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Patch matching BB battle param tables with raw HP diffs

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Incentive
2026-06-06 21:52:42 -04:00
parent b4a7374fae
commit 942dbbc5b9
2 changed files with 40 additions and 34 deletions
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system/client-functions/PsoPeepsBrutalPeepsHPBB.s
+22 -21
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@@ -14,23 +14,24 @@ start:
push esi
push edi
push ebp
push 0 # [esp] = last matched table base / 0
jmp get_data_ptr
get_data_ptr_ret:
pop ebx # ebx = suffix payload
pop ebx # ebx = suffix payload
mov esi, [ebx] # scan_start
mov edx, [ebx + 4] # scan_end
mov ecx, [ebx + 8] # signature_size
sub edx, ecx # scan limit = end - sig_size
lea edi, [ebx + 16] # signature ptr
mov esi, [ebx] # scan_start
scan_again:
mov edx, [ebx + 4] # scan_end
mov ecx, [ebx + 8] # signature_size
sub edx, ecx # scan limit = end - sig_size
cmp esi, edx
ja not_found
ja return
xor ebp, ebp
lea edi, [ebx + 16] # signature ptr
compare_again:
cmp ebp, ecx
@@ -48,32 +49,32 @@ next_candidate:
jmp scan_again
found_table:
# esi = BattleParamEntry_on.dat base
mov ecx, [ebx + 12] # patch entry count
mov edi, [ebx + 8] # signature_size
add edi, ebx
add edi, 16 # patch entries after header+signature
# esi = one matching BattleParam table base
mov [esp], esi # remember last match for return_value
mov ecx, [ebx + 12] # patch entry count
mov edi, [ebx + 8] # signature_size
lea edi, [ebx + edi + 16] # patch entries after header+signature
patch_again:
test ecx, ecx
jz done
jz after_patch
mov edx, [edi] # offset from table base
mov al, [edi + 4] # byte value
mov edx, [edi] # offset from table base
mov al, [edi + 4] # byte value
mov [esi + edx], al
add edi, 5
dec ecx
jmp patch_again
done:
mov eax, esi # return found table base
jmp return
not_found:
xor eax, eax
after_patch:
inc esi # continue scanning after this match
jmp scan_again
return:
mov eax, [esp] # 0 if none found, else last matched base
add esp, 4
pop ebp
pop edi
pop esi