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General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …
... /> 290 REM
300 POKE P,ATTR (i2,i0): PRINT AT i2 ... -
BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
... /> BIFROSTfillTileAttrL(PX2ROW(px), PY2COL(py), attr) '...and change its color
p=687527&postcount=23"]#23 ... -
BIN2BAS (load BASIC text into emulator) utilityI've nearly finished testing this. It allows a BASIC program to be loaded from a text file in any emulator which has a "load binary" option. I was wo…
... "
24 MOVE "f1" TO "+P": NEW: NEXT a: OPEN #5 ... d
30 LET a=ATTR (b,c): POKE 12345,BIN ... -
pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... .worldofspectrum.org/forums/showpost.php?p=698813&postcount=27"]#27 ... -
Books that you just can't quit.Much as parts of the presentation,writing style infurates me, there is a book I just keep comming back to again and again. Its like the Yang to the …
... CHR$
1049 REM P is pointer to segment which ... 1050 LET S=5: LET P=1: LET R=0: LET ... R(P),C(P); PAPER 7;" "
1170 LET P=P+1: IF P& ... gt;S THEN LET P=1
P)-1 THEN PRINT AT R(P),C(P); PAPER ... R31 OR CS THEN LET P=1
3090 RETURN ... -
Problem With POINT StatementHello everyone this is my first ever post, So firstly i'd like to say hello to everyone and secondly thank you to the admins for such a great site, …
Is this any better? I've used CHR$ for the block graphics as the browser won't print the graphic symbols. I put a border all the way around so that I didn't need a separate check for out of bounds. The GOSUBs weren't helping so they've gone.
[ ... -
Problem With POINT StatementHello everyone this is my first ever post, So firstly i'd like to say hello to everyone and secondly thank you to the admins for such a great site, …
[QUOTE=Battle Bunny;720777]Is this any better? I've used CHR$ for the block graphics as the browser won't print the graphic symbols. I put a border all the way around so that I didn't need a separate check for out of bounds. The GOSUBs weren't helping so ... -
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…
...
ld hl, p_flag ; address p-flag
jp co_change ; immediate ... :
ld hl, attr_t ; address attr-t
cp 8 ; 0 ... so
ld a, (hl) ; attr-t to A
jr ... A
call co_change ; update attr-t
ld a, 7 ... -
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…
...
and d ; attr-t
xor e ... /> pop af ; unstack p-flag
ld ... -
SpecBAS 0.800 Released!Hi folks, it's that time again for another release. I was going to add a few more features, but I have other projects on the go at the moment, and it…
... ,0): PRINT ATTR (0,1): PRINT ATTR (0,2): PRINT ATTR (0,3 ... ): PRINT ATTR (0,4 ... ): PRINT ATTR (0,5 ... ): PRINT ATTR (0,6 ... -
RE: Hex to binary converterHi, Does anyone know of any hex to binary converters or zx graphic programs that convert pictures to binary. I have been looking up sources and fou…
... :
[QUOTE=alienbanana;753162]p.s what does the interleave ... it to "Line" (and Gfx+Attr is selected), after each complete ... -
Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... ://zx-pk.ru/showpost.php?p=598265&postcount=36[/url ... ://zx-pk.ru/showpost.php?p=598290&postcount=40[/url ... , interleaved, i.e. raster, attr, raster, attr), which are saved into a ... and one read of an attr byte per 4 t-states ... -
Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... ://zx-pk.ru/showpost.php?p=598265&postcount=36[/url ... , interleaved, i.e. raster, attr, raster, attr), which are saved into a ... and one read of an attr byte per 4 t-states ... /showthread.php?t=41048&p=659785"]this thread[/URL].
