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fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... "proportional font" thread for zx basic and ideas for gui and ... functions - draw_text to draw a string in particular font and measure_text ... -
Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …
... channel
ld de,string ;point de at start of ... text string
ld bc,8 ... ;length of string in bytes
call 8252 ... your speccy though
string defb 22,2,5,65 ... at the end of the basic manual, assemblers let you put ... -
Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... want a clever trick in BASIC? You obviously haven't read ... ]Copying a SCREEN$ in ZX BASIC in 1 second?![/thread]
BASIC as though it was defined as a string, so ... -
Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
A string definition is held as a ... number is held in a BASIC listing. The 0 is the ... -
MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…
... captures the assignment of BASIC variables because it picks ... the uSource whcih monitors for BASIC variables "assemble", "debug", "forth" ... to 'catch' the speech string somewhere. So I would be ... . Any info on the BASIC var assignment monitoring address?
MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…
... ;541507]Any info on the BASIC var assignment monitoring address?[/QUOTE ... every interrupt and buffers any string value changes in upper memory ...numbers to binaryHi everyone, I have looked through the manual and have found nothing. How do you change a number to binary easily? I know you can go binary to decim…
... 11011011. But after that correct string more "0" are connected until ... .
A recursive formula in BASIC needs a full coverage of ...Can anyone see a way to speed up the following line of code?Hi Folks, Been looking at bottle necks in my code using BASin's Profiler and the following line (well the 2nd LET statement) is somewhat slow. [COD…
... in BASIC, which doesn't have any bit manipulation functions. String z ... the two numbers into two BASIC numeric variables. That's what ... get a program working in BASIC and then rewrite the slow ... of the data type from string to number and then back ...Can anyone see a way to speed up the following line of code?Hi Folks, Been looking at bottle necks in my code using BASin's Profiler and the following line (well the 2nd LET statement) is somewhat slow. [COD…
... goes for the CODE with string. string arrays are shorter in memory ... then number arrays, but using string arrays with number interpretation would ... a 24 bit number in BASIC?
probably you bake ... where possible compare to a string literal but failing that use ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... , run the program, exit to basic and then run the program ... />
Also be aware that string constants are supposed to be ... I tried to modify a string constant and then found another ... string constant was also changed.
< ...Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
... have found in them the string "ZX COMPILER V2.0 1983 ... /> I don't remember which basic compiler used dinamic in its ...machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…
... /> ORG $5B00
LD HL,BASIC
LD (23641),HL ;E_LINE ... of code above, replacing the BASIC string with whatever is suitable for ... /> ORG $5B00
LD HL,BASIC
LD (23641),HL ;E_LINE ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... ]It can be used from BASIC, err, well, if you know ... returning A in BC) in string B$. The FOR...NEXT loop ...saving arraysHi. So i'm working on a small program. I'm almost finished, but i just hit a problem by the end. I would like to save (and load back later) four arra…
... a string ($) array.
It's in the Spectrum BASIC manual ...
SAVE string DATA arrayname()
String is the name ... about the separate roles of string and array name. If ...
You can save character (string) arrays in exactly the same ...checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... manipulation is very slow in basic but very fast in assembler ... be converted into a binary string and the routine at u ... the last character of the string "0000000000000000" inside the DEF FN ... m/c routine within the string a$ and find its starting ...checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... m/code into a BASIC program could be generalised ... being entered into a string which expanded by one ... would put the assembled string at the start of ... />
The m/code string would need to be itself ... up VARS so that the string is protected (and invisible) ...checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... incorporating m/code into a BASIC program could be generalised and ... mind is having the "2A0B5C......" string in the DEF FN stmt ...checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... room directly as a constant string (with side-effect). Anyway your ... of m/code inside a string is just a funny exercise ... a byte-file separate from basic program.
_M.checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... of m/code inside a string is just a funny exercise ... a byte-file separate from basic program.[/QUOTE] It took me ...INSTR function...Hi Folks, Another little program that people might find useful: [CODE]100 DIM i(4) 110 LET a$="This is some sample text" 120 LET b$="text" 130 GO S…
... not found or if either string is null or if o ... the perhaps little known ZX BASIC fact that the function w ... ) but returns a convenient null string instead.
The expression ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... wants to use it from BASIC
ret
; --------------------------------------------------
;
; prints a string which is terminated with $ff ... /> cp 255 ; end of the string
ret z ; so exit ...Display half a screenWorking in 128 Basic and saving screens to memory via - SAVE! "image" SCREEN$ . Is it possible to display just the top half (or the bottom half) of t…
... 3rd (middle) 1/6th. The BASIC is just to show that ... file as a string variable and then using string slicing to select ...FN nesting error?While playing with FN functions that call assembly, I've found something weird. Check out this code: [code]10 DEF FN f(a,b)=a+b 20 PRINT FN f(FN f(…
... snapshot with patched ROM and BASIC test code[/url]
string '$' - '$' )
CALL Z,L28AB ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... wants to use it from BASIC
;ei
ld (keyretval ... : print_message
;
; prints a string which is terminated with $ff ... /> cp 255 ; end of the string
ret z ; so exit ...Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…
... /> call 5633
ld de,string ;instructions
ld bc,theendofthestring ... -string
call 8252
;
...
ret ;back to BASIC!
;
string defb 22,0,0 ...PFlagsIs there an explantion somewhere of what bits mean what in the printing flags? 1 23658 FLAGS2 More flags. 1 23693 ATTR P Permanent current col…
... =1]4 - Unused by 48K BASIC.[/SIZE]
[SIZE=1]5 ... - Set if handling a simple string.[/SIZE]
[SIZE=1]1 ...What was the best Designed Speccy???So what does the World Of Spectrum think the best Designed Spectrum was? [URL=http://imageshack.us/photo/my-images/845/thespectrums.jpg/][IMG]http:…
... :)
128k BASIC didn't use the tokens, so they weren ... want to jump to 48k BASIC (and USR 0 from 128k ... BASIC was an undocumented "feature") was ... 48k-only games, and the tokens needed for that [i]were ...
