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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 ... -
Best way to store vector images in Sinclair BASIC?Let's forget for a moment that Sinclair BASIC is slow. If I have a picture made entirely of vector images, what would be the best way to store that d…
... then always decrease the PEEK value with 128, ... DIM or DATA but as bytes in memory. Here's ... data using POKE and read data using PEEK. Up to 8Kb of data ... You can save your vector data using
[code]
[code]
LOAD "data" CODE start
[/code]< ... -
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 ... POINT, PLOT and PEEK to store the data in the array, but ... />
-Create a routine to read data from the m array and ... -
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…
... ribbons.
The PEEK test to determine if the ... bit of a tangled memory map at a chip ... although it doesnt prove the data integrity, just that the ... 9000 allows you to read data from an address range and ... chip has a single data pin which connects to ... -
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 - …
...
0 to 16383 - Read Only Memory
16384 to 22527 - Display ... /> 23755 to 65367 - Available Memory
65368 to 65535 - ... running '[code]PRINT (PEEK 23730+256*PEEK 23731)[/code]
... area '23755 to 65367 - Available Memory'
Also ... -
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 ... -
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 ... create your own memory banks and POKE/PEEK them should you ... why we have to manage memory differently in SpecBAS - with ... value is a - from the READ data.
Press CTRL+ ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
...
The best way to read the keyboard is reading the ... charactercode, making it possible to read UDG as characters. You make ... when you run out of memory. Alternatively, POKE 23608,255 ... data actually consists of.
10 LET A=PEEK 23613 + 255*PEEK ... -
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 ... POINT, PLOT and PEEK to store the data in the array, but ... ]
-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 ... br /> -Create a new numeric data array ( m(88 ), for eg ... POINT, PLOT and PEEK to store the data in the array, ...
-Create a routine to read data from the m array and ... into 88 bytes of reserved memory area (e.g. ... -
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/POKE. You ... and it's just a memory issue. Keep things small or ... -
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…
... multi dimmensioned arrays and READ/DATA chunks. But that doesn ... memory (the one in the DATA's and the one after being read ... your data just once and use from there using PEEK. ... slower to use PRINT PEEK 34733 than PRINT a ... (4, 3) because PEEK has to be interpreted ... -
Machine Code in 30 minutes - car gameWotcha folks, 30 years on and I'm still struggling with Machine Code. I'm going through the 30-minute tutorial on the Chuntey blog and it's all made…
... Manual is that we're 'peek'(ing) the Accumulator with the ... processor. This processor can read and write memory but can also communicate ... where you can send data (OUT command) or read data (IN command) from ... -
IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... will be [i]read[/i]ing data sent to it, ... that the Z80 has data that it needs to ... hardware.
A PEEK will result in something that ... /MREQ to perform a memory read request. A POKE will ... />
As some data is read-only, some is write-only ... -
Why can't you make a BASIC program as big as you want?Let me rephrase that. Is it possible using BASIC to write a program that can be multi part? In other words one that can LOAD lets say a story, in se…
... can use LOAD DATA to fill them in memory.
- Using ... upper memory to store the levels and read them using PEEK ... how much memory needs a MERGE or a LOAD DATA. I guess ... when doing a LOAD DATA (checking if the DATA loaded exists, and ... -
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 ... -
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 ... -
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 ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... REM as DATA without the , seperator and read it with PEEK, but I ... -
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 ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... this:
[CODE]
PEEK 23556
[/CODE][/QUOTE]
READ/DATA could be replaced with two ... PRINT PEEK 23618 inside the oneliner program straight after the READ ... on this side-effect of READ/DATA setting NEWPPC in many ...
