The _most_ basic memory managment

kernel/kernel.c

@@ -3,6 +3,7 @@
 #include <stdint.h>
  
 #include "terminal.c"
+#include "memory.c"
 
 /* Check if the compiler thinks you are targeting the wrong operating system. */
 #if defined(__linux__)
@@ -14,6 +15,11 @@
 #error "This tutorial needs to be compiled with a ix86-elf compiler"
 #endif
 
+struct person {
+	long id;
+	int age;
+	char gender;
+};
  
 void kernel_main(void) 
 {
@@ -26,10 +32,24 @@ void kernel_main(void)
 	terminal_putchar('l');
 	terminal_putchar('o');
  
-	/* Newline support is left as an exercise. */
     terminal_setcolor(vga_entry_color(VGA_COLOR_GREEN, VGA_COLOR_BLACK));
     terminal_writestring(" kernel");
     terminal_setcolor(vga_entry_color(VGA_COLOR_LIGHT_GREY, VGA_COLOR_BLACK));
     terminal_writestring(" World!\n");
-	terminal_writestring("Newlines!");
+	terminal_writestring("Newlines!\n");
+
+	char* memory_str = alloc(sizeof(char) * 7);
+	for (int i = 0; i < 6; i++) {
+		memory_str[i] = "Memory"[i];
+	}
+	memory_str[6] = 0;
+
+	char* management_str = alloc(sizeof(char) * 13);
+	for (int i = 0; i < 12; i++) {
+		management_str[i] = " management!"[i];
+	}
+	management_str[12] = 0;
+
+	terminal_writestring(memory_str);
+	terminal_writestring(management_str);
 }

kernel/memory.c

@@ -0,0 +1,9 @@
+#include <stddef.h>
+
+void* _curr_end = (void*) 0x10000;
+
+void* alloc(size_t size) {
+    void* thanks_jp = _curr_end;
+    _curr_end += size;
+    return thanks_jp;
+}