt_test(void) {
-	asm("int $0x34" : : : "memory");
-	assert(isr_test_interrupt_called);
-}
-
-void idt_init(void) {
-	idt_prepare();
-	idt_load();
-	idt_test();
-}
diff --git a/src/kernel/arch/i386/interrupts/idt.h b/src/kernel/arch/i386/interrupts/idt.h
deleted file mode 100644
index 6576cf9..0000000
--- a/src/kernel/arch/i386/interrupts/idt.h
+++ /dev/null
@@ -1,3 +0,0 @@
-#pragma once
-
-void idt_init(void);
diff --git a/src/kernel/arch/i386/interrupts/irq.c b/src/kernel/arch/i386/interrupts/irq.c
deleted file mode 100644
index 5918169..0000000
--- a/src/kernel/arch/i386/interrupts/irq.c
+++ /dev/null
@@ -1,33 +0,0 @@
-#include <kernel/arch/i386/interrupts/irq.h>
-#include <kernel/arch/i386/port_io.h>
-#include <stdint.h>
-
-static const int PIC1 = 0x20;
-static const int PIC2 = 0xA0;
-
-void irq_init(void) {
-	port_out8(PIC1, 0x11);   /* start init sequence */
-	port_out8(PIC2, 0x11);
-
-	port_out8(PIC1+1, 0x20); /* interrupt offsets */
-	port_out8(PIC2+1, 0x30);
-
-	port_out8(PIC1+1, 0x4);  /* just look at the osdev wiki lol */
-	port_out8(PIC2+1, 0x2);
-
-	port_out8(PIC1+1, 0x1);  /* 8086 mode */
-	port_out8(PIC2+1, 0x1);
-
-	uint8_t mask = 0xff;
-	mask &= ~(1 << 1); // keyboard
-	mask &= ~(1 << 4); // COM1
-
-	port_out8(PIC1+1, mask);
-	port_out8(PIC2+1, 0xff);
-}
-
-void irq_eoi(uint8_t line) {
-	port_out8(PIC1, 0x20);
-	if (line >= 8)
-		port_out8(PIC2, 0x20);
-}
diff --git a/src/kernel/arch/i386/interrupts/irq.h b/src/kernel/arch/i386/interrupts/irq.h
deleted file mode 100644
index f523154..0000000
--- a/src/kernel/arch/i386/interrupts/irq.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#pragma once
-#include <stdbool.h>
-#include <stdint.h>
-
-void irq_init(void);
-void irq_eoi(uint8_t line);
diff --git a/src/kernel/arch/i386/interrupts/isr.c b/src/kernel/arch/i386/interrupts/isr.c
deleted file mode 100644
index 2d893cb..0000000
--- a/src/kernel/arch/i386/interrupts/isr.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <kernel/arch/i386/driver/ps2.h>
-#include <kernel/arch/i386/driver/serial.h>
-#include <kernel/arch/i386/interrupts/irq.h>
-#include <kernel/arch/i386/interrupts/isr.h>
-#include <kernel/arch/i386/port_io.h>
-#include <kernel/arch/generic.h>
-#include <kernel/panic.h>
-#include <kernel/proc.h>
-#include <stdbool.h>
-#include <stdint.h>
-
-bool isr_test_interrupt_called = false;
-
-void isr_stage3(int interrupt) {
-	switch (interrupt) {
-		case 0x08: // double fault
-			kprintf("#DF");
-			panic_invalid_state();
-		case 0x34:
-			isr_test_interrupt_called = true;
-			return;
-
-		case 0x21: // keyboard irq
-			ps2_recv(port_in8(0x60));
-			irq_eoi(1);
-			return;
-
-		case 0x24: // COM1 irq
-			serial_irq();
-			irq_eoi(1);
-			return;
-
-		default:
-			// TODO check if the exception was in the kernel
-			process_kill(process_current, interrupt);
-			process_switch_any();
-	}
-}
diff --git a/src/kernel/arch/i386/interrupts/isr.h b/src/kernel/arch/i386/interrupts/isr.h
deleted file mode 100644
index 3189538..0000000
--- a/src/kernel/arch/i386/interrupts/isr.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#pragma once
-#include <stdbool.h>
-
-extern bool isr_test_interrupt_called; // used in the self-test in idt.c
-extern const char _isr_stubs;
-
-void isr_stage3(int interrupt);
diff --git a/src/kernel/arch/i386/interrupts/isr_stub.s b/src/kernel/arch/i386/interrupts/isr_stub.s
deleted file mode 100644
index fdbae6f..0000000
--- a/src/kernel/arch/i386/interrupts/isr_stub.s
+++ /dev/null
@@ -1,64 +0,0 @@
-.section .shared
-
-.global _isr_stubs
-_isr_stubs:
-.rept 256
-	.set _stub_start, .
-
-	cli
-	call _isr_stage2
-
-	.if . - _stub_start > 8
-		.error "isr stubs over maximum size"
-		.abort
-	.endif
-	.align 8
-.endr
-
-_isr_stage2:
-	// pushal order, without %esp
-	push %eax
-	push %ecx
-	push %edx
-	push %ebx
-	push %ebp
-	push %esi
-	push %edi
-
-	// convert the return address into the vector nr
-	mov 28(%esp), %eax
-	add $-_isr_stubs, %eax
-	shr $3, %eax
-
-	// disable paging, if present
-	mov %cr0, %ebx
-	push %ebx // push original cr0
-	and $0x7FFFFFFF, %ebx
-	mov %ebx, %cr0
-
-	mov %esp, %ebp
-	mov $_isr_big_stack, %esp
-	push %eax // push the vector nr
-	call isr_stage3
-
-	mov %ebp, %esp
-	pop %eax // restore old cr0
-	mov %eax, %cr0
-
-	// restore registers
-	pop %edi
-	pop %esi
-	pop %ebp
-	pop %ebx
-	pop %edx
-	pop %ecx
-	pop %eax
-
-	add $4, %esp // skip call's return address
-	iret
-
-.align 8
-// TODO overflow check
-.skip 64 // seems to be enough
-.global _isr_mini_stack
-_isr_mini_stack: