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RAD for SpeccyJust wanted to share a fine technique of rapid app development for ZX Spectrum in C. Programming without debugger is a pain. It comes down to needing…
... I commonly create a 1bpp bitmap, and atom functions to ... displaying a hi-res bitmap and clipping its top ... br /> {
// We need bitmap rectangle to calculate.
// OPTIMIZE ... coordinates, calculate y bounds inside bitmap.
int x2, y2 ... -
C64 Intro Tape ?Just a quick question about the C64, a cursory Google did not really help but I'm not really the best at finding stuff. As with our Speccy's you g…
... the 'slim' C64 appeared to replace the breadbin type case, was ... -
128K +3 RepairHi guys, I need some help to diagnose a faulty 128k +3. The unit is completely unresponsive. I had tested the PSU and found odd values in it. …
... was burned, so I had replace both and now all pins ... -
Horizontal black and white bars on ZX Spectrum 128k ToastrackSo I found a working 128k toastrack on a local auction site. After playing around with it for a few days I noticed the sound of the AY chip was reall…
... the AY. I decided to replace the R115 with two resistors ... -
ZX Spectrum 128k Toastrack with horizontal black and white barsSo I found a working 128k toastrack on a local auction site. After playing around with it for a few days I noticed the sound of the AY chip was reall…
... the AY. I decided to replace the R115 with two resistors ... -
QUESTIONI got this cracked version of this game: http://www.worldofspectrum.org/infoseekid.cgi?id=0027364 I just want to hear if there is any use of cr…
... use of cracked versions to replace a Z80 file on WOS ... -
Fixing a poorly Issue 3 - Odd faults.Here's one for you Spectrum fixers, I warn you it's a long one. I've spent a couple hours this evening doing several repairs on a rubber keyed Speccy…
... plan of action was to replace the 7805, all electrolytic capacitors ... -
Help! Why does it do that?I use Wordpad for most of my writing and now my cursor overwrites instead of leaving a blank space. So in other words if I typed in the word OME by …
... to delete the M and replace it with N it would ... -
Graphics Card ProblemsI bought myself a new Nvidia mini GTX 1060 graphics card from Overclockers to replace my current one. I got it on Sunday but i can't get my old 1050…
... graphics card from Overclockers to replace my current one. I got ... -
I've bought a Sony Minidisc deck in 2018 - For the Love of MinidiscsI've got a little HIFI obsession going at the moment, not only tape decks, but mini disk and vinyl. I recently brought a second Technics SL1200 becau…
... end mini disc player to replace my late 90s low costone ... -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... -2 ULA. Just had to replace TR4 and it worked. Did ... -
LM317T modern replacementQuick question to everyone, I am back to modding my opus discovery 1 and looking at the LM371T regulators and wondering if there is a modern equival…
... the 7805 that i could replace both on board with to ... -
Sinclair 16k Ram pAck Issue3 schematicsHi guys, I am willing to repair a 16k ram pack for the ZX81 but I cannot find any schematic of the ISSUE 3 ram pack. I could only find a schematic…
... rid of the 4116 and replace them with 8118 ram which ... -
servicing a HUSH 80P like the CLIVE PRINTER and requesting some info about itGreetings people, I am finishing reviewing a disk system for spectrum and need to repair the printer, it is a HUSH 80P, similar to the CLIVE printer …
... remains of melted rubber and replace with new rubber
so ... -
AugmentinelEnhanced Spectrum emulation isn't a new concept. Spec256 adds 8bpp graphics to some Spectrum titles. TileMap uses code hooks to synchronise game stat…
... accuracy of object selection.
- replace the stippled rendering with accelerated ... and positional sound effects.
- replace the slow view panning with ... -
AMPLIFICATION (portable)Vaguely related to [url=https://www.worldofspectrum.org/forums/discussion/comment/952017#Comment_952017]that last thread I made[/url]... Ast_A_Moo…
... (ish): when I needed to replace my venerable old iRiver H340 ... -
Replacing voltage regulators - need to sanity check a few things pleaseHi Everyone I'm in the process (with a lot of help from some friends at Greenford Computer Club), of giving my three Speccys some much needed prev…
... and we are planning to replace this with a Traco Power ... Power TSR 2-2450 to replace its legacy regulator, or ... the entire heatsink assembly and replace it with the same ... transistor would be needed to replace TR8 on the +2 ... I would like to replace it as it's ... -
Tin Cans, a two-way chat example in BASIC for the SpectranetThis is an example of writing code to utilize the Spectranet Ethernet interface in BASIC. It will be going into the Getting Started guide for the mos…
... TNFS file server, or to replace the %aload with your own ... -
InlaysNot sure this is the right place for improved inlays, but I take the chance :-) Was told these inlays needs to be done in better quality, so feel …
Another Spectrum is brought back to life.Hi Spec-chums. I have been having bit of busy afternoon with repairs today. I've brought back to life a Panasonic Super-VHS recorder, and more intere…
... jobs I could do like replace the caps, although I really ...SpecBAS really needs a manual!That Word doc that I converted to an RTF for you Dunny and ASH-II, is still somewhat sparse. I spent bloody hours PLOT/DRAWing a landscape to steer m…
... bank’s memory represents the bitmap surface, row by row, top ...How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... just that part of the bitmap, then blit to the screen ...MIA: Spectrum Games (Compilation) - JRS SoftwarePerfect TZX of this compilation: https://www.worldofspectrum.org/infoseek.cgi?regexp=^ZX+Spectrum+Games$&pub=^JRS+Software+Ltd$&loadpics=1 As I…
... renamed to 'Spectrum Games', and replace 'ZX Spectrum Games'. No mention ...Modifying a speccy to +5v only operation.Just a thought experiment so far. Let's say i wanted to make a more resilient spectrum by getting rid of the DC-DC converter circuit. This would remo…
... is easy to get around. Replace the 4116s with 4164s or ...Fastest emulator screen renderingHi, I'm developing an algorithm for fast emulator screen rendering and here is what I came up with. 1) Use 4bpp indexed image format as target …
... for every line directly into bitmap) and it is really fast ...Any RC hobbyist's out there?I got back into CB radio several years ago now. Apart from making a couple of long distance DX's, it's really dead round my neck of the woods with no…
... , a big boys toy) to replace the CB hobby and been ...Al's Spectrum Annual 20202019 was an exceptional year in terms of both quantity and quality for the Spectrum homebew scene. Wishing to have a say about the titles that impres…
... =http://www.bitmapsoft.co.uk]Bitmap Soft[/url], which they both ...Mighty Maths ProgramsIn a break from typing in listings from 37-year-old magazines, I had a sudden urge to write a maths-related program, as I do, occasionally. Some, suc…
... as the next hex bit, replace that with a zero and ...
