World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.117s
<1…16171819202122…34>
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... /ram/srecv115k.s"]Receive a byte at 115.200[/URL]< ... /ram/ssend115k.s"]Send a byte at 115.200[/URL]< ... after reading of even a single byte seems puzzling to me ... The 16550 only has a 16-byte FIFO and if you' ... waiting when reading or sending a byte at this speed. So ...
    zub zub March 2014 Development
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... l,a
    ret
    __endasm;
    }

    void serial_write(byte ... /* iy=sp */
    ld a,2(iy) /* a=byte to send */
    rst ... ;serial.c:32: void serial_write(byte b) __naked {
    70 ; ...
    tstih tstih April 2014 Development
  • Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…

    ... fetches another pixel and attribute byte to render the screen display ... to read, write or excute a byte of program there it has ... fine.

    Although on a 128K, it affects half of ...
    joefish joefish April 2014 Development
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... gate chip. It is not a multiplexer, however the logic ... two pieces of wire and a switch to disable the ... to see what the first byte of the "upper" 32k of ... this confirms that there is a fault.
    Post the ... per address. So to store a byte (eight bits) you need ...
    1024MAK 1024MAK May 2014 Hardware
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... chip. It is not a multiplexer, however the logic ... to see what the first byte of the "upper" 32k ... confirms that there is a fault.
    Post the ... address. So to store a byte (eight bits) you need ... br /> Well installed a switch. (did not have a real switch so ...
    Brian Brian May 2014 Hardware
  • Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…

    Surely if you're using the last 3 bits of the X-value to set the bit in a byte then aren't you counting them in reverse order to how they appear on the screen?
    joefish joefish May 2014 Development
  • displaying all memory activity in a screenDunno why I keep thinking about this, but here goes Is it easy enough to add a screen to an emulator that shows every memory address' activity.... …

    ... need to pass is a word and a byte whenever a write has been ... the bitmap to put the byte (well 8 pixels..). I haven ...
    polomint polomint June 2014 Emulators
  • So shooting 360 degrees?...[I]How do I go about having - for example - a cannon in the middle of the screen, that can shoot in any direction towards the player?[/I] Well, I do…

    ... I]I can think of a couple of ways of ... and cos, but that seems a biiit long-winded and overkill ... m kinda hoping someone has a more fast and efficient way ... is Bresenham.

    With a bit of math you only ... addition/subtraction. So it is a byte size table.
    tstih tstih June 2014 Development
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... serial behaves not as a DTE (Data Terminal Equipment ... e.g.
    a computer) but as a DCE (Data Communications ... Equipment, e.g. a modem)

    If ... if1_ula.count_in++; /* Ok, if read a byte, we begin */
    }
    ...
    tstih tstih June 2014 Development
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... (every time you read a byte...)
    ld a,#CTS_OFF ; xxx0xxxx (set ... /> /* input and output buffers */
    byte rs232_ibuff[RS232_IBUFF_SIZE];
    word rs232_ib_beg ... **argv)
    {
    byte *vmem=(byte *)16384;
    byte b;

    while ...
    tstih tstih June 2014 Development
  • Why are rotozoomers on C=64 so fast ?Hi, I noticed rotozoomers on C64 are really fast. I'm not the best coder on Speccy but I know my pet I never succeed to do rotozoomer (or rotating ch…

    ... mode 2 but with a Spectrum-style attribute system), ... to stuff data a byte at a time through a couple of ... on a stock C64 a few years back!) but a few ... has exploited it properly for a game... yet. =-)

    a C64 assembler i'd ...
    TMR TMR June 2014 Development
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... just a bit 115.200 bauds). Note that FUSE escapes byte ...
    ld a,c
    ld d,(hl) ; byte to transfer to ... d
    out (RS232_DTA),a ; start bit ... (every time you read a byte...)
    ld a,#CTS_OFF ; xxx0xxxx (cts) < ...
    tstih tstih July 2014 Development
  • Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.

