diff --git a/Makefile b/Makefile
index 6ecc126..bc72e1d 100644
--- a/Makefile
+++ b/Makefile
@@ -10,23 +10,29 @@ OBJS=_crt0.rel clrscr.rel putchar.rel puts.rel exit.rel gotoxy.rel __assert_fail
 all: main.8xk
 
 clean:
-	rm -f * main.ihx main.bin main.8xk
+	@rm -f obj/* main.ihx main.bin main.8xk
 
 try: main.8xk
-	tilem2 --rom=ti83pv116.bin
+	@tilem2 --rom=ti83pv116.bin
 
 %.rel: lib83/%.c
-	$(CC) $(CFLAGS) $< -o obj/$@
+	@echo "(lib) CC $<"
+	@$(CC) $(CFLAGS) $< -o obj/$@
 
 %.rel: %.c
-	$(CC) $(CFLAGS) $< -o obj/$@
+	@echo "CC $<"
+	@$(CC) $(CFLAGS) $< -o obj/$@
 
 main.ihx: $(OBJS)
-	cd obj && $(CC) -mz80 --no-std-crt0 --code-loc 0x4000 --code-size 0x4000 --xram-loc 0x9D95 --xram-size 0x6060 $^ -o ../$@ && cd ..
+	@echo "LD $@"
+	@cd obj && $(CC) -mz80 --no-std-crt0 --code-loc 0x4000 --code-size 0x4000 --xram-loc 0x9D95 --xram-size 0x6060 $^ -o ../$@ && cd ..
 
 main.bin: main.ihx
-	objcopy -Iihex -Obinary $< $@
+	@echo "IHX->BIN $@"
+	@objcopy -Iihex -Obinary $< $@
+	@echo `stat -c %s $@` bytes
 
 main.8xk: main.bin
-	rabbitsign -v -P -p -t 8xk -g $<
+	@echo "SIGN $@"
+	@rabbitsign -P -p -t 8xk -g $<
 
