Sega Work In Progress
Introduction

Currently this is a more organized repository for all the Hitachi FD1094 information that's been up on the front page.

Updates

Added an archive (table.rar) of some test values decrypted at each address throughout the 16K range of $10000-$13FFF. The filename is the value stored in RAM and decrypted by the CPU. Updated summary.txt with more information.

Documents

summary.txtGeneral information
output.txtDisabled instructions list
ffff.txtList of input values that are decrypted as FFFF
direct0.txtDirect opcode list, 0xxx group
direct1.txtDirect opcode list, 4xxx group
direct2.txtDirect opcode list, 8xxx group
direct4.txtDirect opcode list, Cxxx group

Data

tetris-data2.zipDecryption tables for some addresses in the #$0097FFFF state.
table.rarDecryption tables for single values throughout a 16K block in the reset state.

Screenshots

Tetris (Title)Tetris (Attract sequence)
Tetris (Warning screen)Tetris (Gameplay demo)

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