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128K memory testingDuring a mad half hour I decided to write a little memory tester program in BASIC using the information from the 48K service manual. Now I was wonder…
... to write a little memory tester program in BASIC using the information ... -
Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... : an interpreter of the Spectrum Basic that can run in a ... in RAM. It costs some memory, but that way it can ... -
Printing UDGs in BASICAfter looking a little through Winer Milly's code, it struck me that I might be able to speed up my Cybernoid editor by replacing: FOR a=0 TO 31: PR…
... mode? I am coding the BASIC program in a Text Editor ... (TextMate with a Sinclar Basic plugin).
EDIT:
memory location in a UDG type ... it points to the relevant memory location. I then PRINT CHR ... -
Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…
... makes me wonder: How much memory does a Speccy have, included ... the memory used by the machine itself (for BASIC and such ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... all the counter states into memory locations and fetch them everytime ... used a basic program to load some "graphic" into memory at 35000 ... , get the basic and machine code ... carry flag
ld b,128 ;load "carry" into b
spectrum basic documentationhi. once, i programmed in spectrum basic, yet, i forgot almost everything already. is there a downloadable text which would help me to refresh my the…
hi.
once, i programmed in spectrum basic, yet, i forgot almost everything already. is there a downloadable text which would help me to refresh my the syntax in my memory?
TIAHalloween Special!Like all the best zombies, the ZXSpin project rises again on the last day of October. Here's release 0.666 for your enjoyment - get it at [url]http…
... - allows you to view a memory bank relative to
a ... 128 to be paged in and out.
- Fixed TRDOS paging ...How could you hear if loading BASIC or MC?When loading a Spectrum program from tape you could usually hear from the sound if it is a BASIC or is some machine code program *. My question is, w…
... if it is a BASIC or is some machine ... differens?
In BASIC I assume that the keyword ... PRINT) was represented in memory by some kind of ascii ... so should not a Basic program in memory (and to tape) ... hard and tight, and BASIC more light and open. ...It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... on my through port from paging their ROMs in at the ... of interpreting the line of BASIC at CH_ADD. As a ... that's normally illegal in BASIC into a program.
< ... of the Spectrum ROM's memory map as a jump ... can find a location in memory which no one *ever* ...ZX 128 compatibility for SAM COUPEI develope new internal interface for SAM COUPE. This interface contain RTC compatible with original SAM BUS and MB02+, battery backed SRAM 512kB, 51…
... />
Extra features:
MB02 memory emulation
ZX128/Pentagon 512 ... compatibility (same memory layout and videoram switching)
128 compatibility)
connector for connect ...Probing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…
... c routine to read some BASIC variables. So, before I ... how variables are stored in memory.
So ... to work properly in 128K BASIC? (Again I'm ... JR Z,STRINGARRAY
SUB 128
LD DE,19
LASTCHAR
SUB 128
JUMP
LD ...Emulators on the ZX SpectrumHaving released a Spectrum 16K emulator for Spectrum 48/128 machines as part of CCG2008, I was wondering if anybody knows of any emulators which actu…
... emulator for Spectrum 48/128 machines as part of ... language such as the NASCOM BASIC emulator (from nascomhomepage.com) ... or JGH's BBC BASIC emulator (from mdfs.net) ... if it could run ZX81 BASIC. I hope to release ... me to test the memory and I/O mapping ...Beta BasicWhilst testing my 16K Speccy emulator for CCG2008, I wanted to load Beta Basic. I know v1.0 supported 16K models, but the TAP file online only contai…
... , I wanted to load Beta Basic. I know v1.0 supported ... also says BB was 48/128 only, but I can assure ...Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…
... , select Edit -> Fill Memory Block. Apart from the fact ... replace the first BASIC program with the second BASIC program. So ... 1 peripheral is ticked. Enter 128 basic and try typing in " ... Multiface peripheral is ticked. Enter 128 basic and generate a NMI. No ...Looking for an extended BASIC graphics routine from mid- to late-80sHello all, This is my first post here so please go easy. This is basically a cut-and-paste job from comp.sys.sinclair where I've had no luck with an…
... have a more extended collective memory, so here goes.
BASIC program that makes use of ... ' commands from a typed-in BASIC extender program. Alas the machine ... one I'm after. Most BASIC command additions used * or . before ...RAM paging and port usageDear users and developers, I'm just trying to find some detail information about RAM paging on the Spectrum 128 and later models, especially those a…
... detail information about RAM paging on the Spectrum 128 and later models ... , TC2068, TS2068
No RAM paging, but always fixed 48k RAM ... :
In addition to the paging methods of the Spectrum 128k ... select the RAM bank for paging at address C000..FFFF.
