-
TASM, Z80 and Spec emusHi! Having some novice questions here regarding TASM and writing machine code for the Speccy emus... Now I have configured TASM into my EditPlus and…
... or Spectaculator? They can't read these files as I understand ... think) what ends up in memory after loading it...
memory cells, i.e if I ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
...
* M1: 4 tstates: read the opcode (0x34).
* M2 ... : 4 tstates: read (HL) and increment it.
memory at location 256 * I ... * M4: 3 tstates: read low byte from the interrupt ... /> * M2: 3 tstates: read low byte of 'nnnn' from ... -
TommyGun - Utility ... what's going on...For those interested, Tony has been busy lately and unable to put as much time into TG as he'd like. He also has a child on the way soon. He told me…
... will contain Editors for coding, memory, sounds, actions, scripts, etc.
Read next question )
Strange layout of Spectrum video memoryHello, does anyone have an idea why the Spectrum's video memory has such a strange layout? I understand that a resolution of 256x192 is an easy mean…
... why the Spectrum's video memory has such a strange layout ... it easier to address video memory. I also understand that the ... ) are a compromise to limited memory. But where does the line ...Hey Hey 16kSincere apologies if this has been posted before - I had a look but couldn't see anything... [url="http://www2.b3ta.com/heyhey16k/"]http://www2.b3ta…
... tear to my eye in memory as well as a smile ...A few questions regarding EmuZwinA few questions regarding EmuzWin 1. I have been trying to write a program to generate multicolour effects on the Spectrum,ie more than 2 attributes…
... something to do with contended memory, but don't know a ... of the screen is being read, although I don't fully ...A few questions regarding EmuZwinI had posted this in the development forum and then remembered there was an emulators forum, so apologies for the repetition. 1. I have been trying …
... something to do with contended memory, but don't know a ... of the screen is being read, although I don't fully ...RETRO GAMER ISSUE 7 now available to pre-order!Retro Gamer issue 7 will be available to buy from August 31st, and copies can now be pre-ordered from [url="http://www.retrogamer.net"]http://www.ret…
... . In our report you can read all about our experiences at ... /> We take a trip down memory lane to see what game ...what extra port for extra memory ? (256K, 512K, 1024K, etc.)I know that Pentagon uses some extra bits from port 7FFD for extra memory pging: - for 512K model, bit 6 & 7 of port 7FFD - for 1024K model, bit 5, 6…
... from port 7FFD for extra memory pging:
- for ... those bits for extra memory switching and if it ... / port DFFD for extra memory paging.
What is ... keep track of a memory bank number, by combining ... established port for extra memory, other than the Pentagon ...Techy Z80 questions****** Question 1 ****** Take the instruction SET b, (HL). This is broken down (in machine cycles) as follows (according to Microprocessor Technolo…
... the final memory address, based on IX and the read offset]< ... when does the Z80 read the opcode that would have ... the Z80 could access the memory while performing the IO, ... (HL) instruction: 4T to read the FD/DD prefix, 3T ... for the offset read, and 5T for the ...SPIN - debugger / fill memory / how ?I try to fill the screen with 00 value, but I don't get the expected result. - pause the game - debugger - hex numbers - fill memory block - fill wi…
...
- hex numbers
- fill memory block
- fill with 00 ...
- main memory
- start address - 4000
- ok
then
- view memory
- all screen data is ...Spectrum 16k Rubber KeyDoes anyone have a 16k rubber key spectrum they would be willing to part with? Just missed one on ebay (forgot about it) so thought I would check he…
Does anyone have a 16k rubber key spectrum they would ...SpeedloadersSince I read Lee Tonks' post about the speedloaded version of MM3 he did, I've been playing around with various speedload routines I found on TTFn & …
Since I read Lee Tonks' post about the ... will run in the bottom 16k of ram, or do they ...You want to read this. Oh yes you do.1) Go to [url="http://www.livepublishing.co.uk/retro/retro9.shtml"]http://www.livepublishing.co.uk/retro/retro9.shtml[/url] 2) Read to the very bott…
Sinclair Computers never marketed?What machines did Sinclair Research design but not put into production? I have previously thought that some work had been done on a Super-Spectrum,…
... is true but from having read some things said by Sir ... know more about the cheap 16k Colour Computer. Also in the ... /ql_sst.htm[/url]) calls this 16k colour machine LC3 previously I ... evolved over time? If the 16k colour computer wasn?t the ...this post is useless now that everyone has read it, so please delete it. this post is useless now that everyone has read it, so please delete it.
