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V9958 replacement
Score: 171.71 %,
Type: Forum topic , Comments: 33 comments
have CM2=0 for logical CM2=1 for high speed, so:
CM2 = CM3 == 0 || LogOp == 0 if i'm ... of logical operation in argument register.
Basically you can have CM2 = 0 only if CM3 is 1 AND logop=0 ... horizontally or vertically in a defined frame. I would also like to see the color 0 really transparent (to let ...
improving z80 speed
Score: 171.41 %,
Type: Forum topic , Comments: 8 comments
For modifying vhdl of one For modifying vhdl of one chip msx or terasic de0/de1/de2 or nano ...
for hw expert designers, a Frankestein GFX CARD for msx
Score: 163.8 %,
Type: Forum topic , Comments: 12 comments
How about a Video Cart Adapter based on C64 VIC-II on board, like is playsonic with sid?
Could the VIC-II driven in a Specific MSX Slot (The VIC itself can only address 16K, but there is a kind of MMU in C64 that allows to do paging of VIC-II RAM
...
msx printer port
Score: 154.55 %,
Type: Forum topic , Comments: 6 comments
Hi, all, time ago i remember a useful utility named LL3.EXE that ran on PC. It used the Printer Port to connect and exchange files between two PC.
This was possible because the PC Printer Port was bidirectional ( could be read or write )
I ...
V9938 to v9958 adapter?
Score: 154.38 %,
Type: Forum topic , Comments: 4 comments
I wondering if it is possible to make a kind of small adapter board with a v9958 on It and some kind of small wires ( like that ones that connect vdp wait signal) that can be used by plugging in a V9938 socket after cutting the original chip and ...
Sony Hb-10p
Score: 154.27 %,
Type: Forum topic , Comments: 5 comments
Hi, all, today i've found a Sony HB-10P machine in a basement.
The machine appear to have the VDP broken.
my idea was to buy a F18A to make it working again and get rid of original VRAM chips.
However, after a quick look, i've found a ...
the wait function (reloaded)
Score: 148.93 %,
Type: Forum topic , Comments: 7 comments
Hi, all.
in mrc some strange things were told about the v9958 wait function:
-(A) Enabling this causes garbage on VRAM access ( the opposite of what is supposed to the expected purpose )
-(B) It does not work at all on R800 so the msx-engine ...
Ocm vdp core implementation
Score: 145.95 %,
Type: Forum topic , Comments: 9 comments
Hi all.
I just wondering how ocm vdp implementation is *actually* close to vdp.
For example when a cmd is in prpgress and one does write to 98 port, what happens?
Does the ocm screw up or it does handle this by slowing down like the real hw?
How ...
Why FDD does not allow load while cpu process interrupts?
Score: 143.81 %,
Type: Forum topic , Comments: 18 comments
https://www.youtube.com/watch?v=RbRB8p2Y0vY
Being more low level, like Being more low level, like the tape, is actually better ...
NMS 8245 vdp upgrade
Score: 142.03 %,
Type: Forum topic , Comments: 51 comments
a diode in such a way that the diode is in conduction state (polarized) when pin 26 is going to 0V .
I ... a chance of 0% is better than a chance of 1%.
Quote:
Then again I’d like to
Quote:
Then ... benefit, so then maybe a chance of 0% is better than a chance of 1%.
From our tests, the /WAIT signal ...
