i need a break

kernel/arch/boot.s

@@ -23,6 +23,6 @@ loader:
 
 	call kmain
 
-	cli
+	;cli
 loop:	hlt
 	jmp loop 

kernel/arch/gdt/gdt_entry.c

@@ -26,6 +26,14 @@ uint64_t create_descriptor(uint32_t base, uint32_t limit, uint16_t flag)
 	return descriptor;
 }
 
+void dump_gdt(void)
+{
+	for (int i = 0; i < GDT_SIZE; i++) {
+		printf("GDT_ENTRY %d: %4 | %2\n", i, gdt[i], gdt[i]);
+	}
+}
+
+
 void gdt_init(void)
 { 
 #ifdef __TESTING__
@@ -45,9 +53,4 @@ void gdt_init(void)
 #endif
 }
 
-void dump_gdt(void)
+
-{
-	for (int i = 0; i < GDT_SIZE; i++) {
-		printf("GDT_ENTRY %d: %1 | %2\n", i, gdt[i], gdt[i]);
-	}
-}

kernel/arch/idt/idt.c

@@ -2,8 +2,10 @@
 
 #ifdef __TESTING__
 #include <kernel/_kernel.h>
+#include <stdio.h>
 #endif
 #include <kernel/x86/idt.h>
+#include <kernel/x86/pic.h>
 
 __attribute__((aligned(0x10)))
 static idt_entry_t idt[256];
@@ -12,8 +14,12 @@ static idtr_t idtr;
 
 static bool vectors[IDT_MAX_DESCRIPTORS];
 
-void exception_handler()
+void exception_handler(unsigned int i)
 {
+#ifdef __TESTING__
+	kerror("EXCEPTION");
+	printf("Exeption: %u\n", i);
+#endif
 	__asm__ volatile ("cli; hlt"); // hangs the computer
 }
 
@@ -28,7 +34,6 @@ void idt_set_descriptor(uint8_t vector, void *isr, uint8_t flags)
 	descriptor->reserved = 0;
 }
 
-
 extern void* isr_stub_table[];
 void idt_init(void)
 {
@@ -38,16 +43,19 @@ void idt_init(void)
 	idtr.base = (uintptr_t)&idt[0];
 	idtr.limit = (uint16_t) sizeof(idt_entry_t) * IDT_MAX_DESCRIPTORS - 1;
 
-	for (uint8_t vector = 0; vector < 32; vector++) {
+	for (uint8_t vector = 0; vector < IDT_MAX_DESCRIPTORS; vector++) {
 		idt_set_descriptor(vector, isr_stub_table[vector], 0x8E);
 		vectors[vector] = true;
 	}
 
 	// The "m" indicates actual data, not a pointer
 	__asm__ volatile("lidt %0" : : "m"(idtr)); // load the new IDT
+						  
+	PIC_remap(0x20, 0x28);
+	IRQ_set_mask(0xfd); // unmask IRQ1
+
 	__asm__ volatile("sti"); // set the interrupt flag
 #ifdef __TESTING__
 	kinfo("Initialized the IDT");	
 #endif			 
 }
-

kernel/arch/idt/idt_src.s

@@ -2,13 +2,19 @@ extern exception_handler
 
 %macro isr_err_stub 1
 isr_stub_%+%1:
+	pushad
+	push dword %1
 	call exception_handler
+	popad
 	iret
 %endmacro
 
 %macro isr_no_err_stub 1
 isr_stub_%+%1:
+	pushad
+	push dword %1
 	call exception_handler
+	popad
 	iret
 %endmacro
 
@@ -44,11 +50,28 @@ isr_no_err_stub 28
 isr_no_err_stub 29
 isr_err_stub    30
 isr_no_err_stub 31
+isr_no_err_stub 32 
+isr_no_err_stub 33
+isr_no_err_stub 34
+isr_no_err_stub 35 
+isr_no_err_stub 36 
+isr_no_err_stub 37
+isr_no_err_stub 38
+isr_no_err_stub 39 
+isr_no_err_stub 40 
+isr_no_err_stub 41 
+isr_no_err_stub 42
+isr_no_err_stub 43
+isr_no_err_stub 44
+isr_no_err_stub 45
+isr_no_err_stub 46 
+isr_no_err_stub 47
+
 
 global isr_stub_table
 isr_stub_table:
 %assign i 0
-%rep 32
+%rep 48
 	dd isr_stub_%+i
 %assign i i+1
 %endrep

kernel/include/kernel/x86/gdt.h

@@ -58,8 +58,6 @@ uint64_t create_descriptor(uint32_t base, uint32_t limit, uint16_t flag);
 
 void gdt_init(void);
 
-void dump_gdt(void);
-
 #endif
 
 

kernel/include/kernel/x86/idt.h

@@ -3,9 +3,32 @@
 #ifndef ARCH_IDT_H
 #define ARCH_IDT_H
 
-#define IDT_MAX_DESCRIPTORS 32 // number of entries in the idt table, 32 i believe
+#define IDT_MAX_DESCRIPTORS 48 // number of entries in the idt table
 
-void exception_handler(void);
+
+#define EXCEPT_DIV_ERR 0
+#define EXCEPT_DEBUG 1
+#define EXCEPT_NMI 2
+#define EXCEPT_BREAKPOINT 3
+#define EXCEPT_OVERFLOW 4
+#define EXCEPT_BOUND_RANGE_EXCEEDED 5
+#define EXCEPT_INVALID_OPCODE 6
+#define EXCEPT_DEVICE_NOT_AVAILABLE 7
+#define EXCEPT_DOUBLE_FAULT 8
+#define EXCEPT_SEG_OVERRUN 9
+#define EXCEPT_INVALID_TSS 10
+#define EXCEPT_SEG_NOT_PRESENT 11
+#define EXCEPT_STACK_SEG_FAULT 12
+#define EXCEPT_GENERAL_PROTECTION 13
+#define EXCEPT_PAGE_FAULT 14
+#define EXCEPT_FLOATING_POINT_ERR_FPU 16
+#define EXCEPT_ALIGNMENT_CHECK 17
+#define EXCEPT_MACHINE_CHECK 18
+#define EXCEPT_FLOATING_POINT_ERR_SIMD 19
+#define EXCEPT_VIRT 20
+#define EXCEPT_CTRL_PROT 21
+
+void exception_handler(unsigned int i);
 
 typedef struct {
 	uint16_t isr_low;	// The lower 16 bits of the ISR's address

kernel/kmain.c

@@ -6,7 +6,7 @@
 #include <kernel/serial.h>
 #include <kernel/x86/gdt.h>
 #include <kernel/x86/idt.h>
-#include <kernel/x86/pic.h>
+#include <kernel/x86/io.h>
 
 void kmain(void)
 {
@@ -16,18 +16,10 @@ void kmain(void)
 #endif
 	gdt_init();		
 	idt_init();
-	PIC_remap(0x20, 0x28);
 
 #ifndef __TESTING__ 
 	terminal_initialize();
 	serial_initialize();
 #endif
 
-	uint8_t a = 2;
-	uint16_t b = 3;
-	int c = 4;
-
-	uint64_t d = 10;
-
-	printf("%d, %d, %d, %3", a, b, c, d);
 }