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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? -
Program sizeI am typing a basic program into a ZX and I need to find out exactly how much memory it is using. Is there a way to calculate this? :confused:
... would be
let prog=peek 23635+256*peek 23636 ... prints the difference of the system variables PROG and VARS, pointing to the ... the ZX BASIC manual, the variables follow the program immediately, this ... -
Please help me complete this lil'programI'm editing Basic programs that were saved in Timex TOS discs, and every load command starts with LOAD *"filename". If I want to go through these pr…
... the loop for everything between system variables PROG and VARS which is one ... ) to see how to find PROG and VARS. After the MERGE ... -
Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... /> [CODE]; Labels
; System variables:
PROG equ $5c53 ; Start address of ... Start address of the BASIC variables area
; ROM ... ):
ld de, (PROG) ; PROG - address of the start ... PROG) ; HL = PROG. We set VARS to the start of the variables ... -
.Z80 File Format when exported by SpecEmuI'm trying to parse a .Z80 file generated by SpecEmu but am getting a few discrepancies from [url=http://www.worldofspectrum.org/faq/reference/z80for…
... highlight differences in registers, Screen, System Variables, PROG, VARS, CHANS and Stack as ... -
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 ... -
RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
...
; so look at the system variable PROG
dec hl ; move ... ; done
; --------------
; TEXT VARIABLES
; --------------
;
; Used by ... -
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. :( -
A tidy loader for minigamesThe minigame competition doesn't permit the use of separate loaders like [code]10 LOAD "": RAND USR 32768[/code] The loader must be included in the b…
... ]
It uses two variables: a string variable contains all ... -
A Miscellany of Dangerous TipsHere's a selection of ideas for using some of the more obscure system variables which I've found handy on occasion. They can be very convenient if us…
... of the more obscure system variables which I've found ... or program variables) between the end of PROG and the ... /> Another method of preserving variables is to assign them in ... structured - disposition) then the system variables NEWPPC & NSPPC are available ... -
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 ... -
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 ... -
TLOTRD - compiling problemsOk guys! A new demo for 'The Legend Of The Red Dragon' is nearly finished (just need my bro to draw some artwork as I'm using sample images from the …
... , but have you tried various system variables to stop it from allowing ... pure CODE at the sysvar PROG, perhaps? A slightly longer load ... -
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 …
... .
; -----------------------------------------------------------------------------
; ROM ROUTINES, SYSTEM VARIABLES and CONSTANTS
pr_all ... />
make_chan:
ld hl, (prog) ; a channel must be created ... -
Hacking a adventure gameHello folks, on the recent issue of SCENE+ Diskmagazin is a game called "By right of Birth",you can find this game also on WOS. Although this magaz…
... system variables so you should save it too.
then write small prog ... -
Spectrum machine language filesHopefully this will get moderated to the correct forum, if I'm in the wrong place.. I've failed to get my old 48K Spectrum microdrive files, via the…
... I/F 1 it moves PROG (sys variable at 23635/6 ... also need to update the system variables, which the ROM does for ... -
compressing basicI thought I'd ask here instead of the basic forum.. in the sense of giving me 1 command line, and NOT the whole listing joined up etc. and it uncom…
... Stack Program# [0-18] ";prog: LET prog=INT prog:
IF prog18 THEN ... /> 1001 IF NOT prog THEN LET prog=255
1010 ... bc=USR put:
LET prog=prog AND prog255:
PRINT " ... DE,23552 ;DE=start of system variables
25623 1 0 ... -
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…
... definitive answer by PEEKing the 'PROG' system variable (see [url]http://www ... also have to tinker with system variables so that it knows it ... : block spanning the screen memory, system variables, program data and 'currently executing ... -
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 ... chunk which was originally between PROG and VARS. Then LOAD ... : POKE 23642,hiELINE: SAVE "prog";
where loX and hiX ... LOAD "prog" - and there's your program, minus any variables that ... -
RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
...
; so look at the system variable PROG
dec hl ; move ...
ret
; TEXT VARIABLES
; Used by the 64 ... -
SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... br /> ; so look at the system variable PROG
dec hl ; move ... br /> chans equ 0x5c4f ;
prog equ 0x5c53 ;
udg equ ... ; leap back to the operating system.
push af ;
... bit of space for some variables.
atflg:
defb ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... br /> c_chan:
ld hl, (prog) ; a channel must be created ... /> ; so look at the system variable PROG
dec hl ; move ...
push af ; operating system.
call doit1 ;
... of space for some
; variables.
atflg:
