add system time, clean up pci into pci.sys, clean up syscall names, fix USERAPC1 typo

code/user/apps/doom/doom.c

@@ -251,7 +251,7 @@ static bool g_prev_key[KEYMAP_COUNT];
 static void poll_input(void)
 {
     for (int i = 0; i < (int)KEYMAP_COUNT; i++) {
-        bool cur_down  = (SysKbIsKeyDown(g_keymap[i].inputKey) != 0);
+        bool cur_down  = (SysIsKeyDown(g_keymap[i].inputKey) != 0);
         bool prev_down = g_prev_key[i];
 
         if (cur_down  && !prev_down) doom_key_down(g_keymap[i].key);
@@ -295,7 +295,7 @@ static void render_frame(const uint8_t* rgba)
         }
     }
 
-    SysScreenBlit(0, 0, DISP_W, DISP_H, g_blit_buf);
+    SysBlitScreen(0, 0, DISP_W, DISP_H, g_blit_buf);
 }
 
 static int build_argv_from_command_line(const char* cmdline, char* storage, size_t storageSize,