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A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... up in space that the newest versions of zx basic use ... to variable ZXBASIC_MEM_HEAP inside ZX BASIC's library code, but this variable ... end of memory? Surely any space > 32768 is uncontended? ... this would limit the memory space available for the compiled ... -
Hidden Spectrum emulator discovered in Goldeneye (N64)Commence ewgf's mind being blown in 3...2...1... [url]http://news.ycombinator.com/item?id=3770288[/url] [url]http://www.therwp.com/forums/showthread…
... a ROM routine or system variable in any of my Spectrum ... (the BASIC programming language, functions for loading from and saving to cassettes ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... all spaces. the white space exist, it's not ... only space between 2 nibbles (4 ... set 0000010, it make variable frequency, and variable duty cycle
... )
All basic loading scheme encode 4 bits ... that :) [/quote]The basic load code from audio is ... -
Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …
... attributes shouldn't change between saving & restoring (as the ... variable isn't used when a program is running. The BASIC ... the attributes to a string variable.
[code]
... code]
[code]
----- BASIC version
DEF FN p ... -
Screen2StringFurther to writing that BASIC one-liner to redirect CAT to a string I thought that I'd do a general redirection routine for anything which normally p…
... with a little bit of BASIC trickery (using the 'R' channel ... can't actually open from BASIC, but by pretending that it ... be sent to a string variable when the redirection function is ... appends them to the string space pointed to by the s ... -
What annoys you about SpecBAS?Ok, here's another direction for me to go in - I'm almost done with SpecBAS, there's very little left to add. So... What don't you like about it? Wh…
... its easier to port old basic programs.
[/quote]
variable list, program trace etc).
saving it as a bank.[/QUOTE ... -
INKEY$ giving me troubleHello, I have been using BASin (great program by the way...) Sad though it seems during the typhoon here I have been re-learning my spec-skills an…
... 35, but if you're saving space you could make the test ... can play back entirely from BASIC without requiring machine code:
40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... created below basic
; so look at the system variable PROG
; extra space stored earlier
ld de ... start of the
; extra space becomes the offset, stored
space for some
; variables ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... br /> LD BC,0x0005 ; Make space
CALL make_room ;
... RST 10/be used in basic
di
... a,(characterno) ; getscharater from charterno variable
sub 32
...WibbleBibble's Basic threadHi in an attempt to keep my questions from spamming the forum. I think its better to put them all in one place. Thanks everyone so far, I feel I am …
... an array whats faster for basic to work with a array ...need a new method for m/c parameter assignmentI've been using a variable length function of the form: "FN a$(a$,a[,b...,z])=STR$ USR md" to search a data table and return a string result. By putt…
... and populate a separate array variable. For it to be a ... standard method, in addition to saving space the new function has to ... it slower. I'd considered saving the FN address when the ...smooth movement in basicWas trying to figure this out myself but i would like to be pointed in right direction now :-). How do I make something move in Basic without gettin…
... frames to 3 frames the saving is only 0.14 second ... than the BASIC as well, and takes up more space (85 bytes ...More memoryHi all... can anyone help, Is it possible to get more memory for basic pref' in Basin.... 40 odd k is just not enough !
... giving you 7kb more for BASIC. That's the only spare ... 're restricted to single-letter variable names as the technique involves ... FN variable list starting at 16384.
The conventional space can ... reduce the size of the BASIC is to define literals as ...More memoryHi all... can anyone help, Is it possible to get more memory for basic pref' in Basin.... 40 odd k is just not enough !
... strings" where the space allocated to the variable may change; the ... copy of the variable and the old space reclaimed, even if ...
Here's a little BASIC routine which locates variables; just ... PRINT INVERSE 1;"SEARCH FOR VARIABLE"; INVERSE 0;": of Type:"':< ...More memoryHi all... can anyone help, Is it possible to get more memory for basic pref' in Basin.... 40 odd k is just not enough !
... , or embedded in BASIC as explained in "saving time populating large arrays ... DATA array:
REM s = space used in DATA array header ...Help! Experts in BASIC/ASM, Hardware, in-game screenshots needed!There are several games which are too complicated for me to get the in-game screenshot. If you guys could help me, the Spectrum community would appre…
... option. To get back to BASIC cleanly, load the snapshot, ... menu to return to BASIC, then POKE 23756,1 ... snapshot which it's saving from is messed up. ... array can be saved from BASIC, then after a plain ... stop numbers, then pressing Space will go through the pages ...Newbie Spectrum developer advice ....Hi, Im new to the site and to spectrum developing - well, not quite, I wrote Spectrum programmes in Basic 30 years ago but then went off into the wo…
... becomes unavailable for the main BASIC program unless you're ... the extra RAM pages from BASIC without crashing it, except ... the extra memory from BASIC, apart from saving extra BASIC, CODE & ... of number arrays; using short variable names; removing REMs. For ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... , therefore saving tape loading time and - even more important - space in the ... present than writing a shorter BASIC "housekeeping" program. I guess I ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... , therefore saving tape loading time and - even more important - space in the ... present than writing a shorter BASIC "housekeeping" program. I guess I ... will need to adjust your BASIC program accordingly:
[CODE] 10 ...Disabling the +3 disk buffer; yes, but how?I would like to disable the +3 disk buffer in order to retrieve those 4K from the machine's RAMdisk. By reading the computer manual and some posts on…
... in fact call the 48K-BASIC ROM, which would almost ... the day is to reserve space by doing a CLEAR 48999 ... br /> LD A,($5B5C) ; System Variable BANKM which contains the last ... now page back to the BASIC environment:
[CODE]
...Keyboard TrickI know how to use the multi key in BASIC with IN you can get the keys [QUOTE]IN 254+256*(255-2^K)[/QUOTE] K is the keyboard's half row, comes from …
... [/code](in ZXBC, in Sinclair BASIC this is not possible that ... />
On initialisation use a variable to read the start value ... />
99 REM B to SPACE READ AND WAIT FOR KEY ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... change place in address space, but that they take ... 's simply a 'disciple_memswap' variable that is:
[LIST ... same situations as the 'disciple_memswap' variable.
[/LIST]
< ... the disciple_rombank variable that we had entirely. Saving the DISCiPLE ...Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... to it, even a very basic form of LZ77 might do ... do not waste too much space. Otherwise, you write bit 0 ... length. Better compressors would use variable-bitlength codes for both of ...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…
... where paging was disabled before saving and I would really need ... =start snap with rom1(48 basic)
SPACE=cancel changes+start snap ...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... school who actualy programmed in BASIC all the rest were the ... money could afford (you try saving 12 quid when your allowance ...
[code]
2 Variable not found, 0:1
Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... allowed a jump back to BASIC if a program had locked ... the other program, plus the BASIC environment might not have been ... would still not be possible. Saving your code frequently was the ... it wasn't worth wasting space on it.
