INES Mapper 202: Difference between revisions
(document this mapper, based on FCEUX sources) |
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$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00 | $0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00 | ||
+-------------------------------+-------------------------------+ | +-------------------------------+-------------------------------+ | ||
CHR-ROM: | | CHR-ROM: |- - - - - - - - - - - - - - { 0 } - - - - - - - - - - - | | ||
+-------------------------------+-------------------------------+ | +-------------------------------+-------------------------------+ | ||
| Line 28: | Line 28: | ||
$8000 $A0000 $C000 $E0000 | $8000 $A0000 $C000 $E0000 | ||
+-------------------------------------- | +-------------------------------------- | ||
| | |- - - - - - - - - {0} - - - - - - - | | ||
+-------------------------------------- | +-------------------------------------- | ||
Revision as of 23:49, 1 September 2015
Mapper 202
Used for the 150-in-1 pirate cart
Registers: $8000-FFFF: A~[.... .... .... O..O]
[.... .... .... RRRM]
O = Prg Mode, if 3, will use 32 Prg mode, else 16
R = page registers, used for both chr 8k banks, and prg banks (in both 16k and 32k modes)
M = Mirroring, 0 = Vertical, 1 = Horizontal
CHR Setup:
$0000 $0400 $0800 $0C00 $1000 $1400 $1800 $1C00
+-------------------------------+-------------------------------+
CHR-ROM: |- - - - - - - - - - - - - - { 0 } - - - - - - - - - - - |
+-------------------------------+-------------------------------+
PRG Setup:
32k Mode:
$8000 $A0000 $C000 $E0000 +-------------------------------------- |- - - - - - - - - {0} - - - - - - - | +--------------------------------------
16k Mode:
In 16k mode both regions are mapped to the same prg bank
$8000 $A0000 $C000 $E0000 +-------------------------------------- | {0} | {0} | +--------------------------------------
