add patch to get VIP card on Ep3

2022-11-04 17:27:12 -07:00
parent 51c13b8462
commit 759442ee62
1 changed files with 32 additions and 0 deletions
@@ -0,0 +1,32 @@
+# This gives you a VIP card in PSO Episode 3 USA.
+
+# This patch is only for PSO Episode 3 USA, which means it requires the
+# EnableEpisode3SendFunctionCall option to be enabled in config.json. If that
+# option is disabled, the Patches menu won't appear for the client. If this
+# patch is run on a different client version, it will do nothing.
+
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  # Note: We don't actually need this for Episode 3, since all Episode 3
+  # versions correctly clear the caches before running code from a B2 command.
+  # But we leave it in to be consistent with patches for Episodes 1&2.
+  .include InitClearCaches
+
+  # First, make sure this is actually Episode 3 USA; if not, do nothing
+  lis    r4, 0x4750
+  ori    r4, r4, 0x5345 # 'GPSE'
+  lis    r5, 0x8000
+  lwz    r5, [r5]
+  li     r3, -1
+  cmp    r4, r5
+  bnelr
+
+  # Call seq_var_set(7000) - this gives the local player a VIP card
+  li     r3, 7000
+  lis    r0, 0x8010
+  ori    r0, r0, 0xBD18
+  mtctr  r0
+  bctr