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RS232 - built-in vs. Interface 1Hello all. After some advice, and I figured someone here would probably be able to help. I'm the owner of a (grey case) Spectrum +2, and I'm keen …
... has to do all the parallel to serial conversion or serial to parallel conversion work ... itself. For any reasonable speed, it can only manage to ... made, so they are hard to find. Worse, most were ... retro' computers may be able to make one for you if ... -
Has anyone tried to compose any C64 soundtracks on an AY chip?There is no doubt the SID chip was an excellent soundchip and was used heavily by great composers such as Rob Hubbard. One of my favourites is the Mo…
... can be done with SID to AY conversion...
Of ... "c64 .sid player coming soon to specy 128!!!", under Announcements...
to the ZX... The middle ... hardware version is designed to channel the SID tune directly ... -
Dynamite Dan II - Island 6 - HELP!Hi all, can someone possibly create a snapshot of Island 6 (car park island) on Dynamite Dan II for me please? I'm trying to work out why half the…
... for compiling: Copy to ZXSpin's assembler, assemble to binary file. Open TAP ... click Open and select compiled binary, click OK and save TAP ... /> ld hl,text ; Point to PRINT text
print2: ld ... br /> jr z,poker ; jump to poker (key reading routine)
Quiz games like the Kosmos Fact Files from the Answer Back SeriesI don't expect it will be done but this idea is at least worth a mention:- .The Kosmos "Answer Back" series of quizzes (loader and separate quiz pack…
... loader progs to work .And to get these to run with ... quizz from tape . To modify these to work with microdrive would ... Quizzes from Argus Press appears to be quite extensive . For ... not appear to have gathered enough sales to warrant conversion to Micrdrive and ...Strongest aspect of Spectrum BASICWhat would you say is the strongest aspect of Spectrum BASIC compared to other BASICs on other micros at the time. I think it might have been the Fun…
... Also it encouraged me to try to do more whereas everyone else ... in turn allowed me to use Basic to make mobile titling and ... which was my first introduction to binary which learning about otherwise might ... [i]signed binary[/i] - so that I still have to brush up ...Strongest aspect of Spectrum BASICWhat would you say is the strongest aspect of Spectrum BASIC compared to other BASICs on other micros at the time. I think it might have been the Fun…
... Also it encouraged me to try to do more whereas everyone else ... in turn allowed me to use Basic to make mobile titling and ... which was my first introduction to binary which learning about otherwise might ... [i]signed binary[/i] - so that I still have to brush up ...Is it possible to use two spectrums linked with one acting like a co-processor?Just wondering. Would be kind of interesting, but I guess two interface ones would be needed, or was there other ways to connect. What about ear t…
... types) it was possible to link two ZX Spectrum ... had to do all the parallel to serial, serial to parallel conversion, handle ... from having to do parallel to serial, serial to parallel conversion. But as ... processor.
To make maximum use of both ...Is it possible to use two spectrums linked with one acting like a co-processor?Just wondering. Would be kind of interesting, but I guess two interface ones would be needed, or was there other ways to connect. What about ear t…
... types) it was possible to link two ZX Spectrum ... had to do all the parallel to serial, serial to parallel conversion, handle ... from having to do parallel to serial, serial to parallel conversion. But as ... processor.
To make maximum use of both ...Method to read byte as binary string rather than dec?Hi all Am fiddling around with the screen buffer and have written a routine to scan the screenbuffer into upper ram and then write it back in upside…
... and have written a routine to scan the screenbuffer into upper ... I am trying to find a way to reverse each 8x8 ... could read each byte as binary I could have an 8 ... byte buffer to store the 0 and ... read backwards, but as its decimal I cant do this easily ...ANNOUNCE: BASin r14 is up. New SCREEN$ paintbox included.Hi all, Well, I can't sit on this any longer - so I've released it. Let's all get a good testing session going, eh? You can get the new BASin [url=…
... is used wherever a binary object is to be imported into ... import as DATA (hex or decimal), REM statements, or as a ... editor now "exports" data to the Universal Binary Importer.
Added - ... 5-byte -> Floating point conversion routine which caused all sorts ...conversion of tape game to other formatHi All I've read many of the posts on this subject but I'm a bit stumped. I've recorded a WAV file from a taped spectrum program using Audacity - so…
... good - I then tried to see if it would load ...
So I then wanted to convert the file from a ... wav to voc format - as ... file mentioned doesn't seem to exist. So I tried ... Help.
