Cleanup

README.md

@@ -118,7 +118,6 @@ A device that works like a NES controller, each button is a bit from a single by
 
 - Includes
 - Defines
-- Print unused labels
 
 ## Refs
 

assembler.c

@@ -17,17 +17,17 @@ typedef unsigned short Uint16;
 typedef signed short Sint16;
 
 typedef struct {
-	int ptr;
-	Uint8 data[65536];
+	Uint8 data[256 * 256];
+	Uint16 ptr;
 } Program;
 
 typedef struct {
+	Uint8 len, length[16], size, refs;
 	char name[64], params[16][64];
-	Uint8 len, length[16], size;
 } Macro;
 
 typedef struct {
-	Uint8 len, offset;
+	Uint8 len, offset, refs;
 	Uint16 addr;
 	char name[64];
 	Macro *macro;
@@ -222,6 +222,7 @@ makelabel(char *name, Uint16 addr, Uint8 len, Macro *m)
 	l = &labels[labelslen++];
 	l->addr = addr;
 	l->len = len;
+	l->refs = 0;
 	scpy(name, l->name, 64);
 	if(m)
 		l->macro = m;
@@ -246,9 +247,10 @@ makevariable(char *id, Uint16 *addr, FILE *f)
 	Macro *m = NULL;
 	fscanf(f, "%s", wv);
 	origin = *addr;
-	if((m = findmacro(wv)))
+	if((m = findmacro(wv))) {
 		len = m->size;
-	else
+		m->refs++;
+	} else
 		len = shex(wv);
 	*addr += len;
 	return makelabel(id, origin, len, m);
@@ -349,17 +351,29 @@ pass2(FILE *f)
 		else if(w[0] == '+' && sihx(w + 1) && slen(w + 1) == 4) pushshort((Sint16)shex(w + 1), 1);
 		else if(w[0] == '-' && sihx(w + 1) && slen(w + 1) == 2) pushbyte((Sint8)(shex(w + 1) * -1), 1);
 		else if(w[0] == '-' && sihx(w + 1) && slen(w + 1) == 4) pushshort((Sint16)(shex(w + 1) * -1), 1);
-		else if(w[0] == '=' && (l = findlabel(w + 1)) && l->len){ pushshort(findlabeladdr(w+1), 1); pushbyte(findopcode(findlabellen(w+1) == 2 ? "STR2" : "STR"), 0); }
-		else if(w[0] == '~' && (l = findlabel(w + 1)) && l->len){ pushshort(findlabeladdr(w+1), 1); pushbyte(findopcode(findlabellen(w+1) == 2 ? "LDR2" : "LDR"), 0); }
+		else if(w[0] == '=' && (l = findlabel(w + 1)) && l->len){ pushshort(findlabeladdr(w+1), 1); pushbyte(findopcode(findlabellen(w+1) == 2 ? "STR2" : "STR"), 0); l->refs++;}
+		else if(w[0] == '~' && (l = findlabel(w + 1)) && l->len){ pushshort(findlabeladdr(w+1), 1); pushbyte(findopcode(findlabellen(w+1) == 2 ? "LDR2" : "LDR"), 0); l->refs++;}
 		else if(w[0] == '=' && sihx(w + 1)) { pushshort(shex(w + 1), 1); pushbyte(findopcode("STR2"), 0); }
 		else if(w[0] == '~' && sihx(w + 1)) { pushshort(shex(w + 1), 1); pushbyte(findopcode("LDR2"), 0); }
-		else if((l = findlabel(w + 1))) pushshort(findlabeladdr(w+1), w[0] == ',');
+		else if((l = findlabel(w + 1))) { pushshort(findlabeladdr(w+1), w[0] == ','); l->refs++; }
 		else return error("Unknown label in second pass", w);
 		/* clang-format on */
 	}
 	return 1;
 }
 
+void
+cleanup(void)
+{
+	int i;
+	for(i = 0; i < labelslen; ++i)
+		if(!labels[i].refs)
+			printf("--- Unused label: %s\n", labels[i].name);
+	for(i = 0; i < macroslen; ++i)
+		if(!macros[i].refs)
+			printf("--- Unused macro: %s\n", macros[i].name);
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -373,5 +387,6 @@ main(int argc, char *argv[])
 	fwrite(p.data, sizeof(p.data), 1, fopen(argv[2], "wb"));
 	fclose(f);
 	printf("Assembled %s.\n\n", argv[2]);
+	cleanup();
 	return 0;
 }

build.sh

@@ -20,5 +20,5 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werr
 # cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
 
