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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. …
... 171618]I'd like to be able to PRINT to the screen the Hexadecimal notation of ... a variable d(x). Where the ... hex string. I'll let the experts explain why:
< ... 13 AND xhex converter similar to this one. -
Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... I point it to the memory area containing the graphics? What does ... somewhere when you PRINT text to the screen. It does this by ... 8, and added to the number held in the CHARS system variable. ... read out and poked to the screen memory by the PRINT routine. Just ... -
If a C64 can do it...Forgive me if this isn't the right section. We've seen coders surprising us over and over again with excellent demos and things that a few years ago…
... , having been designed not to let the programmer do certain things, ... you don`t need to learn all the libraries etc etc, and ... , but there is no way to print to the screen, draw a line, etc ... . *That's* what the libraries are for ... -
Loading ProblemHi all, I'm new to all this emulation malarky, so please bear with me if this is either posted in the wrong place or just a daft question. I've dow…
... in, it's trying to print a message to the screen (something like "CODE ... : filename"), and it's printing past the ... end of the screen. Pressing "Enter" will scroll the screen up, and ... -
Loading ProblemHi all, I'm new to all this emulation malarky, so please bear with me if this is either posted in the wrong place or just a daft question. I've dow…
Hi, thanks the suggestion, but still not working : ... as suggested, but the black flickers at the bottom a bit then ... is writing black square characters to the screen). I pressed enter 10 times ... except "n" which causes a screen full of zeros then it ... -
Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…
... wanted a routine to PRINT graphics (from memory) to the screen at a ... certain x,y coordinate.
To do ... what you want, the DEF FNs described ... faster or slower than executing the equation were it written ... -
Bubble Bobble EditI thought I might have a go at editing Bubble Bobble myself after reading this... [url]http://www.worldofspectrum.org/forums/showthread.php?t=15452[…
... your corruption that's to do with the items so you need ... to do a bit more homework ... to be where you don't see any items appear on screen ... so you just need to check that items are being printed to the screen. -
Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?
... is a natural result of the way the screen is organized which is ... /> Adding 1 to the screen address in the first block increases the binary number "SSSLLLCCCCC ... when you enter the next third of the screen and the set of values ... -
Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?
... is a natural result of the way the screen is organized which is ... /> Adding 1 to the screen address in the first block increases the binary number "SSSLLLCCCCC ... when you enter the next third of the screen and the set of values ... -
Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?
... pixel modes) organized the screen with each byte rotated ... for the CPU to write the next part of each character to the screen, ... the logic that built the screen picture read the RAM only when the ... CPU didn't need to ... -
Why design a new Spectrum?Every so often, someone posts up about designing a portable Spectrum, or a new Spectrum with improved hardware capabilities, but I don't see why. I m…
... But isn't that down to the screen display rather than an ... Spectrum to an LCD screen, and you'll lose the illusion ... of colour merging, thanks to the ... "superior" LCD screen pixels, whereas a ... -
must be in a FAQ somewherePlease don't abuse me for this question. I will probably get round to learning MC at some point when I have time, but in the meantime I might want t…
... "move sprite" command and print to the screen with a "print at" command ... at the simplest level. You'll have to do it all ... sprite library. The advantage is you'll be able to make most ... of games as opposed to making variations on the one type of ... -
must be in a FAQ somewherePlease don't abuse me for this question. I will probably get round to learning MC at some point when I have time, but in the meantime I might want t…
... "move sprite" command and print to the screen with a "print at" command ... at the simplest level. You'll have to do it all ... sprite library. The advantage is you'll be able to make most ... of games as opposed to making variations on the one type of ... -
Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…
... study:
To copy SCREEN$ to memory address 32768
... screen area
LDIR ; do the copying
RET ; Return back to ... your basic program
To move it back to the screen ... area
LD BC 6912 ; length of screen ... -
Faster Pussycat, yer man (UDG)Right we are almost into a game area. Ive started to play with UDG and by using bins and pokes I can redesign graphics to my hearts content. Now Im…
... ,CODE "X" (or whereever the screen memory happens to be - it moves), and ... each row of the character on to the screen.
