Search found 86 matches

by stef
Sat Jan 25, 2020 7:42 am
Forum: General Discussion
Topic: FOENIX FMX - (RevC4A) - General Technical Information
Replies: 2
Views: 229

JOYSTICK PORTS

Joystick Ports Definition:
by stef
Sat Jan 25, 2020 6:47 am
Forum: General Discussion
Topic: FOENIX FMX - (RevC4A) - General Technical Information
Replies: 2
Views: 229

MEMORY MAP (General)

FOENIX FMX - General Memory MAP $00:0000 - $00:00FF - RAM (Reserved by Kernel) $00:0100..$00:0107 - 16Bits Unsigned Multiplication (FIXED MATH CORE) $00:0108..$00:010F - 16Bits Signed Multiplication (FIXED MATH CORE) $00:0110..$00:0117 - 16Bits Unsigned Division (FIXED MATH CORE) $00:0118..$00:011F ...
by stef
Sat Jan 25, 2020 6:21 am
Forum: General Discussion
Topic: FOENIX FMX - (RevC4A) - General Technical Information
Replies: 2
Views: 229

FOENIX FMX - (RevC4A) - General Technical Information

Good Day Everyone, For the last couple of weeks, the release of the early-birds has begun. Up till now, most of the information was shared on Discord where all the early-birds were invited. Now, that we are moving forward with the release of around 40 Units. More and more information will become ava...
by stef
Sat Jan 18, 2020 8:43 pm
Forum: News
Topic: C256 Foenix - Specifications (Last Update: March 10th)
Replies: 22
Views: 2999

Re: C256 Foenix - Specifications (Last Update: March 10th)

On boot up, how is data copied from the Flash into RAM. Is is copied down via DMA? I'm very curious about the magic happening here. I have an Apple IIgs background. These days most folks have 4MB or more of main RAM in their GS, and can spend spend around $50-$100 for this type of upgrade. So my pe...
by stef
Thu Jan 16, 2020 4:50 am
Forum: News
Topic: C256 Foenix - Specifications (Last Update: March 10th)
Replies: 22
Views: 2999

Re: C256 Foenix - Specifications (Last Update: March 10th)

This is a very cool project! Apologies in advance if this has been answered. Is there additional technical documentation posted some place. I'm most interested in a complete memory-map. Where is RAM mapped, where is ROM mapped, etc. Thank you in advance, Jason Jason, you could start with that to gi...
by stef
Sat Nov 09, 2019 7:38 am
Forum: General Discussion
Topic: Foenix IDE
Replies: 96
Views: 5757

Re: Foenix IDE

gadget wrote:
Sat Nov 09, 2019 4:30 am
I especially love the circle speed! Very nice!
Me too, I thought they were very fast!

S
by stef
Wed Nov 06, 2019 5:02 pm
Forum: General Discussion
Topic: Foenix IDE
Replies: 96
Views: 5757

Re: Foenix IDE

Thanks for this detailed post. The kernel that ships with the IDE has 76 columns by 56 lines (608 x 448). The border X and Y sizes are set to 16. This was done to test new attributes in Vicky (border sizes), located at $AF:0008 and $AF:0009. I'm not sure why this would affect the bitmap mode that y...
by stef
Tue Oct 29, 2019 8:31 pm
Forum: General Discussion
Topic: General Comments
Replies: 68
Views: 7503

Re: General Comments

I see on the photos that the designer used an SMSC (company) super-IO chip on the motherboard for serial/parallel ports. The SIO functionality can be implemented on an FPGA also, I did it before. Then you would not rely on a soon to be obsolete custom chip. What it takes is a source file I can give...
by stef
Fri Oct 18, 2019 7:02 pm
Forum: General Discussion
Topic: Foenix IDE
Replies: 96
Views: 5757

Re: Foenix IDE

Hi, Question for the IDE experts: I have create and compiled a simple C program with WDC tools. It works fine in the WDC simulator but when I load it in the IDE I notice some strange difference in the assembly code. Here is what I have in the WDC simulator : 00:0000 3B tsc 00:0001 38 sec 00:0002 E9...