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Spectrum - Show in London area, April 2012Hello Folks, we have been already discussing in another thread. Here I simply want check the interest.So the question is easy: If we will organize a …
... /> we have been already discussing in another thread. Here I simply ... for the 30th anniversary in April 2012 in London area, will you come ... consist of several workshop, exhibition area to show new an old ... -
where is border/ink, etc stored in rom?hi, i just wondered where these were stored in rom and how i change these?
hi, i just wondered where these were stored in rom and how i change these? -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... (a pointer to which is stored in variable 's' above) and 9 "struct ... play into the main memory area.
Also to add ... still not a problem because in properly running code, stack operations ... important to reserve the same area in the music bank for the ... -
About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... uninitialized (the latter are stored in an area that is sometimes called ... global data. The uninitialized area is supposed to be zeroed ... code, to initialize that area. Obviously that's crazy ... single asm file containing the variable locations.
... -
Japan Tsunami AppealAs some of you will be aware, I've been tinkering with an open source version of SE Basic that could be distributed with hardware without infringing …
Well in some positive news after 12 ... palette data (to be loaded in a 6976 byte chunk at ... palette to whatever values are stored in that area. -
BASIC Bug: DEF FN after REMHello all, Having mused the Spectrum ROM disassembly by Drs Logan ad O'Hara, I wondered about how good ZX BASIC was at locating the DEF FN when call…
... , that floating point number is stored in variable a and the FP value ... -
Chompston Mazes in SpecBASAfter the discussion in ASH-II's Pacman thread, I checked out the link there about generating 2D Pacman style mazes. This one was quite good fun, …
... ,x$,y$,d$,l$="":
DIM m(mw,mh),dx=-1 ... ,0,1,0:
DIM dy=0,-1,0,1 ... number at that position in e$ in a new variable, d$. We then ... LET n=LEN x$:
DIM x(n),y(n),d ... probably just use the information stored in the strings directly to build ... -
Speed of variables vs. POKE/PEEKGreetings, I'm sure I could probably find this out after careful study of the 48K ROM disassembly, but I was wondering whether someone already knew …
... over? Or does the variable get trashed from the ... variable, it puts it back to the top of the vars area ... a = 1
20 DIM b(100)
30 ... issue then strings which are variable length.
... how the BASIC variables are stored in the basic program (see ... -
Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... br />
100 DIM C$(16): DIM E$(16)
101 ... inc hl ;skip over next variable letter
ret
stored at (HL)
... address, DE=address in ANSWER area
push de ... -
Brain 8I am glad to present my new "experiment" in Sinclair Spectrum 48K BASIC. https://drive.google.com/file/d/17_wCFWaAl5diIVt3rPLTbKhxDmPmYmOs/view?us…
... the position of the variable i$ in the vars area; since I am ... LET i$="..." would put this variable at the end of variables ... to define positions and attributes, stored in a$,b$,c$,d$ variables ... able to avoid using any DIM statements for all the various ... -
RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... /> ; so look at the system variable PROG
dec hl ; move ... space becomes the offset, stored
; in HL
ex de, ... destination
and $f0 ; mask area used by new character
and $0f ; mask area used by new character
Printing UDGs in BASICAfter looking a little through Winer Milly's code, it struck me that I might be able to speed up my Cybernoid editor by replacing: FOR a=0 TO 31: PR…
... # that switches to UDG mode in the PRINT statement?
