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Better documenting for GetMachinePrice and TechnicalMachinePrices.

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This commit is contained in:
Marcus Huderle 2015-01-24 12:41:20 -08:00
parent 5b7c8541db
commit 3cf945bad4
3 changed files with 37 additions and 12 deletions
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30
data/tm_prices.asm
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@ -1,7 +1,27 @@
TechnicalMachinePrices: ; 7bfa7 (1e:7fa7)
; In thousands (nybbles).
db $32, $21, $34, $24, $34
db $21, $45, $55, $32, $32
db $55, $52, $54, $52, $41
db $21, $12, $42, $25, $24
db $22, $52, $24, $34, $42
dn 3, 2 ; TM_01, TM_02
dn 2, 1 ; TM_03, TM_04
dn 3, 4 ; TM_05, TM_06
dn 2, 4 ; TM_07, TM_08
dn 3, 4 ; TM_09, TM_10
dn 2, 1 ; TM_11, TM_12
dn 4, 5 ; TM_13, TM_14
dn 5, 5 ; TM_15, TM_16
dn 3, 2 ; TM_17, TM_18
dn 3, 2 ; TM_19, TM_20
dn 5, 5 ; TM_21, TM_22
dn 5, 2 ; TM_23, TM_24
dn 5, 4 ; TM_25, TM_26
dn 5, 2 ; TM_27, TM_28
dn 4, 1 ; TM_29, TM_30
dn 2, 1 ; TM_31, TM_32
dn 1, 2 ; TM_33, TM_34
dn 4, 2 ; TM_35, TM_36
dn 2, 5 ; TM_37, TM_38
dn 2, 4 ; TM_39, TM_40
dn 2, 2 ; TM_41, TM_42
dn 5, 2 ; TM_43, TM_44
dn 2, 4 ; TM_45, TM_46
dn 3, 4 ; TM_47, TM_48
dn 4, 2 ; TM_49, TM_50

11
engine/items/tm_prices.asm
View file

@ -1,5 +1,8 @@
GetMachinePrice: ; 7bf86 (1e:7f86)
ld a, [wcf91]
; Input: [wcf91] = Item Id of a TM
; Output: Stores the 2-byte TM price in [H_DOWNARROWBLINKCNT1] and [H_DOWNARROWBLINKCNT2]
; as a BCD
ld a, [wcf91] ; a contains TM item id
sub TM_01
ret c
ld d, a
@ -8,11 +11,11 @@ GetMachinePrice: ; 7bf86 (1e:7f86)
ld c, a
ld b, 0
add hl, bc
ld a, [hl]
ld a, [hl] ; a contains byte whose high or low nybble is the TM price (in thousands)
srl d
jr nc, .asm_7bf9d
jr nc, .highNybbleIsPrice ; is TM id odd?
swap a
.asm_7bf9d
.highNybbleIsPrice
and $f0
ld [H_DOWNARROWBLINKCNT2], a ; $ff8c
xor a

8
home.asm
View file

@ -3335,6 +3335,8 @@ GetName:: ; 376b (0:376b)
ret
GetItemPrice:: ; 37df (0:37df)
; Stores item's price as BCD in [H_DOWNARROWBLINKCNT1] and [[H_DOWNARROWBLINKCNT2]
; Input: [wcf91] = item id
ld a, [H_LOADEDROMBANK]
push af
ld a, [wListMenuID] ; wListMenuID
@ -3349,9 +3351,9 @@ GetItemPrice:: ; 37df (0:37df)
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [wcf91]
ld a, [wcf91] ; a contains item id
cp HM_01
jr nc, .asm_3812
jr nc, .getTMPrice
ld bc, $3
.asm_3802
add hl, bc
@ -3365,7 +3367,7 @@ GetItemPrice:: ; 37df (0:37df)
ld a, [hl]
ld [H_DOWNARROWBLINKCNT1], a ; $ff8b
jr .asm_381c
.asm_3812
.getTMPrice
ld a, Bank(GetMachinePrice)
ld [H_LOADEDROMBANK], a
ld [$2000], a