It’s just as well we saved a snapshot because when we tried out our tape it didn’t load, not sure what’s going on there. We also did what you couldn’t do back in the day and saved a snapshot. This is because all too often in days gone by we’ve fallen foul of the scenario where you run the program and it crashes wiping all your hard work. Once we’d typed the program in and checked it we decided to save it to tape (.tzx file in this case) before running it.
#Zx81 emulator raspberry pi plus#
On the plus side…are those hi-res graphics? Safety First It also allows you to trigger a RAM pack wobble on demand so we gave it a go for old times sake: Something is definitely not right here, you did save it to tape didn’t you? In pursuit of total realism the makers of EightyOne have included a RAM pack wobble mode that delivers the fatal disconnection randomly. RAM pack wobble of course is not an issue on an emulator but childhood conditioning brought back the painful memories of sheer despair as hours of typing vanished in the blink of an eye. The other distant memory that returned to us was the fear of RAM pack wobble.
#Zx81 emulator raspberry pi Pc#
Finding those keystrokes on our PC keyboard required much cross referencing with Greta to see which keys did what but, as if by magic, some long un-accessed muscle memory did kick in and help us find the keywords quickly. EightyOne includes a picture of the ZX81 keyboard to enable you to see what all the keys do but we got Greta out and perched her next to us for reference so she could at least be involved.īack in the day the ZX81 tried to make life easy for you, any keywords you needed could be entered with just one keystroke. To type the program in we just used the PC keyboard that EightyOne makes behave like a ZX81 keyboard. Not being complete sadists we decided to go for one of the shorter programs near the start of the book, after some deliberation we chose Battleships. We downloaded EightyOne and set about deciding which program to type in from our book. So instead we fired up our PC and surfed the world wide web all the way to home of the ZX81 emulator EightyOne. Greta with her Z80 ROM (thanks for the correction chip not where it should be.
We would have used our resident ZX81 ‘Greta’ but sadly she is currently not in an operational state due to some modifications (don’t ask). To satisfy our retro computing urges we decided we’d type in a program, it is the school holidays after all. We managed to unearth a copy of “(Not Only) 30 Programs for the Sinclair ZX81” that was published by Melbourne House in 1981.
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