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Read Data from memoryHi there. Not been on this scene for a long time. Does anyone know how to do a routine to read data from memory(peek..etc) rather than using lines of…
... to do a routine to read data from memory(peek..etc) rather than ... using lines of data in basic...
30 read a(f)
40 next f
50 data 1 ... -
Britsoft - Read-Only Memory Publishing"Britsoft" by Read-Only Memory Publishing is their latest book charting the rise and fall of game development in the UK from the early 80s to the end…
"Britsoft" by Read-Only Memory Publishing is their latest book ... />
Anyway, you can now read a wee extract of the ... -
Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …
... characters. In order to save memory, and since the maze it ... />
-Create a new numeric data array ( m(88 ), for eg ... and PEEK to store the data in the array, but I ... />
-Create a routine to read data from the m array and ... -
128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... my head around the memory contention issues of the ... extra memory. I've searched the forums and read the ... I can understand that the memory is divided up into ... to access the screen data which is in the ... 16K range, either to read data or execute code, then ... -
SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…
... matter where PC is in memory:
[code]
... a condition that reads memory, this can be done ... debugger to specify a read from memory. The address needn' ... on its own without checking memory / IO status but ... way to mask off specific data in a condition:
... -
RUSSIAN SOFTWARE and real ZXRussian ZX games is writed on russian ZX clones and support hardware feature TURBO OFF ( for ZX clone ZS SCORPION ). Russian ZX clone ZS SCORPION use…
... for memory paging. Read of this ports is not supported and CPU read data ... bug - after read port #7FFD will ZX crash (data from floating bus ... port data from floating bus (can't be use)
Read port ... -
48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…
... a bit of a tangled memory map at a chip ... although it doesnt prove the data integrity, just that the ... CPU to toggle all the data, address and IO pins, ... the 9000 allows you to read data from an address range and ... chip has a single data pin which connects to the ... -
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…
... ;2 - DISPLAY ADDRESS AND MEMORY CONTENTS IF DATA CHANGES
;3 -
MEMORY LOCATION (HL) WITH DATA IN B
... AGAIN_READ
IN A, (5) ;READ DATA FROM CONTROLLER
AND $01 ... (to save to I2C memory for removable storage)
... -
harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…
... not separate the program memory from the data memory like on the pic ... of program memory. this is basicly paged in with a read and ... /> bank2 : 64k of data memory any writes to memory and reads that are ... more data with no need to worry about paging in extra memory ... -
Fuse tests - INC BC causes contention delayHi all, In the FUSE test suite it has the following for the output of opCode 0x3 (INC BC): 0 MC 0000 4 MR 0000 03 4 MC 0001 …
... one of MR (memory read), MW (memory write), MC (memory
contend), ... PR (port read), PW ( ... is the byte written or read. Missing for contentions.
read the memory to update the ... -
48K Memory MapHi, I'm having some trouble understanding the top of the 48K Memory Map. From reading elsewhere I have this as the memory map: 0 to 16383 - …
... the top of the 48K Memory Map.
From ... />
0 to 16383 - Read Only Memory
16384 to 22527 - Display ... br /> 23755 to 65367 - Available Memory
65368 to 65535 - ... area '23755 to 65367 - Available Memory'
Also what ... -
Tutorial: Using UDGs in SpecBASSpecBAS is capable of using graphics mode, in a similar manner to the original Spectrum. Like most things though, the extended nature of SPecBAS's ab…
... /> Which displays the currently held memory banks. Because the original Speccy ... you can create your own memory banks and POKE/PEEK them ... why we have to manage memory differently in SpecBAS - with ... value is a - from the READ data.
Press CTRL+ ... -
How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…
... is no different - the memory contains the information and instructions ... is:
Read some memory, perform an instruction to do ... the data that makes up the screen is stored from memory ... to read an instruction it gets the contents of the memory ... -
Z80 core testing ?OK, my z80 core is almost finished (apart from RRD, RLD, and block instructions except LDI,LDIR,LDD,LDDR). I run the 48K rom and hurray, it resets co…
... lines specifying the initial memory setup. Each has the ... of MR (memory read), MW (memory write), MC (memory contend), PR (port read), PW ... /> is the byte written or read. Missing for contentions.
