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Forum: Coders. Asm / Hardware 04 June 2020, 09:00
Replies: 19
Views: 1,648
Posted By bloodline
He would need to use the Arduino to sample the...

He would need to use the Arduino to sample the data stream (which is a very low quality signal, and will proabably require some careful ADC coding) and feed the MFM transitions to the FPGA at TTL...
Forum: project.Sprites 04 June 2020, 08:08
Replies: 28
Views: 13,642
Posted By bloodline
Now Cherno has created the main player spirite...

Now Cherno has created the main player spirite set, I’ll work on putting it in the tech demo it should feel quite similar to the original game!

@Nova, would you like a Linux build?
Forum: project.Sprites 21 January 2020, 10:09
Replies: 28
Views: 13,642
Posted By bloodline
I wrote a Tracker Module player for Godot and...

I wrote a Tracker Module player for Godot and have the original music in there too now.

The map isn't using the tile set yet, as I can't seem to get the tiles to match up quite right yet... so I'm...
Forum: project.Sprites 14 January 2020, 11:12
Replies: 28
Views: 13,642
Posted By bloodline
I've used the assets posted here to start a build...

I've used the assets posted here to start a build using the Godot engine, I want to put it up on a shared space so we make a fun little tech demo/scene game with them.
Forum: project.Sprites 07 January 2020, 13:26
Replies: 28
Views: 13,642
Posted By bloodline
How did the sprite ripping go?

How did the sprite ripping go?
Forum: Coders. Asm / Hardware 01 June 2019, 09:45
Replies: 309
Views: 39,315
Posted By bloodline
Unfortunately, real life events have overtaken...

Unfortunately, real life events have overtaken me. Work commitments, the impending arrival of my second child, and other things not going as planned so I’ve had to put this project on hold for a...
Forum: Coders. System 29 May 2019, 18:14
Replies: 3,502
Views: 496,501
Posted By bloodline
I sort of suspected/feared as much! I’ve never...

I sort of suspected/feared as much! I’ve never used the icon.library, so looking over the autodocs a while back these two functions stuck out like a sore thumb. RJ Michal does like to go on about...
Forum: Coders. System 22 May 2019, 18:20
Replies: 3,502
Views: 496,501
Posted By bloodline
Sorry if this is the wrong place to ask, but does...

Sorry if this is the wrong place to ask, but does anyone know why there are the functions addFreeList() and freeFreeList() in the icon.library?

Shouldn’t these functions be in exec?
Forum: Amiga scene 19 April 2019, 16:17
Replies: 82
Views: 14,400
Posted By bloodline
I feel for the guys trying to turn the pixel art...

I feel for the guys trying to turn the pixel art into line draw code! :sad
Forum: Amiga scene 19 April 2019, 11:19
Replies: 82
Views: 14,400
Posted By bloodline
I can confirm that the image is drawn using the...

I can confirm that the image is drawn using the blitter’s line mode, rather than saved as a bitmap... this doesn’t match up with what Sheryl is saying.
Forum: Coders. Asm / Hardware 16 April 2019, 12:23
Replies: 34
Views: 2,240
Posted By bloodline
Two rules exist with sound; 1. Loud sounds...

Two rules exist with sound; 1. Loud sounds totally dominate, don't bother with quiet parts, when there is a loud sound.



2. the attack of a sounds playing now is more important than the decay...
Forum: Coders. Asm / Hardware 16 April 2019, 11:50
Replies: 34
Views: 2,240
Posted By bloodline
I don’t think the Amiga would be able to get the...

I don’t think the Amiga would be able to get the sample rate high enough to make that work effectively.
Forum: Coders. Asm / Hardware 16 April 2019, 11:37
Replies: 34
Views: 2,240
Posted By bloodline
11KHz will give fine sound effects, I had...

11KHz will give fine sound effects, I had originally planned to support 4 sfx samples on the fourth channel, but testing showed that it was too quiet to be particularly good... I decided to do the...
Forum: Coders. Asm / Hardware 16 April 2019, 09:41
Replies: 34
Views: 2,240
Posted By bloodline
My first game/demo work was writing audio code...

