-
Help accessing menu on 128k +2Hi, I recently dusted my old 128k +2 speccy off, and got it up and running. I am having one problem though - I can't access the menu! When I turn i…
The [I]Edit[/I] key will normally bring up the menu, if in 128 BASIC. If in the Tape Loader, you will need to press [I]Break[/I] twice to return to the main menu. -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... the value revert to 0? This also applies to the program ... tehe PC value gets to 65535 does it return to 0.
[/quote ... ]
Yes, all 16 bit registers ... (including PC) wrap round to zero. -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... command and the value gets to 65535, does the value revert ... to 0? This also applies to the program counter ... tehe PC value gets to 65535 does it return to 0.
[/quote ... overflows, as do all the registers.
D ... -
Why relativly bad colour on Spec compared to other 8bit?Why relatively bad colour on Spec compared to other 8-bit machines like the Master system or even c64? I understand the 8x8 block that you could hav…
...
I want to check the Dragon out more ... late eightees I remebember goin` to a kinda `posh` mates ... mags... I never did return to look at the computer, ... to be achieved you ask, well, with the four basic ... was the missing link to his 128 bit Mega- ... -
How do I poke a Spectrum?I've forgotten how to do it. Does anyone remember?
... /> (hehe)
Really. From basic:
POKE address,value ... the fly. That, you have to figure out depending on the ... pokes? And how do I return to the game once I have ... -
ArmalyteI am sure a lot of folks here remember Armalyte, the fabulous C64 shoot-em-up that almost came out on the speccy. I think there was a demo on some of…
... little level editor in BASIC some time back. Its ... in BASIC.
Q,A,O,P to move ... whole level - press another key to return to the editor.
to OR this tile with ... Click / Save Target As /rename to EDITOR.SNA
... -
Programming MC challengeIn the 80-ies I got the following assignment for a programming course. 2 16-bit values stored in #8000 and #8002 must be added together and stored i…
[quote]
On 2005-08-22 20:11, AndyC wrote:
Wasn't in the spec. ;)
[/quote]
Well with an exit was ment a return to i.e BASIC -
Programming MC challengeIn the 80-ies I got the following assignment for a programming course. 2 16-bit values stored in #8000 and #8002 must be added together and stored i…
... exit was ment a return to i.e BASIC
[/quote]
Annoyingly now I'm back to 19 bytes. -
horror text adventure scenario writer neededany outthere? I started to make program for text adventure [B]Mysterium Magnum[/B] on basis of ?multiple choice? which was project I wanted to make …
... thought it would be in BASIC. :(
[/quote]
< ... [/B] completely pure, non-compiled BASIC!
but... just [I] ... - but some of them could return to previous point, some of them ... .png"]text scheme[/url] to be more exact what I ... -
TLOTRD - compiling problemsOk guys! A new demo for 'The Legend Of The Red Dragon' is nearly finished (just need my bro to draw some artwork as I'm using sample images from the …
... , and you may still need to use it in a cetain ... way to get your program to compile or run ... these need an exit to Basic, and then a return to the machine code ... -
ROM paging questionAssuming the Spectrum 128 memory map and port addresses, but two custom ROMs in place of the normal Editor and BASIC, what is the most efficient way …
... :
after_page2:
RET ; return to calling routine
... TO ROM0 HERE
after_page2:
[/code]
The basic ... idea here is that when you page from one ROM to ... RET it will return to after_page2 in ROM1.< ... -
Advice needed - Xbox EmulatorsDoes anybody have experiance of using a speccy emulator with an Xbox ? My intention is to install Linux and then try and run an emulator (most like…
... the virtual Spectrum was in BASIC entry mode, not that that ... would end the game and return to the title screen, as it ... for the emulator to emulate the Kempston joystick to, of course, ... />
KEMPSTON RIGHT
to the forty possible keys that ... -
Unpublished spectrum gameHi there I have a Spectrum PDS development environment and before I get rid of my old PC which has an ISA slot I thought I should ask this question i…
This might work as well.
When the code was still in BASIC you can
give a load command in an emulator which will load from soundcard or real tape.
Import your binary file and return to emulator. Then press break. -
how to pass arguments from Basic to MC ?can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this: PRINT USR xxxxx, arg1, arg2:…
... that are in the registers.
