add docs for syscalls. make syscall code kind-of cleaner

1 files changed, 13 insertions, 6 deletions

diff --git a/api/init.h b/api/init.h
index 73b19e4..e92c910 100644
--- a/api/init.h
+++ b/api/init.h
@@ -4,26 +4,33 @@
 #include <stdint.h>
 
 enum {
-    ROOTDIR_DIR_I = 0,
+    ROOTDIR_NULL_I = 0,
+    ROOTDIR_DIR_I,
     ROOTDIR_PROCESSORS_I,
     ROOTDIR_PAGEDIR_I,
     ROOTDIR_UNTYPED_I,
     ROOTDIR_HWMEMORY_I,
     ROOTDIR_PCB_I,
-    ROOTDIR_IOPB_I,
     ROOTDIR_INTERRUPTS_I,
     ROOTDIR_INITRD_I,
     ROOTDIR_MESSAGE_I,
+    ROOTDIR_FRAMEBUFFER_I,
+    ROOTDIR_VIRTTERM_I,
+    _ROOTDIR_LAST_I
 };
 
+#ifdef __x86_64__
+enum {
+    ROOTDIR_IOPB_I = _ROOTDIR_LAST_I,
+    ROOTDIR_SERIAL_COM_I,
+    _ROOTDIR_LAST_ARCH_I
+};
+#endif
+
 struct init_payload
 {
     void *rsdp;
     uintptr_t brk;
 };
 
-#define ROOTDIR_SERIAL_COM_I 0x80
-#define ROOTDIR_FRAMEBUFFER_I 0x81
-#define ROOTDIR_VIRTTERM_I 0x82
-
 #endif