removed pdclib, strange things were happening..., user shell kinda works now

kernel/drivers/ps2/ps2.c

@@ -2,13 +2,18 @@
 
 #include <drivers/ps2/ps2.h>
 
+static const char scancode_to_ascii[] = {
+    0,  27, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '\b',
+  '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', 
+    0,  'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',   0, 
+  '\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',   0, '*',   0, ' '
+};
+
 extern void ps2_wait_input_empty(void);
 extern void ps2_wait_output_full(void);
 extern void ps2_write_command(uint8_t);
-extern uint8_t ps2_read_data(void);
 extern void ps2_write_data(uint8_t);
 extern void ps2_flush_output_buffer(void);
-
 extern void io_wait(void);
 
 static uint8_t read_ccb() {
@@ -68,4 +73,19 @@ int init_ps2() {
     write_ccb(ccb);
 
     return 0;
-}   
+}   
+
+char ps2_get_ascii(uint8_t scancode) {
+    if (scancode & 0x80) {
+        return 0;
+    }
+
+    if (scancode < sizeof(scancode_to_ascii)) {
+        char ascii = scancode_to_ascii[scancode];
+        if (ascii != 0) {
+            return ascii;
+        }
+    }
+
+    return 0;
+}

kernel/drivers/ps2/ps2.h

@@ -18,8 +18,11 @@
 
 #ifndef __ASSEMBLER__ 
 #include <stdint.h>
+
 int init_ps2();
 uint8_t ps2_read_data();
+
+char ps2_get_ascii(uint8_t scancode);
 #endif
 
 #endif