If you, say, have a bad ASSIGN and startup halts, run LoadWB. You should be able to open some sort of text editor and fix S:User-startup.

If you Ctrl-C lha while it's running, it will very likely crash the Amiga!

If you want to use longer filenames and get better performance, you'll need to set up partitions with PFS3…

…unless you have a very modern OS 3.2, in which case you can use FFS with long filenames.

• https://johan.driessen.se/posts/Setting-up-a-Compact-Flash-card-with-Classic-Workbench-and-WHDLoad-for-Amiga-600-1200/
• Download http://aminet.net/package/disk/misc/pfs3aio
• Unpack pfs3aio into L:
• Create a new partition in HDToolbox
  • File System → Add/Update
  • Add L:psf2aio if not there already
  • DosType: 0x50465303
  • File System → Change
  • Select PFS/03
  • MaxTransfer: 0x1fe00

• Go to the partition in HDToolbox and do the Add/Update filesystem steps from above.

• Set the Mask to 0x7ffffffe: https://michalsc.github.io/Emu68/tutorials/SD_Preparation.html

Think building a distribution icon/window template and you want to group like icons together, but don't want to try and move them pixel by pixel using the mouse. This works in OS 3.2.

• Create an aligner folder and open it
• Move the set of icons you want to align into that folder
• Resize the window to encompass the entire set of icons in the arrangement you want
• Put the icons roughly in the locations you want them
• Window → Clean Up By → Column
• Move the icons back to where they came from
• Snapshot the icons

If a disk is left dirty due to the system resetting/powering off during a write, you'll keep getting messages about the drive not being validated, especially if you try to write to the disk. You have two options:

• Wait. If you look at the Info for the drive, you'll see it's validating. Eventually it will stop validating.
• Run the latest DiskSalv on the drive set to Repair mode.

Run PROTECT <script> +s to make the script executable

Set FAILAT 21: http://www.jaruzel.com/amiga/amiga-os-command-reference-help/failat.html

$RC will contain the return code of the last command: https://www.amigans.net/modules/newbb/viewtopic.php?post_id=131968#forumpost131968

CPU CHECK is a capabilities check, not an exact model check: CPU CHECK 68000 on an 020 returns 0 (success)

DACONTROL lets you mount disk images via script.

ECHO >>File "What ever" is how you append text to another file.

• grep for 020 or higher: http://aminet.net/package/text/misc/grep-2.5-bin-m68k
  • Needs ixemul.library 48 or higher.
• File-X for binary file exploration: http://aminet.net/package/disk/moni/FileX-68K

• http://aminet.net/package/pix/mwb/MWBArchive

The Amiga still has an active demoscene.

• http://www.amigamega.com/demos.html

• Command reference: http://www.jaruzel.com/amiga/amiga-os-command-reference-help/

Scalos is a Workbench replacement. The website (as of 2023-04-09) is down.

Amiga Icons in Workbench come from a sidecar .info file. The .info file contains:

• the icon image
• metadata to help launch the program if double-clicked in Workbench

Icons have a few types. You can edit the type in SYS:Tools/IconEdit:

• Drawer - Should be associated with a directory in the filesystem
• Project - Should be associated with something that is opened in another program (Ex: a text file that should be opened by TextEdit)
• Tool - Should be associated with an executable that is run when opened (Ex: a binary you created that can run from the Shell)

Amiga executables and libraries are built out of hunks.

AmigaOS Development

• https://github.com/cnvogelg/amitools
  • Vamos for running 68k Amiga binaries in an emulator
  • HDF tools for manipulating hard disk files
  • Lower level dev tools

• Enable mouse_integration = 1 in a machine's config for the mouse to not get caught by the Amiga. Needed for use with drawing tables and for my own sanity.
  • Unless you want to use something written in AMOS! Then turn it off.
• You can configure how/when .uaem metadata files are written to the host drive: https://fs-uae.net/docs/options/uaem-write-flags

Normally FS-UAE strives for accuracy. If you need speed (say, if you're setting up WHDLoad games), you can ramp up the speed a bunch:

accuracy = -1
uae_cpu_multiplier = 2000

Retargetable Graphics

FS-UAE stopped working on Debian Bookworm. Steps to get it working again:

• sudo ln -s /usr/lib/x86_64-linux-gnu/dri /usr/lib/dri: https://askubuntu.com/questions/1451610/mesa-loader-failed-to-open-swrast-ubuntu-20-04
• LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libstdc++.so.6 fs-uae-launcher: https://github.com/Ultimaker/Cura/issues/11856#issuecomment-1117025272