You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

18 lines
709 B

FPGA Z80 has no real ROM. It has a single 512K RAM chip.
The ROMless startup mode treats the entire 512KB as RAM. 384KB of RAM
must be preloaded by the FPGA Monitor CF Loader. There will be no ROM
disk available under RomWBW. There will be a RAM Disk and it's initial
contents will be seeded by the image loaded by the CF Loader.
Bank Contents Description
-------- -------- -----------
0x0 BIOS HBIOS Bank (operating)
0x1 IMG0 ROM Loader, Monitor, ROM OSes
0x2 IMG1 ROM Applications
0x3 IMG2 Reserved
0x4-0xB RAMD RAM Disk Banks
0xC BUF OS Buffers (CP/M3)
0xD AUX Aux Bank (CP/M 3, BPBIOS, etc.)
0xE USR User Bank (CP/M TPA, etc.)
0xF COM Common Bank, Upper 32KB