*********************************************************************** *** *** *** R o m W B W *** *** *** *** Z80/Z180 System Software *** *** *** *********************************************************************** This is the parent directory for all files to be included in the ROM Disk when a ROM is built. When constructing the ROM disk as part of a build, the build process first grabs all of the "standard" files for the size of ROM being built. So, if you are building a normal 512KB ROM, all of the files in ROM_512KB directory will be pulled in. You may freely add/delete/update the files in these directories to change the contents of the ROM Disk of your ROM firmware. CAUTION: The space on the ROM Disk is very limited and adding files is likely to cause the ROM Disk to run out of space. If this happens, you will see an error like the following when running the BuildROM script: cpmcp: can not write cpm.sys: device full The resulting ROM Disk is still OK to use, but will not contain the file(s) that did not fit. RomWBW also supports the concept of a "ROMless" system in which an external bootstrap pre-loads the RAM. The RAM_xxxKB directories contain the files to be used for such systems. Note the size of the RAM disk on a 512KB ROMless system is not the same as the RAM disk on a normal system. This is due to different bank layout and overhead. System ROM Disk Image RAM Disk Image ------ -------------- -------------- 128KB n/a n/a 256KB 128KB ROM Disk n/a 512KB 384KB ROM Disk 256KB RAM Disk 1024KB 896KB ROM Disk 768KB RAM Disk ??? 2048KB n/a 1792KB RAM Disk ???