-
Screen address of PRINT position...Hi Folks, The following code uses DF CC system variable to extrac the screen address for a PRINT position. [code]100 CLS 110 PRINT AT 10,16;…
... the next character will print if no row/col ... H =010ssppp, ss=segment 0-2, ppp=pixrow 0-7;
;L ... rrr=char.row 0-7, ccccc=char.col 0-31
... 11,16:
segment = 1, pixrow = 0, char.row = 3 ( ...
Try "PRINT AT 11,16;"B"" and then POKE 18544 ... -
Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... :-
Fitting instructions:
1) Remove Discovery case and right ... to the Spectrum edge connector at the front of the Discovery ... /> To enter 48K mode:-
PRINT USR 0
To enter ... After the command OPEN'4;"b" IN if INKEY$'4 is ... -
So where is the random number in the Speccy ?So I am messing around with ZX Spectrum Assembler and I want a random number. I looked up previous posts and one of the links said that random number…
...
49 if you PRINT PEEK 14000[/quote]
... it's in [b]Read O[/b]nly Memory :) That ... numbers are in the ROM at 14000 ?[/quote]
... a (psuedo) random number at 9752, but it probably isn ... floating point number between 0 and 1; and compresses it into ... -
A BEEP program I want to make in Basic. Helpful remarks gratefully receivedI want to explore the possibilities of the BEEP command. So I need to be able to try different combos of pitch/duration and sequences of same. I'm tr…
... , you might want to look at the AY chip of the ... ,
eg: 10 FOR f=0 TO 60: BEEP .005,f ... : BEEP .003,f+1: BEEP .004,f-2: NEXT ... play tunes: eg:
1 REM 244;244 -
how to fix instructions on screenI have a problem with my sequencer. I want the top half of the screen to stay fixed but allow the note values to print without pushing the instructio…
... PRINT "This program lets you enter a sequence of notes one at ... a time then plays them
50 PRINT "How ... INK 1
80 PRINT "Please enter"; b ; "notes"
85 INK 0
b)
120 LET d = .5
160 PRINT "One at a ... -
What causes "The disk has been changed" problem on a +3?I've seen this posted here on this forum and no explanation as to what causes it or any solution that doesn't involve writing a DSK image back to the…
... also shows which instruction is at fault, on each disk the ... : PRINT USR 59046
Side B:
1 BORDER 0: PAPER 0: INK 0: CLEAR ... 32000: LOAD "lcc" CODE: PRINT USR ... -
flash in a stringhi, is it possible to store flash in a string? u can store colours, bright, etc.
... a string with embedded print controls is faster than ... [code]
LET x0=0: LET y0=0
...
LET ... y0+b: LET i=INT(RND*8)
PRINT AT x ... with the
PRINT statements removed gives timings ... for explicit controls and 1.44 for embedded controls. ... -
1987-2017Here we are, with our tradional thread about games released thirty years ago, where we can contemplate how bad they have aged, how bad they [i]alread…
... big fat 0/5
[b]The Colditz Story[/b] - Bad ... 3/5
[b]Flash Gordon[/b] - Pretty thin if you consider ... />
[b]Collision Course[/b] - It might look pretty at first sight ... C. Avoid at all costs. 1/5.
[b]Falcon The ... -
Kempston option spazzing outHi again I have a speccy 48k issue 6a. With it I have a Datel Kepston interface and a konix speedking joystick, all of them in my posession since…
... is on the data bus at the time. This is ... Program[/u][code]
10 PRINT AT 10,10;IN(31);" ";< ... between the double quotes at the end of line ... screen:
0 with no input
1 when held right ... than one function is operated at the same time.
... -
How much can you get into 48k?Todays experiment was to see how long, how much text, a PRINT statement will hold. I filled it up with * and counted them and got 689 chrs. Almost 22…
... ? B integer out of range 30:1
10 LET L=0 ...
20 FOR C=0 ... TO 31 STEP 1
30 PRINT AT L,C;"0"
1
60 IF INKEY$ ="S ... /> I'm over tired, been at the computer since 5am -
How much can you get into 48k?Todays experiment was to see how long, how much text, a PRINT statement will hold. I filled it up with * and counted them and got 689 chrs. Almost 22…
... B integer out of range 30:1
10 LET L=0 ... C=0 TO 31 STEP 1
30 PRINT AT L,C;"0"< ... error B appears, cheking 30:1 (line 30:sentence 1), there ... />
PRINT L says 0, and PRINT C says 32; ... ENTER a few times, then PRINT C.
... -
z88dk terminalsto set up a terminal a bunch of numbers are needed: m4_zx_01_output_fzx(_window_1, 0x2330, 0, 0, 1, 14, 1, 19, 0, _ff_ao_Prefect, 14, 0, 14, 8, 1…
... />
[b]$1 = label attached to FILE or 0 if fd only[/b]
1 to enable cook mode. The terminal will look at ascii ... codes < 32.
bit 6=1 to ... screen colour. You can, eg, print in ink only and leave ... -
Joystick IssuesHi guys, I'm having a few issues getting joysticks to work well on my Spectrum 128k. I've got a Power Play Joystick interface and I've tried it with…
... is on the data bus at the time. This is ... br /> 10 CLS
20 PRINT AT 6,6;IN 31;" ";
at the end of line ... screen:
0 with no input
1 when held right ... than one function is operated at the same time.
