Minor changes

Makefile

@@ -1,9 +1,5 @@
-PREFIX = arm-none-eabi-
-CC = $(PREFIX)gcc
-AS = $(PREFIX)as
-
 TARGET ?= jdm-v3
-PROF ?= acc
+PROF ?= glo
 FORCE ?=
 
 .SECONDARY: # this prevents object files from being removed
@@ -11,6 +7,10 @@ FORCE ?=
 
 JD_CORE = jacdac-core
 
+PREFIX = arm-none-eabi-
+CC = $(PREFIX)gcc
+AS = $(PREFIX)as
+
 WARNFLAGS = -Wall -Wno-strict-aliasing
 CFLAGS = $(DEFINES) \
 	-mthumb -mfloat-abi=soft  \

src/light.c

@@ -132,6 +132,7 @@ static int isin(uint8_t theta) {
 }
 
 static bool is_enabled(srv_t *state) {
+    // TODO check if all pixels are zero
     return state->numpixels > 0 && state->intensity > 0;
 }