My first game/demo work was writing audio code for the Amiga. I’ll have to have a look through my archives, but my playback routine would playback a protracker module on the first three audio...
Forum: Coders. Blitz Basic 07 April 2019, 13:05
Replies: 6
Views: 961
Posted By bloodline
At a guess, Amiga Mode uses graphics.library...

At a guess, Amiga Mode uses graphics.library waitTOF() to ensure multitasking friendliness :)
Forum: Coders. Blitz Basic 07 April 2019, 12:43
Replies: 6
Views: 961
Posted By bloodline
Hey there! Thanks for replying. This is a...

Hey there! Thanks for replying.

This is a pretty nice idea, but I needed to know what the command was doing as it was highlighting a bug in the Amiga Emulator I’m writing.

As you can see, I...
Forum: Coders. Asm / Hardware 05 April 2019, 18:27
Replies: 309
Views: 39,315
Posted By bloodline
Yes, that’s the plan, the 68000 Emulator has...

Yes, that’s the plan, the 68000 Emulator has unrestricted access to all RAM above the lowest 32meg, so drivers can be written in AmigaOS which just access the host hardware directly.

Obviously if...
Forum: Coders. Asm / Hardware 05 April 2019, 17:07
Replies: 309
Views: 39,315
Posted By bloodline
Ok, so let me describe what Omega currently is:...

Ok, so let me describe what Omega currently is: It’s basically a 68000 Emulator (using the free open source Musashi code, as used in other projects like mame), with just enough of the Amiga OCS...
Forum: Coders. Asm / Hardware 04 April 2019, 08:52
Replies: 309
Views: 39,315
Posted By bloodline
After some optimisation experiments by Dirk...

After some optimisation experiments by Dirk Hoffmann, it's now possible to run Omega at stupidly fast CPU speeds (adjust the CPU to DMA ratio in CPU.c) :D
Forum: Coders. Blitz Basic 28 March 2019, 22:01
Replies: 6
Views: 961
Posted By bloodline
it seems the offending code is: E ce8e0c:...

it seems the offending code is:


E ce8e0c: 0839 0000 00df f005 : btst #$0, $dff005.l
E ce8e14: 6700 fff6 : beq ce8e0c


Now to figure out how to handle it :confused
...
Forum: Coders. Blitz Basic 28 March 2019, 18:22
Replies: 251
Views: 36,675
Posted By bloodline
I have also been wondering if there is some kind...

I have also been wondering if there is some kind of sizeof() function... the manual states that the “quick” type is 2bytes, but that would be impossible. It has to be 4 bytes.
Forum: Coders. Blitz Basic 27 March 2019, 10:09
Replies: 6
Views: 961
Posted By bloodline
VWait

Odd question, but does anyone know how VWait works?

If I use it in AMIGA mode, then it works perfectly fine.
If I use it in BLITZ mode, it never returns and the machine remains in a wait state....
Forum: Coders. Asm / Hardware 21 March 2019, 15:13
Replies: 309
Views: 39,315
Posted By bloodline
This was the address placed on the bus by the CPU...

This was the address placed on the bus by the CPU for a byte write... it looks like (yet another) case of incomplete address decoding. I think you are correct, only ROM 3 does it... so annoying.
Forum: Coders. Asm / Hardware 21 March 2019, 12:09
Replies: 309
Views: 39,315
Posted By bloodline
Thanks for the link! Unfortunately, it doesn’t...

Thanks for the link! Unfortunately, it doesn’t really help me. I can see every operation which occurs within the virtual machine, the questions which I have is to try and understand how the software...
Forum: Coders. General 19 March 2019, 14:47
Replies: 61
Views: 10,815
Posted By bloodline
This is my thinking, you don’t need any of the...

This is my thinking, you don’t need any of the fancy stuff Denise/Lisa does with a chunky mode, we already have the 16bit beam synchronised fetch... it just need to feed the DAC (which is also...
Forum: Coders. Asm / Hardware 18 March 2019, 22:36
Replies: 309
Views: 39,315
Posted By bloodline
ROM3 is writing a to address 0xBFA001, is this...

ROM3 is writing a to address 0xBFA001, is this some weird incomplete address decoding, is it trying to write to CIA A?
Forum: Coders. Blitz Basic 18 March 2019, 12:33
Replies: 10
Views: 1,057
Posted By bloodline
Yes, it was mathtrans.library which was missing....

