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Crystal clean PCM 8bit samples on the poor PSG

by ARTRAG on 19-02-2007, 16:37
Score: 129.32 %, Type: Forum topic , Comments: 133 comments
SNR = 10*log10(en/er) j=1; A = 0; B = 0; C = 0; la = 1; lb = 1; lc = 1; ja=1; jb=2; ... channel A volume register ; 7+1 out (#A0),a ; 11+1 ... assert 0 endif endif ENDM ; total 15 or 5 ...

z80 timing accuracy and M1 cycle

by ARTRAG on 28-12-2005, 19:16
Score: 108.92 %, Type: Forum topic , Comments: 19 comments
odd in openMSX even if on the paper all the frequencies where accurate with errors belove 0 ... reg,value ld a,reg ; select AY channel A volume register ; 7 + 1 out (#A0 ... ld ix,dat ld iyl,0 mainloop ldi a,(ix) : ld (bchan),a ldi ...

How to connect a GT turboR to a monitor for PC?

by ARTRAG on 09-12-2005, 22:03
Score: 108.81 %, Type: Forum topic , Comments: 1 comment
Is there some trick to convert one of the two video outs of the turbo R to the input of a PC monitor? Only with a scandoubler, too much money for too little Only with a scandoubler, too much money for too little (Hardware) ...

Apology tracker

by ARTRAG on 09-12-2005, 11:58
Score: 108.8 %, Type: Forum topic , Comments: 0 comments
5 B 3 6 F 4 Duration (sec) 0,5 You can use from octave 2 to octave 7, but the player should ...

turbo-r GT and broked disk driver

by ARTRAG on 30-01-2006, 03:06
Score: 108.94 %, Type: Forum topic , Comments: 34 comments
the only difference is that it still has jumpers to select the drive (DS0 ...

division by 24

by ARTRAG on 03-12-2005, 10:24
Score: 108.76 %, Type: Forum topic , Comments: 13 comments
byte of hl: [code] Multiply with 11 and then use the upper byte of hl: ld l,a ld h,0 ld ... suggestions. Your metod is exact in 0-255 !!! I get the quotient!!!! V Your metod is exact in 0 ... and the reminder My idea is ld l,a ld h,0 ld d,h ld e,a add hl,hl add hl,hl add hl,de add ...

FH poll and multiple interrupts per frame

by ARTRAG on 30-11-2005, 13:50
Score: 108.86 %, Type: Forum topic , Comments: 7 comments
256 (the last of the lower border I guess) and line 0 (the first on the upper border in the next ...

C cross compiler for z80

by ARTRAG on 12-09-2011, 01:55
Score: 111.64 %, Type: Forum topic , Comments: 10 comments
to nowhere [url=http://uzix.sourceforge.net/uzix2.0/index.php?page=down retry . SCroll down ... compliant; they lack NaN, +inf, -Inf and -0.0. The representation in memory is also different. Quote: ...

VDP tricks in scr4 using move/logical commands

by ARTRAG on 08-11-2005, 14:38
Score: 123.53 %, Type: Forum topic , Comments: 11 comments
and and here https://www.msx.org/news/software/en/vscreen-optimization-test ARTRAG wrote: Each copy ...

VDP commands and screen 4

by ARTRAG on 06-11-2005, 18:29
Score: 108.66 %, Type: Forum topic , Comments: 21 comments
is command is : (0,48)-(191,53) to (64,48+128) the second is : (192,48)-(255,52) to (0 ... (0,48)-(252,53) to (2,0+128) The z80 need to fill the first column on the left in scr4 (what corresponds ... org $C000 ; VDP ports ; vdpport0 equ 098h ; VRAM read/write vdpport1 equ 099h ...
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