this post is useless now that everyone has read it, so please delete it.How will be the (real) new Speccy "thing"?I read about hundreds of cool and wacky ideas to get Speccy bring to new life. I know (and I adore) this new era of the speccy - new magazines, new g…
I read about hundreds of cool and ... 512 Kb, another with video memory that enhances the scrolling procedures ...Idea for a new feature to compliment a debugger in an emulatorI had an idea for an emulator feature yesterday. Don't recall having seen this idea before, but I'm sure you'll correct me if it has. :) In that cas…
... sort of graphical representation of memory and see where the game ... could change between, adresses being read from, written to and finally ... pixel is equal to one memory address.
It would make ...HELP 4532 or 4864 RAM wanted !Hello My real spectrum fell off yesterday I know that one RAM memory chip is out of order There was 8 X HM4864P-2 but I saw in the Spectrum schemati…
... /> I know that one RAM memory chip is out of order ... are already here to set 16K of RAM so 32K are ...Hardcore Spectrum Collectors ( Mr Woodcock please read )Hiya all Last night in the chat room we had a good ol' discussion about speccy collectors, what we had, what our set ups were... what we look like! …
... for one would love to read about other collectors, how and ...How to apart a 16K from a 48K?How can I understand that if i have a 16K or 48K? Thanks
How can I understand that if i have a 16K or 48K? ThanksInterruptsCan someone help with providing some info or a link about IM 2. I know I need to create a vector table and want to store this as high in memory as po…
... store this as high in memory as possible to keep it ... way. From what I've read there is restrictions on where ... can go. I am also read conflicting views on its size ...Data at the top of memoryWhilst viewing memory locations on the "Spin" emulator I noticed data starting at 65336. Does a "real" ZX Spectrum 48k use the top end of available m…
Whilst viewing memory locations on the "Spin" emulator I noticed data starting at 65336. Does a "real" ZX Spectrum 48k use the top end of available memory ? If so, what is the last memory location that is safe to use ?Spectum 16kHi Is it possible to play a 48k spectrum game on a 16k spectrum, if not is there anything i can purchase to boost up the computer to play the game?
Hi
Is it possible to play a 48k spectrum game on a 16k spectrum, if not is there anything i can purchase to boost up the computer to play the game?Something to read....Out now - Issue 64 of [url="http://www.wayoftherodent.com"]Way of the Rodent[/url]. Number 64 has a "64" theme - but before you start gagging, we ha…
... . You might also want to read the "Utter History of the ...Anybody read e-books?Does anybody read e-books? I bought a Palm Zire 31 two weeks ago and started reading them. There's a lot of fantasy and sci-fi available out there. …
Does anybody read e-books?
I ... . around in your pocket to read anywhere you go. :)Emulator Dev: Memory Use When Loading RZXsHi, I am currently working on a port of an emulator to a system with limited memory (64mb). I am running out of memory when loading large snapshots …
... to a system with limited memory (64mb). I am running out ... of memory when loading large snapshots (ie ... let me know how much memory is needed to decompress a ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... out in an easy to read style
Character ruler ...
Multifunctional Watches - watch memory addresses, variables, expressions, sysvars
Memory Map which shows the spectrum ... for sending Speccy display memory to the PC screen< ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... out in an easy to read style
Character ruler ...
Multifunctional Watches - watch memory addresses, variables, expressions, sysvars
Memory Map which shows the spectrum ... for sending Speccy display memory to the PC screen< ...
