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Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... for start bit
start_bit: in a,(RS232_DTA) ; rs232 bit | 11 ... /> data_bits:
in a,(RS232_DTA) ; bit 0 | 11 t-states ... br />
in a,(RS232_DTA) ; bit 2 | 11 t-states ... br />
in a,(RS232_DTA) ; bit 6 | 11 t-states
AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... if the first note table in ProTracker (which the notes ... has to be in PT3 v3.6 format and you have ... br /> ; music is in ProTracker3.6 format (minus the 100 byte ... /> jr z, ch_noam
bit 6, c
jr z, ch_amin ...
[/code] code continued in next post ...Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... data bits
in a,(RS232_DTA) ; bit 0 | 11 t-states ... 0
in a,(RS232_DTA) ; bit 4 | 11 t-states ... 0
in a,(RS232_DTA) ; bit 5 | 11 t-states ... cp 0
in a,(RS232_DTA) ; bit 6 | 11 t-states
Port 254 emulation problem. Help, please ...Sorry, but my english is not pepfect. I have a problem and need in professional help. I have developed hard-soft emulator of ZX Spectrum 48. The link…
... of the hex code dump in the file. :P
//IN A, (port)
if ... to all ports with low bit reset
{
result = value ...
bit 6 set to the appropriate ear_bit; //as detailed in the CSS ...Port 254 emulation problem. Help, please ...Sorry, but my english is not pepfect. I have a problem and need in professional help. I have developed hard-soft emulator of ZX Spectrum 48. The link…
... as ones, bit 6 - bit of information from tape (in case of bit 0 of ... people`s tollen me that bit 5 must be reset to ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... /> inc (hl) ; next column
bit 6, (hl) ; column lower than 64 ... ;~?
; -----------------------------------------------------------------------------
[/CODE]
In BASIC, type [B]CLEAR 64860 ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... )*2) ; address of channel offset in streams table
; -----------------------------------------------------------------------------
inc (hl) ; next column
bit 6, (hl) ; column lower than 64 ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... address
; offset in streams table
ret ... hl) ; next column
bit 6, (hl) ; column lower than ... inc hl ; store AT_ROW address in HL
inc (hl ...Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…
... square shape the signal amplified in the TL082.
[center ... 's very few affected instructions in the loading loop.
... from Audio Source" option. Once in the emulator, the "Export" ... * FFh. Read-only. "EAR" port, bit 7. Decoded bit value, bit 0 (see below)RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... gets a 16 bit value , so i reversed it in
... channel address
; offset in streams table
ret
bit 6, (hl) ; column lower than 64 ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... address
; offset in streams table
ret ... hl) ; next column
bit 6, (hl) ; column lower than ... inc hl ; store AT_ROW address in HL
inc (hl ...Justin Beeper - new demo for the unexpanded 16K Speccy[img]http://pouet.net/screenshots/57726.png[/img] This was my entry for this weekend's [url=http://www.sunrisedemoparty.co.uk/]Sunrise[/url] demo pa…
Odd - in ZXSpin I don't hear anything. Is this an ear/mic bit issue?
In fact, if I set Spin (0.666) to 16K mode, it won't load the .TAP.Justin Beeper - new demo for the unexpanded 16K Speccy[img]http://pouet.net/screenshots/57726.png[/img] This was my entry for this weekend's [url=http://www.sunrisedemoparty.co.uk/]Sunrise[/url] demo pa…
... - in ZXSpin I don't hear anything. Is this an ear/mic bit ... issue?
In fact, if I ... ]
This loads fine in Spectaculator 16K mode and sounds ...ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…
... able to reimplement it. In the short term I' ... could describe the hardware in about a page of ...
[QUOTE=Thommy;564367]So in that case does INT still ... NMI is generated directly from bit 6 of the refresh address, ... on the counter. So in theory if you wrote code ...Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?
... with your victim byte in a & the ... answer is returned in a
2: reserve ... ld e,2
bit 6,d
call nz, ... /> dec e
bit 7,d
call ...Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?
... the extra bit that brings the new bit in and also ... in two's complement, so the sign bit (7) is extended to bit 6 ... , and also keeps its value (the sign must be kept). In ... enter a 0 in the rightmost bit (0), and ... enters a value of 1 in bit 0. (More info [ ...which zx-spectrum games uses 1bit sound samples?hi! I'm looking for zx-spectrum games using 1bit sound samples. Compairing with msx, which has far less games available than zx-spectrum, there are f…
... 2-bit sample player.
