Namco Pac-Man/Memory Map: Difference between revisions
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(addition of a memory map table for the Z80 address and I/O space) |
(Describe full mirroring a little better) |
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| Line 14: | Line 14: | ||
| $4FF0-$4FFF || $0010 || Sprite Attribute RAM | | $4FF0-$4FFF || $0010 || Sprite Attribute RAM | ||
|- | |- | ||
| $5000-$ | | $5000-$50FF || $0100 || I/O, Sprite Position and Namco WSG Registers | ||
|- | |- | ||
| $ | | $5100-$5FFF || $0F00 || Mirrors of $5000-$50FF (repeated 16 times) | ||
|- | |- | ||
| $6000-$7FFF || $2000 || Mirrors of $4000-$5FFF | | $6000-$7FFF || $2000 || Mirrors of $4000-$5FFF | ||
|- | |- | ||
| $8000-$ | | $8000-$FFFF || $8000 || Mirrors of $0000-$7FFF | ||
|- | |- | ||
! I/O Range || | ! I/O Range || | ||
|- | |- | ||
| $00 || $ | | $00 || $100 || Interrupt address register | ||
|} | |} | ||
<!--table border needs to be figured out--> | <!--table border needs to be figured out--> | ||
Revision as of 20:03, 12 May 2023
| Address Range | Size | Device | |
|---|---|---|---|
| $0000-$3FFF | $4000 | Program ROM space, fixed | |
| $4000-$43FF | $0400 | Video RAM (Tilemap RAM) | |
| $4400-$47FF | $0400 | Video RAM {Color RAM) | |
| $4800-$4BFF | $0400 | Unused space | |
| $4C00-$4FEF | $03F0 | Work RAM | |
| $4FF0-$4FFF | $0010 | Sprite Attribute RAM | |
| $5000-$50FF | $0100 | I/O, Sprite Position and Namco WSG Registers | |
| $5100-$5FFF | $0F00 | Mirrors of $5000-$50FF (repeated 16 times) | |
| $6000-$7FFF | $2000 | Mirrors of $4000-$5FFF | |
| $8000-$FFFF | $8000 | Mirrors of $0000-$7FFF | |
| I/O Range | |||
| $00 | $100 | Interrupt address register |