Any conversion advice gratefully received,
Thanks ...how can we convert .z80 to .tap ?is there some way to convert a .z80 file (specially 48k) to .tap, in a similar result as saved from Multiface1? (i'm asking this because i imagine th…
... a .z80 file (specially 48k) to .tap, in a similar result ... conversion can be relativelly simple, without further differences, since i imagine binary ...Importing binary data to paged memoryI really could use some hint :) Many emulator have a feature - open/ import binary. I select the file, give starting adress and voila ! But most of…
... have a feature - open/ import binary. I select the file, give ... and I need to write my file to a page which ... emulators and only Spin seemed to have something similar:
< ... />
Any advice - how to do it in Spin or ... any other emulator capable to do it?Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... know about, to easily convert a binary number into BCD ... , from which it's very easy to ... to shift to the left, and adding 3 to ... enough memory for the binary representation of the number ... ds 308,0 ;Space to store BCD representacion (616 ...Binary to REMHi, I'd like to convert binary data stored on tape into BASIC rem statements that I will then save to disk. Is there a utility to extract the files …
...
I'd like to convert binary data stored on tape into ... I will then save to disk. Is there a ... saving the memory area to disk to extract it with disk ... I'd like to get the actual binary bytes from the ... tape (minus the header) to a ...Z88DK v1.99B ReleasedAt Sourceforge: https://sourceforge.net/projects/z88dk/ It's been a year since the last release so it was time for another. This is another tran…
... assembly language libraries necessary to develop code in either ... org/forum/
Includes link to the nightly builds.
... php
Introduction to Compiling Using the Classic C ... examples
Introduction to Compiling Using the New C ...Fast Binary to Text DisplayI've done this thing that takes some memory contents and converts it to a Binary version of 0's and 1's on screen. However, I've no idea what to use …
... memory contents and converts it to a Binary version of 0's ... , I've no idea what to use it for!!
Any ideas? Might be useful to someone if they've a ... just added my scroller to the bottom to indicate how fast it ...binary inversioni know this is a bit of a maths question but how to i find the decimal opposite of an 8 bit binary number? like inverting all the bits? so say 255 be…
i know this is a bit of a maths question but how to i find the decimal opposite of an 8 bit binary number? like inverting all the bits? so say 255 becomes 0 and 0 becomes 255.
like 11111111
00000000Elon Musks's Blastar (Conversion)Back in 1984, the 12 year old Elon Musk wrote a rudimentary video game for his SpectraVideo SV-328 (another Z80 Microcomputer) [url="https://www.t…
... Since it's quite instructive to see what 12 year ... 't yet know how to do proper attachments so ... INVETERVAL type commands to force periodic calls to the game ... version can be reduced to less than half the ... my UDGs were in decimal rather than binary). I fixed an ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... of subtraction (33 - 2 in decimal):
00100001
- 00000010 ... is, I know how to make a binary subtraction and I know ... half-carry flag is there to support the DAA instruction. There ... about BCD representation and a conversion table in one of the ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... [code]
; write unsigned decimal integer to ascii buffer
... is 32 or so for binary representation.
... /> ; but forget about binary and octal -- they aren' ... /> The granddaddy of number conversion is probably an implementation of ...Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... flag and some instruction to decimal adjust after an addition ... in BCD but the decimal adjust has overhead.
to correct an addition ... extra storage space and conversion, dunno if that will ... bignum just set it to all binary 1s. Well if ...Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... would be easy to then do an octal-decimal conversion using the ... as a decimal
; The intermediate octal conversion overwrites the binary number, ... extending
; from right to left. Similarly, the decimal ...bit manipulation conundrumWhat's a neat way to change this bit pattern in registers BCDE: [code]Loop0: ;change B:00000000 C:abcdefgh D:ijklmnop E:qrstuvwx[/code] to this bit …
... to octal (which is very quick) and then doing an octal-decimal conversion ... to allocate extra space for the conversions.
A direct binary-decimal conversion ... could be done using the same method as for octal-decimal ...A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... ; base 10 conversion (16 for hex, 2 for binary, etc)
ld ... de,buffer ; where to write the ... something smaller that does only decimal conversion, there is something in there ...How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... use decimal. I don't personally like to, preferring to remain ... though there is no conversion from decimal step. I just work ... to me to work with weird decimal numbers, so disconnected from the binary ... /> If you want to use decimal numbers everywhere then don' ...Interesting VAL featureHi Folks, No doubt most people know this but it is new to me! The following code generates the answer of 10. [code]10 LET A$="X+X" 20 LET X…
... /> Now that is really useful - Binary to Decimal conversion in one easy step!
Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... end, I decided to simply omit the conversion from hex and add ... .
BCD stores 2 decimal digits per byte. Mysterion is ... and certainly faster than displaying binary.
BCD's compactness ...Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... converting a binary number to decimal by reading the binary number ... />
The conversion method of repeated subraction by ... ;Outputs:
; C:A = BCD conversion
;Destroys:
; B ... /> ; L:H:A = BCD conversion
;Destroys:
; ...
