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Audio Output Filtering in EmulatorsI am messing around with various beeper-related code at the moment and have a question related to the audio output from emulators... I've written s…
... question related to the audio output from emulators...
output waveform (8bit signed, 44100Hz ... />
However, the resulting output from my code sounds pretty ... same as the beeper output from my old vbSpec ... -
An update on ZX BASIC support for the SpectranetOne for zxbruno, I hope :-) So just an example of what now can be done with the network filesystem and BASIC. The following listing is of a program …
... =1 TO 20
1030 INPUT #4;g$;f$(i);t ... /> 2080%oneof 2500
2090 INPUT #5;a$
2100 IF ... PRINT # to that channel and INPUT # to get data off it ... port 2000, and pass the output to a small Perl script ... -
Test / comments wanted: new composite video output for +2A/+3I've been fiddling with the composite video mods for +2A and +3... with no luck. Because neither desings in [url=http://www.secarica.ro/html/zx_zone.…
... />
The example throws video output through a voltage divider to ... computer I get same video output as with other composite mods ... -
Correct flag response to BIT n,(HL) etc.When running the test program suggested by Arjun (thanks again), all intructions are passing the flag tests except the BIT n,(HL), BIT n,(IX+dis) and…
... (I like the simulated TV output), and it passes all BIT ... ,(IX+d)?.
Any input will be greatly appreciated, thanks. -
Video problems in a +2BI was looking for the original thread, but I didn't found it... I've got a +2B with video problems through RF modulator (nothing special, all of my …
... have a very selective RF input), so I build a composite ... transistor, and a modified composite output from a 48k), showing the ... computer with a working composite output (for recording with my ... part (remember that the RF output is not disabled / disconnected).
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... clock from the 3.5MHz input, you'd divide by ... a couple of 3 state output drivers (which are connected ... 'll have a 4MHz input going to both flip flops ... This then goes to the input pin of the voltage controlled ... green wire is the control input (voltage from the low ...ZX +2 - Can I connect external tape player?Is it possible to connect external tape player to ZX Spectrum +2/A and use it instead of the internal player? The connector is marked tape/sound, but…
... it's only for output or also for input. The documentation for ... can be used for both input and output with a special break ...Damaged sound-output of the spectrum +3Hallo folks, a few days ago I got a Spectrum 128 + 3, but there might be problems with the sound-output. For comparison I have got a Spectrum 128 + …
... be problems with the sound-output.
For comparison I have ...Input MagazineThe WOS archive only currently has cover scans for the Input magazine. The full scans of the first 26 are available at -link removed- is anyone is in…
The WOS archive only currently has cover scans for the Input magazine. The full scans of the first 26 are available at -link removed- is anyone is interested.TIMEX 2048: anybody can convert GIGASCREEN?Hi. Timex 2048 has stable GigaScreen (no flickering at all). I know there are several big TC2048 fans on the Forum. Could anybody write a viewe…
... />
Timex 2048 has stable GigaScreen (no flickering at all).
GigaScreen for Timex' hardware mode?
Basic hardware developmentRecently I looked inside a SNES controller and it has two little IC's that take one bit of input from each of eight lines and outputs them on a line.…
... that take one bit of input from each of eight lines ... I need a crystal to output the state of each switch ...Help me understand ZX RGB signal (long)This will be a long post so please bear with me and most importantly help me. I have a 128K+ and +2A that I'm trying to get working with my 15kHz RG…
... composite signal to sync RGB input? Or is it that some ... using it with 15kHz RGB output from my Amiga 1200 computer ...logical operators and the calculator stackI was wondering if there was a utility which would provide the list of commands needed for the ROM calculator to evaluate a logical expression. For e…
... which took as input a logical expression and output the calculator commands ...How looks a Spectrum shown in a TFT VGA monitor?Some people has just asked me if a cheap Dealextreme VGA Box is capable of showing a decent picture from a ZX Spectrum. Well, I've just modded one r…
... key Spectrum for composite video output option. To best answer ... to adjust themselves to the input signal.
