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Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... a english version with english instruction. But I can help you ... i try boulderdash clone!!!". every single one said that. hahaha. i ... -
How do I avoid BASIC becoming corrupted on returning from a M/C routine?I'm having trouble with my BASIC program becoming corrupted on returning from a m/c routine which sets all the registers (including the shadow regist…
... the next instruction in the ROM after the
single-operation evaluation ... -
Tales of hate and despair in 8-bitsThis topic seeks to shed some light on one of the most obscure questions a spectrum user can ask. Why do we hate Commodore?
... vs scrolling vs music vs instruction set vs basic vs keyboard ... early this year when i single handedly had to defend myself ... -
Unknown Games For ZX-Spectrum For Spectrum in period from 1980 to 1993 was made more 15000! games ...Where other 9000?(Don't check info) Also i find Names of very good games fo…
... to try to collect every single original UK Spectrum release (full ... terms of supplying inlay and instruction scans, whereas in my db ... -
Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…
... instruction for the Z80 to execute. Usually this is a single ... -byte RST instruction that performs a subroutine ... ' instead of a 'ret' instruction so that external devices can ... last machine cycle of an instruction. Instructions can last anywhere ... -
Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]
... undocumented behaviour of the DAA instruction -- ie what happens if ... an annoying "add a,0" instruction or similar. Then an ~ ... an effective single bit to indicate whether the last instruction was ADD ... the last instruction was ADD/SUB -- the DAA on a single hex ... -
Z80 coders compoIf you're interested in Z80 coders compo, visit my page [url="http://mbr.nm.ru/compo.html"]http://mbr.nm.ru/compo.html[/url]
... an effective single bit to indicate whether the last instruction was ADD ... -
+D/Disciple games archive?Hi all, Having finally got my disciple to work, I'm starting to have a look at hacking multiload games. Is there any archive on the web with games t…
... the dat files into a single file.
All these ... a special opcode -- the "NOPD" instruction $ed $?? inserted where the next ... disk. There is also a single snapshot file that has had ... files are rolled into a single slt file. You'll have ... -
+D/Disciple games archive?Hi all, Having finally got my disciple to work, I'm starting to have a look at hacking multiload games. Is there any archive on the web with games t…
... -7. Then the special "nopd" instruction is executed (the two bytes ... is a do-nothing NOP instruction. On an emulator that supports ... above, searching for the NOPD instruction in the code, replacing with ... files are rolled into a single slt file, which you will ... -
Unbelievable tape loadersHi, I search the most unbelievable tape loader. For the present I think the loader from game Joe Blade 2 is the winner in this competition. (During l…
... have quite a cool credits/instruction sequence.
Ted 48 ... 've yet to see a single loader which impresses me as ... -
Draft specs for TZX v1.20Hi all! In the attempt to restart the development of the TZX format, I've put online the first version of the draft document [1]. At the moment ther…
... to have those in a single .TZX file.
If ... collection - I've got inlay/instruction scans for all the tapes ... -
Codies help? Werewolves of LondonHi All, never one for shying away from the deep end, having only just dipped my toe in to the world of machine code I find myself trying to find out …
...
RST are fast single-byte calls. The fact they ... are single byte means they may ... the peripheral supplies an instruction to execute when it ... calls. RST, being single byte, is easy to ... switch on spotting an instruction fetch from address #0038 ... -
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…
... way. Once the current instruction is complete the z80 ... interrupts. The "ei" instruction re-enables them so that ... instruction for the z80 to execute. This would typically be a single ... -byte "RST n" instruction that effectively causes ... -
Z80 vs. 8080.[QUOTE=obo]... because 8080 is pretty much just a cut down Z80.[/QUOTE] Really? So what's been cut, and why? Hang on, didn't the 808 evolve from the…
... , the 8080 has only a single interrupt mode (equivalent to Z80 ... default startup mode). The 8080 instruction set also uses a different ... -
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…
... market. It was probably single-handedly responsible for creating the ... * being intimate enough with the instruction set that you are familiar ... the other hand has a single accumulator and a lot ... allocation is painless and the instruction set can be considered ... -
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…
... think that measuring efficiency of instruction sets based on such a ... is.
Assuming your instruction counts are accurate (I'm ... the ix one where the instruction times are 7 t-states ... the push/pop with a single inc, and the inc/dec ... -
How are people developing?Are most coding on actual HW or under emulation, or cross developing?
... to the existence of a SINGLE CASE of a (decent) cross ... allowed by the Z80's instruction set is, IMHO, very, very ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... time of 8 cycles per instruction fetch then you'd have ... -- the 120ns DRAMs. These are single cycle random access at 8 ... -
Speccy graphics on CBM64The recent "Starquake" thread had me browsing through Steve Crow's portfolio of games and I was quite surprised when following the links to the CBM64…
... of processing speed.
Every instruction on the 6502 only takes ... they definitely aren't all single cycle instructions. And the 6502 ... -
Mayhem Accelerator - Prototype Complete [Sam CoupI am now pleased to announce that on the 8th June the prototype of the Mayhem Accelerator was finally completed. With work on the accelerator start…
... the 6809 breaks down its instruction execution process. The following was ... the 6502 series, used a single clock cycle to generate the ... -
Where to start?Hi all, I wanna start coding something for the speccy. I have good experience at C/C++ and some other languages. I have coded asm on pc too, and ma…
... the instruction which is to load the HL pair with a single ... -
Where to start?Hi all, I wanna start coding something for the speccy. I have good experience at C/C++ and some other languages. I have coded asm on pc too, and ma…
... the instruction which is to load the HL pair with a single ... of a deficiency in the instruction set. Usually it isn't ... -
Whats an .SLT file?I found a website with a load of them on. Spectaculator gives no icon in windows explorer for them.
... load data files into a single file.
The snapshot ... ("NOPD") which is an undocumented instruction that behaves like a NOP ... few, just replacing the NOPD instruction with a jump into disk ... -
My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... B so that the DJNZ instruction can be used. However, it ... can be done with a single "or a" rather than two ... -
Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…
... the ascii code of a single keypress (in_GetKey uses in_Inkey to ... entire keyboard in one IN instruction to make sure no more ... -
I wonder if . . .An M68k could emulate a ULA. You know, like the ZX80 used the cpu for rastering the picture on the screen. This would mean that the people who clone…
... , since it can run one instruction per clock on average), and ... can do it in a single CPLD (the little brother to ... -
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…
... i, res;
// have single byte 76543210 in bmp
single UDG byte and returns the ... -
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…
... asm that uses the LDIR instruction for the byte copy. In ... that is reevaluated on every single loop iteration (strlen() is run ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... the line to call the instruction on the next line.
single case where you want a ...
