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TMS VDP timing testing

by Eugeny_Brychkov on 07-09-2018, 22:17
Score: 155.25 %, Type: Forum topic , Comments: 34 comments
would be enough, not accounting for additional 0.15 T-cycles. But with VRAM write I get ... TMS9918 machine OUTI + RES 0,A -> 28 T-cycles -> good image in both openMSX and on real TMS9918 ... T-cycles. Thus the routine should look like 256 sets of OUTI + RES 0,A, with JP NZ at its end (counting ...

MSX mouse implementation in BASIC

by Eugeny_Brychkov on 24-08-2018, 13:32
Score: 146.47 %, Type: Forum topic , Comments: 4 comments
for so long, specially given the noisy nature of the analog part of the circuit. 160 TIME=0 170 A=PAD(12):IF 160 TIME=0 170 A=PAD(12):IF PAD(13)<>1 OR PAD(14)<>1 THEN MD=1:GOTO190 180 IF TIME<60 THEN 170 ELSE MD=0 190 ... Now part of my Heroes III for MSX demo. If ...

OUTI takes 1 extra cycle on Turbo machine

by Eugeny_Brychkov on 26-07-2018, 19:37
Score: 146.22 %, Type: Forum topic , Comments: 38 comments
thread at MRC forum. Quote: Turbo R and some MSX2+, when in z80 mode, slow down IO access ... PHC-70FD has 2 waits on VDP access (T9769A/B engine). The Sony HB-F1XV has 0 waits on VDP access (S1985 ... hiccups. To be clear, most MSX2+ machines also have these wait cycles, even two of them: 0 ...

Variable value by its name representation as string

by Eugeny_Brychkov on 06-06-2018, 16:31
Score: 149.03 %, Type: Forum topic , Comments: 10 comments
for i=0 to 2 30 read a$ 40 x=... ??? 50 print x 60 next i I define list of variable names using DATA, ... https://www.msx.org/forum/msx-talk/development/invoking-the-... It's easier to just use one multidimensional array and change the data to indexes. ... be: 1 dim d(2,10) 5 d(0,1)=2:d(1,1)=10:d(2,1)=100 10 data 0,1,2 15 restore 10 20 for i=0 to 2 30 ...

Tool to create and try FM instruments

by Eugeny_Brychkov on 01-06-2018, 08:30
Score: 145.59 %, Type: Forum topic , Comments: 34 comments
but if I remember correctly: I've turn SL0 & SL1 to 45db & turn DR0 & DR1 all the way up at inf msec, Turn MUL0 to 1/2 then turn MUL1 to 2, Turn FB to 4n & turn TL to 5db, & turn ... https://youtu.be/ZesUi0Jf5PU Simply remember that for OPL/L you can only choose sine waveform. And half-sine ...

Playing MIDI files on MSX

by Eugeny_Brychkov on 29-05-2018, 08:51
Score: 145.43 %, Type: Forum topic , Comments: 12 comments
https://www.msx.org/forum/msx-talk/general-discussion/msx-mi... What about Meridian? I can't What about Meridian? I can't remember exactly. ... MegaBytes in size, not 512k, thus 8 4 times more, thus ~0.7 seconds per instrument Eugeny_Brychkov ...

FizzBuzz using MSX / Z80 assembler

by Eugeny_Brychkov on 23-05-2018, 19:25
Score: 145.33 %, Type: Forum topic , Comments: 1 comment
counter, E=mod5 counter ld b,0100d ; 2 / 7 (8) B=number of cycles cycle: ld c,0h ; 2 / 7 (8) fizz ... increment, 0 no more ld d,03d ; 2 / 7 (8) reset mod3 counter call putstr ; 3 / 17 (18) print "Fizz" with trailing space db "Fizz ",0 ; 6 skip3: dec e ; 1 / 4 (5) mod5 counter ...

Permalink for comment

by Eugeny_Brychkov on 07-05-2018, 22:36
Score: 145.11 %, Type: Forum topic , Comments: 2 comments
Can not find an answer to it, and way to link to the comment. MRC troubleshooting FAQ to MRC troubleshooting FAQ to the rescue! Thank you so much Question - Thank you so much Question - why not put permalink tag into the ...

Input char 255 from the keyboard

by Eugeny_Brychkov on 13-04-2018, 02:36
Score: 144.74 %, Type: Forum topic , Comments: 4 comments
under normal machine operation for keyboard buffer containing byte 0xff. I don't know ... one of these two solutions: 1/ Using system variables + a escape code POKE&HFCA9h,0 ; No cursor (when PRINT) POKE&HFCA9h,1: POKE&HFCAAh,0 ; Full size cursor POKE&HFCA9h,1: ...

GR8cloud virtual volume image partitioning

by Eugeny_Brychkov on 05-04-2018, 19:18
Score: 145.27 %, Type: Forum topic , Comments: 28 comments
of GR8NETs or other Nextor-based devices installed in the system). MAPDRV.COM H: 2 2 0 Ah, I ... device with higher version number (it can be the case), thus arguments 2 2 0 will not be correct because ... First should be default Nextor kernel, thus second GR8NET doing 2 2 0 will try to mount second partition ...
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