-
SpecBAS 0.724 Now available!Hi folks - Again, a new SpecBAS for you. Some stunning bugs made their way into the last one, so I had to get a new version out sharpish. And for o…
Hi folks -
Again, a new SpecBAS for you. Some stunning bugs made their way into the last one, so I had to get a new version out sharpish. And for once, you windows folks are at the bleeding edge :)
Anyhoo, new features are few ... -
Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…
... clear the screen with the ATTR P settings, reset PRINT AT ... -
Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…
... ). It too, had a different value (10k as opposed to 7 ... -
ZX81 shrinkwrapped tapesHi I've come into possession of 3 ZX81 shrinkwrapped tapes, one which still has a price label. They are published by sinclair. - Sinclair ZX81 Soft…
Collection Worth Saving?Hi, I've recently been reunited with my childhood collection of spectrum items - a boxed +2, original and a couple of Cheetah joysticks, loads of mag…
... it's actually of any value - either as a set or ... , Every Second Counts, Blockbusters
Value Pack Compilation Cosmic Crusader, BC ...SpecBAS 0.730 Now available!Well, I felt I should release SpecBAS as it is right now - my new son has been born (this one survived! \o/ ) and when he comes home I'll have very l…
... with caution! Too high a value can cause your program to ...The INPUT command routine ($2089)I was looking at the INPUT routine with a view to modifying the intro so that I could pre-load the workspace and edit an existing value, rather than …
... workspace and edit an existing value, rather than it always starting ... the actual assignment of a value can be made.
2161 ...editing strings with INPUT LINEHere's the latest in my unpredictable series of utility routines. This one I needed for the SAGE game editor; it emulates INPUT LINE l$ but with the …
... the enhancement that the existing value in l$ is presented for ...AZIMUT / Frecuency spectrum[code]start DI LD HL,#7F40 LD D,#58 loop LD B,#00 bucle1 LD A,H IN A,[#FE] XOR A,C AND A,L J…
... exit.
print in attr-bitmat to show the frecuency ...Football Director - Staying on easy levelUsing Spin load the tzx file from the WOS archive. Wait for the game to load fully and the main menu appears. From the emulator's tools menu select p…
... address as 65251 and the value as 162
and click ... /> Now enter address 65252 and value 18. Click add and then ...rotating HL left through CarryI've tried this several ways, and it works for a while, then a particular value has a bit set in an inconvenient place and it all goes to pot. Eg: "…
... a while, then a particular value has a bit set in ...A virtual machine in WindowsHas anyone any experience of a virtual machine in Windows? I'm thinking of trying this, mainly "just because", but also slightly because any Windows …
... Windows experience is potentially of value to me either at work ...Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…
... way that I contains a value between $C0 and $FF, the ...extension to Z80 opcodes spreadsheetI've set up an extra Excel spreadsheet which references Einar's v.helpful Z80TABLE spreadsheet and allows a list of Z80 assembler commands to be type…
... second cell, after which the value is passed along to the ...How Sinclair computer interprets audio and loads codeHello, First time posting here, so sorry if the question is already answered or is unanswerable. I am trying to find some info about how sinclair …
... sinewave, where a certain frequency value (in time) represents a location ...University ChallengeNearly two weeks ago Manchester University won the first University Challenge semi-final to get into the upcoming final against Pembroke College, Cam…
... last question easier. Moving a value to the other side of ...Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …
... RAM had retained the POKEd value - it had in ... low, writing the decimal value 2 to each one. ... ; reading the just written value back from memory (it ... location retrieved the decimal value 34 (it ought to ... In particular, the incorrect value read was always 34. ...Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
Optimize this: Distance CalculationBased on a taylor series expansion, suggested by NA_TH_AN, I've got this so far, which is far far faster than SQR(X^2+y^2) Formula is: in a right an…
... smaller, so we replace the value in C with the smaller ... value in A
distance_Cbigger:
; ...Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... ), sp
REPT 48, attr ; write the attributes
ld ... ix, attributes + 768 - 16 - (attr * 16)
; last byte of ...
ld iy, 16384 + 6912 - (attr * 16)
; last byte of ...giffgaffWell I just put a giffgaff micro sim card in my mobile phone, and a couple of hours faffing about, got it working, and have 3mb supposedly unlimited …
... .
Which is better value than Tesco payg. Though I ...Lame BASIC BEEPer editor - alphaI like music, like BASIC and find all current music utilities complicated. Since I enjoy Sinclair BASIC so much, I came up with a simple BEEPer edito…
... to increase and decrease the value for the note lenght/duration ...
-Want to prevent that value from being 0 or lower ... to do fails and the value becomes negative, ignoring my check ... completely
-The value shouldn't occupy more than ...IND/INDR/INI/INIR/OUTD/OTDR/OUTI/OTIRI'm looking for confirmation that the official Z80 User Guide from Zilog is wrong and that these composite instructions actually change the value of …
... composite instructions actually change the value of B first. You'd ...What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
... /> push af ; remember the value.
call nc,mpl ... /> push af ; remember the value.
call nc,mpr ; ... /> push af ; remember the value.
call nc,mpd ...TC1/TC2 Capacitance?What value of capacitance should the TC1 and TC2 have in an Issue 2 spectrum? (min and max value). I have looked around, but have been unable to find…
What value of capacitance should the TC1 and TC2 have in an Issue 2 spectrum? (min and max value). I have looked around, but have been unable to find any info about this.Restore HL' to?It is probably a simple question, but it's been escaping me for quite some time now. Is there an 'universal' value you should restore HL' to if your…
... />
Is there an 'universal' value you should restore HL' to ... created from my code, the value in HL' seems to be ...JSpeccy v0.90Hi4all, A new JSpeccy version has been released at my project webpage. This new release have many corrections, some optimizations and a few new feat…
... register is loaded with a value between 0xC0-0xFF and a ...Using CP and JR Z commandI have been trying to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40011"]convert a BASIC routine to machine code[/URL], but to no av…
... need to establish whether a value is higher or lower than ... a certain value.
Its years since ... would load A with the value and then CP it with ... the value you were comparing it to ...