So to call a machine language ... function you need to actually store the parameters ... image pointed to by hl...
ret
BASIC:
... ROM functions then you need to set the appropreiate System ... -
Assembly or z88dk?Okay, so I want to expand my horizons and write bigger better games. I've looked in to both of these and it does seem I've got my work cut out. (Thou…
... to get the idea of single and
double registers and performing basic ... that I will be able to go the distance
and ... of time.
Thanks to all for your help! :) -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... in order, restore registers, re-enable interrupts and return to normal program execution ... .
The call to "im2_RegHookFirst()" registers a hook with the generic ... need to take care of the usual ISR details (save registers, restore registers ... -
Printer softwareHi guys Found a tape whilst going through a box of stuff. Clearly printed on the surface: RAM ELECTRONICS CENTRONICS PRINTER SOFTWARE (c) 1988 …
... the file you pointed to and compared to the BASIC file on the ... tape. I will send it to the guy who sent the ... , and the Mr Pigdog can return to me - is that okay by ... -
Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... just added the ability to GOTO a basic line number from ... assembly to z88dk, making it possible to exit to basic from asm ... an error occurs, basic returns back to the asm or C ... example) and then run "STOP" to return to the C/asm program. Quite ... -
The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... and a better version of BASIC, but as it had ... has it's internal registers visible to the system allowing ... planned just by hitting the registers.
The ... free memory spaces for BASIC of any 8 bit. ... lines were too expensive to compete on price. Rather ... -
** New Game In Development **As one or two of you may already know, Jonathan (Joffa) Smith is currently developing a brand new Spectrum game. The program is called 'SAUCER' It'…
... ' and 'pause' to abort and return to the menu screen. It ... implementing the 'planets' and basic weapon systems (The planets ... You'll need the buggy to mine for crystals. You ... 'll need money to buy weapon upgrades. You ... need to be f*cking good to get to stage ... -
** New Game In Development **As one or two of you may already know, Jonathan (Joffa) Smith is currently developing a brand new Spectrum game. The program is called 'SAUCER' It'…
... ' and 'pause' to abort and return to the menu screen. It ... implementing the 'planets' and basic weapon systems (The planets ... You'll need the buggy to mine for crystals. You ... 'll need money to buy weapon upgrades. You ... need to be f*cking good to get to stage ... -
Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... - the best way to deal with it is to create a lookup ... maps Y coordinates to screen addresses, and refer to that all the ... return the next address down. (You can also swap the registers around to ... -
Currah MicrosourceHi Anyone here got a Currah Microsource ? I have one, its one of the original eval units complete with 'draft' manual. Just interested to see how …
... and without MicroSource) except return 255 (as one would ... did a scan from BASIC doing an IN from ... GOOD NEWS!
To test the ROM I have ... the program crashed (returning to BASIC with the wrong ROM ... save the MicroSource ROM to tape via a tape routine ... -
Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... Double buffering is impossible with basic commands, as there is no ... a vbl under basic. it's too slow to catch a raster ... still sticking to basic, I believe a PAUSE 1 will return just after ... tearing. If you even need to worry about it... -
Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... project. I'm intending to publish everything once I' ... It'll be great to have a BASIC interpreter for it ... but will be nice to see it also running ... the error code and 'return' to the stacked address of the ... some degree. Other thing to consider is the addresses ... -
Wanted: z80 asm routines...for the Sam. This call goes out to Colin and others who know how it should be done. If you look on the Sam C disk you can see the implementation…
... are the standard BASIC
streams -5 to 16 (see ... command is executed from BASIC prior to running your program, ... with the correct call to the corresponding basic function:
to basic OPEN here
; put return value into HL ... -
Spectrum Basic InterpreterHello. I started this days a strange project: an interpreter of the Spectrum Basic that can run in a Spectrum. Here is a very preliminar version: […
... handling, equivalent to the ON ERROR GOTO of other Basic.
...
STOP 0 in Spectrum now return to the ... original mode, instead of always jumping to 48K ... code is converted to the native Basic form before execution or ... -
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..…
... to write an editor for others to use. Could be done in BASIC ... .
If you just wanted to mess ... you wouldn't even need to rip the graphics.
to know your z80.
Return to the game and everytime ... -
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…
... feels like freedom compared to Basic and Pascal to me. I've always ... , having been designed not to let the programmer do certain ... hassle of being confined to a handful of registers and restricted instructions ... but there is no way to print to the screen, draw a ...
