@@ -63,7 +63,6 @@ pushbyte(Uint8 b, int lit)

 void

 pushshort(Uint16 s, int lit)

 {

-	printf("%04x[%d]\n", s, lit);

 	if(lit) {

 		pushbyte(0x03, 0);

 		pushbyte(0x02, 0);

@@ -4,20 +4,24 @@

 :dev/w fff9 ( std write port )

 ;x_ 2 ;y_ 2 ;x0 2 ;y0 2 ;x1 2 ;y1 2 ;color 1

-

 ;dx 2 ;dy 2 ;err 2 ;err2 2

 |0100 @RESET

 	( set dev/write to screen ) 

 	,01 ,dev/w STR 

+

 	,01 ,color STR

+	+0030 ,x0 STR^ +0040 ,y0 STR^

+	+0050 ,x1 STR^ +0060 ,y1 STR^

+

+	,line JSR

-	( init positions )

-	,0020 ,x0 STR^ ,0018 ,y0 STR^

-	,0060 ,x1 STR^ ,0048 ,y1 STR^

-	,x0 LDR^ ,x_ STR^ ,y0 LDR^ ,y_ STR^

+	,02 ,color STR

+	+0020 ,x0 STR^ +0010 ,y0 STR^

+	+0060 ,x1 STR^ +0070 ,y1 STR^

+	,line JSR

 	( draw control points )

 	,02 ,color STR

@@ -28,6 +32,25 @@

 BRK

+@line

+	,x0 LDR^ ,x_ STR^ ,y0 LDR^ ,y_ STR^                   ( start at x0,y0 )

+	,x1 LDR^ ,x0 LDR^ ,diff16sub JSR ,dx STR^             ( int dx = abs[x1 - x0] )

+	,y1 LDR^ ,y0 LDR^ ,diff16sub JSR -0001 MUL!^ ,dy STR^ ( int dy = -abs[y1 - y0] )

+	,dx LDR^ ,dy LDR^ ADD!^ ,err STR^                     ( int err = dx + dy, e2; )

+	@loop

+	,x_ LDR^ ,y_ LDR^ ,putpixel JSR                       ( draw )

+	,err LDR^ +0002 MUL!^ ,err2 STR^                      ( e2 = 2 * err; )

+	,err2 LDR^ ,dy LDR^ LTH!^ ,continue1 ROT JMP? POP^ 	  ( e2 >= dy )

+		,err LDR^ ,dy LDR^ ADD!^ ,err STR^ 				  ( err += dy; )

+		,x_ LDR^ +0001 ADD!^ ,x_ STR^                     ( y0 += y0 < y1 ? 1 : -1; )

+	@continue1

+	,err2 LDR^ ,dx LDR^ GTH!^ ,continue2 ROT JMP? POP^    ( e2 <= dx )

+		,err LDR^ ,dx LDR^ ADD!^ ,err STR^                ( err += dx; )

+		,y_ LDR^ +0001 ADD!^ ,y_ STR^                     ( y0 += y0 < y1 ? 1 : -1; )

+	@continue2

+	,x_ LDR^ ,x1 LDR^ LTH!^ ,loop ROT JMP? POP^           ( loop )

+	RTS

+

 @redraw

 	,0000 IOW^

 	,0000 IOW^