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Best way to init SP (ROM)?
Score: 120.18 %,
Type: Forum topic , Comments: 25 comments
but it is not used by the MSX standard, same for undocumented opcodes. Other examples: V9938 can have 192kB, handle ...
S2357 clock out
Score: 136.29 %,
Type: Forum topic , Comments: 6 comments
pin 30 of S3527 via R353 100 ohms is making by pin 8 CPUCLK of V9938 IC317
clock out : pin 29 ...
Timing of BIOS routines, such as BIOS_WRTVRM
Score: 121.68 %,
Type: Forum topic , Comments: 28 comments
unrolling.
p.s. So far I’ve been assuming you’re developing for the MSX1 TMS9918 VDP. On the MSX2 V9938 ...
If you want your program to be compatible with V9938-based MSX machines (SVI-738, MSX2, ...), you ...
SCC quality output problem in MG2 (and probably other software)
Score: 118.28 %,
Type: Forum topic , Comments: 19 comments
(checked: openMSX V9938 runs at 60 Hz);
the size of corruption is a kind of one step period ...
My first MSX! Loving it, but I have questions about the video
Score: 117.67 %,
Type: Forum topic , Comments: 40 comments
judge the RGB quality of this machine, it’s not as good as the output of machines with Yamaha V9938 ...
VDP commands in SC4
Score: 482.35 %,
Type: Forum topic , Comments: 6 comments
Hi,
Are the VDP commands totally disabled in SC4 ?
Or is it just some of them ?
On the V9938 VDP commands do On the V9938 VDP commands do not work in modes below screen 5. Actually, I seem to recall reading they do work during blanking, but don’t quote me on that. On the V9958 ...
MSX Z80 clock frequency
Score: 125.69 %,
Type: Forum topic , Comments: 12 comments
the NMS 8250 engineers (Sanyo) figured using the normal clock values for the V9938 was within tolerances ...
Undestanding H.KEYI and H.TIMI
Score: 143.06 %,
Type: Forum topic , Comments: 6 comments
hook to handle a line interrupt on V9938 ?
If the H.TIMI is only called on VBLANK, I'm guessing ... by another interrupt generated by the VDP (on V9938) ?
I'm trying to make a screensplit work ... a macro)
nop
in a,(v9938.reg)
rra
call c,split.hblank
Correct ?
And change back so s#0 And ...
Programmable IO waitstates experiments
Score: 132.96 %,
Type: Forum topic , Comments: 7 comments
in question, What's the VDP in question, anyway? TMS912x, V9938 or V9958?
sd_snatcher wrote:
What's the
sd_snatcher wrote:
What's the VDP in question, anyway? TMS912x, V9938 ...
Screensplit: Line not detected. I'm puzzled.
Score: 128.03 %,
Type: Forum topic , Comments: 11 comments
it for the I've verified it for the vertical interrupt in the V9938 ( details ). In the V9938 the window where ...
