MIPS HEAVY INDUSTRIES

2600 Homebrew Author Impromptu Gathering

Posted by djmips, 03 December 2010 · 85 views

Wow, just through sheer good fortune I got to meet in person with cd_w. Since vdub_bobby is close by, the three of of us got together last night to talk shop and have a beer. :-)

cd_w on the left and vdub_bobby on the right. Chris was visiting Seattle and just happened to be doing work at my company. Through some small talk about homebrew he found out that...

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Hello Again

Posted by djmips, 29 January 2008 · 97 views

Hi, everyone. Yes I have returned. I guess I wasn't gone that long after all. I took a break, everything worked out, and now I feel refreshed.

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Turning off the lights at factory

Posted by djmips, 28 July 2007 · 92 views

Well, I'm just letting you know that I won't be around here anymore. It was great to hang out and talk shop on a semi regular basis but I'm retiring from active duty.

Take care everyone.

- David

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ATAN2 in 6502

Posted by djmips, 27 May 2007 · 63 views

Some code rolling off the heavy industries math line today.

I've implemented a straighforward version of a CORDIC ATAN2 routine.
I've taken a few shortcuts. The #'s are normalized by shifting left 4 (x16) and I've limited the iterations to 8.

The accuracy is around 1 binary radian. (Binary Radians or BRADS : 0 - 255)

The slowest part is...

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Mega Man 2600 post mortem

Posted by djmips, 04 May 2007 · 81 views

Mega Man 2600 post mortem

It was cool how Mega Man 2600 blew up on the Internets.

It was very fun and hearkens to a time when I thought game programmer was going to be something like rock star. I distinctly remember hero worshiping the Kitchen brothers. The benefactor of this game (iam8bit) had assured me of a modicum of notoriety and it was...

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Homebrewing on the GBA - Charmed Labs XPort

Posted by djmips, 13 February 2007 · 97 views

I was recently emailing D. Debro about PSX development and It reminded me that I have a lot of homebrew development hardware.

One of the systems I have is the Charmed Labs Xport. This is a very cool system and while not cheap ($200), it is affordable and you...

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EPROM Burner

Posted by djmips, 09 February 2007 · 26 views

For sometime, I've been wanting to burn a few EPROMs but not wanting to shell out for an eraser and burner. I've got a lot of different EPROM carts for various systems like the Vectrex, Gameboy, SEGA Genesis, NES, and 2600.

Just a couple of days ago, I was walking around at my work when I spotted an N64 gang cartridge programmer sitting in the...

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BLiP Football Source

Posted by djmips, 19 January 2007 · 36 views

Today, I'm posting up the source for BLiP Football.

About BLiP Football. Original name: LEDhead because of being based on LEDhead by Peter Hirschberg. Was released in a small quantity in a beta version at NWCGE 2K6 1.0

I had a lot of help. I was the lead programmer you could say. There is a big contribution from Peter Hirschberg who wrote the PC...

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Arcade Pong status

Posted by djmips, 15 August 2006 · 16 views

For the one or two of you out there that are following the Arcade Pong project. I'm here to report that I delayed releasing the finished version. It's done but I recently re-discovered the DanBoris' Tech Blog on the original Arcade Pong. I've...

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Debugging with Stella

Posted by djmips, 14 July 2006 · 22 views

EDIT: the following is actually proven to be an academic exercise since I have been prompted/discovered that if 'developer support' is included in your Stella you have 'developer' command line parameters that let you set the controller left and right properties and the format <NTSC|PAL> and more...

I find the Stella debugger useful...

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