 # run
-./bin/assembler examples/gui.hover.usm bin/boot.rom
+./bin/assembler examples/dev.mouse.usm bin/boot.rom
 ./bin/emulator bin/boot.rom

examples/dev.mouse.usm

@@ -10,7 +10,6 @@
 ;label Label2d
 ;cat Point2d 
 ;mouse Point2d
-;pos Point2d
 ;color 1
 ;timer 1
 
@@ -106,9 +105,7 @@ RTS
 	@animate-polycat-tail-next2
 	( look-at )
 	~mouse.x ~cat.x #0008 ADD2 GTH2 ,animate-polycat-right ROT JMP? POP2
-	@animate-polycat-left
 		~mouse.y ~cat.y #0008 ADD2 GTH2 ,animate-polycat-left-down ROT JMP? POP2
-		@animate-polycat-left-up 
 			,polycat #0040 ADD2 ~cat.x ~cat.y #0008 ADD2 ,draw-sprite-chr JSR
 			,polycat #0050 ADD2 ~cat.x #0008 ADD2 ~cat.y #0008 ADD2 ,draw-sprite-chr JSR
 		RTS
@@ -118,7 +115,6 @@ RTS
 		RTS
 	@animate-polycat-right
 		~mouse.y ~cat.y #0008 ADD2 GTH2 ,animate-polycat-right-down ROT JMP? POP2
-		@animate-polycat-right-up 
 			,polycat #0060 ADD2 ~cat.x ~cat.y #0008 ADD2 ,draw-sprite-chr JSR
 			,polycat #0070 ADD2 ~cat.x #0008 ADD2 ~cat.y #0008 ADD2 ,draw-sprite-chr JSR
 		RTS
@@ -217,9 +213,6 @@ RTS
 	0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
 ]
 
-@chord0_text   [ no chord ] <1 .00
-@chord1_text   [ chord 1_ ] <1 .00
-@chord2_text   [ chord _2 ] <1 .00
 @mouse0_text   [ no click ] <1 .00
 @mouse1_text   [ mouse 1_ ] <1 .00
 @mouse2_text   [ mouse _2 ] <1 .00

examples/gui.hover.usm

@@ -4,8 +4,6 @@
 &Sprite { pad 8 x 2 y 2 addr 2 color 1 }
 &Mouse  { x 2 y 2 state 1 chord 1 }
 
-&Label2d { x 2 y 2 color 1 addr 2 }
-&Picture2d { x 2 y 2 width 2 height 2 color 1 addr 2 }
 &Rect2d { x1 2 y1 2 x2 2 y2 2 }
 &Point2d { x 2 y 2 }
 
@@ -95,11 +93,9 @@ RTS
 RTS
 
 @clear_icn   [ 0000 0000 0000 0000 ]
-@pointer_icn  [ 80c0 e0f0 f8e0 1000 ]
+@pointer_icn [ 80c0 e0f0 f8e0 1000 ]
 @hand_icn    [ 4040 4070 f8f8 f870 ]
 
-@text [ Label Text ] <1 .00 ( add characters to memory )
-
 |d000 @ERROR BRK 
 
 |FF10 ;dev/screen Screen

examples/gui.picture.usm

@@ -4,7 +4,6 @@
 &Sprite { pad 8 x 2 y 2 addr 2 color 1 }
 
 &Picture2d { x 2 y 2 width 2 height 2 color 1 addr 2 }
-&Point2d { x 2 y 2 }
 
 ;pict Picture2d
 

examples/gui.shapes.usm

@@ -6,13 +6,12 @@
 &Label2d { x 2 y 2 color 1 addr 2 }
 &Picture2d { x 2 y 2 width 2 height 2 color 1 addr 2 }
 &Rect2d { x1 2 y1 2 x2 2 y2 2 }
-&Point2d { x 2 y 2 }
 
 ;label Label2d
 ;pict Picture2d
 ;rect Rect2d
 
-;color 1 ;x1 2 ;x2 2 ;y1 2 ;y2 2
+;color 1
 
 |0100 @RESET