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Correct flag response to BIT n,(HL) etc.When running the test program suggested by Arjun (thanks again), all intructions are passing the flag tests except the BIT n,(HL), BIT n,(IX+dis) and…
... tests except the BIT n,(HL), BIT n,(IX+dis) and BIT n,(IY+dis) ones ... output), and it passes all BIT instruction tests (but fails RLD ... updated after 16 bit additions, JR and LD r,(IX+d)?.
My emulator doesn't take "commands"Hi This is probably a question that is very hard to answer, but perhaps some of you have/had the same problem. In my own emulator (that I have built)…
... get an error on the bit 0,(IX+d) instruction.
just like the BIT n,r instruction, except for YF and ... /> from something completely different, namely bit 5 and 3 of the ... you can see it?s bit 3 that is the problem ...Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…
... /> ------------------------
rot r rot (rr+n) rot (nn) bit n,r bit n,(rr+n) bit n,(nn)
Exchanges
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EX r,r EX r,(rr+n ...Reading Spectrum+ keyboard versus rubber keyI've started trying to learn Spectrum machine code after a 30 year break. I've encountered something that's puzzling me and I'm hoping that someone c…
... alternatively you can use the BIT n, r instructions to query individual bits ...AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…
... X, OR=O, BIT=B, RES=R, SET=S
... 2nd opcode for BIT n (uses AND 2^n)
inc ... /> sla c ;C =bit pos * 8
... ","N","(",")","","{","}","]"
defb "A","X","O","B","R","S ... b,"=";USR 40021+VAL "R,a,b"
...New Spectrum emulator for DS[url]http://zxds.raxoft.cz/[/url] [quote]Features already implemented: * Solid Z80 core - possible bugs aside, the Z80 emulation is as complete…
... being the undocumented BIT N,(HL),R and BIT N,(XY+D),R instructions which should ... the proper way seemed a bit more complex than I was ... for interrupted LD A,I/R instruction.
* Full 128k paging ... to use all block/byte/bit/sample at a time schemes ...Fuse for Mac OS X beta releasesA beta version of Fuse for Mac OS X has been released at the dedicated sourceforge project: [url]http://sourceforge.net/projects/fuse-for-macosx/[/u…
... /> [*] Fix contention for LD?R, CP?R and IN?R (Philip Kendall; thanks ... , Mark Woodmass)
[*] Fix undocumented flags after BIT n ...Q. on a Gutz-like game (YANTG).Hello people, and other beings. I was playing [URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=%5EGutz$&pub=%5EOcean+Software+Ltd$&loadpics=…
... =on"]Gutz[/URL] a little bit and was reminded of another ... saw this on a Load'N'Run (boo!hiss!) tape and ... or Italian (yet not L'N'R etc) and have absolutely no ...Fuse for Mac OS X 0.9.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... /> [*] Fix contention for LD?R, CP?R and IN?R (Philip Kendall; thanks ... , Mark Woodmass).
[*] Fix undocumented flags after BIT n ...More Games For Sale N-RMore, probably the last list for today, enjoy.. Box 15 Single Cases Nightflite ? Hewson Nightflite II ? Hewson Ninja ? Mastertronic Ninja Massacre …
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... of the form a*b^r + 1, carry c & ... r x's < b such that t = a * x(n-r) + c(n ... -1), c(n) = t div b, ... so I have chosen r=8 rather than the ... tempting r=256. From the possible ... variant, which returns the 8 bit result in A:
...A few questions on the Z80A cpuI know this has been discussed before and I read (a while back) the post which goes over the different Z80A CPUs ...(CMOS, NMOS? can't recall exactl…
Whats it like to be a young speccy gamer now?From some topics on here it seems that alot of us(me included) have left behind our younger years in age along long time ago,so when we play speccy g…
... guitar, bass and drums, in r 'n' r gaming, you only need a ... that the 8 and 16-bit ones had.Spectrum Orchestra//quote We told you about a group from Texas using old Commodore 64s, an Atari 2600 and a Compaq luggable as instruments, but there is also a band f…
... following this one up a bit. The Cassette (what else?) costs ... E A T E N R E C O R D S *
Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…
... br />
In a BIT n,(IX+d) instruction, bits 3 ... Z80, used in 16-bit additions. Looking at the ...
