Changed indentation style across the code to make it more readable, added newlines before comments, moved patches to separate functions, made memory operations slightly faster by compiling them with O3 (thanks TuxSH!)

loader/Makefile

@@ -16,7 +16,7 @@ include $(DEVKITARM)/3ds_rules
 # INCLUDES is a list of directories containing header files
 # SPECS is the directory containing the important build and link files
 #---------------------------------------------------------------------------------
-export TARGET		:=	$(shell basename $(CURDIR))
+export TARGET	:=	$(shell basename $(CURDIR))
 BUILD		:=	build
 SOURCES		:=	source source/fatfs source/fatfs/sdmmc
 

loader/source/main.c

@@ -4,9 +4,11 @@
 
 #define PAYLOAD_ADDRESS	0x23F00000
 
-static u32 loadPayload(const char *path){
+static u32 loadPayload(const char *path)
+{
     FIL payload;
     unsigned int br;
+
     if(f_open(&payload, path, FA_READ) == FR_OK)
     {
         f_read(&payload, (void *)PAYLOAD_ADDRESS, f_size(&payload), &br);
@@ -18,7 +20,8 @@ static u32 loadPayload(const char *path){
     return 0;
 }
 
-void main(void){
+void main(void)
+{
     FATFS fs;
     f_mount(&fs, "0:", 1);
 

loader/source/start.s

@@ -12,7 +12,4 @@ _start:
     mcr p15, 0, r0, c7, c6, 0  @ flush D-cache
     mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
 
-    bl main
-
-.die:
-    b .die
+    b main