OperaHW chipset

Address Space

0x00000000 - 0x001FFFFF -- DRAM (2MB), accessible by CPU and DMA 0x00200000 - 0x002FFFFF -- VRAM (1MB), accessible by CPU, CEL and VDLP 0x03000000 - 0x030FFFFF -- ROM (1MB), contains bootloader, copy of OperaOS, and few usefull programms, such as CD player 0x03140000 - 0x0315FFFF -- NVRAM (32KB), sparced by aligning every byte to 32 bits boundary 0x03200000 - 0x032FFFFF -- SPORT - this is special feauture of VRAM, allowing to COPY or FILL VRAM pages (512 bytes) without CPU usage. Can be used with byte mask, allowing to create unique effects. 0x03300000 - 0x033FFFFF -- MADAM 0x03400000 - 0x034FFFFF -- CLIO

MADAM registers

0x03300000