Begin adding loading screen

Makefile

@@ -12,7 +12,7 @@ ASM_SRCS = tk2k_startup.s
 C_SRCS = main.c monitor_subroutines.c utility.c \
 		game_graphics.c game_logic.c input.c \
 		line_data.c tiles.c graph_misc_data.c \
-		arrows_pic.c
+		arrows_pic.c loading_screen.c
 
 # Object files
 OBJS = $(ASM_SRCS:%.s=%.o) $(C_SRCS:%.c=%.o)

linker-files/linker.scm

@@ -6,7 +6,7 @@
 	(memory program (address (#x801 . #x1fff)) (type ram)
 ;;;		(section (programStart #x801) (startup #x80e) code switch idata cdata data_init_table))
 		(section (programStart #x801) (startup #x80e) code))
-	(memory displayPage1 (address (#x2000 . #x3fff)) (type ram))
+	(memory displayPage1 (address (#x2000 . #x3fff)) (type ram) (section loadscreen))
 	(memory datamem (address (#x4000 . #x91ff)) (type ram) (section cstack zdata data heap)) ;;; usermem goes from 0x4000 to 0x9FFFF (included), we are splitting it
 	(memory upperData (address (#x9200 . #x9fff)) (type ram) (section switch idata cdata data_init_table))
 	(memory displayPage2 (address (#xa000 . #xbfff)) (type ram))

src/loading_screen.c

@@ -0,0 +1,5 @@
+#include <stdint.h>
+
+__attribute__((section("loadscreen"))) const uint8_t __loading_screen[] = {0xDE, 0xAD, 0xBE, 0xEF};
+#pragma require __loading_screen
+

src/main.c

@@ -33,6 +33,7 @@ void init(void) {
 #define SCORE_TEXT_X 32
 #define SCORE_TEXT_Y 29
 #define SCORE_TEXT_WIDTH 5
+#pragma require __loading_screen
 
 __task int main(void) {
 	uint16_t moves_count;