DivIDE emulation on MB02+This is FATWARE system originally writed for DivIDE interface, but new ported to MB02+ interface. This use 8kB+8kB paging emulation in 16kB allram mo…
... +8kB paging emulation in 16kB allram mode. TAP file contain basic installator ... ). MB FATWARE use three 16kB memory pages (patched ZX rom, patched ...alternate BASIC ROMI've come up with a few patches to the standard ROM to make it use the 128 shadow screen by default. The ROM is reorganised as follows: RAMTOP is se…
... to make it use the 128 shadow screen by default. The ... under 32K is available for BASIC
the shadow screen is ... almost a full 48K for BASIC programs. On the other hand ...New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…
... really useful in (re-)learning BASIC, so I've decided to ... ,8,119,34,132,128,42,132,128,62,56,119,251 ... ,1,45,243,34,132,128,17,32,0,237,82 ... improvements, optimizations for speed or memory, add-ons etc most welcome ...So you want to make a cardgame......but you haven't got a good deck to display. Well here is a fully relocatable routine that will do the job for you. Place the code anywhere in me…
... Place the code anywhere in memory where you can and make ... charset
RET ; back to BASIC
prat LD ... ,255
DEFB 255,128,146,191,191,158,140 ...Machine code and Basic system variablesSpectrum system variables (I mean 48KB model) are essential for Basic. But what if I started my machine code program and it's never going to return t…
... 48KB model) are essential for Basic. But what if I started ... never going to return to Basic? Can I overwrite system variables ... command, can I use this memory safely?
And what ... , can I still use this memory?Jumping to BASIC after importing 23296,1703Sorry for the confusing title. :-D Now that I've learned how to stop a game from starting after loading (in Fuse and Specemu), I have a few more que…
... to safely "jump" to my BASIC program. :)
I ... the same as returning to BASIC after an USR command ... import it to the screen memory or even store it ... I'm using the old BASIC editor.
"Why ... the subject of jumping to BASIC, I find it curious ...Utility to read/write to memory cards formatted for +3EThis post comes from [url=http://www.worldofspectrum.org/forums/showthread.php?t=25658]this thread[/url]. I've released a small command-line utility…
... partition. It does not modify BASIC loaders in any way, so ... is responsible for customizing the BASIC loader to properly load the ... GUI for handling +3E formatted memory cards without having to deal ... added upon writting to the memory card /image disk.
- ...Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…
... memory for ZX (clones) ? I see only Z80 fileformat with 48/128 ... ? SNA 128 is easy format, but support only 128kB memory and not ... can detect ZX type+memory size(ZX48/128, Pentagon 256/512/1024 ... one file with length = zx memory size(uncompressed raw) + additional ...WAV to TAPI'm having huge troubles trying to convert a program from a real tape to TAP virtual tape. I have tried several utilities and nothing works. I have p…
... of creating standard TAP with BASIC and machine CODE blocks just ... program loaded into emulator's memory (TF Copy) and now how ... (1,0)
lenght program basic/not used for 'bytes-array ... /> lenght program basic/not used for 'bytes-array': 32768 (0,128)
Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
... problem with one of the memory chips used for the extended ... 128K memory. I've tested the first 48K in BASIC by ... way to determine if the memory is at fault, and which ...Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... z80, I never went beyond BASIC until the emulation era. With ... Unfortunately I'm used to memory management to be transparent to ... do to avoid or minimize memory conflicts like that?
< ... 128k music to maximize available memory and avoid crashes' tutorial, ...Sinclair ZXC3 FLASH ROM CartridgeI recently received mail about the new ZXC3 PCB which provides the unique ability to program it directly from the Spectrum without the need for an EP…
... the Interface 1 or Spectrum 128.
The Windows ... All the standard Interface 1 BASIC commands can be used to ... extends upon the software controlled paging mechanism pioneered by the ... Spectrum +/128/+2 is pressed and so resets the paging mechanism of ...Vector font in BASiCHi guys) Some fifteen years ago I saw a quite short BASIC prog that could simulate a vector font with size/ thickness/ italicization params. I remem…
... I saw a quite short BASIC prog that could simulate a ... a'la vector font in BASiC.
I've got ... : LET a$="E": LET y=128: LET x=240: GO SUB ... /> 1440 PRINT "THEN, WRITE YOUR BASIC LINES TO"
1450 PRINT ...
