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-rwxr-xr-xengine/items/tm_prices.asm4
1 files changed, 2 insertions, 2 deletions
diff --git a/engine/items/tm_prices.asm b/engine/items/tm_prices.asm
index 85531bab..502191d5 100755
--- a/engine/items/tm_prices.asm
+++ b/engine/items/tm_prices.asm
@@ -2,8 +2,8 @@ GetMachinePrice::
; Input: [wcf91] = Item Id of a TM
; Output: Stores the TM price at hItemPrice
ld a, [wcf91] ; a contains TM item id
- sub TM_01
- ret c
+ sub TM01 ; underflows below 0 for HM items (before TM items)
+ ret c ; HMs are priceless
ld d, a
ld hl, TechnicalMachinePrices
srl a