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diff --git a/kernel/old/include/udefs.h b/kernel/old/include/udefs.h
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+/**
+** @file	udefs.h
+**
+** @author	CSCI-452 class of 20245
+**
+** @brief	"Userland" configuration information
+*/
+
+#ifndef UDEFS_H_
+#define UDEFS_H_
+
+#include <common.h>
+
+/*
+** General (C and/or assembly) definitions
+**
+** This section of the header file contains definitions that can be
+** used in either C or assembly-language source code.
+*/
+
+// delay loop counts
+
+#define DELAY_LONG		100000000
+#define DELAY_MED		4500000
+#define DELAY_SHORT		2500000
+
+#define DELAY_STD		DELAY_SHORT
+
+#ifndef ASM_SRC
+
+/*
+** Start of C-only definitions
+*/
+
+// convenience macros
+
+// a delay loop - kind of ugly, but it works
+
+#define DELAY(n)	do { \
+		for(int _dlc = 0; _dlc < (DELAY_##n); ++_dlc) continue; \
+	} while(0)
+
+/*
+** We need the list of program IDs so that we can request 
+** their execution
+*/
+
+#include <userids.h>
+
+/*
+** All user main() functions have the following prototype:
+**
+**	int name( int argc, char *argv[] );
+**
+** To simplify declaring them, we define a macro that expands into
+** that header. This can be used both in the implementation (followed
+** by the function body) and in places where we just need the prototype
+** (following it with a semicolon).
+*/
+
+#define USERMAIN(f)	int f( int argc, char *argv[] )
+
+/*
+** User process controls.
+**
+** To enable a specific test, define the symbol SPAWN_name here, and
+** guard the places in other code that use or refer to that test. For
+** example, test 'A' is enabled by definining SPAWN_A here, and all
+** places that refer to test 'A' are guarded with:
+**
+**      #ifdef SPAWN_A
+**          ... conditionally-compiled code
+**      #endif
+**
+** Generally, most of these will exit with a status of 0.  If a process
+** returns from its main function when it shouldn't (e.g., if it had
+** called exit() but continued to run), it will usually return a status
+** of ?.
+*/
+
+/*
+** The standard set of test programs, start by the shell (which is started
+** automatically from the initial user process)
+**
+** There is no user 'O' program, and programs 'W' through 'Z' are spawned
+** from other processes and are never spawned directly.
+*/
+
+#define SPAWN_A
+#define SPAWN_B
+#define SPAWN_C
+#define SPAWN_D
+#define SPAWN_E
+#define SPAWN_F
+#define SPAWN_G
+#define SPAWN_H
+#define SPAWN_I
+#define SPAWN_J
+#define SPAWN_K
+#define SPAWN_L
+#define SPAWN_M
+#define SPAWN_N
+#define SPAWN_P
+#define SPAWN_Q
+#define SPAWN_R
+#define SPAWN_S
+#define SPAWN_T
+#define SPAWN_U
+#define SPAWN_V
+
+#endif /* !ASM_SRC */
+
+#endif