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Fuse for Mac OS X 0.10.0 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…
... , Mark Woodmass).
[*] NMI causes Z80 to unHALT (Philip Kendall; thanks ... C, H and P/V flags on repeated IO instructions (Philip ... mouse status and Simple 8-bit IDE interface to be saved ... -
Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…
... work on a Z80. Yesterday I had a bit of spare time ... Diehard test. Here is the Z80 code for the (1,1 ... , the result being the 8 bit in the A register:
More 1-bit music from Mr BEEPGot an e-mail this morning but didn't see a thread, so here it is: [url]http://berlin_hq.micromusic.net/bhack.html[/url] [QUOTE]BHQ001 MISTER BEEP …
... ! This is the first 1 bit album ever to be released ... makes the work a little bit easier. Also I still can ... of these songs. They force Z80 to really hard work. ;)
bit, 8-bit and 16-bit chiptune/micromusic releases ...Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... the +2A/+3 halts the Z80 using WAIT?
All ... that the ULA halts the Z80 by forcing CLK high. I ... high), followed by a somewhat bit longer period with high wait ... to put a Z804020 CPU (Z80 capable of 20MHz clock), isolate ...Z80 'EXX' ConfusionI was working on a little Z80 routine last evening, and, having run out of registers, resorted to sticking one of the values into a memory location a…
... was working on a little Z80 routine last evening, and, having ... could speed it up a bit by using the alternative register ... instead (something in my short Z80 life, I've not tried ... decided to write some minimal bit of code to see if ...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…
... except the BIT n,(HL), BIT n,(IX+dis) and BIT n,(IY ... output), and it passes all BIT instruction tests (but fails RLD ... light on the situation?, also, Z80 emulator writers, have you implemented ... , which is updated after 16 bit additions, JR and LD r ...Z80 RRCA instruction...Hi Folks, Well my exploration of Z80 MCODE continues apace! I am struggling to understand how the RRCA instruction works. The official Zilog manua…
... br /> Well my exploration of Z80 MCODE continues apace! I am ... are rotated right 1-bit position. Bit 0 is copied to ... flag and also to bit 7. Bit 0 is the ... leastsignificant
bit.
They ... :
[CODE]Bit 7 6 5 4 3 ...Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... made my z80 computer with ... br /> ;*********************************
;(START BIT)
;*********************************
START_BIT ... br /> ;*********************************
;(STOP BIT)
;*********************************
STOP_BIT ...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…
... a problem with BIT, as it only changes the Flags register so ... I couldn't return a value, so "BIT ... parameter, so for BIT,RES,SET the bit number is the second ... c
sla c ;C =bit pos * 8
add a ...Testing Z80 op codesHappy new year all! I'm currently testing my Z80 emulator (hand written from scratch in C#) and I've possibly now gone insane, testing is taking hug…
... /> I'm currently testing my Z80 emulator (hand written from scratch ... ... my main concerns are the flags particularly as I'm not ... Zaks "Programming the Z80" book and implemented the Z80 emulator from that ...The most powerful 8-bit machine, and CPU?Further to the discussion in: [url]http://www.worldofspectrum.org/forums/newreply.php?do=newreply&p=621787[/url] What actually is the best 8-bit ma…
... actually is the best 8-bit machine ever made - discounting software ... what is the best 8-bit CPU, just wondering what advantages ... the Z80. Actually, why not? What is the best 8-bit CPU ... (as I imagine new 8-bit CPUs might have been designed ...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]…
... -Shift random number generator for Z80[/URL], I became curious how ... -Multiply-With-Carry) RNG for Z80. These generators are based on ... /> To make it suitable for Z80, I have chosen base b ... is the corresponding Z80 variant, which returns the 8 bit result in ...BIT b,(ii+n) contentionThe documentation says that BIT b,(ii+n) has this contention pattern: pc+1:4,pc+2:3,pc+3:3,pc+3:1 x 2,ii+n:3,ii+n:1 See [url]http://scratchpad.wiki…
The documentation says that BIT b,(ii+n) has this ... two bytes and the ufficial z80 manual says it takes 20 ...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…
... than other intructions (like say....bit 7,(iy+d)), would avoid ... which current ones in the Z80 set would you replace?Fastest Z80?Hi , Could somebody explain more about the Kawasaki Z80 33 MHz to me? Is it fully backwards binary compatible with older Z80s and could it be used a…
... explain more about the Kawasaki Z80 33 MHz to me? Is ... find this:
Z80
? 8-bit microprocessor
? Up to ...Compiling Lisp to Z80.I am doing some thought experiments on this. Here is an example of a Lisp program. It adds two numbers together. [code] (define (add x y) (if (= …
... code translated by me to Z80 (there could well be many ... , I've not done much Z80 before at all so bear ... the cp $00, because the flags set when popping a will ...maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …
... maximum addressable RAM for a Z80 using bank switching?
