Hello Gavin,
My suggestion for a simple and effective(?) start (of the project) would
be:
first, to write a simple monitor.The monitor should have the following features:
- to init the system (dma, irq, serial ports etc.)
-a simple "command line" with the commands:What?!! Are we going back to the 70's? No WAY is there going to be any command line in Eric, save what you can emulate in a window.
I think we misunderstud here. I don't want to see any command line in a GUI (for a OS like Eric will be) either [my only interests are in a graphics BIOS].
This monitor should be only a little tool in the (early) development phase. And bochs doesn't emuluate enough PC hardware :-( (PCI, SDRAM, etc.). I know that it's out, but how do you want to test the BIOS in REAL hardware? At the time I was working on my little BIOS, my work-cycle was: [I hadn't an ICE] programming->burning into EPROM->pressing ROMs into the sockets-> On an error a had to fiddle the EPROMs out and start the whole thing again. I know there are some ways out of this dilemma, but I thought the monitor would be an elegant way to overcome early dev problems. And: monitors are implemented on most embedded systems.
Bye
Bernhard
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