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Flip Screen vs ScrollingWhich do you prefer? I've always liked flip screen games but I had a C64(spit) owning friend who hated them with a passion.
... 't mean anything really. Just read 'stored'.
... time at the expense of memory.
On ... to fetch the graphic data one byte at a ... then write it back into memory. [I]R-Type[/I ... to combine foreground and background data in real time.
... -
New To Group....Hi All, A quick introduction as this is my first post. I am a Scarborough, UK based chap who is quite heavily into retro computing, more specificall…
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I tried the poke/peek trick (now, why didn't ... rules out memory issues, which in turn, from what I read, points ... -
Zetr0's Catchup Time (hardware / software)Hello there my fellow ZX'ers I have been soaking myself into the "world of spectrum" and more I do, the more I realize I have to play catchup.... a …
... (forcing the adapter in 8bit memory mode) this would allow full ... +2e rom allows me to read/write to the adapter. I ... to a 48k and reading data from the hard drive :)
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... byte (4 cycles) and all memory accesses are indexed. Even though ... random access to random data structures (most data structures can be ... . Reading will require a read pointer in additional to the ... the point the keyboard is read, signals should be generated ...Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... via this interface: read registers, write to memory, load from memory, set breakpoint ... standard front ends, such as Data Display Debugger to debug C ...Is this the infamous Dead CockroachCan anyone help me. I have an issue two spectrum that I want to list on ebay, but I want to know if this has the dead cockroach ULA fix. I would have…
... , which made their read or write data bus access collide with ... to use the more conservative memory contention model instead of ... contention model by forcing the memory lines to particular value ... makes it a particularly fascinating read.
Hope that ...Assembly help: EQUCan anyone explain in duffers language the purpose of the EQU term in assembly? I found this info in another thread: EQU: Equate a name to a specif…
... /> ENDM
MACRO fread ; read in
defb 0x1a
ENDM
MACRO fpeek ; PEEK
defb 0x2b
ENDM ...
MACRO fstk ; stack data
defb 0x34
ENDM ... the code much easier to read.
More on the ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... :
READ V: POKE A,V: NEXT A:
DATA CODE "A ... />
60 POKE 23563,PEEK 23675: POKE 23564,PEEK 23676:
IF ...SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... 1 TO 2
40 READ a: LET n$(o,n ... FOR n=1 TO 12: READ a
70 LET n ... code]
Keeping the DATA statements in memory is wasteful so it ... is better to LOAD the DATA ... 20 CLEAR: LOAD "note table" DATA n$()[/code]
To select ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... DEF FN p(a)=PEEK a+256*PEEK (a+1):
DEF ... POKE nl+5,FN d(PEEK da): POKE nl+27,FN ... d(PEEK (da+9)): LET dm=da ... +29 STEP 22:
IF PEEK dmDivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... /> DIVIDE+ use extra memory 512kB controlled via writing to ... port work correct. DIVIDE memory paging also work correct. ... memory) then KEMPSTON (thanks to incorrect kempston port decoder) collide with data ... (must return data only if Z80CPU read from joystick port ...Help with custom loader neededAs people here became active recently about MakeTzx and tzx format in general, I have thought that I would post it here. I have some .wav recordings…
... Szybka Pamiec Tasmowa (Fast Tape Memory in English) and was comercially ... is about 3 kB of data loaded but tzx file is ... it if he wishes to read it :) And if anybody is ...yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... repeating this code we can read eight bits with almost no ... /> ;; 23 t-states per bit read
;; 115200 baud requires 30 ... enough we could theoretically transfer data to and from speccy at ... to store result to memory and increase memory counter. but when doing ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... particular file containing the game data (.tzx, .z80, whatever). ... work directly on "roms", read them byte by byte and ... about emulation of Z80 microprocessor/memory, they give full list ... screen)? Which asm instructions and memory regions are responsible for it ...Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... /> read(fd,&type,1);
/* Get data len ... */
unsigned short datalen;
read(fd,& ... br />
/* and data block... */
unsigned char ... (fd);
/* Free memory */
free(pblock);
...Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... );
/* Send data len */
unsigned short datalen ... O_SYNC);
int bytes=read(ofd,(void *)pblock,datalen);
printf("Read file %s, bytes %d ... close(fd);
/* Free memory */
free(pblock);
< ...Question about divide +Hi A friend has sent my a faultly divide + to see if I can repair it. If I use this divide+ with a spectrum 48K (That works perfectly with my stand…
... Z80 files, although it's read-only - and ESXDOS, which ... allows read/write access but is still ... 512kB ram = 1MB memory. Divide Plus use compatible memory paging with MB02 ... on through edge connector. As data protection (for possibility connect ...Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... BASIC? You obviously haven't read:
[thread=33911]Copying a ... you reference any area of memory from BASIC as though it ... don't have to use PEEK & POKE - and it's ...Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... "A"+8: READ V: POKE A,V: NEXT A: DATA CODE "A ... /> 60 POKE 23563,PEEK 23675: POKE 23564,PEEK 23676: IF P THEN ...Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... /> 160 POKE 23563,PEEK 23675: POKE 23564,PEEK 23676: IF P THEN ... "A"+8: READ V: POKE A,V: NEXT A: DATA CODE "A ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... 6912 bytes of the Spectrum memory map, starting from address 16384 ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... partitions the Spectrum's memory into sections (those familiar ... contended-code, code, data, sprites, screen data, sound data, variables etc.
memory use - You know the size of the variable/data ... It would be better to read addresses and locations
; ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... and introducing hand allocation of memory which is the whole purpose ... searching for the reference I read on the binutils mailing list ... and the variable to the data section.[/quote]
This ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... if you want to specify data at specific locations, and ... problem. Because of the limited memory of most z80 machines, being ... .
3. Code/Data sections? I can understand that ... around it. (For graphical operations (read: games) it's definitely nice ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... you can target the multiple memory banks of the 128k spectrum ... the only enforcement of a read only section would be ... section (a decompression of data from a compressed block preferably ... it. (For graphical operations (read: games) it's definitely nice ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... the system variable to read lastk as a char ... can target the multiple memory banks of the 128k ... have to declare sections read or write only and ... only enforcement of a read only section would be ... precompiled machine code + music data), and that block has ...Sneak Peak...Hi Folks, A sneak peak of the application I have been writing over the last few months (with a lot of help from this group, BASin and recently ZXDS)…
... from Spectrum books I have read over the last 12 months ... timetable data is compressed so that more can be stored in memory ... to list 9 rows of data which feels too slow.
Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …
... CLS:LET V1 = PEEK(31698)+256 * PEEK(31699):GOSUB 70: ... :POKE 23606,PEEK(23670):POKE 23607,PEEK(23671):RETURN< ... /> 110 BEEP 1 / PEEK(c),PEEK(c+1):LET c = ... V10 = PEEK(c)+256 * PEEK(c+1):POKE V10,PEEK(c+ ... know it also contains READ and DATA statements, so new code ...Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
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2. The contents of memory are compared to a database ... data in the entry "Data=", and POKE it into the Spectrum's memory ... starting at the address given in the data entry ... br /> Write=45320
Read=35102
Data=231,085
[/COLOR ...Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... is loaded into memory, and at what Spectrum memory locations to set ... br /> Write=45320
Read=35102
Data=231,085
data in the entry "Data=", and POKE it into the Spectrum's memory ... starting at the address given in the data entry ...