LD r,(IX/IY+d): takes the ... jump
LD r,r': no effect
...Wo ist Pippi?anyone (hochstwahrscheinlich von Deutschland) has mp3/wav or any hearable audio format of [B][I]Wo ist Pippi[/I]?[/B] song? can´t find it on dc+…
... l?st den, bara sett n?r jag var yngre. Bra.
Laila, my swedish is a bit rusty, have I made any ...Wo ist Pippi?anyone (hochstwahrscheinlich von Deutschland) has mp3/wav or any hearable audio format of [B][I]Wo ist Pippi[/I]?[/B] song? can´t find it on dc+…
... l?st den, bara sett n?r jag var yngre. Bra.
Laila, my swedish is a bit rusty, have I made any ... />
Rostig? K?ra n?n! Nej, det ?r det inte. Du f ... ?rst?r v?l svenska.
...ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…
Q. on a Gutz-like game (YANTG).Hello people, and other beings. I was playing [URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=%5EGutz$&pub=%5EOcean+Software+Ltd$&loadpics=…
... =on"]Gutz[/URL] a little bit and was reminded of another ... saw this on a Load'N'Run (boo!hiss!) tape and ... or Italian (yet not L'N'R etc) and have absolutely no ...Fuse for Mac OS X beta releasesA beta version of Fuse for Mac OS X has been released at the dedicated sourceforge project: [url]http://sourceforge.net/projects/fuse-for-macosx/[/u…
... /> [*] Fix contention for LD?R, CP?R and IN?R (Philip Kendall; thanks ... , Mark Woodmass).
[*] Fix undocumented flags after BIT n ...Emulator accuracy test?When I first created my emulator it worked fine. But then I found one or two games that had odd quirks. Eventually I found the flag or command that w…
... , or whether the undocumented BIT n,(IX)|r is doing what is expected ...Czech this for me, please(Apologies for the crap pun... ;) ) Hearing the brilliant "Knife-Edge" by Emerson, Lake and Palmer recently has caused me to seek information on Jan…
... used on letters c, d, n, r, s, t (in czech)
c, d, l, n, s, t (in slovak)
but for example "n" with hacek sounds the same ... simply makes the prpnounciation a bit longer (like it?s w ...Tips on (dis-)assembling Z80 instructionsedit: Naturally I managed to post this in the wrong forum. I'd much appreciate it if any moderator would move it to the development section. For the…
... be that you have a n-ary tree of possible character ... compute opcodes (check it on BIT x, r type instructions) by given ...Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
... Spectaculator
BIT n,(IX+d)... passed
... BIT n,(HL)
BIT n,(IX+d)
BIT n,(IY ... BIT n,(HL)
BIT n,(IX+d)
BIT n,( ... R
BIT n,(HL)
BIT n,(IX+d)
BIT n ...
rich_chandler
June 2009
Emulators
Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
unwelcome callersI can't be doing with em.. why can't they read the f'ing sign.. NO door to door sales folk.. or chuggers etc although.. I never thought I'd say this…
... bend the truth a little bit if the person at the ... door looks a bit of a mug.
N-Power were just as bad ... a friend who worked for N-Power for a while, he ... called him a worthless lazy N****r or words to that effect ...unwelcome callersI can't be doing with em.. why can't they read the f'ing sign.. NO door to door sales folk.. or chuggers etc although.. I never thought I'd say this…
... bend the truth a little bit if the person at the ... door looks a bit of a mug.
< ... bollocks like that.
N-Power were just as bad ... called him a worthless lazy N****r or words to that effect ... you [B]have [/B]to " (N Power)
"We've ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... Machine type: Pentagon
BIT n,(IX+d)? failed (0x10)
R : FBF7 failed, expected 220C
BIT n,(HL) : C8B0 ... failed, expected 6208
BIT n,(IX+d ... ) : DE69 failed, expected 4AD9
BIT n,(IX+ ...Video gaming coincidencesThere are some strange video gaming coincidences, when you think about it. For example: 1. [B]Half-Life 2/Breakdown[/B] In 2004 Half-Life 2 came o…
[QUOTE=Turkwel;544295]...
n! / r!(n-r)! where n=10000 , r=2
Result = 49 ... find most FPS games a bit cack...very repetitive IMHO. Give ...
