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Forum: Coders. Asm / Hardware Yesterday, 20:38
Replies: 5
Views: 253
Posted By paraj
Very nice demo and writeup Jobbo!

Very nice demo and writeup Jobbo!
Forum: Games images which need to be WHDified 20 April 2024, 23:33
Replies: 18
Views: 7,924
Posted By paraj
Yeah, so whdload version of EON I don't think is...

Yeah, so whdload version of EON I don't think is fully in sync with disk based version running on A500. The demo uses a pretty sophisticated system (read more on http://tbl.nu/) where it loads and...
Forum: Coders. General 09 April 2024, 19:58
Replies: 987
Views: 138,620
Posted By paraj
Has anybody looked at some hard numbers yet? Even...

Has anybody looked at some hard numbers yet? Even just basics like how many different "characters"/sprites are used in a level? How many animation frames for each of those? What are the sizes of the...
Forum: Coders. Asm / Hardware 09 April 2024, 19:10
Replies: 91
Views: 5,649
Posted By paraj
On 060? Sounds interesting, could you post the...

On 060? Sounds interesting, could you post the snippets?
Forum: Coders. Asm / Hardware 09 April 2024, 18:58
Replies: 9
Views: 809
Posted By paraj
Sorry, I had missed that it was mid-scaline,...

Sorry, I had missed that it was mid-scaline, that's indeed more tricky (and maybe not possible).
Forum: Coders. Asm / Hardware 09 April 2024, 18:53
Replies: 2
Views: 264
Posted By paraj
It's just saying "If you want to install a copper...

It's just saying "If you want to install a copper interrupt routine instead, change INTB_VERTB to INTB_COPER here". So yes, it is installing a vblank handler.
Forum: Coders. Asm / Hardware 07 April 2024, 20:35
Replies: 9
Views: 809
Posted By paraj
Description sounds a bit suspicious, but maybe...

Description sounds a bit suspicious, but maybe I'm misunderstanding it. Sounds like a timing issue.
If you post copper and CPU code that's making these changes we can say for certain. If CPU isn't...
Forum: Coders. Releases 02 April 2024, 17:53
Replies: 4,420
Views: 455,268
Posted By paraj
Seems like escape (which quitting fakes) actually...

Seems like escape (which quitting fakes) actually enters the currently selected menu. After SHOULDQUIT is true it keeps "faking" escape presses, which might not have been a good idea.


This seems...
Forum: Coders. Releases 01 April 2024, 21:49
Replies: 4,420
Views: 455,268
Posted By paraj
I've suppressed memories of what I did to menu...

I've suppressed memories of what I did to menu code, but looking at the change...
Forum: Amiga scene 01 April 2024, 19:52
Replies: 66
Views: 5,450
Posted By paraj
Effects run 1-frame as you might imagine, except...

Effects run 1-frame as you might imagine, except tunnel (greetings) part.


Also shoutout to Jobbo for sending EAB greats in nice demo :)
Forum: Coders. Releases 31 March 2024, 22:28
Replies: 4,420
Views: 455,268
Posted By paraj
Been a while since I looked at the code, but IIRC...

Been a while since I looked at the code, but IIRC the dependency on custom chips is purely the "fire" effect on the menu. Should be easy enough to remove.
Forum: Coders. Asm / Hardware 31 March 2024, 21:42
Replies: 11
Views: 1,464
Posted By paraj
Maybe that's what you mean, but you want to fill...

Maybe that's what you mean, but you want to fill LSB's from MSB's, not other way round right, i.e 0b11110 -> 0b111101 not 0b111100?


Nice, also think this is the only mobile game I ever...
Forum: Coders. General 26 March 2024, 20:34
Replies: 239
Views: 28,697
Posted By paraj
I won't claim to be a C2P expert, but feel free...

I won't claim to be a C2P expert, but feel free to ask questions here or in DM (or via e-mail, get it from there).
But basically you're always doing it on 32 aligned pixels at once (so you end up...
Forum: Coders. General 26 March 2024, 19:10
Replies: 239
Views: 28,697
Posted By paraj
Yeah, there doesn't seem be much point in...

Yeah, there doesn't seem be much point in optimizing C2P now (since you're not overlapping it with anything else). It can (potentially) be a cherry on the top at the end.

