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Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... is the prototype for the machine code version but the other one ... a PLOT function for screenaddress with y/x-coordinates and a ... -pointer and every line on screen in every loop. -
Problem with pokesI can delete a poke as I entered a game?:-? For example: I entered a poke of infinite time, but for the next level, the timer to reach zero.As I ca…
... changes FIRST using the print peek command from Sinclair ... poke, you could use PRINT PEEK 26778 that would ... to default. So if PRINT PEEK 26778 displayed the ... can only be repoked with the aid of a ... RANDOMIZE USR command runs the machine code, you can't get ... -
How do you work with fonts on speccy?just curious really.. I know c64 workings, and obv. the spec you draw direct to screen.. on 64 , you'd make what would be equivalent to UDG.. and sa…
... what you want to do with fonts. As Ralf pointed out ... characters quite easily using machine code or from BASIC with my new routine ... a really neat piece of code and gives you 32, 36 ... a look at the PFN-PRINT utility in the archive.
Last of my +3 disks and....a Wafadrive! Anyone actually ever use a Wafadrive back in the day? [url]http://shop.ebay.co.uk/millys-pigdog/m.html?_nkw=&_armrs=1&_from=&_ipg=&_t…
... them onto the Wafadrive.
Machine code programs can present more of ... to COPY to Epson printer, print graphics from Basic, a printer ... [/URL] wafa toolkits will deal with transfer back to tape either ...ccompletly baffeled machine codeHi everyone, BEFORE you ask i have not asked help for loads of problems i have recently now encountered and i figured the problems out myself, hones…
... different Machine Code methods of printing to a particular position on the screen (with ... them for finding a particular screen address, amongst other things.compressing basicI thought I'd ask here instead of the basic forum.. in the sense of giving me 1 command line, and NOT the whole listing joined up etc. and it uncom…
Here's the machine code for manipulating the program stack ... screen display & attributes are not saved.
[code ... prog=prog AND prog255:
PRINT "Program#";this;" PUT as #";prog ... bc=USR get
1035 PRINT "This is program ";this< ...SAM programmingHi Can anyone provide any example hello world or graphics/sprite printing style machine code routines for the SAM? I can't seem to find anything rem…
... to ZX mode (zx emulator) with original ZX48 rom in low ... OUT commands. Also access to screen data is very easy from ... memory switching and testing from machine code is not so good for ...SAM programmingHi Can anyone provide any example hello world or graphics/sprite printing style machine code routines for the SAM? I can't seem to find anything rem…
... mode (zx emulator) with original ZX48 rom in ... commands. Also access to screen data is very easy ... switching and testing from machine code is not so good ... for Spectrum familiarity:
[code]lmpr: equ 250
db %10000001[/code]Sorting an array...Hi Folks, Over the weekend I had a play with sorting algorithms - takes me back to my student days! :-o My first try was with the good old Bubble S…
... combined the relevant lines with your timing code for comparison. Mine's ... , so it needed rewriting in machine code before it could be of ... i=1 TO n:
PRINT v$(i);:
NEXT i ... :
PRINT : STOP
90 LET t1 ...How compatibel is the Sprinter 2000?How compatibel is the Sprinter 2000? I have one but only trd software runs. Joystick did not work and tape in and tape out too. I have schematics bu…
... + IN A,(C) in machine code not work. Kempston joystick on ... />
And compatibility with ZX ? Same as russian Pentagon ... ZX mode configurator with possibility change screen timing(Pentagon/Scorpion), ... then can be problem with some demos using uncomplette ...Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…
... . 32768 )
Make this code:
ld hl,32768 ... the right nr where the code starts
ld bc,length ... least the length of the code, more is allowed
ldir ... (23659),a ; allow lower screen
rst 8 ; return with error to undo ...Brand new Horace GameWe could think on how should the next Horace Game be, taking in account that the past three are mixtures of old, well established classic arcade game…
... actually such rare cases work with divIDE (however much slower). ... mostly is used for assembler/machine code loaders that don't use ... file - I assume they work with the divIDE?
---------
... load too fast with the divIDE for the "loading screen" to be ...WTF stupid machine10 LET X = 28672 or 61440 depending on how much memory you have 20 LET A$ = ?? 30 IF A$ = ?? THEN INPUT A$ 40 LET Y = CODE A$ ? 48:IF Y>9 THEN LET Y …
... about 7K for your machine code program. With a 48K machine, you'll have ... IF X>32767 THEN PRINT "No more memory!": STOP
PRINT "No more memory!": STOPSpectrum Keyboard Solutions?Hello, I'm new here and this is my first posting. I started with Sinclair computers back with the ZX81, then when the Spectrum came out I really wa…
...
