This commit is contained in:
Michael Guidero 2019-02-07 14:39:07 -08:00
parent 73b2b6f918
commit 64e5b97b3e

31 Normal file
View File

@ -0,0 +1,31 @@
# ROM eX
ROM eX is a **BETA** enhancement to the enhanced Apple //e firmware ROM.
## Features
- Upon Control+CA/Option+Reset, presents a menu allowing you to choose to enter the monitor or start the boot a specific slot.
- Menu displays the type of card found in the slot.
- Menu identifies Apple II workstation cards and correctly boots them by prompting to press open-apple to start the boot.
## Tradeoffs/Flavors
Unlike the Apple //c firmware, there is no free space in the //e firmware. Therefore sacrifices must be made. With that in mind, ROM eX comes in two flavors:
- Sacrificing the tape code ('no_tape').
- Sacrificing the diagnostic code ('no_diags').
## Building
You must have Ruby and Rake installed, the CC65 suite, and probably some other things. Review the Rakefile. Author's development host runs MacOS X with the command line developer tools installed.
Change into the directory for your desired flavor and type 'rake' for a single ROM suitable for emulation or the later //e's CF ROM socket. Type 'rake split" to also get ROMs suitable for the CD and EF ROM sockets on earlier //es.
## Installing
This ROM can be run in emulators that allow specifying a custom ROM image. It is tested on Virtual ][.
Note that as of 2/7/2019, it has *NOT* been tested on actual hardware, though there is no reason it should not work.
To install in real hardware, the appropriate EPROMs must be programmed and installed in the system. A 27SF512 may work in //es equipped with a CF ROM socket, and 'rake sf512' will generate such an image (with 4 copies of the ROM in it).