FlashROM v5.1G
ZXNet echo conference «code.zx»
From Nikolaj Amosov → To All 25 February 2002
Greetings, All!
I suggest people who understand the scorpion profession to delve into
GMX firmware and make some fixes that will make it easier
the existence of users of this very GMX.
And I suggest GMX users donate to the hacker for this.
So, what I would like to see in the new version:
1. Deal with the FlashROM bootloader and remove the check
checksums so that any user can make changes to the ROM
(like flashing your ROM-DISK with your favorite programs).
2. Understand the structure of the ROM-DISK, how it is organized
program directory.
3. Fix a glitch: after formatting a floppy disk (real)
using the Disk Utility menu, very often the floppy disk becomes
unilateral, i.e. incorrect data is entered into the official
disk sector. In this case, the disk parameters in the Setup->Disk menu
Utility are changed to one-sided. This doesn't always happen, but
still...
4. Remove checking the number of the enabled screen through a variable
bass #5B5C. IMHO why such a check is needed if there
Various depackers and other comrades constantly leave traces.
As a result, the wrong screen number is constantly determined and
When working with a screw, it switches to the second screen.
The real screen is determined via port #7EFD bit 1.
5. Make a detection of the enabled extended screen (#7EFD
bit 3) when entering the shadow and turning it on, if necessary, when
exit.6. The most important thing is to reset the 8th page whenever you turn on
port #DFFD (extended memory) to zero, and at the output restored
pour out its meaning. This will allow you to use
additional memory, up to 2 MB, shared with a hard drive.
7. Also a very important change - hard connection of images
disk on the hard drive through the rst#08 functions, and not just through
monitor means.
I think many GMX owners (if not all) will be very
are happy about this version of the ROM and will gladly donate to the one who has it
will do.
For those who want to dig into the firmware, I can send the firmware itself to
as a disk image.
[REAL ZX]