diff --git a/lib83/avtype.h b/lib83/avtype.h
index e69de29..b89723b 100644
--- a/lib83/avtype.h
+++ b/lib83/avtype.h
@@ -0,0 +1,220 @@
+
+#ifndef _AVTYPE_H
+#define _AVTYPE_H
+
+#define AV_BLOCK 0x00
+#define AV_ETA_L 0x01
+#define AV_VEC_U 0x02
+#define AV_VEC_V 0x03
+#define AV_VEC_W 0x04
+#define AV_RPOINT 0x05
+#define AV_BOLDUPARROW 0x06
+#define AV_BOLDDOWNARROW 0x07
+#define AV_INTEGRAL 0x08
+#define AV_CROSS 0x09
+#define AV_SMALLCIRC 0x0A
+#define AV_SMALLPLUS 0x0B
+#define AV_SMALLDOT 0x0C
+#define AV_BOTTOM 0x0D
+#define AV_SS3 0x0E
+#define AV_BOLDF 0x0F
+
+#define AV_SQRT 0x10
+#define AV_RECIP 0x11
+#define AV_SS2 0x12
+#define AV_ANGL 0x13
+#define AV_DEGREE 0x14
+#define AV_RAD 0x15
+#define AV_SBOTTOM 0x16
+#define AV_LEQ 0x17
+#define AV_NEQ 0x18
+#define AV_GEQ 0x19
+#define AV_MACRON 0x1A
+#define AV_EXP 0x1B
+#define AV_RIGHTARROW 0x1C
+#define AV_SUB10 0x1D
+#define AV_UPARROW 0x1E
+#define AV_DOWNARROW 0x1F
+
+#define AV_SP 0x20
+#define AV_BANG 0x21
+#define AV_DQUOTE 0x22
+#define AV_HASH 0x23
+#define AV_SS4 0x24
+#define AV_PERCENT 0x25
+#define AV_AMP 0x26
+#define AV_SQUOTE 0x27
+#define AV_LPAREN 0x28
+#define AV_RPAREN 0x29
+#define AV_TIMES 0x2A
+#define AV_PLUS 0x2B
+#define AV_COMMA 0x2C
+#define AV_MINUS 0x2D
+#define AV_PERIOD 0x2E
+#define AV_SLASH 0x2F
+
+#define AV_0 0x30
+#define AV_1 0x31
+#define AV_2 0x32
+#define AV_3 0x33
+#define AV_4 0x34
+#define AV_5 0x35
+#define AV_6 0x36
+#define AV_7 0x37
+#define AV_8 0x38
+#define AV_9 0x39
+#define AV_COLON 0x3A
+#define AV_SEMI 0x3B
+#define AV_LT 0x3C
+#define AV_EQ 0x3D
+#define AV_GT 0x3E
+#define AV_QUERY 0x3F
+
+#define AV_AT 0x40
+#define AV_A 0x41
+#define AV_B 0x42
+#define AV_C 0x43
+#define AV_D 0x44
+#define AV_E 0x45
+#define AV_F 0x46
+#define AV_G 0x47
+#define AV_H 0x48
+#define AV_I 0x49
+#define AV_J 0x4A
+#define AV_K 0x4B
+#define AV_L 0x4C
+#define AV_M 0x4D
+#define AV_N 0x4E
+#define AV_O 0x4F
+
+#define AV_P 0x50
+#define AV_Q 0x51
+#define AV_R 0x52
+#define AV_S 0x53
+#define AV_T 0x54
+#define AV_U 0x55
+#define AV_V 0x56
+#define AV_W 0x57
+#define AV_X 0x58
+#define AV_Y 0x59
+#define AV_Z 0x5A
+#define AV_THETA 0x5B
+#define AV_BSLASH 0x5C
+#define AV_RBRACK 0x5D
+#define AV_CARET 0x5E
+#define AV_USCORE 0x5F
+
+#define AV_GRAVE 0x60
+#define AV_a 0x61
+#define AV_b 0x62
+#define AV_c 0x63
+#define AV_d 0x64
+#define AV_e 0x65
+#define AV_f 0x66
+#define AV_g 0x67
+#define AV_h 0x68
+#define AV_i 0x69
+#define AV_j 0x6A
+#define AV_k 0x6B
+#define AV_l 0x6C
+#define AV_m 0x6D
+#define AV_n 0x6E
+#define AV_o 0x6F
+
+#define AV_p 0x70
+#define AV_q 0x71
+#define AV_r 0x72
+#define AV_s 0x73
+#define AV_t 0x74
+#define AV_u 0x75
+#define AV_v 0x76
+#define AV_w 0x77
+#define AV_x 0x78
+#define AV_y 0x79
+#define AV_z 0x7A
+#define AV_LBRACE 0x7B
+#define AV_PIPE 0x7C
+#define AV_RBRACE 0x7D
+#define AV_TILDE 0x7E
+#define AV_INVEQ 0x7F
+
+#define AV_L0 0x80
+#define AV_L1 0x81
+#define AV_L2 0x82
+#define AV_L3 0x83
+#define AV_L4 0x84
+#define AV_L5 0x85
+#define AV_L6 0x86
+#define AV_L7 0x87
+#define AV_L8 0x88
+#define AV_L9 0x89
+
+// Random special letter stuff... TODO...
+
+#define AV_M45 0xB6
+#define AV_M270 0xB7
+#define AV_DIAERESIS 0xB8
+#define AV_RQMARK 0xB9
+#define AV_RBANG 0xBA
+#define AV_ALPHA 0xBB
+#define AV_BETA 0xBC
+#define AV_GAMMA 0xBD
+#define AV_UP_DELTA 0xBE
+#define AV_DELTA 0xBF
+
+#define AV_EPSILON 0xC0
+#define AV_LBRACK 0xC1
+#define AV_LAMBDA 0xC2
+#define AV_MU 0xC3
+#define AV_PI 0xC4
+#define AV_RHO 0xC5
+#define AV_UP_SIGMA 0xC6
+#define AV_SIGMA 0xC7
+#define AV_TAU 0xC8
+#define AV_UP_PHI 0xC9
+#define AV_UP_OMEGA 0xCA
+#define AV_X_OBAR 0xCB
+#define AV_PHI 0xCC
+#define AV_SSCROSS 0xCD
+#define AV_DOTS 0xCE
+#define AV_LPOINT 0xCF
+
+#define AV_SEMISLASH 0xD1
+#define AV_SMALLMINUS 0xD2
+#define AV_SQUARED 0xD3
+#define AV_SQDEG 0xD4
+#define AV_CUBED 0xD5
+#define AV_BOLD_COLON 0xD6
+#define AV_IMAG 0xD7
+#define AV_RHO_CAP 0xD8
+#define AV_CHI 0xD9
+#define AV_UP_F 0xDA
+#define AV_EUL 0xDB
+#define AV_SUBL 0xDC
+#define AV_BOLD_N 0xDD
+#define AV_DOUBLE_RPAR 0xDE
+#define AV_SMALL_RIGHTARROW 0xDF
+
+#define AV_RECT 0xE0
+#define AV_INV_UPARROW 0xE1
+#define AV_INV_A 0xE2
+#define AV_INV_a 0xE3
+#define AV_UBAR 0xE4
+#define AV_UPARROW_UBAR 0xE5
+#define AV_A_UBAR 0xE6
+#define AV_a_UBAR 0xE7
+#define AV_CENTR_DIAG 0xE8
+#define AV_BOLD_CENTR_DIAG 0xE9
+#define AV_UTRI 0xEA
+#define AV_LTRI 0xEB
+#define AV_0_LTACK 0xEC
+#define AV_SMALL0 0xED
+#define AV_DIAGDOTS 0xEE
+#define AV_BOLD_LONG_UPARROW 0xEF
+
+#define AV_BOLD_LONG_DOWNARROW 0xF0
+#define AV_DOTSBLOCK 0xF1
+
+
+#endif
+
diff --git a/lib83/ctype.c b/lib83/ctype.c
index 905ba6e..db4fe4a 100644
--- a/lib83/ctype.c
+++ b/lib83/ctype.c
@@ -13,61 +13,58 @@
 
