-#define LOADER_BIOS_SIG (LOADER_END - 2) /* 0xaa55 BIOS signature. */
-#define LOADER_CMD_LINE (LOADER_BIOS_SIG - 0x80) /* Kernel command line. */
-#define LOADER_RAM_PAGES (LOADER_CMD_LINE - 4) /* # of pages of RAM. */
+#define LOADER_BIOS_SIG (LOADER_END - 2) /* 0xaa55 BIOS signature. */
+#define LOADER_CMD_LINE_LEN 0x80 /* Command line length. */
+#define LOADER_CMD_LINE (LOADER_BIOS_SIG - LOADER_CMD_LINE_LEN)
+ /* Kernel command line. */
+#define LOADER_RAM_PAGES (LOADER_CMD_LINE - 4) /* # of pages of RAM. */