1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
|
; Functions dealing with palettes.
UpdatePalsIfCGB::
; update bgp data from wBGPals2
; update obp data from wOBPals2
; return carry if successful
; check cgb
ldh a, [hCGB]
and a
ret z
UpdateCGBPals::
; return carry if successful
; any pals to update?
ldh a, [hCGBPalUpdate]
and a
ret z
; fallthrough
ForceUpdateCGBPals::
ldh a, [rSVBK]
push af
ld a, BANK(wBGPals2)
ldh [rSVBK], a
ld hl, wBGPals2
; copy 8 pals to bgpd
ld a, 1 << rBGPI_AUTO_INCREMENT
ldh [rBGPI], a
ld c, LOW(rBGPD)
ld b, 8 / 2
.bgp
rept (1 palettes) * 2
ld a, [hli]
ldh [c], a
endr
dec b
jr nz, .bgp
; hl is now wOBPals2
; copy 8 pals to obpd
ld a, 1 << rOBPI_AUTO_INCREMENT
ldh [rOBPI], a
ld c, LOW(rOBPD)
ld b, 8 / 2
.obp
rept (1 palettes) * 2
ld a, [hli]
ldh [c], a
endr
dec b
jr nz, .obp
pop af
ldh [rSVBK], a
; clear pal update queue
xor a
ldh [hCGBPalUpdate], a
scf
ret
DmgToCgbBGPals::
; exists to forego reinserting cgb-converted image data
; input: a -> bgp
ldh [rBGP], a
push af
; Don't need to be here if DMG
ldh a, [hCGB]
and a
jr z, .end
push hl
push de
push bc
ldh a, [rSVBK]
push af
ld a, BANK(wBGPals2)
ldh [rSVBK], a
; copy & reorder bg pal buffer
ld hl, wBGPals2 ; to
ld de, wBGPals1 ; from
; order
ldh a, [rBGP]
ld b, a
; all pals
ld c, 8
call CopyPals
; request pal update
ld a, TRUE
ldh [hCGBPalUpdate], a
pop af
ldh [rSVBK], a
pop bc
pop de
pop hl
.end
pop af
ret
DmgToCgbObjPals::
; exists to forego reinserting cgb-converted image data
; input: d -> obp1
; e -> obp2
ld a, e
ldh [rOBP0], a
ld a, d
ldh [rOBP1], a
ldh a, [hCGB]
and a
ret z
push hl
push de
push bc
ldh a, [rSVBK]
push af
ld a, BANK(wOBPals2)
ldh [rSVBK], a
; copy & reorder obj pal buffer
ld hl, wOBPals2 ; to
ld de, wOBPals1 ; from
; order
ldh a, [rOBP0]
ld b, a
; all pals
ld c, 8
call CopyPals
; request pal update
ld a, TRUE
ldh [hCGBPalUpdate], a
pop af
ldh [rSVBK], a
pop bc
pop de
pop hl
ret
DmgToCgbObjPal0::
ldh [rOBP0], a
push af
; Don't need to be here if not CGB
ldh a, [hCGB]
and a
jr z, .dmg
push hl
push de
push bc
ldh a, [rSVBK]
push af
ld a, BANK(wOBPals2)
ldh [rSVBK], a
ld hl, wOBPals2 palette 0
ld de, wOBPals1 palette 0
ldh a, [rOBP0]
ld b, a
ld c, 1
call CopyPals
ld a, TRUE
ldh [hCGBPalUpdate], a
pop af
ldh [rSVBK], a
pop bc
pop de
pop hl
.dmg
pop af
ret
DmgToCgbObjPal1::
ldh [rOBP1], a
push af
ldh a, [hCGB]
and a
jr z, .dmg
push hl
push de
push bc
ldh a, [rSVBK]
push af
ld a, BANK(wOBPals2)
ldh [rSVBK], a
ld hl, wOBPals2 palette 1
ld de, wOBPals1 palette 1
ldh a, [rOBP1]
ld b, a
ld c, 1
call CopyPals
ld a, TRUE
ldh [hCGBPalUpdate], a
pop af
ldh [rSVBK], a
pop bc
pop de
pop hl
.dmg
pop af
ret
CopyPals::
; copy c palettes in order b from de to hl
push bc
ld c, NUM_PAL_COLORS
.loop
push de
push hl
; get pal color
ld a, b
maskbits 1 << PAL_COLOR_SIZE
; 2 bytes per color
add a
ld l, a
ld h, 0
add hl, de
ld e, [hl]
inc hl
ld d, [hl]
; dest
pop hl
; write color
ld [hl], e
inc hl
ld [hl], d
inc hl
; next pal color
rept PAL_COLOR_SIZE
srl b
endr
; source
pop de
; done pal?
dec c
jr nz, .loop
; de += 8 (next pal)
ld a, PALETTE_SIZE
add e
jr nc, .ok
inc d
.ok
ld e, a
; how many more pals?
pop bc
dec c
jr nz, CopyPals
ret
ClearVBank1::
ldh a, [hCGB]
and a
ret z
ld a, 1
ldh [rVBK], a
ld hl, VRAM_Begin
ld bc, VRAM_End - VRAM_Begin
xor a
call ByteFill
ld a, 0
ldh [rVBK], a
ret
GSReloadPalettes:: ; dummied out
ret
ReloadSpritesNoPalettes::
ldh a, [hCGB]
and a
ret z
ldh a, [rSVBK]
push af
ld a, BANK(wBGPals2)
ldh [rSVBK], a
ld hl, wBGPals2
ld bc, (8 palettes) + (2 palettes)
xor a
call ByteFill
pop af
ldh [rSVBK], a
ld a, TRUE
ldh [hCGBPalUpdate], a
call DelayFrame
ret
SwapTextboxPalettes::
homecall _SwapTextboxPalettes
ret
ScrollBGMapPalettes::
homecall _ScrollBGMapPalettes
ret
|