    ... eight times.
    This copies a byte from (HL) to (DE), increments ... (at least in its low byte E) and instead increment its ... high byte D. This is because in ... screen memory, within a character space, each byte is addressed 256 bytes ...
    joefish joefish July 2014 Development
  • Demo of multidirectional scroll 50fpsHello!!! Im working with scrolls, and I want to show you a demo of a posible game. It works at 50fps and can manage about 7 sprites in the screen w…

    ... br /> It's a bit of a trick. Instead of thinking ...
    Vertical scrolling is a lot easier, as you just ... shift left and right by a byte (8 pixels). That means ... of an empty block, a solid block, and two ... they scroll sideways within a 16x16 block then the ...
    joefish joefish July 2014 Development
  • Demo of multidirectional scroll 50fpsHello!!! Im working with scrolls, and I want to show you a demo of a posible game. It works at 50fps and can manage about 7 sprites in the screen w…

    ... joefish;779990]It's a bit of a trick. Instead of ...
    Vertical scrolling is a lot easier, as you just ... shift left and right by a byte (8 pixels). That means ... of an empty block, a solid block, and two ... they scroll sideways within a 16x16 block then the ...
    climacus climacus July 2014 Development
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... read cycles: one to read a byte from bitmap RAM and another ... calculating the pixel address for a character square what you posted ... a,l
    add a,a
    add a,a
    add a,a
    ld l,a ...
    ld a,h ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... data is retrieved from a separate SRAM memory chip[/ ... cycles: one to read a byte from bitmap RAM and another ... and this is fetched via a separate bus. This is ... it makes a lot of sense on a 40 column display ... left by incrementing the high byte. I'm dubious of ...
    Matt_B Matt_B September 2014 Development
  • Help with Assembly - DEFB, etc.Dear all, I'm going through Jnathan Cauldwell's tutorial and find myself scratching my head at part I can't find a decent explanation of anywhere! E…

    Defb puts a byte value directly into ... use it for defining byte variables or sometimes constant ... - i.e. low byte first, high byte second.

    Equ sets the value of a label to a ... that case the $ is a shorthand way of saying ...
    AndyC AndyC September 2014 Development
  • List of POKEs for FuseI've just started using Fuse on my RaspberryPi and it works a treat. The only thing I struggle with is using the Poke Finder. I've tried the search…

    ... my RaspberryPi and it works a treat. The only thing ... :

    1 - Started a game with 6 (for example ... 6.
    3 - Lost a life and then searched for ... Fuse? Or even better a list of pokes/HEX Values ... IIRC JSW shifts a single bit in a byte until it falls ...
    rich_chandler rich_chandler September 2014 Emulators
  • LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…

    ... address may be used as a buffer. I'd put CLEAR ... the next interrupt (Arda put a PAUSE to wait until RAM ... disk routines. Also, there is a byte that changes on this page ...
    Zup Zup October 2014 Development
  • Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…

    ... to read the first, lowest, byte, and wait for it to ... .

    So do a HALT, read a byte from 23672, start reading ... counter, and checking for a change in the byte at 23672. Then ... can actually call it one byte higher without breaking anything. Then ...
    joefish joefish November 2014 Development
  • joystick port for output ?just curious regarding the joystick ports on 8 bit machines. I just purchased something on the atari 8 bit.. but included in the box was a atari 8 …

    ... hummed and hahed about a simple data transfer system between ... sort of circuit for buffering a byte of data from one ... two extra synch flags, maybe a 2-bit counter, to ... second is merely used as a slave to render Player ... speeds it'd take a full 50Hz frame just ...
    joefish joefish November 2014 Hardware
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... . ;)

    I would use a byte per character (so 32 x ... it would be a simple job to read each byte and look ...
    bobs bobs December 2014 Development
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    [QUOTE]I would use a byte per character (so 32 x ... main idea here is that a byte represents a single pixel, not 4 ... .

