implements integer printing into printf, and adds some testing logs

kernel/arch/gdt/gdt_entry.c

@@ -16,4 +16,3 @@ uint64_t create_descriptor(uint32_t base, uint32_t limit, uint16_t flag)
 
 	return descriptor;
 }
-

kernel/arch/idt/idt.c

@@ -1,5 +1,8 @@
 #include <stdbool.h>
 
+#ifdef __TESTING__
+#include <kernel/_kernel.h>
+#endif
 #include <kernel/x86/idt.h>
 
 __attribute__((aligned(0x10)))
@@ -29,6 +32,9 @@ void idt_set_descriptor(uint8_t vector, void *isr, uint8_t flags)
 extern void* isr_stub_table[];
 void idt_init(void)
 {
+#ifdef __TESTING__
+	kinfo("Initializing the IDT");	
+#endif
 	idtr.base = (uintptr_t)&idt[0];
 	idtr.limit = (uint16_t) sizeof(idt_entry_t) * IDT_MAX_DESCRIPTORS - 1;
 
@@ -40,5 +46,8 @@ void idt_init(void)
 	// The "m" indicates actual data, not a pointer
 	__asm__ volatile("lidt %0" : : "m"(idtr)); // load the new IDT
 	__asm__ volatile("sti"); // set the interrupt flag
+#ifdef __TESTING__
+	kinfo("Initialized the IDT");	
+#endif			 
 }
 

kernel/arch/pic/pic.c

@@ -1,3 +1,6 @@
+#ifdef __TESTING__
+#include <kernel/_kernel.h>
+#endif
 #include <kernel/x86/io.h>
 #include <kernel/x86/pic.h>
 
@@ -10,6 +13,9 @@ void PIC_sendEOI(uint8_t irq)
 
 void PIC_remap(int offset1, int offset2)
 {
+#ifdef __TESTING__
+	kinfo("Remapping the PIC...");
+#endif
 	// The io_wait calls are necessary for older machines, to give the PIC time to react
 	//
 	// After the init, the PIC requires 3 init words
@@ -38,12 +44,19 @@ void PIC_remap(int offset1, int offset2)
 	// Unmask the PICs
 	outb(PIC1_DATA, 0);
 	outb(PIC2_DATA, 0);
+
+#ifdef __TESTING__
+	kinfo("Remapped the PIC!");
+#endif
 }
 
 void pic_disable(void)
 { // Mask the PIC interrupts to disable them
 	outb(PIC1_DATA, 0xFF);
 	outb(PIC2_DATA, 0xFF);
+#ifdef __TESTING__
+	kinfo("Disabled the PIC");
+#endif
 }
 
 void IRQ_set_mask(uint8_t IRQline) // Masked IRQlines are ignored by the PIC, masked IRQ2 will fully ignore the slave