Corrine
124 lines
3.9 KiB
ArmAsm
124 lines
3.9 KiB
ArmAsm
# Original patch by Soly, in Blue Burst Patch Project
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# https://github.com/Solybum/Blue-Burst-Patch-Project
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# GC and Xbox ports by fuzziqersoftware
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.meta visibility="all"
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.meta name="No rare selling"
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.meta description="Stops you from\naccidentally\nselling rares\nto shops"
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entry_ptr:
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reloc0:
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.offsetof start
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.versions 3OJ2 3OJ3 3OJ4 3OJ5 3OE0 3OE1 3OE2 3OP0
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start:
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.include WriteCodeBlocks
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# See comments in the 59NL version of this patch for details on how it works.
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.data <VERS 0x8010DE70 0x8010E070 0x8010E1BC 0x8010DFFC 0x8010E114 0x8010E114 0x8010E00C 0x8010E1F0>
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.data 0x00000004
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li r29, 0
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.data <VERS 0x8010DE5C 0x8010E05C 0x8010E1A8 0x8010DFE8 0x8010E100 0x8010E100 0x8010DFF8 0x8010E1DC>
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.data 0x00000004
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li r29, 0
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.data <VERS 0x8010DFA4 0x8010E1A4 0x8010E2F0 0x8010E130 0x8010E248 0x8010E248 0x8010E140 0x8010E324>
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.data 0x00000004
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li r29, 0
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.label tool_check_hook_loc, 0x800041A0
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.data tool_check_hook_loc
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.deltaof tool_check_hook_start, tool_check_hook_end
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.address tool_check_hook_loc
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tool_check_hook_start:
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lwz r29, [r3 + 0x10] # Flags
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xori r29, r29, 0x0080
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andi. r29, r29, 0x0080
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beqlr # Not rare; r29 (returned price) is zero already
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lwz r29, [r3 + 0x0C] # Cost
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blr
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tool_check_hook_end:
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.label tool_check_hook_call, <VERS 0x8010E118 0x8010E318 0x8010E464 0x8010E2A4 0x8010E3BC 0x8010E3BC 0x8010E2B4 0x8010E498>
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.data tool_check_hook_call
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.data 0x00000004
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.address tool_check_hook_call
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bl tool_check_hook_start
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.data 0x00000000
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.data 0x00000000
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.versions 4OED 4OEU 4OJB 4OJD 4OJU 4OPD 4OPU
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start:
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.include WriteCodeBlocks
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# See comments in the 59NL version of this patch for details on how it works.
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.data <VERS 0x0017DEA6 0x0017DED6 0x0017DD36 0x0017DEB6 0x0017DF66 0x0017DEC6 0x0017DE96>
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.data 0x00000004
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.data 0x00000000
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.data <VERS 0x0017DE8C 0x0017DEBC 0x0017DD1C 0x0017DE9C 0x0017DF4C 0x0017DEAC 0x0017DE7C>
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.data 0x00000004
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.data 0x00000000
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.data <VERS 0x0017E04E 0x0017E07E 0x0017DEDE 0x0017E05E 0x0017E10E 0x0017E06E 0x0017E03E>
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.data 0x00000005
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.binary E98E0C0000
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.data <VERS 0x0017ECE1 0x0017ED11 0x0017EB71 0x0017ECF1 0x0017EDA1 0x0017ED01 0x0017ECD1>
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.deltaof tool_check_start, tool_check_end
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tool_check_start:
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xor edi, edi
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test byte [eax + 0x10], 0x80
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cmovz edi, [eax + 0x0C]
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.binary E995F3FFFF
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tool_check_end:
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.data 0x00000000
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.data 0x00000000
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.versions 50YJ 59NJ 59NL
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start:
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# This works by setting the item price to zero if it's rare, which causes the game to prevent you from selling the
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# item. For armors and weapons, this is easy because there are easily-patchable opcodes within branches that return a
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# constant price for rare items.
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xor eax, eax
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mov [<VERS 0x005D12D7 0x005D258F 0x005D25AF>], eax # Rare armors
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mov [<VERS 0x005D1419 0x005D26D1 0x005D26F1>], eax # Unidentified weapons
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mov [<VERS 0x005D142E 0x005D26E6 0x005D2706>], eax # Rare weapons
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# For tools, it's harder to implement this, because the price comes from the ItemPMT tools table and there is no
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# branch for rares. Still, we can add a branch to a stub to handle tools.
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pop ecx
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push 5
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push <VERS 0x005D1250 0x005D2508 0x005D2528>
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call get_code_size
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.deltaof patch_code, patch_code_end
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get_code_size:
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pop eax
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push dword [eax]
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call patch_code_end
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patch_code:
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# TODO: It'd be nice to have something like WriteJumpToAndFromCode, since this hook is supposed to return to a
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# different place than where it was called, hence this mov [esp].
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mov dword [esp], <VERS 0x005D129E 0x005D2556 0x005D2576>
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xor edi, edi
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test byte [eax + 0x14], 0x80 # flags & 0x80 = is rare
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cmovz edi, [eax + 0x10] # Use price from table if not rare
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ret
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patch_code_end:
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push ecx
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.include WriteCallToCode
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