add patch to get all cards in Ep3

2023-02-17 21:50:13 -08:00
parent d5773b93da
commit ba4a017ffb
1 changed files with 67 additions and 0 deletions
@@ -0,0 +1,67 @@
+# This patch gives you the maximum number of each card in Episode 3 USA.
+
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  .include InitClearCaches
+
+  .include Episode3USAOnly
+
+  stwu   [r1 - 0x20], r1
+  mflr   r0
+  stw    [r1 + 0x24], r0
+  stw    [r1 + 0x10], r31
+  stw    [r1 + 0x14], r30
+  stw    [r1 + 0x18], r29
+  stw    [r1 + 0x1C], r28
+
+  # Ep3PlayerDataSegment* seg = get_player_data_segment(0)
+  lis    r3, 0x802A
+  ori    r3, r3, 0x1BAC
+  mtctr  r3
+  li     r3, 0
+  bctrl
+  mr     r31, r3
+
+  # decrypt_ep3_player_data_segment(seg)
+  lis    r3, 0x802A
+  ori    r3, r3, 0x15BC
+  mtctr  r3
+  mr     r3, r31
+  bctrl
+
+  # Ep3PlayerDataSegment_on_card_obtained(seg, card_id) for each card, 99 times
+  lis    r28, 0x802A
+  ori    r28, r28, 0x17AC
+  li     r30, 1  # r30 = card_id
+obtain_card_99times:
+  li     r29, 99  # r29 = obtain count
+obtain_card_again:
+  mr     r3, r31
+  mr     r4, r30
+  mtctr  r28
+  bctrl
+  subi   r29, r29, 1
+  cmplwi r29, 0
+  bne    obtain_card_again
+  addi   r30, r30, 1
+  cmplwi r30, 0x2F0
+  ble    obtain_card_99times
+
+  # encrypt_ep3_player_data_segment(seg)
+  lis    r3, 0x802A
+  ori    r3, r3, 0x160C
+  mtctr  r3
+  mr     r3, r31
+  bctrl
+
+  lwz    r31, [r1 + 0x10]
+  lwz    r30, [r1 + 0x14]
+  lwz    r29, [r1 + 0x18]
+  lwz    r28, [r1 + 0x1C]
+  lwz    r0, [r1 + 0x24]
+  addi   r1, r1, 0x20
+  mtlr   r0
+  blr