Initial commit

arm9/source/fastClear.s

@@ -0,0 +1,22 @@
+.section ".itcm", "ax"
+.arm
+
+// r0: dst
+// r1: size (multiple of 32)
+.global fastClear
+.type fastClear, %function
+fastClear:
+    push {r4-r8,lr}
+    mov r2, #0
+    mov r3, #0
+    mov r4, #0
+    mov r5, #0
+    mov r6, #0
+    mov r7, #0
+    mov r8, #0
+    mov lr, #0
+1:
+    subs r1, r1, #32
+    stmgeia r0!, {r2-r8,lr}
+    bgt 1b
+    pop {r4-r8,pc}