diff --git a/mini-asm.md b/mini-asm.md
new file mode 100644
index 0000000..1b5e953
--- /dev/null
+++ b/mini-asm.md
@@ -0,0 +1,43 @@
+GS+ Pro Extreme Max HD Performance Edition includes a sweet-16 mini assembler as well as a 65816 mini assembler.
+
+## Sweet-16
+From the Debug shell, enter `!!` to enter the sweet-16 mini asembler.
+
+Enter `^D` or a blank line to exit back to the debug shell.
+
+Lines consist of an optional address, an opcode, and operands.
+
+All numbers are hexadecimal.
+The `*` operand is the current address/PC.  +/- offsets may also be applied. 
+
+Registers are named `R0`-`R15` (decimal). `ACC`, `PC` and `SR` aliases are also valid for `R0`, `R15`, and `R14`, respectively.
+
+### Examples
+
+0300: set R1, #0300
+      ld @R1
+      br *-3
+      
+## 65816
+From the Debug shell, enter `!` to enter the sweet-16 mini asembler.
+
+Enter `^D` or a blank line to exit back to the debug shell.
+
+Lines consist of an optional address, an opcode, and operands.
+  
+All numbers are hexadecimal.
+The `*` operand is the current address/PC.  +/- offsets may also be applied.
+
+The M/X bits are automatically set via `REP`/`SEP` instructions.  Additionally, the `long` and `short` directives
+may be used to set them explicitly.
+
+    long mx
+    short m
+ 
+Toolbox, GS/OS, ProDOS-16, and P8 MLI macros are auto generated from the NiftyList.Data file.
+
+    _NewHandle
+    _OpenGS 123456
+    
+
+
diff --git a/src/debug_shell.re2c b/src/debug_shell.re2c
index ac24bfd..1507225 100644
--- a/src/debug_shell.re2c
+++ b/src/debug_shell.re2c
@@ -50,7 +50,7 @@ static int g_templates_loaded = 0;
 extern void debug_load_templates(const char *path);
 extern word32 debug_apply_template(word32 address, const char *name);
 extern void debug_load_nifty(const char *path);
-extern const char *debug_tool_name(unsigned, unsigned vector);
+extern const char *debug_tool_name(unsigned number, unsigned vector, unsigned full);
 
 
 
@@ -240,6 +240,57 @@ static void do_handle(word32 value, int action) {
 }
 
 
+word32 tool_lookup(unsigned tool) {
+	enum {
+		TPtr = 0xe103c0,
+		UTPtr = 0xe103c4,
+	};
+
+	unsigned tn = tool & 0xff;
+	unsigned ix = (tool >> 8) & 0xff;
+	word32 ptr;
+	word32 count;
+
+	ptr = get_memory32_c(TPtr, 0);
+	if (ptr == 0 || ptr > 0xffffff) return 0;
+
+	count = get_memory32_c(ptr, 0);
+	if (count == 0 || count > 255 || count < tn) return 0;
+	ptr = get_memory32_c(ptr + tn * 4, 0);
+	if (ptr == 0 || ptr > 0xffffff) return 0;
+
+	count = get_memory32_c(ptr, 0);
+	if (count == 0 || count > 255) return 0;
+	if (ix && ix > count) return 0;
+
+	/* if ix == 0, list all tool calls in the set */
+	/* otherwise, just the specific tool call */
+
+	/* todo -- also lookup tool name */
+	word32 addr = 0;
+	const char *cp;
+	if (ix) {
+		unsigned n = tn + (ix << 8);
+		addr = get_memory24_c(ptr + ix * 4, 0);
+		if (addr) ++addr;
+		cp = debug_tool_name(n, 0xe10000, 1);
+		if (!cp) cp = "---unknown---";
+		printf("%04x  (%06x)  %s\n", n, addr, cp);
+	} else {
+		for(ix = 1; ix < count; ++ix) {
+			unsigned n = tn + (ix << 8);
+
+			addr = get_memory24_c(ptr + ix * 4, 0);
+			if (addr) ++addr;
+			cp = debug_tool_name(n, 0xe10000, 1);
+			if (!cp) cp = "---unknown---";
+			printf("%04x  (%06x)  %s\n", n, addr, cp);
+		}
+	}
+
+	return addr;
+}
+
 word32 do_hexdump(word32 address, int lines) {
 	static char hex[] = "0123456789abcdef";
 
