Great Football (グレートフットボール) - Development

ROM Mapping

The Great Football ROM is 128KB in size and uses mapping in slot 2. That is, the first 32KB of the ROM is always mapped into Z80 address space at $0000 - $7fff ^[1]. The remainder of the ROM is composed of 6 banks, each 16KB in size. These banks are mapped, one at a time, into Z80 address space at $8000 - $bfff.

The game's code is contained entirely within the first 32KB of the ROM and the last 16KB bank.

ROM Map

This table summarises the contents of the Great Football ROM (Size: 128KB; CRC32: 2055825f):

Address Range	Contents
`$00000` - `$0bfff`	Unknown
`$0c000` - `$0d55f`	4bpp Tiles: U.S.A, Eagle and Rose
`$0d560` - `$0d627`	Name Table Entries: U.S.A
`$0d628` - `$0d6ef`	Name Table Entries: Eagle
`$0d6f0` - `$0d7b7`	Name Table Entries: Rose
`$0d7b8` - `$1ffff`	Unknown

^ All address ranges on this page are inclusive.

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