[img]http ... has many options regarding resolution output (up to 1280x1024), chroma ... , the Altera FPGA does output a highly interlaced picture, ...General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …
... a full screen "formatted" input function. You could accept strings ... was no ability to limit input length etc.
... and Y
[*]Length of input can be restricted
[*] ...
9140 REM i$ =Input Data
9150 REM *---------------------*
Broken keyboard due to broken ULARecalling csmith's thread about dead ULAs, a thread appeared in the Zonadepruebas (Spanish) forum regarding... a dead ULA, but only a partially dead …
... could show that the keyboard input wasn't working, although there ... connector to the buffer's input pins. Then from the buffer ... signals that control the tristate output of the buffer (IORQ, A0 ... tristate buffer plus a 3 input OR gate to decode the ...A little program to set the time...Hi Folks, OK, I have amended the program so you now have four routines/functions you can use in your own programs: TIME: GET - Reads the current va…
... ,MM and SS
TIME: INPUT - Allows a user to enter ... GO SUB 9425: REM TIME: INPUT
140 GO SUB 9225 ...
9010 REM Input : FRAMES
9015 REM Output: HH,MM,SS ...How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…
... on my 48k Spectrum to output composite video as described in ...Two-resistor fix for +3 sound distortionOver at Zonadepruebas, mcleod_ideafix has done a circuit analysis of our favorite distorted sound output: the issue 1 +3 AY chip sound output, and fr…
... with the same input, simulated in Spice, gives this output:
output is no longer distorted - instead it faithfully follows the input signal ... (inverted). The output gives 3V p ...DVI GFX Card to HDMI TVFollowing on from Spiders DVI thread I wonder if anyone could help me out or at least point me in the right direction with this. I have a Gfx card w…
... a Gfx card with DVI output and a 1080p TV with ... to go to the PC input of the TV and the ... near as clear the VGA input - my best explanation would be ... your PC through a SCART input.
So my question ...Gigascreen - programming guideDoes anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BA…
Does anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BASIC) to display them and best practice for timing?2 48K speccys dead..Hey guys! I've got two of our rubbery friends with me that need some help. They've been like this for some time, but I would like to try and fix th…
... seem correct; Aprox. 12V Input and 5V Output.
Also, on ...How to get proper SOUNDHi. This subject appeared in several threads of the Forum. I was even lately spinning some reminiscences about old good times and connecting Spec…
... of course), with EQ, balance, input volume and so on,
input volume and so on).
The output mixed sound ... mention Spectrum Evolutions (the third output appeares: General Sound).
Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... these I created based on input from reading the posts of ... sized character on screen
; input - h-ypos (0-23), l ... of character to plot
; output - none
; notes - no error ...Microvitec 1431 MonitorI've been lucky enough to get my hands on a Microvitec 1431 monitor, the one with a dedicated Spetrum input. This works great on a 48k with the in…
... one with a dedicated Spetrum input.
This works great ... lead into the monitors spectrum input, which I think will be ... input as well, can this be used with the 128 monitor output ... ? Will it be possible to get Bright using this input ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... information about emulation of input (keyboard/joystick) and output (screen)? Which asm ..."FlikerFixer" for Spectrum? (GigaScreen)Hi. Yeeeeeaaaaaaars ago there was some device for Amiga500, called "flicker fixer" that was liquidate flickering on interlace (gigascreen). I was…
... was liquidate flickering on interlace (gigascreen).
I was wondering ...Sinclair QL RGB output to what?My Sinclair QL has TV and RGB output. First will not show full resolution and the latter will only show it (512x256) if connected to a proper monitor…
... QL has TV and RGB output. First will not show full ...Input, Complete Spectrum + MoreDue to the raging success of my last sales thread, where I completely underwhelmed everybody by trying to flog off my Retro Gamer magazines, I though…
... /> I've got:
Input (1-52) excellent condition, no ...ZX Setup QuestionsHi guys! I have been reading around the forums and love what is goin on. Anyways I just got my first ZX Spectrum (16k, rubber keys, boxed and compl…
... A output. I have rigged a jack that fits the voltage input ... odd aerial plug. The video output of the ZX is composite ...
