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Tr-Dos questionI hope that people who know Tr-Dos also read these forums :) Let's suppose that I have a .trd disk with an executable file. I want to make this fil…
... /> begin dw 0,length-4 ;; line number, line length
db #F7 ... /> db #0D ;; end of line (no next line)
runusr res 4 ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... each expression on the command line and put them on the ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... each expression on the command line and put them on the ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... /> begin dw 0,length-4 ;; line number, line length
db #F7 ... /> db #0D ;; end of line (no next line)
runusr res 4 ... -
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... for your 20-byte line, so it only requires ... code]REPT 160, line
ld sp,data + line*20
pop ... ,16384 + (line/64)*2048 + ((line/8)%8)*32 + (line%8)*256 + ... this is for dumping a line, but you have to ... for POPs, for the next line and you have to ... -
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... , this is for dumping a line, but you have to actualize ... and for POPs, for the next line and you have to calculate ... ?[/quote]
The 'REPT 160' line is a Pasmo macro to ... SP values calculated for each line. The output code is about ... -
Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …
... /> call p_char
inc ix ;next ascii in string
inc ... e ;next column along, only works within ... /> inc hl ;next graphic byte
inc d ;next line down
djnz ... -
joining lines of BASICDue to overwhelming demand - well, one demand - well, more of a suggestion, really - here's a routine to join together lines of BASIC. The vertical c…
... SymShift-W) to split a line; the cursor must be placed ... will also happen if the next line number in sequence is already ... a spare line number available before the next actual line number, and ... when there's no next line the ... -
IF....AND......THEN statementsSorry...more questions Now initially I thought this should work....but now thinking about it it is doomed to fail as if the player's x co ordinate a…
... it'd trot to the next line to see if anything there ... -
New software screenmode: aSmpI was planning to release this tool at Forever XIII, but they didn't accept it, this is my 30th year activity, my most ambitious work on zx spectrum …
... are not in the same line. Our hardware limit is 18 ... applies to single raster line. in the next line, you can move this ... -
countdown timer ?just curious if there was a pre-made one about that I could use to count down from 999 to 0. in MC / under interrupt, that returns to basic? but how…
... 23622+1 just gives the next line number, so that will work ... regardless of which line it's on; an explicit ... line number could also be used ... -
Keyboard problem...Hi Folks, I have hit a problem in MRT and I cannot see how to get around it. Please allow me to explain. I have a list of items from which one can…
Keyboard problem...Hi Folks, I have hit a problem in MRT and I cannot see how to get around it. Please allow me to explain. I have a list of items from which one can…
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... very top and draws down line by line. The computers interrupt is ... value is checked for each line of the screen draw, ... it draws the line but before checking the next line down, hence 2 ... colours per line and beautiful ...The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... gets round to drawing the next line, it's being fed yellow ... its pixel data from memory line-by-line, and fetches the colour ... makes its next pass for the next line, it reads the next row of ... copying in the colour data line-by-line. That leaves you with ...Screen2StringFurther to writing that BASIC one-liner to redirect CAT to a string I thought that I'd do a general redirection routine for anything which normally p…
... tape and continue with the next line in the program. I've ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... always exactly 7 loops per line of screen I want to ... address of the next line. And clearly the last line points back to ... copying next lines using the last word you POP from each line ... as the address of the next line. That way ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... the start of the next line, like you would get ... LDIs in your unrolled line copy routine as padding. ... with LDIs again, ready for next time.
... move to the next line. The next screen line address (in DE ... the address of the next entry (including a wrap ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... everything on a character basis, line by line (as in, 8 pixel ... ).
1. Fill a line of new attributes (actual attributes ... new pixel data for that line, on a character basis. If ... . Let's go for the next line (if any are left).
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
er, just doubling the frequency of the horizontal sync pulses is no good that would just put the second half of the line on the next line down :-oHarlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... 32 would get you to next line and shifting 5 times left ... to random line.
2) In addition ...Moving a line down the display in assembler?...It's not a "[I]how can I do it[/I]" question, it's more a "am I missing something in trying to do it a new way" kinda question. What I've been doing…
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
[QUOTE=tstih;630116]1) Linear backbuffer. This means each drawing routine could be much faster since adding 32 would get you to next line and shifting 5 times left to random line.
[/QUOTE]
why people think that linear buffer is faster ?FOR 1 TO 0 - Execute "no times"?I checked a couple of basic variations, and generally a for loop executes at least once, even if you create a negative loop without step -1. But in s…
... will hold the line number of that NEXT statement; otherwise, ... to find the current line, rather than explicitly stating ... a NEXT search, so NEWPPC would then hold the line ... number of the DEF FN not the NEXT.< ... any GO TOs to the NEXT line, as GO TO also ...dungeon crawlerHi. I'm toying with idea of making simple dungeon crawler in spectrum basic and i actually got first version working somehow. [IMG]http://watashi.ic.…
... ,y; to get to the next line.
Or of course ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... loading register values for the next line.
[QUOTE=Gedlion ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... , to copy up a line in segments and avoid running ... buffer.
One line takes 224T, but if you ... from the start of one line, start filling in behind ... until the end of the next line, that's 224+128 = ... reaches the end of the line. The problem is the ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... 65535
;the next byte from 65535 is byte ... br /> ;----------------------
;go to next line
LD A,36 ... /> LD HL,(CurrentLineStart) ;next line screen address
ADD ... /> LD HL,(CurrentLineAttrs) ;next buffer data
ADD HL ...
