Reply to thread
GBAtemp.net - The Independent Video Game Community
Search
Search titles only
By:
Search titles only
By:
Reply to thread
GBAtemp.net - The Independent Video Game Community
Home
Log in
Terms & Rules
Donate
Forums
New posts
Search forums
Groups
Public Events
New
New posts
New resources
New blog entries
New profile posts
New blog entry comments
New threadmarks
Latest activity
Cheats
Cheat Codes Add and Request group
The Legend of Zelda: Tears of the Kingdom cheat codes
Pokémon Legends: Arceus cheat codes
Xenoblade Chronicles 3 cheat codes
Fire Emblem Engage cheat codes
Request a cheat...
Tutorials
Nintendo Switch tutorials
Nintendo 3DS tutorials
Nintendo Wii U tutorials
Reviews
Overview
Official reviews
Downloads
Latest reviews
Search resources
Blogs
New entries
New comments
Blog list
Search blogs
Chat
Top chatters
Search
Search titles only
By:
Search titles only
By:
Log in
Register
New posts
Search forums
Log in
Register
Home
Forums
PC, Console & Handheld Discussions
Computer Technology and Gaming
Cracktros - How are they made?
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Steve Antony Williams" data-source="post: 5931170" data-attributes="member: 379090"><p>For the record on the C64 we never used the term "cracktro" at the time, we always said "intro". C64 intros are always written in machine code (6510 which is basically 6502 with a few extras bits and bobs) and would use raster bar effects, sound routines etc. The program containing the intro would start at $0801 and the intro (usually but not always) would be at the beginning from say $0801 to $1000 with the music data at $1000 to $1400 (typical values, not cast in stone). The cracked game would then "sit" after the intro and music data and in the intro code it would check for a key press (typically the space bar) then copy a small piece of code to a spare piece of RAM (I seem to recall $0207 and $0334, failing that $0400 to $ 07f8 was the display memory, hence why you see gobbledegook characters on some C64 games when moving RAM or decompressing. The small piece of code would "move" the program from say $1400 down to $0801 and then jmp$ to the start address and decompress then run (all C64 single file cracks load at $0801)</p><p></p><p>I only did 1 or 2 intros myself on C64, they weren't very good but I have done a couple of the Atari ST and the Commodore Amiga.</p><p></p><p>You can see any of the intros I used in my C64 days by looking for "zenith c64" on Youtube.</p><p></p><p>Steve of Laser/Zenith/SCS*TRC/Avantgarde/TRSi</p><p></p><p>[MERGED]auto[/MERGED]</p><p></p><p>Here's one of my favourites from Laser: [MEDIA=youtube]ojzrYB_Nbho[/MEDIA]</p></blockquote><p></p>
[QUOTE="Steve Antony Williams, post: 5931170, member: 379090"] For the record on the C64 we never used the term "cracktro" at the time, we always said "intro". C64 intros are always written in machine code (6510 which is basically 6502 with a few extras bits and bobs) and would use raster bar effects, sound routines etc. The program containing the intro would start at $0801 and the intro (usually but not always) would be at the beginning from say $0801 to $1000 with the music data at $1000 to $1400 (typical values, not cast in stone). The cracked game would then "sit" after the intro and music data and in the intro code it would check for a key press (typically the space bar) then copy a small piece of code to a spare piece of RAM (I seem to recall $0207 and $0334, failing that $0400 to $ 07f8 was the display memory, hence why you see gobbledegook characters on some C64 games when moving RAM or decompressing. The small piece of code would "move" the program from say $1400 down to $0801 and then jmp$ to the start address and decompress then run (all C64 single file cracks load at $0801) I only did 1 or 2 intros myself on C64, they weren't very good but I have done a couple of the Atari ST and the Commodore Amiga. You can see any of the intros I used in my C64 days by looking for "zenith c64" on Youtube. Steve of Laser/Zenith/SCS*TRC/Avantgarde/TRSi [MERGED]auto[/MERGED] Here's one of my favourites from Laser: [MEDIA=youtube]ojzrYB_Nbho[/MEDIA] [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
PC, Console & Handheld Discussions
Computer Technology and Gaming
Cracktros - How are they made?
General chit-chat
Help
Users
Settings
Notifications
Miscellaneous
Inverse message direction
Display editor on top
Enable maximized mode
Display images as links
Hide bot messages
Hide statuses
Hide chatter list
Show messages from ignored users
Temporarily disable chat
Receive mention alerts
Sound notifications
Normal messages
Private messages
Whisper messages
Mention messages
Bot messages
Desktop notifications
Normal messages
Private messages
Whisper messages
Mention messages
Bot messages
Options
Options
View top chatters
Mondooooo
Loading…
Psionic Roshambo
Loading…
BakerMan
Loading…
The snack that smiles back, Ballsack!
Veho
Loading…
@
Psionic Roshambo
:
Lol gas station weed isn't gas?
6 minutes ago
@
Mondooooo
:
it's Archive of our own
6 minutes ago
@
Mondooooo
:
the worst fanfic website
6 minutes ago
@
Mondooooo
:
it contains lots of horrible porn
6 minutes ago
@
SylverReZ
:
Don't think I wanna know.
5 minutes ago
@
Mondooooo
:
me neither
5 minutes ago
@
Psionic Roshambo
:
Dr Frankenstein creates his perfect woman?
5 minutes ago
@
Mondooooo
:
i don't wanna even know
5 minutes ago
@
Psionic Roshambo
:
Would his monster be considered necrophilia?
4 minutes ago
@
Mondooooo
:
that's archive of our own
4 minutes ago
@
Mondooooo
:
it includs
4 minutes ago
@
Mondooooo
:
*includes
3 minutes ago
@
Mondooooo
:
lot's of illegal porn
3 minutes ago
@
Mondooooo
:
it's fucking bad
3 minutes ago
@
Psionic Roshambo
:
Princess Peach's juice story?
2 minutes ago
@
Psionic Roshambo
:
Bowsers Super Crown Mayhem?
2 minutes ago
@
Mondooooo
:
oh no
2 minutes ago
@
SylverReZ
:
@Mondooooo
, Yeah thats worse. Much worse than the dark web.
1 minute ago
@
Mondooooo
:
archive of our own should be banned by the CIA
1 minute ago
@
SylverReZ
:
@Mondooooo
, No. Sites gets shutdown by the FBI.
A moment ago
@
Mondooooo
:
@SylverReZ
and i texted at the same time
A moment ago
@
Mondooooo
:
oh
A moment ago
@
Mondooooo
:
i though the CIA would ban it
A moment ago
@
Mondooooo
:
but the FBI Would
A moment ago
@
Mondooooo
:
why not report the website to em?
A moment ago
Submit
@
Mondooooo
:
why not report the website to em?
A moment ago
Chat
4