_cpct_mode_rom_status:: .db #0x9D
8-bit space for storing the latest selection of MODE, INT.GENERATOR and ROM status. This lets us know if Lower / Upper ROM are enabled or disabled, if interrupts are enabled or not, and which Video Mode is actually set.
[ GGGIRRnn ]
|GGG||Command for video mode and ROM selection (100)|
|I||Interrupt Generation Enabled (1)|
|RR||Reading from Lower and Upper ROM Disabled (11) (a 0 value means ROM enabled)|
|nn||Video Mode 1 (01)|
Default value: 0x9C = (10011100)