-
Notifications
You must be signed in to change notification settings - Fork 0
Undocumented CGB Registers
Optix edited this page Jan 30, 2021
·
1 revision
Source File: /src/tests/undoc_regs.asm
Compatible with: CGB, AGB/AGS
This test verifies the initial values and the behavior of "undocumented" registers $FF72-$FF75.
-
Invalid initial $FF7X- Reading from the register $FF7X (where X can be any value between 2 and 5) did not return the correct initial value -
Read-only $FF7X- Writing to the register $FF7X (where X can be any value between 2 and 5) has no effect -
Incorrect writeable bits on $FF75- Any of the bits 7, 3, 2, 1 or 0 are affected by writing to the register $FF75