Optimal timings

Console / mode	Dots per scanline / no. scanlines / @dotclk	OSSC base mode	Modified parameters	Notes	PC modeline
NES 256x240 @60.10Hz	341 / 262 / @5.37MHz(NTSC) [1][2]	256x240		To reduce jitter in couple topmost lines, try disabling ""Allow TVP HPLL2x" and/or using mask.	Modeline "ossc_nes_1280x720_60.08" 80.55 1280 1385 1510 1705 720 729 738 786 -hsync -vsync
SNES 256x239/224 @60.10Hz	341 / 262 / @5.37MHz(NTSC) @5.32MHz(PAL) [3]	256x240			Modeline "ossc_snes_1280x720_60.08" 80.55 1280 1385 1510 1705 720 729 738 786 -hsync -vsync
Mega Drive 320x224 @60Hz	427 / 262 / @?	320x240	H.samplerate=427
Mega Drive 256x224 @60Hz	341 / 262 / @?	256x240
N64 320x240 @60Hz	773.25 (?) / 262 / @12.18MHz(NTSC) [4]	320x240	H.samplerate=387, H.synclen=22, H.backporch=36	Every other visible dot (of 640) is interpolated
PSX 320x240 @60Hz	426.625 (?) / 263 / @6.71MHz(NTSC) @6.65MHz(PAL) [5] [6]	320x240	-
Saturn 320x240 @60Hz	427 / 262 / @6.71MHz [7]	320x240	H.samplerate=427
DC VGA @60Hz	858 / 525 / @27MHz [8]	480p	H active=640
GC GBI ULL @59.72Hz	866 / 261 / @13.5MHz ?	240p	H samplerate=866 ?
CPS2 384x224 @59.64Hz	512 / 262 / @8MHz	320x240	H.samplerate=512, H.active=384, H.backporch=66
Seibu SPI	? / 293 (?)	?