It uses in an ... repeated by the value specified in the B register when ... containing four 2-bit samples (bit 7/6 high/low of ... .co.uk/files/2-bit.sna"]http://princegaz.pwp. ... nop 4
loop1 bit 6,c 8 45 cycles
Yamaha Keyboard for Sale.Folkes I'm selling one of my old keyboards, a Yamaha PSR510 which cost be about ?600 in the mid 1990s. Its an all in one with 61 keys, 128 sounds, 8 …
... sure it's a nice bit of kit, but at the ... just have to wait a bit for them to come along ... />
I got it in 1995/6, in 1999 I went back to ... had the 610 & 630 in, but no 620
Arcade Game Designer 2.0 releasedI know dozens of you downloaded the previous version of AGD. Well, you can put it away now because I've made some major improvements to that version…
... working on a little something in v2.6!
Jonathan, AGD ... once I've done a bit more. It's a lot ...Speccy / PC & TapesHi, This year I am feeling a little retro / nostalgic for the speccy of my childhood - was it really 25+ years ago!. Anyway, I was thinking of buyin…
... speaker 'out' to the spectrum 'ear/in' socket?.
(4) If ... or more reliable?.
(6) Anyone think this is a ... childhood memory?.
Thanks in advance for any response(s ... 48k is greatest. :)
6. No, this is great idea ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... - All memory is stored in Bytes - i.e. groups ... the left-most bit (bit 7), position 1 at bit 6, and so ... bit 0 (the right-most bit). Position 8 is bit 7 in ... Sprites are usually also defined in bytes, and so if you ... all the bits in your sprite 1 bit to the right ...joining lines of BASICDue to overwhelming demand - well, one demand - well, more of a suggestion, really - here's a routine to join together lines of BASIC. The vertical c…
... next line number in sequence is already in use, or ... bit in FLAGX for extra info:
* Bit 6 is set to indicate "really in ... been pressed), as the bit 5 edit flag used by ... existing line or typing in a new one. Using ... was no equivalent line in PROG didn't work ...Picking apart spectrum screensDear all, Being a fan of remakes, I'm constantly trying to pick apart spectrum game screens to see how they're made up - how many characters one pla…
... and overlaid with a grid in a few lines of BASIC ... /> inc hl
NEXTSET:set 6,(hl)
inc hl
jr nz,NEXTBC
bit 6,(ix+1)
jr nz ... br /> SETRES: set 6,(ix+1)
res 6,(ix+4)
Latest Fuse built from SVN on Debian Squeeze, would anyone like a tutorial?I have just build the latest version of [url="http://fuse-emulator.sourceforge.net/"]Fuse[/url] from source on my Debian Squeeze desktop system. It …
... Kendall;605416]You mean a bit like [url=http://fuse-emulator ... to make sure the binutils in Debian 6.0 has all the ...Another BUG play tapes, in ALL EMULATORs when press STOP1 FOR n=1 TO 20 : PRINT IN 254 : NEXT n : PRINT AT 0,0 : GOTO 1 RUN Type this simple code, load a TZX, pres PLAY, when ear input change between 191 …
... 191 by 255 in test. but 73 ?? ... In ZXSpin in 48K it use ... br /> If the most of bit 6 of port #FE are 1 ... this:
In version "7/7" in 1 Byte of data ... br /> 3 SD errors in 1 BSD. In 6 BSD are 18 SD ... be wrong. without change 1 bit in data. :-o (this is ...feeling very depressedAnybody ever felt like commiting sucide? Not a joke and I ain't answering troll or just want attention either, this is the only forum that I post on …
... throughout the past two years, in fact being honest I relapsed ... kinda still struggle a tad bit.
But I'm ... good financially despite not working in almost 6 years because of this ... reasons to get better and in worse case to live, then ...BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... do it. On the Timex, in hi-res mode, the borders ... />
And bits 7 and 6 are unused... Maybe they originally ... the border bright (bit 6 on) or even flash (bit 7 on), but ...BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... ;623238]And bits 7 and 6 are unused... Maybe they originally ... the border bright (bit 6 on) or even flash (bit 7 on), but ... was scrapped?[/QUOTE]
Bit 5 isn't used either ... and 4 are (to activate EAR and MIC). I doubt there ...Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... $FE bit 7: always value 0 in TK90X, always value 1 in TK95 ... and ZX-Spectrum.
[*]Input port $FE bit 6: default ... value 1 (when there's no input signal) in both ... /> [*]Input port $FE bit 5: usually 1 in TK90X, but when ULA ...
