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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…
Spectrum system variables (I mean 48KB model) are ... to Basic? Can I overwrite system variables area with my data?
system variables somehow.
If I ... -
System variablesIs there a list of system variables anywhere I can use? Like 23658 poked changes caps lock etc. What address do I poke to change paper, border and …
Is there a list of system variables anywhere I can use?
Like 23658 poked changes caps lock etc.
What address do I poke to change paper, border and ink? -
128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…
... ,23552 ; start address of system variables
ld de,4000< ... if one tries this from 128 BASIC, it all falls ... statement placed into the system vars to a total ... BASIC as code from the 128 BASIC interpreter does work; ... if there's a 128 BASIC-compatible way of ... -
BASin Release 6 available for DownloadHi all - It's another cut'n'paste from CSS :) I've been tapping away again, and seeing as a couple of people have recently seen BASin's latest bits…
... code, examine and edit your variables at runtime, add watches ... entered (up to the last 128 of them).
Added ... full hex editor.
Added System variables viewer/editor
Added ... .499999999999)
Added the Variables editor. I did say "eventually ... -
Emulator for viewing variables dataI am looking for a windows emulator, this emulator can view variables data used in game (tap,sna,z80...). It knew edit variables data. I dont remembe…
... emulator, this emulator can view variables data used in game (tap ... ,sna,z80...). It knew edit variables data. I dont remember its ... like View debug with items - variables, system variables, breakpoints, memory map, watches...but ... -
I forgot which system variable I need...... to prevent the message 'start tape, then press any key'. I saw the system variables list but it's not helping. I know I used one poke to bypass t…
... to prevent the message 'start tape, then press any key'. I saw the system variables list but it's not helping. I know I used one poke to bypass the messagem but I can't find it. :( -
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 ... is set to 0xbfff
system variables start at 0x4000
just ... . On the other hand, the system variables have moved so it's ... -
More RAM for BASIC (ZXSE required)Ok, here it is: [url]https://dl.dropbox.com/u/15659782/48KBASICSE.zip[/url] Use it as an IF2 ROM with a ZX Spectrum SE. It's a version of the 80x2…
... . However, anything that expects the system variables to be in their normal ... would work on the standard 128 if anyone is interested. -
JHCon 2014Hello, not sure if this is the right category but JHCon 2014 will take place[B] from 28. to 30.11.[/B] at usual place - gymnasium in Jindrichuv Hrad…
... it for a firm Spectrum 128/+2
--- add a proper ... POKEs to call system routines in ROM or set system variables are allowed ... -
Fighting Warrior's protection systemThis is one of those bizarre cases where cracking the loading system is orders of magnitude more fun than playing the game. (Indeed, discovering I wa…
... cases where cracking the loading system is orders of magnitude more ... to get into. The loading system, however, is a real treat ... the BASIC overwrites all the system variables, sets up ERR_SP to point ... -
Reading the keyboardDoes anyone have a code sample to read the keyboard in machine code ?
... modes and fool with the system variables. Here's an alternative that ... , T
defb 7,0,128,129,8 ; 1, 2, 3 ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... ) with 0 (see the system variables section below).
This system variable contains various flags controlling ... the Basic system and generally should ... respectively. POKEing this system variable will affect the ... -
What should I get??I want to add a Spectrum to my collection but having come from the Atari/Commodore/TI/Apple world, I am a little unsure what to get? Something that …
I've owned a 48, +,128, +2 and +3, and whilst ... a +2 with a Multiface 128 and a +D disc ... directly pokes the +D's system variables).
If I ... on the finger than the 128's. True, it has ... on building your own +D system? If you're technically minded ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... 48K looked great, unlike the 128. The 48K looked unique, ... powerful and futuristic, whereas the 128 looked cheap and generic. And ... liked the single key input system of the 48K), you couldn ... the system variables in BASIC, but they could have set the 128 to ... -
Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …
... regular ram with all the system variables and with a lenght long ... need to do lots of 128 paging to save the correct ... , the program counter (PC) and variables will be intact when loaded ... -
48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…
... mode) in both 48 and 128 modes. In fact, it also ... doesn't start properly in 128 mode (via tape loader). It ... which just loads over the system variables.
