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The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…
... 0, 65535 etc. and read back. Excellent. So the ... didn't intend to address the Microdrives on a ... which spun the tape, read as much sectors as ... 0xA0 with correct header checksum read elsewhere).
... the sector I intended to read but some surrogate.
... -
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…
... /> I think the emulator only read 16 bits, and not 32 ... -
Spectrum IDE Adpaters (Rev 3.1C)Hello my fellow WoS'ers I have been working away and have redesigned an old favourite the Humble 8bit IDE Adapter for the spectrum +3e. However thi…
... install a Harddisk device for read and write purposes on your ... you provide a prepaid self address envelope =)
[b] please ... -
Authored with z88dk or Boriel's ZX BASIC?It would be useful to be able to search somehow for games authored with either z88dk or Boriel's ZX BASIC. This was [URL="http://www.worldofspectrum.…
... for games authored with either z88dk or Boriel's ZX BASIC ... -
Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... /> DEC HL ; Decrement memory address.
CP H ; Have ... not.
;; RAM-READ
L11E2: AND A ; ... upwards
;; RAM-READ
L11E2: CP H ; Have ... -
Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... if you're not using z88dk.
You can use ... sp, ix
pop af ; read 16 bytes
pop bc ... -
Display file addressHi Folks, Could someone please help me. I seem to recall that the address of a given byte of the Spectrum's display file breaks down as row, column…
... seem to recall that the address of a given byte of ... -
Open and read a file using +3DOS in MCForgive me if this has been asked and answered before, I've spent a fair few hours searching the forums and looking for books on the subject, all wit…
... minimal code to open and read a file, using the +3DOS ... of what areas DOS OPEN/READ/CLOSE corrupt that would be ... -
z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…
... if anyone knows if the Z88DK's spritelib SP1 has any ... indeed, any bit of the z88dk (since the source of the ... -
64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... 've searched the forums and read about it - just for 128K ... seems doable. Any code to peek at? -
BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... I will assume you already read the BIFROST* documentation first, so ... /> I implemented this demo using z88dk, although a Boriel's ZX ... /> * Requires "BIFROSTENGINEV1.2H_z88dkInterface.zip" and z88dk
* This program can ... -
redirecting Z80 sub-routine CALLsI'm working on changing a TR-DOS disk program to work from standard +128k tape and thought that rather than painstakingly working through the code ma…
... to determine what sectors are read in where and when and ... the whereabouts of the disk read calls in those code blocks ... ; lengths being read, and the destination page & address, from which info ... -
Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…
... out and jumps to address 0x0000 the Spectranet doesn ... the first mounted filesystem into address 0x0000. The stage 3 ... to get something into address 0x0000 so when the ... , a write and a read pin. The Spectrum ROM ... two chip selects and a read pin. Basically, SRAM ... -
ZXDev - powerful environment for development in four languages is ready for testingXDev/ZXDev is open and free set of compilers, additional tools, libraries and design patterns for target platform ZX Spectrum 48K in different progra…
... target machine code, better than z88dk:
[url]http://www ... .z88dk.org/forum/viewtopic.php?id= ... be a problem. You can read it with help of multi ... -
saving time populating large arraysI use a variation on this idea for storing machine code at the end of programs without interfering with LIST, then it occurred to me that it would al…
... DEF FN p(a)=PEEK a+256*PEEK (a+1):
... ):
POKE 23627,PEEK 23670: POKE 23628,PEEK 23671: PRINT "d ... FOR a=1 TO 6: READ d$(a): NEXT a:< ... ):
POKE 23627,PEEK 23670: POKE 23628,PEEK 23671: PRINT "d ... STEP -1: LET sum=sum+PEEK (vars-offset-n)*n: ... -
Asking for help: ZXBC to ASM routine translationHallo, In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler [code] sub light(x as uinteg…
Hallo,
In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler
[code]
sub light(x as uinteger,y as uinteger,intensity as ubyte)
dim adr as Uinteger
if x -
A 128 Routine to Put Tokens in StringsI was writing a DEF FN on the +128k and decided that I'd had enough of not being able to put function tokens in strings without a great palaver and s…
... ):
LET la=256*PEEK (a+1)+PEEK (a+2): LET ll ... /> 9992 LET b=a+4: READ t$,t: IF NOT t ... b=b+1: LET p=PEEK b: IF p=14 THEN ... /> DEF FN p(a)=PEEK a+256*PEEK (a+1)
[/code ... -
Checking for '+2e/+3e' ROMs via Sinclair BASICHi guys, I have a Spectrum +2A containing the '+e' ROMs (and a nice internal IDE interface with a CF card adaptor on it :) ) - If you are unsure wha…
... /> Is there a memory address I can PEEK that will give me ... -
Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …
... /> + Monitor now supports Go To address. Clicking on the register values ... causes a GO TO that address.(CCowley, Obo and others)
read/write from memory, ports etc ... -
Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... , 3estrowsaw has the ability to read BASIC programs - in this case ... load into as a start address. Interestingly code is loaded from ... it has saved and is read for input.
to ... -
Hidden message in Down To EarthJust found this in the Down To Earth code. I like reading these old messages left behind by programmers. [code]WELCOME TO ORIFICE Credits Darren B…
... at
reasonable hourly charges. Read
these reviews...
So write me (normal address),
including a photo, large ... -
Problem with Page 7I've been experimenting with running code in page 7 (+3) from BASIC and I seemed to have got it sorted out but then it all went wrong. Firstly, I tr…
... : FOR a=65368 TO 65371: READ p: POKE a,p: NEXT ... TO 139: POKE 65368+a,PEEK (16384+a): NEXT a:
3 bad +3 drives need repairHi! I have three +3 and all of them have failed drives. I changed the belts, cleaned everything. One drive has failed stepper motor. Other two behav…
... cannot read what the format and give out missing address mark on ... track 0. But they read disks formatted ... to me. Well, i cannot read any of them but he ...A quick newbish questionI'm reading through 'mastering machine code on your spectrum',as kindly posted by Mr bert on this forum. Correct me if I'm wrong from what i read,bu…
... 'm wrong from what i read,but single registers ie B ... the most the spectrum can address?.
So two register ...Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... of my code using start address 0 and generate relocation table ... through it and add load address to all entries inside.
z88dk?16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…
You may want to read [URL="http://www. ... to present the column address to the RAM and ... to latch the row address. Extreme measures aren't ... appear on the lower RAM address lines. In particular, ... resistors in series with the address lines. All this means ...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 …
... placed at a platform-specific address called the Advanced Power Down ... target pointers
2) read in 1 row (= 5 bytes ... ) of data
- read byte
- if $ff, we ...quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... a string variable) or an address (if referencing free RAM). Any ... that if a free RAM address is a calculated value rather ... DEF FN p(a)=PEEK a+256*PEEK (a+1):
DEF ... /> LET loc=VAL VAL$ (CHR$ PEEK (a-3)+"$"):
POKE a ...Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…
... BC, 5 ; C=5 shared read mode
CALL DOS_OPEN ; ... DE, 2 ; lenght and dest address
LD BC, 0 ; ... 0
CALL DOS_READ ; read block lenght from header
call DOS_READ ;read level
ld ...