Within the PRINT AT ... , so any POKE you do to the screen will always only affect one ... -
Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…
... and I never did get to the bottom of that. (It' ... O port and outputting them to the screen or a 256-byte ... and stopping periodically to dump something from that buffer to the AY) and ... fiendish algorithms at work to determine the best possible transitions from ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... you have to somehow watch out for / match the screen drawing on the tv ... .
First, is the screen also drawn ... make sure no updates to the screen area of the memory is done when ... -
question about RST 10hhow do you set the position of the text when using 'RST 10h' to print to screen?
... 193308]No, I mostly use the PRINT USR start ( but ... course would eradicate the problem of BC being PRINTed to the screen.
...
[quote]
BTW for the Minigamecompo ...
Don't know where the 'thumbs down' came from, I ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... make sure no updates to the screen area of the memory is done when ... the raster isn't drawing the visible portion of the screen. This confines you to the ... time the raster is in the ... -
Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... thirds of the screen) from a "void" level to a work area ... ) Transferring 4096 bytes from the work area to the screen.
... Note that I'm assuming that the ... and erasing sprites in screen, to avoid the block transfers. It ... -
changing resolution on graphics cardsI have a nvidea 6600gt which is set at 1440 x 900 res, i am hoping to get a true widescreen lcd tv which has a resolution of 1366 x 768 but the 1366…
... res, i am hoping to get a true widescreen lcd ... of 1366 x 768 but the 1366 x 768 resolution ... doesnt appear in the options in the display setting. Is ... anyway i can get the 1366 x 768 res ... to play games or watch dvd, doesn't it just fit to the screen ... -
changing resolution on graphics cardsI have a nvidea 6600gt which is set at 1440 x 900 res, i am hoping to get a true widescreen lcd tv which has a resolution of 1366 x 768 but the 1366…
... , doesn't it just fit to the screen anyway?[/QUOTE]
to the native resolution of the lcd monitor the graphics aren ... starglider i haven't got the tv/monitor yet tommorrow hopefully ... -
Strange I see no PS3Ive just seen a couple of vid game adverts on tv (lara croft, Pirates or the ... and Tiger woods golf) Any idea why on the final screen of the ads,…
... 40 quid a year) to connect to the Playstation Network and it has ... file type to MPEG on the fly and stream it to the PS3.
the PS3 to the screen of your PSP, hell ... , you can control the PS3 via your ... -
Strange I see no PS3Ive just seen a couple of vid game adverts on tv (lara croft, Pirates or the ... and Tiger woods golf) Any idea why on the final screen of the ads,…
... 40 quid a year) to connect to the Playstation Network and it has ... file type to MPEG on the fly and stream it to the PS3.
the PS3 to the screen of your PSP, hell ... , you can control the PS3 via your ... -
costa capers ..Is CC a real followup to technician ted or what? I thought about the name.. coz it has nothing in common :)
Right, I've decided to have another go at this, ... 've got to the screen with the car hire on, and according to the map there ... there's a car blocking the entrance; how do I get ... this car to move?
Cheers ... -
costa capers ..Is CC a real followup to technician ted or what? I thought about the name.. coz it has nothing in common :)
... 've got to the screen with the car hire on, and according to the map there ... /> Buying the sombrero from the room to the left will cause the car to move. Dropping ... it will stop the ... -
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
... from 470ohm to 680ohm to stop data "leaking" from the lower bank to the upper ... bank, and from the ... ROM to the screen...
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
... from 470ohm to 680ohm to stop data "leaking" from the lower bank to the upper ... bank, and from the ... ROM to the screen...
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... output (eg print text to the screen). Instead C is extended ... ) and writing output (eg to the screen). There is "stdlib" which ... 1 char, equivalent to adding 1 to the address since chars ... one integer, equivalent to adding 2 to the address since integers ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... requires double width text to be printable to the screen and it requires double ... formula will have to be applied to the screen address to move down that pixel ... row. In the case of the ...
