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esxDOS v0.8.5 released (with TR-DOS emulator)Yup, you read right! Now with TR-DOS emulation! More info and download here: [url]http://www.esxdos.org/[/url] Enjoy :)
... erase block size. So, even if esxDOS writes a 512-byte sector ... with the smallest possible erase block size and/or cache.
block writes (already planned) -
Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... same in its balloc library (block memory allocator) but it operates ... and a block is returned. Each slab has one byte overhead that ... -
Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
... line. It just loads the block images in advance, for the ... blocks, so you need one block for each possible combination of ... other. Which is 8 per byte, without counting either the loading ... -
Idk>le me browsing through some game's code >..... [code]61A8 F5 push af 61A9 3EFF ld a,FF 61AB D37F out (7F),a 61AD D33F ou…
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B4 (6218 ) = load a block of data into memory from ... (623e) = write the saved register block to the remote machine
block from the remote machine
B7 (6234) = read a byte ... /> B6 (624e) = write a memory block to the remote machine?
Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... . Especially if you determine what byte is being sent or received ... start shifting in the next byte. Not owning an IF1, I ... and does not have a block of memory on it. So ... going to have a one byte buffer at most at a ...Spectaculator BlogHi All, I've decided to start a Spectaculator development blog [URL="http://www.spectaculator.com/category/blog"]here[/URL]. Normally months (somet…
... commands:
-fill the memory block with byte pattern
- copy memory ...Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... br /> [code]
First block: 588h bytes
0000 ... with a single byte
dw address of byte
dw ...
Second block: 1B00h bytes. The screen.
block,
compressed. Expansion ...Tape loading - blocks with checksumThese were sometimes used for 128K games and had a searching / loading message, ie. Loading Block 08, then if a block didn't load right one could rew…
... load and save[/url]
Block.s contains two routine to ... save and load memory in block of up to 256 bytes ... . If an unrecognised block is found, it just loops ... the screen as 27 256-byte blocks, and load it back ...Tape loading - blocks with checksumThese were sometimes used for 128K games and had a searching / loading message, ie. Loading Block 08, then if a block didn't load right one could rew…
[QUOTE=jp;709634]It's not as forgiving as Bleepload - pause then rewind the tape for some reset fun... ;)[/QUOTE]
Was about to say the same. 131 byte blocks; presumably 128 bytes of data, 2 bytes for block id and 1 byte checksum.TommyGun with AGDHi everyone, I have been working with Jonathan to incorporate his excellent Arcade Game Designer utility into TommyGun. Jonathan has created a compi…
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Didn't produce a byte that made sense with AGD ... never got off the starting block.Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... derived from E (the low byte of the counter that counts ... data phase.
The block of code from 8600 (LD ... at 862C after loading a block of data permits a glued ... block with no pilot tone to ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... ld (ix+0),a ; store byte
inc ix ; advance pointer ... /> jr .read_byte ; fetch the next byte
.verify_checksum:
... . The turbo block is a generalized data block as described above ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... 's what the Generalised Data Block is for, crazy people like ... TZX file, turning a normal block into a four-symbol GDB ... 4 and 7 of each byte is to introduces some extra ...Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
... programmable. Speed of read/write byte can be set from 2tacts ... + 2T write then transfet each byte during 4 cpu tacts.
block from ZX ram to ULA ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... /pe,lp ; 10T Yup, the parity bit is the EAR bit ... me to (ab)use the parity flag in that way; though ... it) and thus alter the parity? Is there a way of ... read? Does setting the high byte of the port address to ...RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... create a screen-part-flag byte with the 6 parts which ... a certain way within each block of 2048 bytes. That's ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... :
Sentinel for next block of 255 bytes
255 ... at worst it's 1 byte every 255.Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... and c ; combine with byte being loaded (4T)
... and h ; combine with byte being loaded (4T)
... about using the parity of the byte read from port ... t rely on the parity of the read byte.
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... I was contemplating using the parity as per your idea, but ... 're right that the upper byte of the port address is ...MC LPRINT 23681Having problems with this routine to print large on the screen using LPRINT, it works ok in BASIC, but cant seem to get it to loop for some reason in…
...
and 0x37 ; Avoid the block of 0xff in the 48K ... , lp2 ; If zero, try next byte
ld (hl),a
ZX Spin kicking up a strange errorDon't know if this is a 'strange' error or not, but it refuses to load certain Z80 files stating: [B][I]This Z80 file contains a block that decompre…
... RAM as a single block which would unpack to ... later file but a data block has a length > ... a 30-byte header, then a 2-byte additional header block length, ... (repeated) a 2-byte data block length followed by a ... + snapshots have a data block with a "packed" length ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
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Checksums reside in 256 byte 1st block.
Patch pokes ...The Pros and Cons of "alternative" assembler syntaxContinuing from [URL]http://www.worldofspectrum.org/forums/showpost.php?p=720754&postcount=72[/URL] [QUOTE=u6c87;720754]But that wouldn't change if…
... use of abstractions such as block buffers, linear buffers, circular buffers ... use of abstractions like buffer, byte stream, linked list, sprite that ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... forward decompression, the last byte of the packed file ... bytes above the last byte of the unpacked file ... and the lowest address byte of the compressed file ... below the lowest address byte of the uncompressed ... Penetrator has a single code block at 0x8000-0xffff. I ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... forward decompression, the last byte of the packed file ... bytes above the last byte of the unpacked file. ... and the lowest address byte of the compressed file ... below the lowest address byte of the uncompressed file ... URL], and the final block is always a chunk ...
