Mosaic Size - Nintendo 1504166 - Game Boy Advance SP Edition Console Programming Manual

AGB Programming Manual

6.1.2 Mosaic Size

Mosaic size is set in the MOSAIC register.
Turning mosaic on/off for each BG is accomplished by the mosaic flag of
the BG control register.
For information on the mosaic flag, see the previous section, BG Control.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Address Register
04Ch MOSAIC
The mosaic value specifies how many dots of a normal display should
comprise each large dot displayed.
Counting from the upper left-most dot on the screen, the number of dots
equal to the mosaic size are used in the mosaic display. The other dots
are overwritten by the mosaic. Please refer to the figure below.
If the mosaic size value is 0, a normal display is seen even if mosaic is
turned on.
Mosaic Schematic
Normal Display
00 01 02 03 04 05 06 07 08 09
10 11 12 13 14 15 16 17 18
20 21 22 23 24 25 26 27 28
30 31 32 33 34 35 36 37 38
40 41 42 43 44 45 46 47 48 49
50 51 52 53 54 55 56 57
60 61 62 63 64 65 66 67
70 71 72 73 74 75 76 77 78 79
©1999 - 2001 Nintendo of America Inc.
OBJ Mosaic
H size
OBJ Mosaic
V size
00 00 02 04
19 00 00
29 20 22 24
39
40 42 44
58 59
68 69 60 62 64
BG Mosaic
H size
BG Mosaic
V size
Mosaic H size: 1
V size: 1
06 08 00 00
00 00
26 28 00 00
00 00
46 48 00 00
00 00
66 68 60
39
Rendering Functions
AttributesInitial Value
W 0000h
Mosaic H size: 3
V size: 5
00 00 04 08
00 00
00 00
00 00
00 00
00 00
64 68
D.C.N. AGB-06-0001-002B4