Add libagbsyscall

asm/libagbsyscall.s

@@ -0,0 +1,44 @@
+	.include "asm/macros.inc"
+
+	.syntax unified
+
+	.text
+
+	thumb_func_start ArcTan2
+ArcTan2:
+	swi 0xA
+	bx lr
+	thumb_func_end ArcTan2
+
+	thumb_func_start CpuSet
+CpuSet:
+	swi 0xB
+	bx lr
+	thumb_func_end CpuSet
+
+	thumb_func_start LZ77UnCompWram
+LZ77UnCompWram:
+	swi 0x11
+	bx lr
+	thumb_func_end LZ77UnCompWram
+
+	thumb_func_start RegisterRamReset
+RegisterRamReset:
+	swi 0x1
+	bx lr
+	thumb_func_end RegisterRamReset
+
+	thumb_func_start Sqrt
+Sqrt:
+	swi 0x8
+	bx lr
+	thumb_func_end Sqrt
+
+	thumb_func_start VBlankIntrWait
+VBlankIntrWait:
+	movs r2, 0
+	swi 0x5
+	bx lr
+	thumb_func_end VBlankIntrWait
+
+	.align 2, 0 @ Don't pad with nop.

asm/rom.s

@@ -1,3 +1,3 @@
     .text
 
-.incbin "baserom.gba", 0x554D4, 0x666AFC
+.incbin "baserom.gba", 0x554F0, 0x666AE0

ld_script.ld

@@ -29,6 +29,7 @@ SECTIONS
         src/m4a_2.o(.text);
         asm/m4a_3.o(.text);
         src/m4a_4.o(.text);
+        asm/libagbsyscall.o(.text);
         asm/rom.o(.text);
     }=0xFF
 }