It would be ... /> You even get incompatibility between 128 machines. I remember my Short ... -
48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…
... code routines as well as system variables. Changing the paging routines will ... famous example, but Short Circuit 128 as I mentioned earlier is ... differences. The Z80 in a 128 machine is slightly quicker than ... .
10) The 128 ROMs changed between each of ... -
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…
... 0xbfff. However, since the system variables are moved down to 0x4000 ... the 128 editor ROM as that ROM expects the system variables to ... buffer to store additional system variables and uses RAM page ... overwrite the screen). The 128 editor ROM could be patched ... -
Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…
... away. Typing USR 0 in 128 BASIC evaluates the function and ... without disabling any of the 128 paging (which is what happens ... they are not available in 128 mode is that bank 7 ... this by setting all the system variables to the desired values and ... -
updated Fatware - keyboard patchHi! I work with Fatware code and already prepare keyboard patch for original version 0.12. Now it's possible to operate disk browser with keys: 1) c…
... to 8192-16383 rewrite FATWARE system variables and ZX crash....
- fix FATWARE for work with 128 basic (ROM 0 - 128editor) -
Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
... will still work on 128 models in 48 mode ... br /> ; -----------------------------------------------------------------------------
; ROM ROUTINES, SYSTEM VARIABLES and CONSTANTS
pr_all ... ld sp,colour_map+(16*pixel_row)+(128*char_row) ; set the ... -
Help loading OPUS data block ?Hi folks, A while back I obtained a Daton Software Card Games compilation which will be in the next Vault update: http://www.worldofspectrum.org/inf…
... The POKE ensures
that 128 bytes are read from sector ... 0 has an improper length (128 )
3. Physical sector ... and
overwrite the Spectrums system variables. A 'normal' copy of the ...
an added POKE 23377,128 statement following the CLOSE #INT ... -
Reading from the 128 Serial PortDon't shout at me if this is a silly question. I have Googled extensively, and searched the forums, but I can't find anything discussing what seems t…
... 9 months commenting the Spectrum 128 ROM disassembly, building upon what ... the hardware ports of the 128. The RS232 routines begin ... reading a value from the system variables. The comments in my patched ... have detailed comments in the 128 ROM 0 disassembly but ... -
Old peripherals on the Spectrum +2I have a Wafadrive and an Alphacom 32 (ZX Printer clone), neither of which work in 128 BASIC, but both of which work flawlessly when you run them in …
You can list 128 programs to the ZX/Alphacom ... buffer which contains the new system variables.
However some programs ... -
Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... initialisation due to me moving variables around. 3) Assembler source contained ... constants instead of LSB of system variables. The code should now assemble ... 27080,101
POKE 27081,128[/CODE]
I have given ... -
Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…
... saved from 23552 (start of system variables) to RAMTOP. Restoring this will ... will have either lost the system variables or the machine & ... />
* POKE ADDR+LEN,128 (the "end of VARS" marker ... your program, minus any variables that might have been saved ... -
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... RAMT" is the last system variable at location 23732. ... boot the image avoiding the system variables and BASIC area.
... boot a game. The system varaibles for a 48K ... enough space of say 128 BYTES, it would be ... drive then maybe the system area could be minimised ... -
Faulty Interface 1I bought a 'tested' Interface 1 on ebay the other day. Aside from the previous owner 'cleaning' the contacts with WD40!!! (bad, bad, bad eeurrgh :rol…
... also tried it on my 128 - the menu comes up, i ... can use 128 basic but not 48 basic ... memory for it's own system variables: 41470 - 41412 = 58
Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.
... .
- If you use the 128/+2 syntax the game won ... away the screen and the system variables/printer buffer) is plenty :)