... of the four 8-bit Page Registers in Dave ... 8 bits of the 22-bit address bus, while the ... bits come directly from the Z80 address bus.[2] Effectively ... address space of the Z80 processor is divided into ....Z80 File Format when exported by SpecEmuI'm trying to parse a .Z80 file generated by SpecEmu but am getting a few discrepancies from [url=http://www.worldofspectrum.org/faq/reference/z80for…
... 'm trying to parse a .Z80 file generated by SpecEmu but ... .
[*] Byte 12 should have bit 5 set if the memory ...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…
... ] program.
It tests the Z80 Flags and also tests the MEMPTR ... .
On the Z80 Flags I get a few failed ... /> LD A, I/R
Bit n, (HL)
LDI
Z80 back in and getting the same failed entries on the Flags ...Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…
... this.
Z80 in ReVerSE runs at 42 ... MHz (comparable to 70 MHz Z80).
Two ... options:
1. Fast Z80 on the mainboard. Plusses: easy ... a bit slower than second option.
2. Fast Z80 in ... may be added to Z80 instruction set, 2 MB ...Assembly - Loops bigger than 255Hi, It looks like it's a bit difficult to make loops with more than 255 cycles on Z80 machine code, since the 16-bit decrements (DEC) do not alter a…
... looks like it's a bit difficult to make loops with ... 255 cycles on Z80 machine code, since the 16-bit decrements (DEC ... ) do not alter any of the flags.
Overclock the Z80 cpu to smooth out gameplay?Was thinking today of a Genesis/Megadrive mod I did a while back. It involved lifting the CLK leg on the motorola 68000 cpu (which in the MD, if I r…
... games that slowed down a bit when a lot of moving ... believe was handled by a Z80 cpu).
Well, I ... + or +3e) by lifting the Z80's CLK pin and adding ..."Z80 chip MUSIC SITE" updatedZ80 chip MUSIC SITE [url]http://z80.i-demo.pl/[/url] has been updated with following 1-bit chiptunes, recorded from real Sinclair hardware: [url]htt…
... z80.i-demo.pl/[/url] has been updated with following 1-bit ... chiptunes, recorded from real Sinclair hardware:
[url]http://z80 ... br /> [url]http://z80.i-demo.pl/Raphael_Goulart- ... br /> [url]http://z80.i-demo.pl/MovieMovies1- ...Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…
... but I am using a Z80 machine. I don't really ... wandering around a few 8-bit machines' forums asking the ... been mentioned that 1-bit sampling might be suitable ... dabbled in programming 1-bit sampled sound and so ... been reading up a little bit and, presumably, it's ...Intel x64 vs Zilog Z80Just been having a gander at the x86 CPU Architucture here: [url]http://software.intel.com/sites/default/files/m/d/4/1/d/8/Introduction_to_x64_Assemb…
... flags within this register: CF = Bit 0, PF = Bit 2, ZF = Bit 6, SF = Bit ...Help for beginner with z80Hi chaps, I'm reasonably new with z80, but had a fair amount of experience with 68000, so decided to give a few things a go. One little thing I'm t…
... /> I'm reasonably new with z80, but had a fair amount ... those 8 bytes and test bit 7 each time, then ... or off depending if that bit is on/off.
< ... jumping to a set/clear bit section of code, then doing ... and test stuff?
Bit of a ramble, hope at ...Concert txt files to Z80 or TAP filesHi everyone :) Can you suggest me a software to convert txt files to Z80 or TAP? (OS Windows 7 64 bit) Thanks
Hi everyone :)
Can you suggest me a software to convert txt files to Z80 or TAP? (OS Windows 7 64 bit)
Thanks16 Bit ADD versus ADCBesides the obvious difference that one adds without carry, and the other with carry, there is a startling difference in flag effects documented in Z…
... in flag effects documented in Z80 Manual.
[quote][b ... is set if carry from bit 11; otherwise, it is ... is set if carry from bit 15; otherwise, it is ... is set if carry from bit 11; otherwise, it is ... is set if carry from bit 15; otherwise, it is ...ZEsarUX 6.0 stableHi! ZEsarUX 6.0 stable is out! This is a major version, it includes some new machines and a lot of new features and bug fixes :) You can downlo…
... , 9-bit palette, lores mode, layer priorities, partial Next Z80 opcodes (see ... now set conditions for all flags, written as: FS,FZ,FP ...
