Reduced problem on char draw

pat80-io-devices/composite-pal-adapter/software/avr-assembly/character_generator.asm

@@ -37,17 +37,18 @@ draw_char:
 	call update_mem_pointer
 	; The drawing consist of FONT_HEIGHT cycles. Every glyph byte is placed on its own line
 	; on screen. To do this, we place it LINE_COLUMNS bytes after the previous one.
-	ldi HIGH_ACCUM, FONT_HEIGHT
+	clr HIGH_ACCUM
 	draw_char_loop:
 		; Load glyph line byte from program memory (and point to the next)
-		lpm r1, Z+
+		lpm A, Z+
 		; Write glyph line to framebuffer at chunk cursor position (Y)
-		st Y, r1
+		st Y, A
 		; Increment chunk cursor position (Y) to next line of the same char column
 		adiw YH:YL,LINE_COLUMNS
 		; Decrement loop counter and exit if reached 0
-		dec HIGH_ACCUM
-		brne draw_char_loop
+		inc HIGH_ACCUM
+		cpi HIGH_ACCUM, FONT_HEIGHT
+		brlo draw_char_loop
 
 	; Char drawing is complete. Increment cursor position
 	inc POS_COLUMN

pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm

@@ -121,16 +121,53 @@ main:
 			; wait
 			ser r19
 			dc_wait_loop_1:
-				ldi r24, 64
+				ser r16
 				dc_wait_loop_2:
-					dec r24
+					dec r16
 					brne dc_wait_loop_2
 				dec r19
 				brne dc_wait_loop_1
+			; wait
+			; ser r19
+			; dc_wait_loop_a1:
+			; 	ser r16
+			; 	dc_wait_loop_a2:
+			; 		dec r16
+			; 		brne dc_wait_loop_a2
+			; 	dec r19
+			; 	brne dc_wait_loop_a1
+			; ; wait
+			; ser r19
+			; dc_wait_loop_s1:
+			; 	ser r16
+			; 	dc_wait_loop_s2:
+			; 		dec r16
+			; 		brne dc_wait_loop_s2
+			; 	dec r19
+			; 	brne dc_wait_loop_s1
+			; ; wait
+			; ser r19
+			; dc_wait_loop_d1:
+			; 	ser r16
+			; 	dc_wait_loop_d2:
+			; 		dec r16
+			; 		brne dc_wait_loop_d2
+			; 	dec r19
+			; 	brne dc_wait_loop_d1
+			; ; wait
+			; ser r19
+			; dc_wait_loop_f1:
+			; 	ser r16
+			; 	dc_wait_loop_f2:
+			; 		dec r16
+			; 		brne dc_wait_loop_f2
+			; 	dec r19
+			; 	brne dc_wait_loop_f1
+
 			inc r18
 			cpi r18, 0x5B
 			brne draw_chars
-		; call draw_carriage_return
+		call draw_carriage_return
 		jmp dctest