Basic Vector Code wanted

[redblade]

Hi.

ER does any one have any basic Vector code in asm which they would like to pass my way please :).

On a boot block of a ANC disk, there is a 1k vector intro, but the boot block seems to be compressed so am having trouble trying to dissassemble the boot block.

[girv]

You could always, oooh I dunno, decompress it maybe? ;) If you're able to understand vector code just from disassembly you're able to run it through a simple decompressor first...

Check on Aminet - ISTR there was some simple example vector code on there.

[redblade]

hey matey I'm having trouble dissassembling the boot block. I can make out some of the code ie where it allocates memory, and then where the program jumps to.

but when I use the 'g' command on the arc to jump to that addy it just does a rainbow effect and i have to reset WinUAE.

I'll have a look at aminet again.

Also yes I do have that vectors.txt that comes on one of 'the source' compilations but I suck at coding, and just can't code from scratch, unless it's something easy like

'hello world', opening a screen and a window, etc etc.

btw: the vector code I want is that 3d gfx stuff, not the hardware vectores ie $6c.w

[AmiGer]

Can you please post the 1024 Bytes bootblock ? Maybe somebody can help you...

[OddbOd]

How to code vector demos on a MC68000 (http://www.programmersheaven.com/zone20/cat115/3407.htm) by Asterix of Movement

It's a tutorial with example sources at the end, should be a good enough starting point.

[mr_0rga5m]

Also can be found here (http://www.mways.co.uk/amiga/howtocode/) .. (On Jolyons site) :)

[redblade]

Hi I mentioned I had that file that yous mentioned in post #3, as I got it from 'the source' disks, from one of those 'how to code' tutorials.

@AmiGer. Hey matey uploading the disk now, its ANC utilities disk #21, it'll be in the zone.

[AmiGer]

Here we go...

the trick is, that this isn't a 1k bootblock, it makes a DoIO-read and reads $1000 bytes from the offset $400 and executes this at the absolute address $24ed8.
I post the complete source, IRA config file and binary for you. Have fun.

BTW: I found out that you can change some vector parameters by moving the mouse and pressing keys on the numeric keypad... nice :)

ira -binary -a -offset=24ed8 -config vector2

[redblade]

Cheers Matey :).

I know about moving the mouse gave different affects but did not know about the numeric keypad.

Cheers :).

[mr_0rga5m]

I know about moving the mouse gave different affects but did not know about the numeric keypad.


Then you didnt boot the disk .. :D

[AmiGer]

For me I didn't boot the disk.
I've seen the keyboard handler in the source... But who reads so much text ??? :)

[mr_0rga5m]

yea same here .. i found it before i booted the disk too. :)

so redblade, you done anything with the source yet mate ?

[Codetapper]

No offense, but if you get stuck disassembling a 1k bootblock which just does a few simple DoIO commands, you are unlikely to get anywhere with a full on program using the blitter to draw vectors...

[redblade]

No offense, but if you get stuck disassembling a 1k bootblock which just does a few simple DoIO commands, you are unlikely to get anywhere with a full on program using the blitter to draw vectors...

Yep your pretty much 100% right there :).

@Mr_Orgasm: not much, Having trouble assembling it in AsmOne1.6, the first error was with the ABSEXECBASE equate. got that fixed, just did a replace to $4, but it should of worked without that.

it just seems to be some label problems with assembling it :/.

[AmiGer]

redblade, don't hurry, every amiga cracker has once started to use miggy assemblers and disassemblers. I think it's really cool that a 21 old guy is doing this... :)

Having trouble assembling it in AsmOne1.6

You could try phxasm instead...

[redblade]

redblade, don't hurry, every amiga cracker has once started to use miggy assemblers and disassemblers. I think it's really cool that a 21 old guy is doing this... :)

You could try phxasm instead...

heh cheers dude, but i'm not a cracker :), although a hacked version of roxbox would be nice hehe.

nah just want to see some of my own vectors rotating in a screen in front of me, that all like a cube/stealth bomber etc.

[redblade]

http://groups.google.com/group/alt.sources.amiga/browse_thread/thread/4fa7bbe02101853/fd0b57c9bf725ecf?lnk=st&q=amiga+vector+moveq&rnum=4#fd0b57c9bf725ecf

managed to find some vector code on google Groups. Good old google groups, lots of interesting posts on there.