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handy method for passing m/c parametersI knew that a single number or string parameter could be passed to a m/c routine with either: [b]LET a=b+USR address[/b] puts b on the calculator st…
... $ is just a throw-away variable, as it gets the BC ... use that method for short strings, when the returned value wasn ... -
The Official Crap Games Competition 2013 Thread!Just to announce that the 2013 CGC is OPEN! [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/cgctitle2_zps77591934.jpg[/IMG] And for th…
... hacks like use a string variable and encode row and column ... that arrays of variables (not strings) are 5 bytes per element ... -
Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... as numbers or strings. The variable names can be ... inc hl ;skip over next variable letter
ret
ld de,STRINGS
call FIND
Variable not found
inc ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
...
call sa_v_old_1 ; exclude simple strings
jr z, sa_data_1 ;
variable
ld a, (hl) ; store ... bytes
inc de ; for variable name
inc de ; and ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
[code]; THE SCANNING VARIABLE ROUTINE
org 0x26c9
... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... /> res 6, c ; signal handle strings as numeric
call stk_var ... /> call next_one ; start of next variable
call reclaim_2 ; reclaim existing ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... br /> call look_vars ; variable exists?
; THE 'VARIABLE IN ASSIGNMENT' SUBROUTINE ... system variable
or (hl) ; set bit 0 for simple strings
push af ; stack system variable
call scanning ; evaluate expression ... -
Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... it doesnt need the TICKS variable anymore like you said
// Attach C Variable to Sprite Graphics Declared in ...
You can print strings to the screen on the ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... every reference to a variable (or function) involves a ... numeric arrays and DIMmed strings/arrays. It's of ... no use for simple strings as for them a ... be reclaimed and the variable redeclared at the end ... a FOR...NEXT control variable just use "FOR a ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... that every reference to a variable (or function) involves a sequential ... DIMmed numeric arrays and DIMmed strings/arrays. It's of no ... use for simple strings as for them a LET ... to be reclaimed and the variable redeclared at the end of ... -
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…
... /> [list]
[*]If assigning a slice ( which the demo is doing ... destination parameters to match the slice and use "LET a$=string ... not efficient for copying short strings. It's blindingly efficient for ... -
analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …
... of decreasing frequency. Counts for strings may be in two parts ... the total count for the variable (eg. w$ was accessed by ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... br />
For both strings (0 terminated text) and buffers ... given pixel width. This will slice words.
*_partition_ww = as ... above but will only slice at spaces. No trailing spaces ... will be included in the slice.
For string ... -
Raycasting (3D Games!) with SpecBAS<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Here's one I wrote just recently. I wanted to see …
... height of the closest vertical slice for each pixel column of ... a table of very thin variable-height columns as my display ... -
Bored of the Rings coded messageI was browsing [url="https://tcrf.net/"]The Cutting Room Floor[/url] recently and stumbled upon the entry for [url="https://tcrf.net/Bored_of_the_Rin…
... the encoding might be using variable multiples of 16 as offsets ... skip the more obvious invalid strings.
1 DATA 10: DATA ... -
TommyGun's getting a Debuggerhttp://youtu.be/B_kZVRvYV98 I have always wanted to debug the programs I write in TommyGun using TommyGun instead of the debuggers in emulators. …
... You can easily output a variable 1 (8 bit) or ... 2 bytes (16 bit) variable.
You can also easily ... print out a 2 byte variable
19 bytes ... defined message from the Strings editor (an expensive procedure ... with the debug output strings in it, in a ... -
Leading Zeroes on a Score in BASICI'm trying to print the score with leading zeroes such that it's always 6 characters wide, i.e.: 000010, 000150, 006100 etc. I quickly knocked thi…
... it in the "analysing program variable usage" thread back in ... for all numeric variable types and DIMed strings. Simple strings get re- ... optimised by removing any unused variable declarations and/or program ... the search times for variable data and program lines ... -
Empire - port of trs80 basic programBack when I was a little kid, I had the opportunity to play around with a trs80 model 1 with level 2 basic. One of the games I often played was call…
... ]
Makes Z a string variable, O an integer and leaves ... later on; since MID$ treats strings as being one-indexed. -
Speeding up programs by hacking the SysVarsPositively pleased to properly discover this area of the forum! I have a couple of recent tricks that might be of interest - they're probably old hat…
... multiple copies of the same variable name?[/quote]
The ... comes to mind is simple strings, which are always re-allocated ... be stopped by assigning all strings with DIM, but that might ... -
POKE taking a variable amount of time...Hi Folks, Does anyone know why the following POKE statements seem to vary in their execution time? [code]100 POKE 60000,10 110 POKE 60001,16…
... /> [/quote]
The system variable DEFADD points to the parameters ... and +65535 (the format for strings and real numbers is different ... /> LD IX,($5C0B) ; DEFADD system variable
LD C,(IX+4 ... -
z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …
... the notes that if the variable is not declared in basic ... fallback is to write the strings to a fixed address in ... -
Need Some Basic HelpHi all, I’ve decided to give programming in Spectrum Basic a go again (bit of nostalgia trip!) and I’m trying to develop a CYOA style game. How…
... suggest either storing all your strings as assembler DEFMs and calling ... the string in SPARE2 system variable at 23728 $5CB0 for example ... -
Okay so can you save text as a data array ?So I was playing with this but I'm obviously not doing this correctly. [code] 10 INPUT "Enter some text: ";a$ 20 PRINT a$ RUN [/code] Now i'm…
... like that will cause your strings to be fixed length though ... Sinclair BASIC doesn't do variable length arrays. -
Okay so can you save text as a data array ?So I was playing with this but I'm obviously not doing this correctly. [code] 10 INPUT "Enter some text: ";a$ 20 PRINT a$ RUN [/code] Now i'm…
... to saving a pure string variable, it's not something Sinclair ... manual about how BASIC stores strings to achieve this, but it ... -
Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…
... preserve the position of the variable i$ in the vars area ... LET i$="..." would put this variable at the end of variables ... I use a single string variable then I don't need ... statements for all the various strings? I can see you are ... -
Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…
... I use a single string variable then I don't need ... statements for all the various strings? I can see you are ... , speeding up the use of strings that are stored at the ...
