add DCv2 item loss prevention patch

system/client-functions/ItemLossPrevention/ItemLossPrevention.2OEF.patch.s

@@ -0,0 +1,60 @@
+.meta name="No item loss"
+.meta description="Don't lose items if\nyou don't log off\nnormally"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+start:
+  .include  WriteCodeBlocksDC
+
+  .align    4
+  .data     0x8C16BDFE
+  .data     2
+  sett
+
+  .align    4
+  .data     0x8C17F1DE
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180DB0
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C181C92
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C1834D2
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C182BC8
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180D0C
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C181BC6
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C0280AA
+  .data     6
+  .binary   090014A00900
+  # nop
+  # bs        +0x2C  # 8C0280D8
+  # nop
+
+  .align    4
+  .data     0x00000000
+  .data     0x00000000

system/client-functions/ItemLossPrevention/ItemLossPrevention.2OJ5.patch.s

@@ -0,0 +1,60 @@
+.meta name="No item loss"
+.meta description="Don't lose items if\nyou don't log off\nnormally"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+start:
+  .include  WriteCodeBlocksDC
+
+  .align    4
+  .data     0x8C16BDFE
+  .data     2
+  sett
+
+  .align    4
+  .data     0x8C17F1DE
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180DB0
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C181C92
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C1834D2
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C182BC8
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180D0C
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C181BC6
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C0280AA
+  .data     6
+  .binary   090014A00900
+  # nop
+  # bs        +0x2C
+  # nop
+
+  .align    4
+  .data     0x00000000
+  .data     0x00000000

system/client-functions/ItemLossPrevention/ItemLossPrevention.2OJF.patch.s

@@ -0,0 +1,60 @@
+.meta name="No item loss"
+.meta description="Don't lose items if\nyou don't log off\nnormally"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+start:
+  .include  WriteCodeBlocksDC
+
+  .align    4
+  .data     0x8C16B50A
+  .data     2
+  sett
+
+  .align    4
+  .data     0x8C17E73A
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180100
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180F96
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C1825F2
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C181DC0
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C18005C
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180ECA
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C028276
+  .data     6
+  .binary   090014A00900
+  # nop
+  # bs        +0x2C
+  # nop
+
+  .align    4
+  .data     0x00000000
+  .data     0x00000000

system/client-functions/ItemLossPrevention/ItemLossPrevention.2OPF.patch.s

@@ -0,0 +1,60 @@
+.meta name="No item loss"
+.meta description="Don't lose items if\nyou don't log off\nnormally"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+start:
+  .include  WriteCodeBlocksDC
+
+  .align    4
+  .data     0x8C16BA22
+  .data     2
+  sett
+
+  .align    4
+  .data     0x8C17EC76
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C180848
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C18172A
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C182F6A
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C182660
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C1807A4
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C18165E
+  .data     2
+  nop
+
+  .align    4
+  .data     0x8C0280AA
+  .data     6
+  .binary   090014A00900
+  # nop
+  # bs        +0x2C  # 8C0280D8
+  # nop
+
+  .align    4
+  .data     0x00000000
+  .data     0x00000000

system/client-functions/System/WriteCodeBlocksDC.sh4.inc.s

@@ -1,21 +1,23 @@
   mova    r0, [first_patch_header]
-  mov     r7, r0     # r7 = read ptr
+  mov     r7, r0       # r7 = read ptr
   xor     r3, r3
   dec     r3
-  shl     r3, 2      # r3 = 0xFFFFFFFC (mask for aligning r7)
+  shl     r3, 2        # r3 = 0xFFFFFFFC (mask for aligning r7)
 apply_patch:
   add     r7, 3
-  and     r7, r3     # r7 = (r7 + 3) & (~3) (align to 4-byte boundary)
-  mov.l   r4, [r7]+  # r4 = dest addr
+  and     r7, r3       # r7 = (r7 + 3) & (~3) (align to 4-byte boundary)
+  mov.l   r4, [r7]+    # r4 = dest addr
   mov.l   r5, [r7]+
-  add     r5, r4     # r5 = dest end ptr (dest addr + size)
+  add     r5, r4       # r5 = dest end ptr (dest addr + size)
+  cmpeq   r4, r5       # if (size == 0) return
+  bt      done
 
 again:
   cmpeq   r4, r5
-  bt      done       # if (r4 == r5) break
+  bt      apply_patch  # if (r4 == r5) done with the patch; go to next header
   mov.b   r0, [r7]+
-  mov.b   [r4], r0   # *(r4) = *(r7++);
-  bs      again      # r4++; continue
+  mov.b   [r4], r0     # *(r4) = *(r7++);
+  bs      again        # r4++; continue
   add     r4, 1
 
 done: