How to cheat S.S.Monitor.
ZXNet echo conference «code.zx»
From 500:812/19.00 → To All coders 28 March 1998
Hi all! It's me again ;)))
So, I want to share subj.
How do you think a shadow person determines
What page does it launch from?
Elementary: into the page that is installed
updated when the shadow site was launched, at
#C001 (49153) 2 bytes are written:
85 (#55) and 170 (#AA). Otherwise, number
#AA55. Later the shadow starts to spin
pages, starting from zero, until
address #C001 will not detect the above-mentioned
those bytes. Hence the conclusion: shadow business is possible
deceive - write to the page with the number
rum below working number #AA55 in #C001.
And the shadow guy will show you the wrong page!
In addition, it will return to that page
which he defined (incorrectly). As a way
protection is unlikely to be used,
but if you ever have a glitch
RST 8, see if you have #AA55
at #C001. Although the likelihood of this
small, but you never know...
In general, digging into the ROM of the shadow worker gave information
interesting results... So, everyone knows
We have subroutines #81 (BIOS), #89 (CMOS),
#87 and #88 (Turbo), and #85 (shadow cut)
ka). But it turns out that there is also a bunch
undescribed RST 8! Yes, people are absolutely
I accidentally found out that #8B runs files,
discarded by alternative Magic...
Also, #8D does something with disk
house (not just spins it!), but
#8C generally throws it into the buffer (specified
in Hl or DE) BASIC!!! ;)
People, if you know anything about special
Benefits of Shadow Shadow Programmingscorpion, please share with us! ;)
Best regards, Vega from Style Group.
-+- Basic 48.