    Yes, that's a waste of some memory but ...
    Ralf Ralf December 2014 Development
  • SkoolKit 4.2SkoolKit 4.2 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into ASM format or into a bunch of …

    ... the destination address after each byte is
    loaded (optional; ... to the destination address before a byte is
    loaded, and ... subtracted after the byte is loaded (optional;
    default ...
    SkoolKid SkoolKid December 2014 Announcements
  • Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …

    ... (16bit addressing)" based machine not a "byte" based one. therefore it can ... because the amiga is not a cray and is actually less ... at doing its "thing" than a c64 hardware scroll and hardware ...
    STE'86 STE'86 December 2014 Games
  • Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …

    ... (16bit addressing)" based machine not a "byte" based one. therefore it can ... /> Here's a bonus video of a version of Uridium a lot of ... the NES. The NES has a maximum sprite size of 8x16 ...
    Muig Muig December 2014 Games
  • Simple text scroller, first character problemin a text scroller, whole line scrolled to the left by 1 pixels using RL(HL) ; DEC L method. But at the rightmost character must be printed immediate…

    Assuming you have a loop that scrolls the current character 8 times and then fetches the next one, you can use its counter value to see which bit of a byte you need to bring in at a given moment.
    Hikaru Hikaru January 2015 Development
<1…16171819202122…34>

Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21

HitBox

Word Docs Hits
flip 1.6K 2K
a 589.5K 1.7M
byte 7.3K 15.2K

Related Threads

  • A Spectrum, a couple of felt tip pens and a lot of free time on Sunday afternoons...In my opinion the best part of having a Spectrum was drawing a game map of the latest Ultimate game in the back page of my geography text book thereb…
  • I NEED A HAND FINDING A 3D CHESS GAME......WITH A HAND IN ITOk.Firstly - It's not one of the chess games in the archive with the word chess in the title.<br /> ##(Although - The ChessMaster2000 LOOKS very fami…
  • HELP!!! i need help turning a .wav files into a .tzx. im a new beginnerhi there. i hope anyone doesnt think im thick or owt but im having trouble in find the right program or the know how to convert all my 8bit mono .wav…
  • Free to a good home - Anyone in South Wales want a pile of Spectrum Games and a +3?Bit of an emergency - I'm moving out in a hurry and I don't have time to sell these!<br /> <br /> Is there anyone in South Wales who wants a fairly b…
  • A clever method of using a single 8-bit register to be used for two things at a timeI don't know if this is the way the SAVE routine in the Spectrum works. Anyway, this is what I've learned today.<br /> <br /> I've been commented the…
  • Sinclair QL: I'm searching for a Gold Card (or better a Super Gold Card) and a Super HermesIf someone here want to sell his Super Gold Card and Super Hemes I'm a big collector of QL stuff and I will pay very very well.<br /> <br /> Very tha…
  • Trying to find a magazine entry for a program I wrote as a child!Hi, <br /> <br /> Back when I was a child I wrote a program called "milkround" that we published in either your spectrum, your sinclair or sinclai…
  • im looking for a basic routine that adds a numerical character to a stringim looking for a basic routine that adds a numerical character to a string. so a=1, "1", then a=0 "10", then a=1 "101......" and so on
  • How to separate a character from a number in a string?Hi <br /> I've been writing a kind of logo type program in BASIC that takes a string a$ from INPUT and then draws according to what you give it. Say…
  • A TZX, a MIA and a previously unknown title from QLSThe Spanish website [url="http://trastero.speccy.org/"]El Trastero del Spectrum[/url] has a TZX of [url="http://www.worldofspectrum.org/infoseekid.cg…

Related Searches

  • byte scan
  • print a char in asm
  • divmmc 3 a
  • testing a microdrive
  • create a batch file screen
  • ebug byte
  • bug byte
  • change a letter
  • parity byte block
  • is there a system test for the spectrum
  • is there a system test tape for the spectrum
  • how to do a tzx file
  • how to create a tzx file
  • how to make a tzx file
  • composite screen goes yellow after a while
  • screen goes yellow after a while
  • validate input is a number
  • how to code a 256 byte aligned look up table
  • how to align a 256 byte look up table
  • align a 256 byte look up table

Copyright © 2024 World of Spectrum