 // TODO.
 static unsigned char tab[256] = {
-    GRAPH, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, GRAPH, GRAPH, GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL,
+    GRAPH, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, LOWER|SPECL|ALPHA, GRAPH, GRAPH, GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, ALPHA|UPPER|SPECL,
     GRAPH|SPECL, SPECL, SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, SPECL, SPECL, SPECL, SPECL, SPECL, SPECL, SPECL, GRAPH|SPECL, GRAPH|SPECL,
     SPACE, PUNCT|SPECL, PUNCT|SPECL, SPECL|GRAPH, SPECL, SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, PUNCT|SPECL|GRAPH, SPECL|GRAPH, PUNCT|SPECL|GRAPH, SPECL|GRAPH,
+    DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH, PUNCT|SPECL|GRAPH,
     PUNCT|SPECL|GRAPH, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA,
-
     UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, UPPER|ALPHA, SPECL|GRAPH|ALPHA, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH,
     PUNCT|SPECL|GRAPH, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA,
-    LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
-    NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE
+    LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, LOWER|ALPHA, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT, SPECL|GRAPH,
+    DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, DIGIT|LOWER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER,
+    ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER,
+    ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER,
+    ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|LOWER, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|LOWER,
+    ALPHA|LOWER, SPECL|GRAPH|PUNCT, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|LOWER, ALPHA|UPPER, ALPHA|SPECL, ALPHA|SPECL, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT, SPECL|GRAPH|PUNCT,
+    GRAPH, GRAPH|SPECL, GRAPH|SPECL, DIGIT|LOWER|SPECL, SPECL|GRAPH, DIGIT|LOWER|SPECL, GRAPH|SPECL, ALPHA|LOWER|SPECL, ALPHA|LOWER|SPECL, ALPHA|LOWER|SPECL, ALPHA|UPPER|SPECL, ALPHA|LOWER|SPECL, ALPHA|LOWER, ALPHA|UPPER|SPECL, GRAPH|SPECL, GRAPH|SPECL,
+    GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL, GRAPH|SPECL,
+    GRAPH|SPECL, GRAPH|SPECL, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH, GRAPH
 };
 
-int isalnum(int c) {
-    return tab[c & 0xFF] & (ALPHA | DIGIT);
+unsigned char isalnum(unsigned char c) {
+    return tab[c] & (ALPHA | DIGIT);
 }
 
-int isalpha(int c) {
-    return tab[c & 0xFF] & ALPHA;
+unsigned char isalpha(unsigned char c) {
+    return tab[c] & ALPHA;
 }
 
-int islower(int c) {
-    return tab[c & 0xFF] & LOWER;
+unsigned char islower(unsigned char c) {
+    return tab[c] & LOWER;
 }
 
-int isupper(int c) {
-    return tab[c & 0xFF] & UPPER;
+unsigned char isupper(unsigned char c) {
+    return tab[c] & UPPER;
 }
 
-int isdigit(int c) {
-    return tab[c & 0xFF] & DIGIT;
+unsigned char isdigit(unsigned char c) {
+    return tab[c] & DIGIT;
 }
 
-int isspecl(int c) {
-    return tab[c & 0xFF] & SPECL;
+unsigned char isspecl(unsigned char c) {
+    return tab[c] & SPECL;
 }
 
-int isspace(int c) {
-    return tab[c & 0xFF] & SPACE;
+unsigned char isspace(unsigned char c) {
+    return tab[c] & SPACE;
 }
 
-int ispunct(int c) {
-    return tab[c & 0xFF] & PUNCT;
+unsigned char ispunct(unsigned char c) {
+    return tab[c] & PUNCT;
 }
 
-int isgraph(int c) {
-    return tab[c & 0xFF] & GRAPH;
+unsigned char isgraph(unsigned char c) {
+    return tab[c] & GRAPH;
 }
 
 
diff --git a/lib83/ctype.h b/lib83/ctype.h
index e69de29..d9c3345 100644
--- a/lib83/ctype.h
+++ b/lib83/ctype.h
@@ -0,0 +1,16 @@
+
+#ifndef _CTYPE_H
+#define _CTYPE_H
+
+unsigned char isalnum(unsigned char c);
+unsigned char isalpha(unsigned char c);
+unsigned char islower(unsigned char c);
+unsigned char isupper(unsigned char c);
+unsigned char isdigit(unsigned char c);
+unsigned char isspecl(unsigned char c);
+unsigned char isspace(unsigned char c);
+unsigned char ispunct(unsigned char c);
+unsigned char isgraph(unsigned char c);
+
+#endif
+