... specifying which bits of memory have changed since the ... -
unused assembler commands?Z80 processor has commands like OUTI OUTD OTIR OTDR INI IND INIR INDR.They deal with sending /reading bolcks ofinformation to ports. The problem is, …
... , it's useful for reading data off an external device (such ... disk or microdrive) into a memory buffer. The DivIDE interface is ... only, so you can repeatedly read data in with INI / INIR without ... -
Little character trouble with BASinWell, I'm having some trouble loading fonts into the speccy with BASIC, using BASin r13 for an easier job. When I run code, such as this example... …
... the Spectrum ROM, this is READ ONLY MEMORY. You should be POKEing ... it to memory.
What you need to ... 64767: READ A: POKE F,A: NEXT F
70 DATA 0 ... ,0,0,0
80 DATA 56,44,44,44,60 ... -
NEW games for you chaps (and girls too) ;-)Okie, did some .TAP versions of NEW original games that were only released on TRDOS disk format. Some of you might have seen some (one or two are eve…
... doesn't use 128K memory or have a separate ... HL,CF00 ;read to $CF00
CALL 3D13 ;read data
JP ... /> HL $66FF Read data here
DE $0109 Read from track $01 ... $09
B $69 Read $69 sectors
memory is at $66FF (26367 ... -
I/O contention model questionHi everyone, Sorry for my poor english. Together with a friend we are working on ZX Spectrum 48k implemented in FPGA. We have found bug in the Spect…
... want to read memory. ULA puts on the bus proper data (from keyboard ... cycle. ULA is about to read from memory. It doesn't stop ... -
Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …
... characters. In order to save memory, and since the maze it ... />
-Create a new numeric data array ( m(88 ), for eg ... and PEEK to store the data in the array, but I ... ]
-Create a routine to read data from the m array and ... -
Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …
... . In order to save memory, and since the maze ...
-Create a new numeric data array ( m(88 ), for eg ...
-Create a routine to read data from the m array and ... not consume 88 bytes of data, but a little over ... into 88 bytes of reserved memory area (e.g. just ... -
Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... CODE files, and can be read into memory fine under BASIC. The ... screen.
Pools Data:-
I think this may ... , and after the main game data is loaded, the tuner program ... SAVE routine, rather than turbo data, then this tuner program could ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... possible: you'd have to read memory 8 times faster, and ... per 8 pixel long memory cell. With the memory "ninety degrees" ... 1 T-state per memory read from screen memory (something like 250 ... for the memory, read the memory and then do something with the data you ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... missing some required statements (eg, READ/DATA/RESTORE should be there) but ... a bit about the dynamic memory allocation used in the strings ...A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... missing some required statements (eg, READ/DATA/RESTORE should be there) but ... a bit about the dynamic memory allocation used in the ... ).
[/QUOTE]
The memory heap used is a very ... blocks (initially one single big memory block).
The ...A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... replaced easily by initializers. READ/DATA/RESTORE can implement a kind ... blocks (initially one single big memory block).
[/quote]
... allows blocks of available memory to be added to the ... is relatively rare. The memory usage pattern in Basic is ...Handling RST8 on a +3Well, I've come to that bit of my project that I wasn't really looking forward to (because I don't understand enough about the ZX BASIC ROM) - extend…
... , the ethernet chip is memory mapped rather than I/O ... a FIFO rather than a memory mapped buffer).
data to receive, then INPUT# to read the ... make sense to try and read data off it, and you ... one where we got data, the difference between a ...Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... screen RAM and pushing the data onto it, although this requires ... POP-reading case (when you read data by POP then write it ... occurs, two bytes of source data will be corrupted (will replaced ... second copy of whole source data in memory, and restore those two ...Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…
... , so I was trying to read data when it wasn't ready ... ...
[*] Fuse's multi-sector-read support was written by me ... curious fragmenting behaviour of flash memory took effect and pushed the ... to issue another read sector command" in the data stream itself. It ...Trouble compiling my BASIC programI've been trying to get a compiled BASIC version of Swift Turtle with no luck so far! I first tried MCoder 3 and it [i]seemed[/i] to compile the prog…
... a no-no, and using READ/DATA is strongly not advised.
READ/DATA and manage your own data storage using PEEK ... and it's just a memory issue. Keep things small or ...