... -
Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... Loop n+1 ATTR rows
ld b,a
inc b
; ... =5 TO 15: PRINT AT I,5;"XXXXXXXXXXXXXXXXXXXX": ...
120 PAUSE 0
130 LET ... -
Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... Loop n+1 ATTR rows
ld b,a
inc b
; ... =5 TO 15: PRINT AT I,7;"XXXXXXXXXXXXXXXXXXXX": ...
120 PAUSE 0
130 LET ... -
Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... ld a,(HEIGHT)
ld b,a ; Loop for the Polygon ... 340 PRINT AT I,0;"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL"
350 NEXT I
360 PRINT #1;AT 0,0;"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL ... -
Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... /> 130 REM 17-Sep-2017 : 1.0
140 REM ------------------------------------------
150 ... : LET NS=1
230 REM Erase Cursor at old X,Y ...
250 PAUSE 1: PRINT #S;AT Y,X;B$;#NS;AT NY,NX;C ... LET NX=NX-(NX>0): GO TO 220
340 ... -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... V4.6 start at 35331, for V4.7 at 35339
; ... /> CALL PRINT
PUSH BC
LD B,10 ; 0.25 sec ... br /> MESS_END: DEFM CC_PAPER,0,CC_INK,0,CC_BRIGHT,1,CC_AT,21,20," ",255 ... -
Print vs 23659To be honest I could not think of a better topic title, although its not ideal. Anyway, I do recall reading ages ago that the reason you cannot no…
... only go as far as PRINT AT 22,x. I forget the ... [/i] safer to use [b]PRINT #1; AT 0,x[/b] (or [b]AT 1,x[/b]).
ADDENDUM ... instance). At address $a99, it loads the B register with the ... line number, and at address $aa9 ... -
Alternative to Poke 23659,0 to prevent a 'break in' to a Basic Program.Good morning everyone, My memory fails me these days but in the early days of programming I used to use Poke 23659,0 as a crude way of offering so…
... use PLOT down here and PRINT AT will only work down ... the program:
[b]45 PRINT error[/b]
Oops!!! ... is usually better to use PRINT #1; "text" which works just ... can do a
PRINT #0 ; AT 0,0; "whatever"
or ... -
Loading Images/Screens mid-gameHi all, Looking to get back into a bit of coding and I couldn't figure out a way to do the following: I have an image/SCREEN that I'd like to b…
... r=1 TO 1: NEXT r:
DIM a(8*ro): DIM b ... =1 TO limit
9994 INK k: FOR b=tR TO tZ: PRINT AT b,0 ... ,,: NEXT b:
GO SUB ... 93:
LET k=k+1 AND ... -
Short unattended type-in'sThis follows a similar topic on the BBC/Acorn forum (said topic can be found [url="https://stardot.org.uk/forums/viewtopic.php?f=2&t=14919"]here[/url…
... ): FOR B=1 TO 5: READ C: LET A(B)=C: NEXT B: DATA ... =0 TO 31
150 POKE 23693,A(B): PRINT "\a";: LET B=B+1: IF B ... =6 THEN LET B=1
160 ... C=1
180 LET B=C: NEXT Y
190 PRINT #1;AT 1,7 ... -
Short unattended type-in'sThis follows a similar topic on the BBC/Acorn forum (said topic can be found [url="https://stardot.org.uk/forums/viewtopic.php?f=2&t=14919"]here[/url…
...
[code]
10 BORDER 0: POKE 23693,6: CLS
1: LET y1=0
30 PRINT AT y,x;"\'.";AT y,31 ... -x;"\.'";AT 21-y,x;"\.'";AT ... png[/img]
[b]edit:[/b] "\'." and "\.'" are the graphics ... -
what does the USR command actually stand for?im sure its an acronym, if i remember rightly. ____ sub routine?
... . The machine code can look at BC (or just C), AND ... 1, and so tell if it was called at an odd ... .g. PRINT USR 40000+X where X is 0 or 1 and so ... of pre-set functions or (b) tell it to turn an ... one of the PRINT# streams, so then a PRINT# or LPRINT command ... -
Stuck again! Please help meI'm in the process of making a little game, eventually it will become rather more sophisticated (I hope) but I am testing out routines one at a time.…
...
[b]65 LET oldr = 0,0: LET oldc =0,0;[/b]
Here ... "
30 PRINT
40 PRINT "Press 1 for LEFT, 0 for RIGHT"
85 PRINT AT oldr,oldc;“ ”
90 PRINT AT r, c; "O ... -
Dunny - help!I fired up SpecBAS, it automatically loaded the last program which was ASH2's background for the lander program. I pressed RUN and it ran fine then …
... ,0,1,5,6,0,0,
10,10,0,0,40,3,0,1,10,3,0,1,0,0,4,0 ... ,40,4,4,0,40,8,0,1 ... ,6,0,0,
10,8,0,1,5,255,0,0,0
18 READ a,…