I started with Sinclair computers back with the ZX81, then when ... can try out those little machine code programs that only work on ... thing I did was to print a helpscreen on stickerpaper and ... The stickers are also protected with stickytape to keep the ink ...variable variable names with VAL$It's possible to make the RH-side variable names in a LET statement be themselves variable by using VAL$. Thus, if v$ holds the [b]name[/b] of anothe…
... how this might be done with a machine code routine, but not in ... variable name, so:
[code]LET this is a variable ...
And:
[code]PRINT this is a variable[/code]
Also works ... Besides, this also works:
[code]PRINT thisisavariable[/code]The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... hardware the machine is a dream to work with...
...
[code]
Z80: ld hl,16384 ; Load with...
screen with sprites. The only limitation ... would normally supply code to initialize the machine. The hardware is ...Vic 20 game better than Speccy version?Years ago, when I had my Vic 20 I had a game called Blitz, it was on the welcome tape in fact. Very simple game, but strangely addictive. For those t…
... URL]. It emulates BASIC, not machine code. I am still quite impressed ... startup screen and CBM BASIC 2 working, but the problem with ... possible to re-organise the screen to display 40x25 characters. ... slow down screen access.
The source code for 20 ...Vic 20 game better than Speccy version?Years ago, when I had my Vic 20 I had a game called Blitz, it was on the welcome tape in fact. Very simple game, but strangely addictive. For those t…
... URL]. It emulates BASIC, not machine code. I am still quite impressed ... startup screen and CBM BASIC 2 working, but the problem with the ... slow down screen access.
The source code for 20 ... it with the CBM Basic V2 3583 Bytes free Ready Screen?
48k games developed on the 128kSeeing as I don't know enough about this subject(or the history of assemblers/C/C++/BASIC/FORTH/COBOL/whatever programming kits), I thought I'd ask h…
... AF' is one byte in machine code, but as a text ... assemebler program being placed into screen memory or compiling the ... developing 40 kB of code at machine with 128 kB gives you much ... But developing the code on other more powerful machine (so called cross ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... memory and inability to deal with several sets of 16 BIT ... in Z80:
Application screen capture routine to real-time ... /> As this thread is about machine code games, here is some PC ... - Do what you want with the above code, if you know how ...Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... ever growing debate of asembler/machine code programming systems.
A ... instructions are processed in parallel with normal register based instructions.
screen name :) Wait, I tell a ...emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... or with the spectrum ula a whole third of the screen ... pixel sprites? interlaced video 384x256 with tv 90degrees to right rotate ... to do with having a BASIC listing that pokes a machine code program ... the ability to breakpoint the code with a full register dump ...Printer Printing Problem (assembler)I've a program that outputs to the lower screen at various places, using a combination of calls to RST $10 plus OUT-NUM-1 and PR-STRING. It also call…
There are a number of lower screen display routines which I want ... I mentioned above.
[code]
MC0047: ld a,$16 ... $10
ret
...
;print BC 3 digits padded
ret
[/code]Printer Printing Problem (assembler)I've a program that outputs to the lower screen at various places, using a combination of calls to RST $10 plus OUT-NUM-1 and PR-STRING. It also call…
... are a number of lower screen display routines which I ...
ret
...
;print BC 3 digits padded
ret
[/code][/QUOTE]
Does this ... br /> Try this
[code]
LPRINT USR START
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... actually, except you start with a garbage screen, maybe we can get ... lowest start address of my machine code programs - that is only ... m happy with losing a little bit of the screen for a ... could be minimised to 23976 with the screen display being compressed into ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... are poked into the machine code:
[code]
; --------------------------------------------------------------------------
... : mov edx,[input_buffer_ptr] ; Screen
add edx,SNA_listlen
with knowledge on this ...Character Printing routines - 27/32 lines?There are lots of extra character-per-line routines out there for 42,51,64 even 85 characters. Are there any that do 7/6 pixel rows - and do 27 or 3…
... these myself yet. Micro-Print is my personal favourite ... font it ends up with is pretty horrible - ... that it replaces "a" with its own version either - ... per line")
print at 10,10;"Standard ... - and it all compiles into machine code.
Boriel ...Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... I'm not familiar with microdrives, whan do you ... load another, perhaps some machine-code. The problem is that ... Interface2/Cartridges/Interface2_RC_New_Copier.htm"]screen resident copier[/URL] specifically ... =26055"]fun and games[/URL] with it...
