avr: more work on gui2

- decreased complexitiy by removing guicntl
- changed fonts to allow for storing bitmaps in ressource segment
- add fonts to ressources for display node c03
- added some safety features (check pointers, add magic field to objects etc)
- moved style.asm to device folder

avr/modules/lcd2/ili9341/font12x16.asm

@@ -47,7 +47,7 @@ ili9341Font12x16MonoHandlerFn:
 ili9341Font12x16MonoRenderChar:
   push zl
     push zh
-      rcall ili9341Font12x16GetCharPosInFont         ; (r24, r25, z)
+      rcall ili9341Font12x16GetCharPosInFont         ; (r16, r17, r18, r24, r25)
       ldi r25, 16                                    ; 16 bytes height
 ili9341Font12x16MonoRenderChar_loop1:
         ldi r24, 12                                  ; 12 bits
@@ -92,13 +92,14 @@ ili9341Font12x16MonoRenderChar_loop2end:
 ; @param  R16     character to write
 ; @param  Z pointer to font
 ; @return Z pointer to begin of char data
-; @clobbers r24, r25, z
+; @clobbers r16, r17, r18, r24, r25
 
 ili9341Font12x16GetCharPosInFont:
   mov r24, r16
   adiw zh:zl, FONT_OFFS_FIRSTCHAR
   lpm r24, Z+    ; first char num
-  lpm r25, Z+    ; num of chars
+  lpm r25, Z    ; num of chars
+  sbiw zh:zl, FONT_OFFS_FIRSTCHAR+1
   sub r16, r24
   brcs ili9341Font12x16GetCharPosInFont_ret
   cp r16, r25
@@ -116,6 +117,14 @@ ili9341Font12x16GetCharPosInFont:
   lsr r25       ; x32
   ror r24
 
+  adiw zh:zl, FONT_OFFS_RESSOURCEID_LO
+  lpm r16, Z+
+  lpm r17, Z
+  ldi zl, LOW(RESSOURCE_ADDR*2)
+  ldi zh, HIGH(RESSOURCE_ADDR*2)
+  bigcall RES_GetRessource             ; (r16, r17, r18)
+  ; ignore error here
+
   add zl, r24
   adc zh, r25
 ili9341Font12x16GetCharPosInFont_ret: