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::
VFD on
Run 1 elapsed 6.98
Run 2 elapsed 7.06
Run 3 elapsed 7.14
Run 4 elapsed 7.2
Run 5 elapsed 6.4 (after put 31 that clears the screen)
So it depends of how many chars the screen is showing. That is the busrq/busack. if a line has a1 char then the video circuit enables the cpu after that char, it does not wait for the line to end.
with put 31:run elapsed 6.38 every time no chars on screen
with vfd off the same results so the only the chars on the screen affects the result.
with list (so the listing is displayed) i get 7.3 secs::Nice work.
Newbrain uses busreq/busack to paint the screen so the real speed is a lot less than 4MHz.
That is the reason if you play chess with the fast setting on it disables the screen to go full speed.
So for some games like the crossing the speed should be reduced otherwise it is almost unplayable.
::Great implementation.
Tape files with binary follow ups should automatically change to the next file after each file loads. Like Pacman.bas, it needs to load the pac.screen.bin and the pac.bytes.bin. So it should probably go to a seperate folder and somehow put the files in order, or use a container like .tap.
There are also .bas files that are disk files (cp/m) like demo30.bas. this one loads(merge) other bas files depending on the menu you choose, so it needs the cp/m, either the small one or the full with the Expansion. In my fpga i use a new 8K rom on bank 4 that implements a new device 12,13,14,15 (like cp/m) that loads from the sdcard.
Newbrain uses all devices the same way as streams so you can replace any device with another.
If you need help with the cp/m let me know.
::Hi,
you can try the attached patterns (just overwrite the contents of the folder). They are the same as the mame wave.
But be aware you cannot convert a non TAPE file to a wav file. The file you are converting should be a tape file not a disk one.
If you want to convert a disk file you can do it by loading it on the newbrain and then poke 19,1 and save it as tape. That will produce a tape file which then you can convert it to a wave file to be written to a real tape and then be read by a real newbrain.
Anyway if that doesn’t work i ll have to build me a cable and do some tests.
Attachments:
::Ok i made a tool to do this. I have not tested it.
So here it is https://newbrainemu.eu/download/bin2wave/.
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