@@ -624,7 +675,7 @@ word32 do_list(word32 address, int lines) {
 		if (!comment) {
 			bank = pc >> 16;
 			if (bank == 0xe0 || bank == 0xe1 || bank == 0x01 || bank == 0xff)
-				comment = debug_tool_name(pc & 0xffff, bank);
+				comment = debug_tool_name(pc & 0xffff, bank, 1);
 		}
 
 		switch (opcode) {
@@ -640,7 +691,7 @@ word32 do_list(word32 address, int lines) {
 			case 0xa2: /* ldx # */
 				if (is_jsl_e10000(address)) {
 					/* tool call ... */
-					const char *name = debug_tool_name(operand, 0xe10000);
+					const char *name = debug_tool_name(operand, 0xe10000, 0);
 					if (name) {
 						opcode_string = name;
 						buffer[0] = 0;
@@ -668,7 +719,7 @@ word32 do_list(word32 address, int lines) {
 				if (operand == 0xe100a8) {
 					/* inline GS/OS call? */
 					unsigned num = get_memory16_c(address, 0);
-					const char *name = debug_tool_name(num, operand);
+					const char *name = debug_tool_name(num, operand, 0);
 					if (name) {
 						comment = NULL;
 						opcode_string = name;
@@ -685,7 +736,7 @@ word32 do_list(word32 address, int lines) {
 				ea = (operand | (address & 0xff0000));
 				if (ea == 0x00bf00) {
 					unsigned num = get_memory_c(address, 0);
-					const char *name = debug_tool_name(num, operand);
+					const char *name = debug_tool_name(num, operand, 0);
 					if (name) {
 						opcode_string = name;
 						unsigned parms = get_memory16_c(address + 1, 0);
@@ -1666,6 +1717,11 @@ command:
 			return 0;
 		}
 
+		"t" {
+			g_prev_address = tool_lookup(addr & 0xffff);
+			return 0;
+		}
+
 
 	*/
 }
diff --git a/src/debug_template.re2c b/src/debug_template.re2c
index 80fb97d..350e004 100644
--- a/src/debug_template.re2c
+++ b/src/debug_template.re2c
@@ -401,6 +401,7 @@ word32 debug_apply_template(word32 address, const char *name) {
 
 struct tool {
 	char *name;
+	char *fullname;
 	unsigned number;
 	unsigned vector;
 };
@@ -426,6 +427,7 @@ static void add_tool(struct tool *t) {
 	tools[tool_count++] = *t;
 }
 
+
 static word32 to_hex(const char *iter, const char *end) {
 	word32 rv = 0;
 	while(iter != end) {
@@ -513,7 +515,7 @@ void debug_load_nifty(const char *path) {
 	for (line = 1;;++line) {
 		const char *start;
 		const char *end;
-		struct tool tool = { 0, 0, vector };
+		struct tool tool = { 0, 0, 0, vector };
 
 		const char *cp = fgets(buffer, sizeof(buffer), f);
 		if (!cp) break;
@@ -566,12 +568,15 @@ prefix:
 		if (end > start) {
 			int l = end - start;
 
+
+			tool.fullname = NULL; 
 			if (vector > 0x0100) {
 				/* add a leading _ */
 				tool.name = malloc(l + 2);
 				tool.name[0] = '_';
 				strncpy(tool.name + 1, start, l);
 				tool.name[l + 1] = 0;
+				tool.fullname = strdup(start);
 			}
 			else tool.name = strndup(start, l);
 			add_tool(&tool);
@@ -606,14 +611,15 @@ prefix:
 	qsort(tool_names, tool_name_count, sizeof(struct tool), tool_name_compare);
 }
 
-const char *debug_tool_name(unsigned number, unsigned vector) {
+const char *debug_tool_name(unsigned number, unsigned vector, unsigned full) {
 
 	if (!tool_count) return NULL;
 
-	struct tool tmp = { 0, number, vector };
+	struct tool tmp = { 0, 0, number, vector };
 	struct tool *t = bsearch(&tmp, tools, tool_count, sizeof(struct tool), tool_compare);
-	if (t) return t->name;
-	return NULL;
+	if (!t) return NULL;
+	if (full && t->fullname) return t->fullname;
+	return t->name;
 }
 
 
@@ -621,9 +627,8 @@ int lookup_tool_number(const char *name, unsigned vector) {
 
 	if (!tool_name_count) return 0;
 
-	struct tool tmp = { (char *)name, 0, vector};
+	struct tool tmp = { (char *)name, 0, 0, vector};
 	struct tool *t = bsearch(&tmp, tool_names, tool_name_count, sizeof(struct tool), tool_name_compare);
 	if (!t) return 0;
 	return t->number;
 }
-