diff --git a/agb/src/agbabi/memcpy.s b/agb/src/agbabi/memcpy.s
index 08a88b41..b043c325 100644
--- a/agb/src/agbabi/memcpy.s
+++ b/agb/src/agbabi/memcpy.s
@@ -15,17 +15,13 @@
 */
 
     .arm
-    .align 4
+    .align 2
 
     .section .iwram.__aeabi_memcpy, "ax", %progbits
     .global __agbabi_memcpy
 __agbabi_memcpy:
     .global __aeabi_memcpy
 __aeabi_memcpy:
-    // Handle <= 2 byte copies byte-by-byte
-    cmp     r2, #2
-    ble     .Lcopy1
-
     // Check pointer alignment
     eor     r3, r1, r0
     // JoaoBapt carry & sign bit test
@@ -34,9 +30,13 @@ __aeabi_memcpy:
     bcs     .Lcopy2
 
 .Lcopy4:
+    // Handle <= 2 byte copies byte-by-byte
+    cmp     r2, #2
+    ble     .Lcopy1
 
     // Copy half and byte head
     rsb     r3, r0, #4
+    // JoaoBapt carry & sign bit test
     movs    r3, r3, lsl #31
     ldrmib  r3, [r1], #1
     strmib  r3, [r0], #1
@@ -73,6 +73,7 @@ __aeabi_memcpy4:
     bhs     .LcopyWords
 
     // Copy half and byte tail
+    // JoaoBapt carry & sign bit test
     movs    r3, r2, lsl #31
     ldrcsh  r3, [r1], #2
     strcsh  r3, [r0], #2
@@ -83,6 +84,7 @@ __aeabi_memcpy4:
 .Lcopy2:
     // Copy byte head
     tst     r0, #1
+    cmpne   r2, #0
     ldrneb  r3, [r1], #1
     strneb  r3, [r0], #1
     subne   r2, r2, #1