v9990 Transfer Speed - Update

صفحة 1/2
| 2

بواسطة GhostwriterP

Paladin (683)

صورة GhostwriterP

24-09-2008, 21:02

Here is the new table, with an accuracy of ± 256 bytes, all values in kb (x 1024 => bytes).

----------------------------------------------------
       |                  COMMAND
 MODE  |--------------------------------------------
       |  LMMM  |  BMLL  |  BMXL  |  BMLX  |  LMMV
----------------------------------------------------
B 4bit | 44.125 | 44.250 | 44.500 | 44.125 | 62.625
 MCKIN | 26.875 | 26.750 | 27.000 | 26.875 | 39.375
----------------------------------------------------
B 8bit | 44.125 | 44.125 | 44.500 | 44.125 | 93.000
 MCKIN | 27.000 | 27.250 | 27.000 | 27.000 | 58.000
----------------------------------------------------
P1 sON |  6.125	|  6.125 |   -    |   -    | 12.875
   sOFF|  9.125 |  9.125 |   -    |   -    | 19.250
----------------------------------------------------

I share this for all of you to enjoy Smile

Login أوregister لوضع تعليقاتك

بواسطة PingPong

Prophet (4093)

صورة PingPong

24-09-2008, 21:16

@GhostWriterP: thx, but you missed a little thing: the table show the amount of bytes moved, but not the period. What are KB/sec? Wink

بواسطة Edwin

Paragon (1182)

صورة Edwin

24-09-2008, 21:41

Going by the numbers, I'm guessing bytes per int at 50 Hz. 44125*50 = 2.1MB. Which is approximately what a g9k should be capable of.

بواسطة GhostwriterP

Paladin (683)

صورة GhostwriterP

24-09-2008, 22:08

I meant to post this one:

----------------------------------------------------
       |                  COMMAND (kb / frame)
 MODE  |--------------------------------------------
 60Hz  |  LMMM  |  BMLL  |  BMXL  |  BMLX  |  LMMV
----------------------------------------------------
B 4bit | 36.250 | 36.250 | 36.500 | 36.250 | 51.750
 MCKIN | 22.500 | 22.750 | 22.500 | 22.500 | 33.000
----------------------------------------------------
B 8bit | 36.250 | 36.250 | 36.500 | 36.250 | 76.750
 MCKIN | 22.500 | 22.750 | 22.500 | 22.500 | 48.750
----------------------------------------------------
P1 sON |  6.125	|  6.125 |   -    |   -    | 12.875
   sOFF|  9.125 |  9.125 |   -    |   -    | 19.250
----------------------------------------------------

The other table contained 50Hz values for B modes... quite useless Wink

بواسطة Manuel

Ascended (19273)

صورة Manuel

25-09-2008, 12:39

Weird, between 4 and 8 bpp, only LMMV makes a diff. (In the first table, that's different, btw!)

بواسطة GhostwriterP

Paladin (683)

صورة GhostwriterP

25-09-2008, 18:21

You are right, verry strange. Anyway manuel, are you still interested in the test programs?

بواسطة AuroraMSX

Paragon (1902)

صورة AuroraMSX

26-09-2008, 11:59

You are right, verry strange. Anyway manuel, are you still interested in the test programs?
Although I'm not manuel (thank ghodd! Tongue), I'll say "Definitely YES!", the test programs and the results can be very helpful in perfecting the v9990 emulation!

بواسطة Manuel

Ascended (19273)

صورة Manuel

26-09-2008, 21:40

GhostWriterP: I'm always interested in such programs! (As AuroraMSX says!) Anything we can run on real MSX and on emulation, especially benchmark/measurement programs are extremely helpful!

بواسطة GhostwriterP

Paladin (683)

صورة GhostwriterP

27-09-2008, 13:28

----------------------------------------------------
       |                  COMMAND (kb / frame)
 MODE  |--------------------------------------------
 60Hz  |  LMMM  |  BMLL  |  BMXL  |  BMLX  |  LMMV
----------------------------------------------------
B 4bit | 36.250 | 36.250 | 36.500 | 36.250 | 51.750
 MCKIN | 22.500 | 22.750 | 22.500 | 22.500 | 33.000
----------------------------------------------------
B 8bit | 36.250 | 36.250 | 36.500 | 36.250 | 76.750
 MCKIN | 22.500 | 22.750 | 22.500 | 22.500 | 48.750
----------------------------------------------------
B 16bit| 37.000 | 36.750 | 37.000 | 37.000 | 77.500
 MCKIN | 22.500 | 22.500 | 22.500 | 22.500 | 48.500
----------------------------------------------------
P1 sON |  6.125	|  6.125 |   -    |   -    | 12.875
   sOFF|  9.125 |  9.125 |   -    |   -    | 19.250
----------------------------------------------------

بواسطة Leo

Paragon (1236)

صورة Leo

27-09-2008, 20:50

it should then be possible to write a v9918 emulator running on V9990 , like russian did on their
aleste 520ex :

aleste520.narod.ru/html/vdp_emulator.html
:)

بواسطة Manuel

Ascended (19273)

صورة Manuel

05-10-2008, 23:25

GhostWriterP: can you please send us the test programs, so we can use this stuff and verify if it works in openMSX?

صفحة 1/2
| 2