Sprite scaling seems to...
Forum: Coders. Asm / Hardware 24 March 2024, 19:31
Replies: 14
Views: 929
Posted By paraj
Yes, but you have to usual manual mode for the...

Yes, but you have to usual manual mode for the repeated sprites. On Codetappers site there are a number of examples that might inspire you: https://codetapper.com/amiga/sprite-tricks/

But since...
Forum: Coders. Asm / Hardware 24 March 2024, 18:15
Replies: 13
Views: 914
Posted By paraj
Yes, if start just with a couple of bits set and...

Yes, if start just with a couple of bits set and do what DanScott said you will get these patterns. Very nice :)


bltcon0=BC0F_SRCA | BC0F_SRCB | BC0F_DEST | 0x3c, bltcon1 = BC1F_BLITREVERSE |...
Forum: Coders. General 23 March 2024, 20:30
Replies: 239
Views: 28,697
Posted By paraj
outrun.zip in the zone

outrun.zip in the zone
Forum: Coders. Asm / Hardware 22 March 2024, 18:55
Replies: 13
Views: 914
Posted By paraj
There is at least one demo (from TEK IIRC) that I...

There is at least one demo (from TEK IIRC) that I think just lets one bitplane pointer run wild to achieve noisy effect for free. Doesn't fit your requirements but food for thought.
Forum: Coders. General 22 March 2024, 18:35
Replies: 239
Views: 28,697
Posted By paraj
Chipram/chipset accesses are essentially the only...

Chipram/chipset accesses are essentially the only bottlenecks there. Pistorm32 can do chipmem writes at full 7MB/s, my B1260 only gets ~5.5. Reads are slower on both, but you shouldn't really be...
Forum: Coders. General 22 March 2024, 17:58
Replies: 239
Views: 28,697
Posted By paraj
More realistic, B1260/50Mhz: ...

More realistic, B1260/50Mhz:


https://i.imgur.com/HG4CC7R.mp4

Logic 1F
Road bg 5
Road fg 29
tiles 3A
sprites 2EC
Forum: Coders. General 22 March 2024, 17:44
Replies: 239
Views: 28,697
Posted By paraj
A1200 pistorm32 (rpi3): LOGIC 5 Road bg 5 ...

A1200 pistorm32 (rpi3):
LOGIC 5
Road bg 5
Road fg 2
tiles 2
sprites 145
c2p C5

(some of them are flickering a bit up and down 1, rounded up)
Forum: Coders. Asm / Hardware 22 March 2024, 17:37
Replies: 12
Views: 1,559
Posted By paraj
Have you enabled the appropriate DMA channels and...

Have you enabled the appropriate DMA channels and set sprite colors? If you show the code or binary we can tell you exactly what's missing.
Forum: Coders. Asm / Hardware 21 March 2024, 20:10
Replies: 10
Views: 594
Posted By paraj
If you run out of fast mem your normal buffers...

If you run out of fast mem your normal buffers will still be demoted to chipmem, but no big deal.


Yes, exactly, like having "data_f" sections. I.e. sections where you require fast ram. IMO there...
Forum: Coders. Asm / Hardware 20 March 2024, 20:05
Replies: 10
Views: 594
Posted By paraj
Yes, it is documented...

Yes, it is documented (http://amigadev.elowar.com/read/ADCD_2.1/Libraries_Manual_guide/node02A6.html). Static allocation will work just fine, and in practice you don't have to worry about fast...
Forum: Retrogaming General Discussion 19 March 2024, 19:50
Replies: 79
Views: 5,519
Posted By paraj
Yeah, this is just delivering the same game...

Yeah, this is just delivering the same game hopefully a bit faster, not an effort to improve it (like the AB3DII stuff for example).

I posted RC3 with the fixes from Aardvark here...
Forum: Coders. General 18 March 2024, 19:49
Replies: 239
Views: 28,697
Posted By paraj
Looking forward to testing a live demo myself...

Looking forward to testing a live demo myself :great

Much can be said about what the right way to "swap screen" is, but my personal preference is to generally triple buffer (memory permitting)....
Forum: Coders. General 18 March 2024, 19:39
Replies: 20
Views: 1,138
Posted By paraj
NB Ghidra can be a real pain in the neck for...

