make compiler happy

src/libsrc/dgr.pla

@@ -265,6 +265,7 @@ end
 asm _dgrSetEvnEvn
 	SEC
 	!byte	$90		; mask CLC
+end
 asm _dgrSetOddEvn
 	CLC
 	; EVEN PIXEL
@@ -284,16 +285,17 @@ asm _dgrSetOddEvn
 	STA	(GBASE),Y
 	STA	$C004		; WRITE MAIN MEM
 	RTS
-end
 
 	; ODD ROW
 ++	LSR
 	TAY
 	BCC	-
+end
 
 asm _dgrSetOddOdd
 	CLC
 	!byte	$B0		; mask SEC
+end
 asm _dgrSetEvnOdd
 	SEC
 	; ODD PIXEL