Oh, and welcome to the boards!

Apparently different versions of the FlashBoy loader only work properly with certain FlashBoy batches. Maybe yours is an older FlashBoy, have you tried using an older version of the loader with it?

For more info, I suggest getting in touch with Richard Hutchinson, aka MineStorm, the designer:

http://www.vr32.de/modules/usercenter/index.php?section=profile&uid=545

If you do write your own loader, a command line version would be useful for running from within Visual C++, etc.

dasi

Okay, I’m in for $20.

KR155E wrote:
there’s different revisions of the flashboy, and there’s different loader versions which only work with one version of the flashboy.

With my batch 1 FlashBoy, the latest version of the loader (20081026) gives a write error at 100% when flashing 2 MB ROMs. I’m using the previous loader version which seems to work okay.

[dasi]

m7_ex

Mode 7 with horizon and variable pitch.

Refs:

http://www.coranac.com/tonc/text/mode7ex.htm

Controls:

D-pad: look around
A, B: move forward/back
L, R: strafe left/right
Select + A/B: move up/down

dasi

• This reply was modified 16 years, 11 months ago by dasi.
• This reply was modified 16 years, 11 months ago by dasi.
• This reply was modified 16 years, 11 months ago by dasi.
• This reply was modified 16 years, 11 months ago by dasi.
• This reply was modified 16 years, 11 months ago by dasi.
• This reply was modified 16 years, 9 months ago by dasi.
• This reply was modified 16 years, 9 months ago by dasi.
• This reply was modified 16 years, 9 months ago by dasi.
• This reply was modified 4 years, 9 months ago by dasi.

[dasi]

EE Times Japan Virtual Boy Tear Down 2009/06/15

http://eetimes.jp/article/23081

Looks interesting, can anybody translate?

• This reply was modified 17 years ago by dasi.

> -Nesters funky bowling wont work on my flashboy

Looks like you’ve got a bad dump. Try another dump from somewhere else.

The ISO 3 letter country code for Japan is JPN.

http://en.wikipedia.org/wiki/ISO_3166-1_alpha-3

[dasi]

Yeah, it’s been working fine, hopefully it’s okay.

• This reply was modified 17 years ago by dasi.

[dasi]

I’ve just noticed the 9V 500mA AC adaptor I’ve been using for the last 18 months is labeled AC – AC, so it’s outputting 9V AC, which is bad, right?

• This reply was modified 17 years ago by dasi.

[dasi]

Sorry, yeah, that’s basically it: calculate the background coordinates at the center of the screen; then calculate the source-coordinate offsets (zoom * rotation) and multiply by 192 to get the offset-correction; then subtract the offset-correction from your background coordinates to get the source coordinates for the horizontal line to be displayed.

The offset-correction must be calculated in the same fixed point format as the source-coordinate offsets, and shifted down before multiplying by 192, otherwise you won’t get rid of the jaggies.

That’s how things work for Mode 7 type C in the demo, anyway. In type B (and I’m guessing your code?), the offset-correction isn’t calculated separately, which is what causes the problems. Does that make sense?

• This reply was modified 16 years, 9 months ago by dasi.

> looks like you have an older unit, so make sure to use loader version 20071209.

Why is that?

Patch for version 0.8.3: grit-vb-src-0.8.3.patch

Cool, how many have you made so far, over 200?

Hi. Yeah, very nice. Mine was like that once!

Darn it, you got me. :p

I’m seeing something similar on my VB, several dark, indistinct, horizontal lines on the left display. They appear to be somewhere in front of the display, not on the display itself – if I move my head, the lines move relative to the display, but are in a fixed pattern relative to each other. Here’s a diagram of what I’m seeing:

-------------------------------------
|                                   |
|                                   |
|                                   |
|                                   |
|                                   |
|                ----               |
|          ----                ---- |
|    ----                           |
-------------------------------------

I’ve also taken a photo that shows two of the lines, which I’ve marked with asterisks. In real life the lines appear much darker than shown here.

Attachments:

1. 

   vb1-7.jpg
   

[dasi]

Update:

Tidied up code a bit.
Licence removed by author and dedicated to the public domain.

• This reply was modified 17 years, 4 months ago by dasi.
• This reply was modified 17 years, 4 months ago by dasi.

Are you drunk?

I have a Japanese tap with a standard 9V UK adaptor. I had no idea the US tap was different.