Out at RISC OS London - Drag 'N Drop 8i1
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Chris Dewhurst (1709)
167 posts
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Volume 8 issue 1 will be available at the London Show. Afterwards it will be available to sample/buy at www.dragdrop.co.uk and also emailed to subscribers who took out the special offer for vol.8. In this issue: Three pages of news, comment and application updates, plus beginner’s tips. Files of the World – the series continues with a look at Midi files and we develop an elementary Midi file player Forth on the Pi – find out how much fun it is to program in Forth on your RISC OS Pi! Machine code stars – several routines to scroll stars across or down the screen with games in mind. Floozy – can you build the pipeline before the water leaks out? Find out in this type-in game. Python Primary School – testing a peripheral connected to your Pi’s GPIO port with some Python code. Armcode for Beebsters – Have you programmed in 6502 code but struggle with ARM assembly language? This article is for you. 256-Colour Palette Switching – how to achieve palette switching for animated effects in 256-colour modes Fibonacci Wallpaper – create beautiful patterned wallpaper with a few lines of BBC Basic. MemAlloc – control aspects of the RISC OS memory with new star commands supplied by this type-in relocatable module. Autofocus – Short machine code routine to automatically focus on the window under the pointer. Articles are written in an informal style designed to encourage new or returning users and programmers. Each issue of Drag N Drop costs £3.50 (magazine only) or £4.50 (magazine plus ‘type in’ programs) on a pay-as-you go basis when purchased through the Drag N Drop website at http://www.dragdrop.co.uk. You can “try before you buy”: free samples are available for download. You can also purchase it from !Store. If using Netsurf and Paypal to purchase Drag ’N Drop please remember to disable javascript1. 1 Click menu on Netsurf’s Iconbar icon > Choices > Content > Disable JavaScript |
