Commodore Amiga 1200 Full Recap.

Forth, the Language.

Forth is a different language. It’s aged and a little weird.
What’s cool about it? It’s a very low-level and minimal language without any automatic memory management. At the same time, it easily scales to become a very high-level and domain-specific language, much like Lisp. Compared to C64 Basic, Forth is more attractive in almost every way.

It is a lot more fast, memory effective and powerful. Compared to C, specifically cc65, the story is a little different. It’s hard to make a fair comparison. Theoretically Forth code can be very memory efficient, and it’s possible to make Forth code that is leaner than C code. But it is also true that cc65 code is generally much faster than Forth code.

Download: durexForth v1.6.1 (D64/CRT) + Manual (1069)

source: csdb.dk

Commodore Amiga 2000 PSU Upgrade.

I have replaced the PCB of the Commodore Amiga 2000 power supply because tired and died after many years of use and there was not the slightest sense of the repair.

The difficulty to the present day is finding a power supply ATX v1.0 with -5v (white wire) in the later versions of ATX PSU was removed, the Amiga 2000 uses this voltage for the ZORRO cards.

*UPDATE*

If you have trouble to finding an ATX power supply with the -5v output (white wire on the connector) you could use a voltage regulator LM 7905 to adjust the voltage from -12v (available in all ATX power supplies also of the latest generation) to -5v.

Due to the missing TICK signal you need to move the jumper J300 to the position 2-3 and if you have an Amiga 2000 REV4x you need to move the jumper J34 to the position 2-3.

Below the work was done.

Gallery:

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source: John “Chucky” Hertell Blog

Some months ago i have decided to upgrade the power supply of my Commodore Amiga 4000 with a good ATX power supply, compact and with a high amperage.

I have found the SFX POWER 2 300w from the German Company: Be Quiet. The power supply is perfectly suited to my needs.

Below the work was done, anything of complex if not fit the PCB inside the power supply of the Commodore Amiga 4000.

Gallery: