NEO mapper/Extension

From MSX Game Library

Revision as of 14:35, 4 March 2025 by Aoineko (talk | contribs)

< NEO mapper

NEO Mapper Extension WIP

Mode

  • 00: ROM mapper
    • Read: Access to ROM content
    • Write: Select bank's segment
  • 01:
  • 10:
    • Read:
    • Write:
  • 11:
Higher byte Lower byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Mode Segment MSB Segment LSB
  • The 2 higher bits are used to select mode
  • The 14 lower bits to select which segment is visible in each bank, for a maximum of 16384 segments.