Last Updated or created 2024-05-30
UPDATE after filming demo:
Commodore font and better logo.
(Font also in info screen)
50000+ Songs / 1600+ Artists
Controls:
TODO:
Last Updated or created 2024-05-30
While I’ve been buying goodies from https://gotek.nl, I missed a place to buy hard to find obscure items.
And then I found https://heinpragt.nl (Last year)
Awesome! Retro parts old and new, some are very hard to find!
Last Updated or created 2024-05-29
I needed to get some data from protected sheets.
But I got this on 100+ files:
F that:
Made a script to remove sheet protection and ran this in a loop over all files.
Bye bye protection.
./script.sh /mnt/fileserver/sensordata001.xlsx Parsing /mnt/fileserver/sensordata001.xlsx Archive: this.zip inflating: tmp/[Content_Types].xml inflating: tmp/_rels/.rels inflating: tmp/xl/_rels/workbook.xml.rels inflating: tmp/xl/workbook.xml inflating: tmp/xl/worksheets/sheet4.xml inflating: tmp/xl/worksheets/sheet2.xml inflating: tmp/xl/worksheets/sheet3.xml inflating: tmp/xl/worksheets/sheet1.xml inflating: tmp/xl/styles.xml inflating: tmp/xl/theme/theme1.xml inflating: tmp/xl/sharedStrings.xml inflating: tmp/docProps/core.xml inflating: tmp/docProps/app.xml adding: [Content_Types].xml (deflated 78%) adding: docProps/ (stored 0%) adding: docProps/core.xml (deflated 49%) adding: docProps/app.xml (deflated 54%) adding: _rels/ (stored 0%) adding: _rels/.rels (deflated 60%) adding: xl/ (stored 0%) adding: xl/worksheets/ (stored 0%) adding: xl/worksheets/sheet2.xml (deflated 92%) adding: xl/worksheets/sheet1.xml (deflated 46%) adding: xl/worksheets/sheet4.xml (deflated 92%) adding: xl/worksheets/sheet3.xml (deflated 92%) adding: xl/_rels/ (stored 0%) adding: xl/_rels/workbook.xml.rels (deflated 77%) adding: xl/workbook.xml (deflated 56%) adding: xl/theme/ (stored 0%) adding: xl/theme/theme1.xml (deflated 78%) adding: xl/styles.xml (deflated 57%) adding: xl/sharedStrings.xml (deflated 23%)
Bash script:
It leaves the original intact, but makes a unprotected copy named the same with unprot_ in front of it.
#!/bin/bash
if [ -n "$1" ]; then
echo "Parsing $1"
else
echo "usage : scriptname /path/to/sheet.xlsx"
exit 0
fi
name=$(basename $1)
dir=$(dirname $1)
rm -f this.zip
rm -rf tmp
mkdir tmp
cp "$1" this.zip
unzip this.zip -d tmp
find tmp/xl/worksheets/ -iname *xml -exec sed -i -e "s/<sheetProtection.*\/>//g" {} \;
cd tmp
rm -f "$dir/unprot_${name}"
zip -r "$dir/unprot_${name}" *
cd ..
Last Updated or created 2024-06-05
Started working on my breadboard version of a 68k computer.
When it’s working, I’ll make a PCB version.
Using almost only parts I still have. (No 8mhz crystal)
The 68000 being 24 bit address and 16 bit data needs 2x 8-bit roms and 2x 8 bit ram, but i didn’t have the components yet in this picture.
While tinkering with above, my Fatter Agnus chip came in.
To make a 1mb chipmem version of your rev 5 amiga (PAL)
You need to have a newer version of the Agnus chip (I had 8371, and bought a 8372a) AND you need a 512kb trapdoor memory expansion.
An unmodded rev 5 will see 512kb Chip mem and 512 Fast mem.
Replacing the Agnus 8371 for 8372a:
I lost my PLCC puller, so I modded a paperclip into a puller 🙂
When placing the new chip, I had to tape pin 41 for PAL version.
I used Polyimide Film tape.
Next I had to cut the jumper 2 connection and solder the other pads.
(Bottom and middle disconnect and middle and top bridged)
Next was another cut on the PCB, this disables the trapdoor card detection.
Success!