in a Text Editor (TextMate with ... all the tile graphics stored in memory location in a UDG type format ... . Currently I shift the CHARS variable ...How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... routines which do the job in thirds (as is
how ... the display is mapped in memory), which can
clear ... the screen
pixels are stored in memory) then that would be ...+3dos BASIC Headers - Char and Number ArraysHi. I'm almost ready to release the first beta of "3eExplorer" my utility for extracting files from a +3e HDD/CF image. It's actually going quite w…
... files from any user-area of any partition to ... due to .TAP limitations). In theory it even works for ... as I can tell in the +3DOS file header ... is the same data as stored in a .TAP file...[CODE]+ ... Param1) should be the variable of the stored data - for example, ...Packing numbers in as least memory as possibleI am writing some code for drawing vector lines etc. on the screen. These need to be stored in memory and I want to pack them in a smaller area as po…
... be stored in memory and I want to pack them in a smaller area ... silly, but could this be stored in one byte instead of two ...What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…
... short: what pages are in use by +3DOS while ... began using the TAP version stored in WOS. This version has ... each block to be loaded in "extended" memory. To ... so I had a spare area of 4K.
The ... nearly all the available memory in all pages) succesfully? Do ...Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…
... the stack should be in an area which is not going ... run, then the system variable at 0x5b5c (23388) must ... . The normal screen is in bank 5, whilst the ... shadow screen is in bank 7. Note that ... real machine which become possible in emulation.
...Un-PLOTting in the #0 areaHow do I go about un-PLOTting in the bottom 2 lines. I am aware the ROM PLOT routine only works in the top 22 rows, so how would I go about depletin…
... I go about un-PLOTting in the bottom 2 lines.
in the top 22 rows, so ... about depleting an energy bar in that area? (#0 AT 1,2 ...Un-PLOTting in the #0 areaHow do I go about un-PLOTting in the bottom 2 lines. I am aware the ROM PLOT routine only works in the top 22 rows, so how would I go about depletin…
... I go about un-PLOTting in the bottom 2 lines.
in the top 22 rows, so ... about depleting an energy bar in that area? (#0 AT 1,2 ...SpecBAS 0.830 Released!Hi guys - A new official release of SpecBAS has been released. The full changelog is below, but for now here's the download: [url]https://sites.goo…
... be. Now, UDGs are stored in ASCII positions 128 to 255 ... 35 times without needing a variable to keep count
... /> Omitting a loop-control variable in FOR EACH caused the editor ...
DIM SPLIT arrays created empty arrays in some circumstances< ...Are line numbers considered the first statement in the line?I'm trying to understand how BASIC variables are stored in memory using the BASIC Programming manual and am puzzled by the results of the control var…
... understand how BASIC variables are stored in memory using the BASIC Programming ... the results of the control variable when storing a FOR ... NEXT ... the FOR NEXT loop control variable this number is always 2 ...CODE instruction in array$ PRINTSo I'm still plugging away at BASIC and have found a line of code (another!) that's really puzzling me. The line is as follows: PRINT A$(P+Q TO P…
... $(P+T)),
The variable values are:
P = ... />
The A$ values (in memory, decimal) are:
478 ... 481 plus the length in 478 (which is 8 ... 's a CODE instruction in there and I don' ... a mistake in reading how the values are stored in memory. Can ...MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program
... that by PEEKing the system variable PROG and add on offset ... on where REM is located in memory).
Also, ... Z80 compete to access memory in that area. The ULA always wins ... down. Any program in that area (such as one stored in a REM statement ...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…
... of the UDG set is stored in the same way at ... br />
This system variable contains various flags controlling the ... its code being stored in 23560 (the LASTK system variable) and bit ... respectively. POKEing this system variable will affect the appearance of ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... ; // signed horizontal speed in pixels
char dy ... file. The C variable "frame01" will ... and the C variable "frame02" will point ... the system variables area. Now since ... and this is stored away in variable "temp". The ...Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... a header bytes. Since the area is stored in the "spare" 8K following ... requires temporary storage at the variable CURP (or storage at that ... switch the screen in. If the
GRABed area
[/QUOTE]
area.
So for ...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…
... on the Spectrum strings are stored in RAM so we *can ... gets mapped into an area of memory marked as ... looking for common substrings. In your program, it found ... pointer variable can. You can index in array as in s2 ... s2 is not a variable that can be incremented; ...
