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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 ... -
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 ... -
About z88dk and autoexecsThis weekend I was playing a little with z88dk C cross Compiler. Amazing tool! I have three questions: 1- Does anybody know how to change the initia…
... was playing a little with z88dk C cross Compiler. Amazing tool ... -
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 ? -
Installing Z88DK Z88DK INSTALLATION Z88DK is distributed in two parts. The first part is the platform independent bits (including source and z80 libraries) and th…
... path, enter
"/cvsroot/z88dk". Underneath these fields are a ... are associated with the z88dk module "/cvsroot/z88dk" and will be ... of the z88dk repository in c:\CVS\z88dk. A z88dk folder
z88dk\include), the three COPTRULES, ... -
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 ... -
z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... start to program games with z88dk, but I need a good ... -
Interface 1 Memory Map(I'm not sure which section this post should go in, but here seems as good as any) Since the Interface 1 ROM is only 8k long, does anyone know what …
... appears in the 8-16k memory range when IF1 is paged ... -
Wanted: Gamecube memory cardI'm looking to buy a gamecube memory card. I don't need a large capacity memory card but a card that can save information for upto 3 games will do. I…
... looking to buy a gamecube memory card. I don't need ... a large capacity memory card but a card that ... they own or a used memory card (in working condition of ... -
Wide sprites in SP1 + Z88DKThe calls to sp1_CreateSpr(); and sp1_AddColSpr(); seems to have changed. Could someone please offer help in how to create a wide (wider than 16 pix…
The calls to sp1_CreateSpr(); and sp1_AddColSpr(); seems to have changed.
Could someone please offer help in how to create a wide (wider than 16 pixels) sprite (preferably starting from SevenuP) using Z88DK and SP1. -
Emulator with ability to watch memory?Hi! I'm looking for an emulator that can give me a realtime update of an address in memory. I've tried Fuse (on OS X) where I can set a breakpoint i…
... update of an address in memory. I've tried Fuse (on ... -
Where do you keep your tape images? CD, DVD, USB drive or Memory Sticks?I have my most beloved games (well over 300 titles) on my SD memory card. What's your type of archive medium?
I have my most beloved games (well over 300 titles) on my SD memory card. What's your type of archive medium? -
Memory Map/ContentionHi I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scrolling…
... this a correct map for memory contention?
Address Size ...
5B00-7fff 08k Contended Memory
8000-FFFF 32k Fast ... Memory (well normal memory really :) )
Cheers ... -
Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... ?) behind ULA's spectrum screen memory interpretation?
6144 bytes ... behind this implementation? Why screen memory isn't interpreted continuously?
128K memory testingDuring a mad half hour I decided to write a little memory tester program in BASIC using the information from the 48K service manual. Now I was wonder…
... decided to write a little memory tester program in BASIC using ...Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... page 2 due to the memory contention issue).
How ... maybe all!) of it using Z88dk. The advantage of this seems ... used z88dk (preferably with the +3, although info on the 128k memory ...Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…
... supported as a target by z88dk, making it easy to write ... partitions provided for fast virtual memory
[/LIST]
[U ...Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…
... makes me wonder: How much memory does a Speccy have, included ... the memory used by the machine itself ...Retargetting the Z88dkWell, I'm asking here because it's come up before, and I assume someone here might know the answer... I'm trying to retarget the Z88DK for the Z80 b…
... 'm trying to retarget the Z88DK for the Z80 board I ... ', found at [url]http://www.z88dk.org/retarget.html[/url] . At ...Issue 1 32K Memory Upgrade neededHi folks, as the title suggest im looking for the original sinclair memory board to make it 48k from 16k. Any other form will do or even instructions…
... looking for the original sinclair memory board to make it 48k ...List of POKEs and PEEKs/cool memory addressesI was wondering if there was a list of cool memory addresses to POKE and/or PEEK. For example, I know that PEEK 23674 tells you how long a Speccy has…
... was a list of cool memory addresses to POKE and/or ... Spectrum ROM Disassembly', but for memory addresses instead of assembly routines?Vague memory of a gameHi all, something's been bugging me on and off for ages. I once had a speccy game that I can't remember the name of. Sadly I can't recall many of the…
... a bit hazy, but my memory isn't what it was ...Laptop memoryIf anybody is interested before it goes on Ebay.... 2 x 512MB Hynix PC2-4200 memory modules Hardly used - I upgraded the memory a couple of days af…
... x 512MB Hynix PC2-4200 memory modules
Hardly used ... - I upgraded the memory a couple of days after ...Running code from the display memory?Is it possible to run machine code from the memory area used by the display file? If you were really out of memory and some part of screen is not u…
... run machine code from the memory area used by the display ... you were really out of memory and some part of screen ...Help! z88dk and Linux!Hi! i've got a problem with z88dk. i've downloaded version 1.6 for linux, i follow the instructions but it give me fails for the compilation. could y…
Hi! i've got a problem with z88dk. i've downloaded version 1.6 for linux, i follow the instructions but it give me fails for the compilation. could you help me?
Thank you!:-)Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... way to disable all onboard memory - like ROMCS but for the ... whole memory map?
Translating the ... piece of on-board memory and map external memory over it. CP ...Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... that draws plot graphics into memory buffers from which SP1 can ... the current cvs version of z88dk because of several additions and ... make people familiar with how z88dk C works and to create ... some exposure to z88dk's spectrum libraries.
z88dk and MacOSXThis is a real noob question, and I apologise if it has been asked before. I am looking to develop some software for the Spectrum, using the z88dk a…
... for the Spectrum, using the z88dk as this would allow me ... out how to install the z88dk on my Mac. Could someone ...
