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From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…
... - A zone of RAM with 160 bytes corresponding to ... that stores the v$ dim RAM position.
... /> - I make a bucle from 0 to 159 bytes for ... If this byte readed from RAMPEEK v$ dir RAM...
[INDENT]POKE ... converts/make my v$ string "video buffer" for ... -
How the spectrum generates the video from ramHi everyon, I know that most people here allready know this but i think i found out how the spectrum acctually dispalys stuff and why the LD x, (HL)…
... assign the first K of ram to video memory and the ... while the z80 is reading from that chip the PIC cant ... has its lower 16K separated from the higher order memory, THATS ... ram (> 16K) the ULA (or PIC in my case) reads from ... -
quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... address (if referencing free RAM). Any string names can be used ... 40: REM find FN q() from DATADD
33 ... REM TO COPY string to RAM or RAM to string or RAM to RAM
GO ... location if in RAM;
b$=source string expression, or source ... -
Creating a POK from RAM or binary.Don't know if this is the right category or not but here goes. I'm working on a bug fix for a game, it's a few hundred bytes worth of custom code …
... of creating said file from a set RAM location or a binary ... -
Copy interface ROM content to RamHi all, I have a very rare logitec centronics and disc interface. To save its ROM content I would like to copy it Ram and store it somewhere. How ca…
... would like to copy it Ram and store it somewhere. How ... MC routine to copy from Ram area to Ram area could be sure ... -
Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... ; pair.
;; RAM-FILL
L11DC: LD (HL ... JR Z,L11EF ; forward to RAM-DONE if faulty.
< ... />
[CODE]
;; ram-check
EX DE,HL ...
;; RAM-FILL
L11DA: LD (HL ... -
Ram test / diagnostic software for 128k?I need a ram test program urgently (as I have to bring this machine into the party place tomorrow) yet I couldn't find any in infoseek by typing "ram…
I need a ram test program urgently (as I ... any in infoseek by typing "ram test" :) And most of the ... .
Are there any ram test suite which runs from RAM? -
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... statement:
"(ASCII string in RAM from any address)."
To ... to put the output string ANYWHERE in RAM. Doesn't this mean ... -
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... statement:
"(ASCII string in RAM from any address)."
... to put the output string ANYWHERE in RAM. Doesn't this ... into ordinary ASCII string containing decimal number (from
000 ... end of the string because whole RAM will be filled ... -
Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
The destination string doesn't need to be ... from string to RAM or RAM to string or RAM to RAM. (It also works with string to string ... -
Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... technique to copy strings to/from free RAM or copy chunks of ... code. It doesn't handle string/RAM slicing, as that would ... some other method.) Any string names (apart from m$, which is used ... REM TO COPY string to RAM or RAM to string or RAM to RAM
LET ... -
Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... of FN m$() which handles string slicing in both destination & ... -
stuck on recursive functionI want this function to PEEK 'l' bytes from memory starting at 's' and return them as a string, but however much I fiddle about with quoting and pare…
... function returns a single character from RAM each time it's executed ... />
As it's a string function, VAL$ needs to be ... evaluate as ""; ie. a null string.
For the looping ... calculated before VAL$ sees the string. Thus for the function call ... -
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…
... compiled a GDB-Z80 from someones git and it ... stub code could execute in RAM.
So I ... /at least/ implement the RAM debugging stub using HALT to ... You'll be receiving from the FIFO that the IF1 ... cat. Try grabbing a string from the serial port in the ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... />
When a string is being constructed from smaller strings or characters ... the new value from WORKSP to the new string in VARS, and ... then reclaims the old string from VARS. All those stages in ... 10 (again) bytes of free RAM (plus the 80 bytes overhead ... -
fragged spectrum +I know I only bought it a few days ago. short version : I damaged it via a wonky RAM joystick box, suffering from ram pack wobble .. no sinclair mes…
... it via a wonky RAM joystick box, suffering from ram pack wobble .. no ... mixed results... there is a RAM jostick interface plugged in also ... messages like in loading about "RAM top" but this was for ... -
Defenda (Interstella) makes resetDefenda from Interstella makes a reset if I take No. 1 Kempston joystick. My jockstick interface is from Ram Electronics (Fleet) Ltd. Joystick is a C…
Defenda from Interstella makes a reset if ... joystick. My jockstick interface is from Ram Electronics (Fleet) Ltd. Joystick is ... -
HALT: Why always 4ts?Instruction breakdown of halt is like that: PC 4ts. That means it fetches instruction byte from ram which tooks 4 ts and then does nothing and read…
... means it fetches instruction byte from ram which tooks 4 ts and ... does nothing and reads the ram again to do nothing again ... it tries to read the ram again? if it's not ... reading the ram again and again to execute ... -
Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…
... 260 LET x$="": REM The string for channel one/uno, defined ... LET y$="": REM The string for channel 2 or Dos ... z$="": REM Channel 3 string, starts out as empty.< ... L$="": REM The L String is length, a routine ... This is the music string for playback of channel one ... -
ZX Spectrum 48k issuesHi all! A couple of days ago I bought my first 48k Speccy off ebay (I already own a beautiful QL expanded with QubIDE interface and 640k ram). It was…
... ) and the socketed upper ram, fully recapped it, added ... strange issues (at least from my newbie point of ... I read 3.25 ohm from 0v to pin 1 ... I "scoped" the clk line from the ULA (6c001e-7) ... reports faulty reads from ram (removing the upper ram does not resolve ... -
Was there an Emulator featuring RamTurbo Interface?IIRC, there was one Emulator which offers an Joystick Interface Hardware Option as "RamTurbo Interface" from Ram Electronics Ltd (UK) [url="https://w…
... Hardware Option as "RamTurbo Interface" from Ram Electronics Ltd (UK) [url="https ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... br />
RAM is accessed in 64kb blocks, from RAM00 to RAMFF ... - select which 64k block of RAM from the 4mb chips is used ... would basically 'slide' in from the top of memory, with ... AY routines for playing samples from RAM.
Software channel balancing ... -
My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…
The +3s has nothing to do with the trick I described. It works because the picture is interlaced. You will see half of the picture from ram bank 5 and half from ram bank 7.
[ This Message was edited by: Fraser on 2004-05-03 14:24 ] -
Most pointless type-in?I think it was one I saw, probably in Program Pitstop(which mag did that?), to evaluate a string as a full expression, a la the Beeb: spend hours typ…
I once saw a program where someone recalculated a binary string from INPUT to a decimal number since BIN A$ didn't work.
Just use VAL ("BIN " + A$") next time. -
linux*peeks in using linux for the very first time* :) W00T
... and the output was different from your (presumably GCC) generated binary ... . Anyone wanting to conceal a string from a casual view can easily ... -
Maps in progressIf you are working on some map, this thread is just for you! Post here the name of that game for which you are creating a map. Only then we can preve…
Well, this is my map from RAM by Topo Soft:
[url="http://m.1asphost.com/hander/ram/RAM_MAPA.gif"]http://m.1asphost.com/hander/ram/RAM_MAPA.gif[/url] -
udg collision detectionhow do I detect a collision between udgs in basic?
Mayhem Accelerator in actionI've put together the first video of the prototype Mayhem Accelerator running on the Sam Coupe. The video shows the Sam running a ZX Speccy emulator …
[quote]
What size of RAM comes with Mayhem? 1024k?512K ... you expand it with more RAM?
[/quote]
512K ... really used external memory apart from Ram Disk support in MasterDOS, so ...