Last Updated or created 2024-05-28
I think we’ve seen Maderia .. 🙂
I bought a little notebook while being there.
I wrote about 12 pages of ideas, schematics and projects to start.
8085 Cartridge revisited
Problem with cartridge: prg is 17k, exomized 10k.
So you need 2 banks of 8k.
This disables basic rom, needed for the program.
The program needs to be relocated to 0x800 anyway.
So my exomizer options will take care of that.
But the basic is not being enabled again.
exomizer sfx sys -o data.exo -Di_ram_enter=\$37 -Di_ram_during=\$34 -f'LDA #$37 STA $01' 8085.prg xa frame.asm -o frame.bin x64 -cart16 frame.bin
Result … JAM
Last Updated or created 2024-06-11
For my new SBC I’ll need a machine code build environment.
This is what I’ve setup now.
My main workstation is Linux based. While this setup is Linux based, vasm should work on other operating systems also.
Getting and compiling vasm for 68k
wget http://sun.hasenbraten.de/vasm/release/vasm.tar.gz tar xzvf vasm.tar.gz cd vasm # Building make CPU=m68k SYNTAX=oldstyle # Using ./vasmm68k_oldstyle -m68000 -Fbin -dotdir -no-opt source.asm # this generates a.out # Dumping the file (byte separated and with a offset of 0x8000) xxd -g 1 -o 0x8000 a.out | head 00008000: 30 3c aa aa 4e f9 00 00 80 04 00 00 00 00 00 00 0<..N........... 00008010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00008090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ # But my 68k needs an ODD EVEN eeprom # so I used another tool - romsplit git clone https://github.com/ullman/romsplit cd romsplit make all # Using romsplit ./romsplit -s a.out odd.rom even.rom # Output xxd -g 1 -o 0x8000 odd | head -1 ; xxd -g 1 -o 0x8000 even | head -1 00008000: 30 aa 4e 00 80 00 00 00 00 00 00 00 00 00 00 00 0.N............. 00008000: 3c aa f9 00 04 00 00 00 00 00 00 00 00 00 00 00 <............... # Burn these with minipro
Disassemble
m68k-linux-gnu-objdump --disassemble-all --target=binary --architecture=m68k a.out
Last Updated or created 2024-05-27
Follow-up on previous post.
I’ve posted about sounds before, annoying!
The Wilhelm scream is a stock sound effect that has been used in many films and TV series, beginning in 1951 with the film Distant Drums. The scream is usually used when someone is shot, falls from a great height, or is thrown from an explosion. See also Squeaky door.
About movie props
Not that annoying, but I can’t think about anything else as the previous film I saw the prop in.
Props in They Live (1988) I saw in 2024
Wait a minute! Thats from Ghostbusters (1984)
Even another film exists using the same prop (never seen this movie)
The prop was made using a shoe polisher thingy b.t.w.
Last Updated or created 2024-05-27
While I’m not really a gamer, I played a very old game I loved playing on my Amiga.
Its Ports of Call.
Are there others like this game?
Ports of Call is a 1986 business simulation game developed by German duo Rolf-Dieter Klein and Martin Ulrich, and published by Aegis Interactive Entertainment.
The game simulates the management of a global freight transport company, where the player charters freight, and, using the accumulated profit, can buy more and better ships. Minigames include manually piloting your ship into a specified berth in the harbour and picking up survivors from a life-raft.
I loved the manoeuvring part, especially the large ships with both front and back rudders.
Here are some screenshots from Amiga Forever emulator
Post about other old games:
Last Updated or created 2024-05-16
Test picture of a multiprocessor computer setup.
Using buttons on the right, I want the possibility to change between systems and keyboard settings.
Also, multiple software/OS slots for SDCards will be on the right.
The lid containing the keyboard has a handle!
After laser cutting a nice front, it could become a nice road warrior hacking station.
I’m going to replace the wireless keyboard, probably with a touch display and a programmable layout for keyboards.
Something like below
Some layouts:
I’ll probably buy this one from waveshare
Info about Faux86
Last Updated or created 2024-05-27
Not my model, but I altered the graphics, and sizes.
See https://www.thingiverse.com/thing:23817
Very cool, you can use openscad to edit the model.
(See previous posts why I am a fan!)
Badly coloured with permanent marker.
I really need a printer like my friend Duncan!