NB Ghidra can be a real pain in the neck for games written completely in assembly with custom calling convention. Not necessarily for understanding a specific function, but if you're reversing at a...
Forum: Retrogaming General Discussion 18 March 2024, 19:30
Replies: 84
Views: 4,690
Posted By paraj
Thanks a lot! Wish every bug report was a patch...

Thanks a lot! Wish every bug report was a patch list :cool
We'll include it verbatim (with credits of course), and let RC3 (attached) bake for a little while longer.



Excellent! Think this...
Forum: Retrogaming General Discussion 16 March 2024, 10:20
Replies: 79
Views: 5,519
Posted By paraj
Great that the calibration now works! Of course...

Great that the calibration now works! Of course it's easy enough to swap a few bytes, but I wanted to do it in the right place, so I didn't break existing calibrations.


Not sure why $99 worked...
Forum: Coders. General 15 March 2024, 18:10
Replies: 20
Views: 1,138
Posted By paraj
I second this idea. Fully disassembling/reversing...

I second this idea. Fully disassembling/reversing anything but the smallest programs is incredibly tedious. IMHO you'll learn more by looking at different games a bit more shallow than understanding...
Forum: Retrogaming General Discussion 15 March 2024, 17:27
Replies: 79
Views: 5,519
Posted By paraj
RC2 (Yes, release candidate). Only change:...

RC2 (Yes, release candidate). Only change: Hopefully fixes analogue joystick calibration (thx to Aadvark for the hints). Can't check it properly myself, but expected values seem to be written to file...
Forum: Retrogaming General Discussion 13 March 2024, 18:17
Replies: 79
Views: 5,519
Posted By paraj
RC1. I will do RC2 if there are any changes (or...

RC1. I will do RC2 if there are any changes (or joystick calibration thing requires it)
Updates:
- Smoke should now be rendered.
- Changed slave mem requirements (from 2MB chip, 1 MB other to 1...
Forum: Retrogaming General Discussion 13 March 2024, 17:51
Replies: 1,180
Views: 105,454
Posted By paraj
Hope it's OK with Tsak (link requires being...

Hope it's OK with Tsak (link requires being logged into google).
https://i.imgur.com/3Xxzoia.png
Forum: Retrogaming General Discussion 13 March 2024, 16:57
Replies: 84
Views: 4,690
Posted By paraj
I have RC1 ready of the slave, but if it's just a...

I have RC1 ready of the slave, but if it's just a matter of transposing a couple of values, I think I can fix it in the slave. I don't have a analogue joystick (for neither Amiga nor PC) to test...
Forum: Retrogaming General Discussion 11 March 2024, 20:17
Replies: 79
Views: 5,519
Posted By paraj
Update: - Quit key changed to numpad '/' -...

Update:
- Quit key changed to numpad '/'
- Think keyboard issues should be handled
- Added dirty hack that may fix crashes Aardvark were seeing

Known issues:
- Being downed by rocket (I...
Forum: Coders. System 11 March 2024, 07:46
Replies: 6
Views: 468
Posted By paraj
Ah, of course, don't know why I didn't think to...

Ah, of course, don't know why I didn't think to spin up another "thread" :) Thanks
Forum: Retrogaming General Discussion 10 March 2024, 20:39
Replies: 79
Views: 5,519
Posted By paraj
My fix for "1/3" numpad issue is wrong then (it's...

My fix for "1/3" numpad issue is wrong then (it's included in that build). Thanks for reporting. Back to the drawing board.
Forum: Retrogaming General Discussion 10 March 2024, 19:59
Replies: 79
Views: 5,519
Posted By paraj
I don't know, sorry. But you can try attached...

I don't know, sorry. But you can try attached test version instead. It disables "shake" but I hope should fix crash you're seeing (while I work better fix).
Forum: Coders. System 10 March 2024, 19:37
Replies: 6
Views: 468
Posted By paraj
Thanks for confirming, "unfortunately" it...

Thanks for confirming, "unfortunately" it apparently worked well enough in practice that it's now my problem once I'm changing stuff (I'm sure you know this issue...).



Problem is that...
Forum: Coders. System 10 March 2024, 18:47
Replies: 6
Views: 468
Posted By paraj
ScrollVPort called from VBlank interrupt

Sorry if this is basic stuff, I'm not used to being "system friendly" :)
I'm working on hopefully optimizing WHDLoad version of TornadoAGA a bit (https://eab.abime.net/showthread.php?t=117092), so...
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