Dock's ZX Maze gameI'm hoping to finish a simple maze game in ZX Spectrum BASIC this week, as part of the Ludumdare Retro challenge. I used to dabble in speccy basic on…
... va=2 THEN
IF ATTR (r,k+j2)=7 AND ... i$=p$(1,s): LET p$(1,s)=p$(1,j): LET p$( ... 1,j)=i$:
NEXT j: LET p ... $(2)=" ": LET p$(3)=p$(2):
REM ... />
285 LET zw=ATTR(r-1,k): PRINT z ...Dock's ZX Maze gameI'm hoping to finish a simple maze game in ZX Spectrum BASIC this week, as part of the Ludumdare Retro challenge. I used to dabble in speccy basic on…
... va=2 THEN
IF ATTR (r,k+j2)=7 AND ... i$=p$(1,s): LET p$(1,s)=p$(1,j): LET p$( ... 1,j)=i$:
NEXT j: LET p ... $(2)=" ": LET p$(3)=p$(2):
REM ... />
285 LET zw=ATTR(r-1,k): PRINT z ...ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
... & Pixel Grids (C & P). I use the Character grids ... grid... You have "C" & "P", but you could add a ... it is in (Pixel&Attr, Pixel_Only, Attr_Only, Off)... This would ...ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
... & Pixel Grids (C & P). I use the Character grids ... grid... You have "C" & "P", but you could add a ... it is in (Pixel&Attr, Pixel_Only, Attr_Only, Off)... This would ...Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
SCREEN$ & ATTR don't do any explicit ... (x/8)+1:
LET p$=b$(PEEK loc+1): LET ... p$(bit)="1": POKE loc,VAL ( ... CHR$ 196+p$):
RETURN
[/code]
Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... can't be read :p
The attr is read every time ... look at the video signal ;pDetecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... can't be read :p
The attr is read every time ... : FLASH 1
10 LET p=(4)+PEEK 23672+(PEEK 23673 ... *255)
20 LET f=p/16
25 LET m ...
[/code]
adjusting p variable by adding a number ...Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…
... /> 290 REM
300 POKE P,ATTR (i2,i0): PRINT AT i2 ...ZX Basic StoryOk so here's another mundane idea. Let's make a story, like the three word story but you are only allow to used the words letters or symbols provided…
... TO VAL$ BEEP AND $PI ATTR INPUT OVER VAL$ ABS THEN ...Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…
... string at address (HL) from attr and
; ascii info ... GET2 LD A,H ; Get ATTR Address from screen address
RET
; Example string with ATTR followed by ascii with hi ... byte
DBLHGTMESS1 defb $CD ; ATTR byte %11001101 defm "This is ...Russian Pascal CompilerHello,<div><br></div><div>Unfortunately I started a discussion (as OutBush) on the Temporary Forum Board not knowing how long it would be until the W…
... )Border(color)Color(attr) - set a current attributes, attr=attribute byteScreenThaw - gradual ...Comp.Sys.Sinclair Crap Games Competition 2017As the creator of the second-least crap game in last year's competition (and the only mug stupid enough to agree to host it this year) I am proud/ash…
... do the equivalent of an ATTR() read, the address to POKE ... stalled:
530 LET a=ATTR (y,x): IF a0 AND ...im looking for a horizontal scroll routinehi, im looking for a horizontal scroll routine. i read somewhere that you can do it with at 'to' statement, somewhere in a print routine. althoug…
... :
LET p=p+1: LET u$(1,p)=SCREEN$ (a ... ,b): LET v$(1,p)=CHR$ ATTR (a,b):
PRINT ... :
LET p=p+1: LET u$(2,p)=SCREEN$ (a ... ,b): LET v$(2,p)=CHR$ ATTR (a,b):
... RESTORE 101: LET da=FN p(23639)+9: POKE da+ ...Hacking the ZX Spectrum 48K ROMHi Guys, I have modded my Speccy with a dual boot ROM loading on first bank the original ZX kernel and on the second bank an enhanced version. I h…
... ]
For the BORDER, P-ATTR and T-ATTR system variables; the flash ...Editorless AGD Now for Spectrum as well as Next/TimexI've updated the editorless version of AGD to 0.3, fixing the Next/Timex CLS routine and adding a Spectrum engine and compiler. For those not alread…
... printed with its paper ATTR and ink ATTR combined so it prints ... again,
Derek.
P.S. MacOS BBEdit users copy ...