Yes, it was mathtrans.library which was missing. Adding that seems to have fixed the issue.

It is very odd that BlitzBasic doesn’t show an error when the library isn’t present :confused
Forum: Coders. Blitz Basic 18 March 2019, 09:48
Replies: 10
Views: 1,057
Posted By bloodline
You are correct, mathtrans.library isn’t...

You are correct, mathtrans.library isn’t present... I would have expected either a missing lib error or a crash.

Cheers for the heads up! I’ll add that to my boot disk and see how far I get :great
Forum: Coders. Blitz Basic 18 March 2019, 09:42
Replies: 10
Views: 1,057
Posted By bloodline
BlitzBasic Sin() and Cos() functions

I have been testing my Emulator project with various programs, and I was finding quite a bit of software written with BlitzBasic seemed to just load up and then stop. The Emulator doesn’t crash, the...
Forum: Coders. Asm / Hardware 17 March 2019, 20:44
Replies: 309
Views: 39,315
Posted By bloodline
Ok, fixed it. I had to add some logic to the...

Ok, fixed it. I had to add some logic to the floppy drive to remember the state of ciab->prb bit 0, if the previous write to the register has that bit set just ignore it this time.

Omega is now...
Forum: Coders. Asm / Hardware 17 March 2019, 18:12
Replies: 309
Views: 39,315
Posted By bloodline
I've been testing Omega with AmigaTestKit (...

I've been testing Omega with AmigaTestKit ( https://github.com/keirf/Amiga-Stuff ), and it's clear something is wrong with my Floppy Drive logic.

I think the issue with KS2 not booting is that it...
Forum: Coders. Asm / Hardware 17 March 2019, 01:17
Replies: 66
Views: 3,627
Posted By bloodline
You’re right since a byte per pixel chunky mode...

You’re right since a byte per pixel chunky mode on OCS would have had three spare bits, it could have included some really exotic pixel modes. My favourite idea is to have a “low colour” RGB mode: 2...
Forum: Coders. Asm / Hardware 16 March 2019, 00:28
Replies: 66
Views: 3,627
Posted By bloodline
In a single scanline you have enough time for 227...

In a single scanline you have enough time for 227 16bit memory accesses (read or write). So all the odd accesses are given to time critical operations, the even slots are then given to the copper,...
Forum: Coders. Asm / Hardware 15 March 2019, 21:15
Replies: 66
Views: 3,627
Posted By bloodline
Ahhh, that makes sense, cheers for the...

Ahhh, that makes sense, cheers for the clarification.



I didn't know this!
Forum: Coders. Nextgen 15 March 2019, 21:06
Replies: 2
Views: 3,593
Posted By bloodline
Another good link :great

Another good link :great
Forum: Coders. Asm / Hardware 15 March 2019, 19:18
Replies: 66
Views: 3,627
Posted By bloodline
Hmmm, I don’t really understand the ST, it seems...

Hmmm, I don’t really understand the ST, it seems like an 8bit machine with a 68000 :laughing
Forum: Coders. Asm / Hardware 15 March 2019, 19:01
Replies: 66
Views: 3,627
Posted By bloodline
ECS had the bandwidth... but not the palette...

ECS had the bandwidth... but not the palette capacity.



That was the Atari ST pixel format IIRC, it allowed two pixels per byte.
Forum: Coders. Asm / Hardware 15 March 2019, 15:59
Replies: 66
Views: 3,627
Posted By bloodline
I think the old CSG fab was very out of date by...

I think the old CSG fab was very out of date by the late 80’s. IIRC Lisa had to be manufactured by HP


I think Gorf wants to know if you feel there were some easy chipset wins, totally missed by...
Forum: support.WinUAE 15 March 2019, 09:59
Replies: 2
Views: 830
Posted By bloodline
Ahh, ok. This is interesting. Many thanks :great

Ahh, ok. This is interesting. Many thanks :great
Forum: support.WinUAE 15 March 2019, 09:36
Replies: 2
Views: 830
Posted By bloodline
"Allow Native Code"

I have often wondered about this Misc option in WinUAE. I can assume it allows the running of x86 code within the emulator, but I can't seem to find any documentation/eamples to show how one might...
Showing results 1 to 40 of 284

 
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