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Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…
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Me too, I had to fill in the blanks by ... (rem - learn hex), and realised it was a string and printed it ... -
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…
Use a string (or multiple strings) for your hex data and read it ... of INPUT). You probably want to end with a special token ... offsets by hand is going to be tedious...
EDIT ... -
Lime Rick, like Snake but with gravity[B]Lime Rick[/B] by [url=http://www.kissmaj7.com/games/]Kissmaj7[/url] is an elaborated version of "I Left Myself Behind". It's a puzzle game with an…
... and turned into a short string of HEX so it can be ... mean copy/pasted directly from/to emulator memory? In this case ... levels it would be hard to figure out the initial/final ... level. A more traditional option to load and save levels would ... -
Lime Rick, like Snake but with gravity[B]Lime Rick[/B] by [url=http://www.kissmaj7.com/games/]Kissmaj7[/url] is an elaborated version of "I Left Myself Behind". It's a puzzle game with an…
... and turned into a short string of HEX so it can be ... (11*15 / 2), then binhex to get readable characters, that's ... />
Maybe it's best to include both methods, load/save ... a set of 25 levels to tape AND load/save a ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
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; THE 'HEX$' FUNCTION
org 0x38ca
call x80_fhexs_2 ; convert to string
ld a, l ... br /> call x80_fhexs_2 ; convert to string
pop de ; ... ; nibble
rlca ; to low
rlca ; nibble< ... -
Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... The stack is used to store local variables and function ... and globals are assigned to fixed memory addresses, ... Can you try a hex start address instead? -zorg ... a score in a string that will do leading ... his brief routines to do decimal to ascii conversion. It ... -
Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... ]t
when I try hex it just starts the program ... [/QUOTE]
Ok, that hex string is probably being ignored then ... line options somewhere had to be specified in hex, but without the ... -
Let's all have a look at each others...Quite a few musicians around this place...so I thought, let's have a thread to show of our main - or even all - instruments. I'll get the ball rolli…
... suspected, it's better to just use a reverse headstock ... hardware is all original)
String Nut: Genuine Bone
Switch ... /> Saddle Height Adjustment Wrench: .050" Hex (Allen) Wrench
Strings: Ernie ... Roll (closest I could get to 10-38s)
Unique ... -
Double Buffer UtilityHi Folks, I've been experimenting with double buffering on a 48k Speccy for a small project I'm working on. After reading lots of good advice here…
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[quote]Enter hex address to store the stack pointer ... = self.inputValue('Enter hex address to store the stack pointer', ... to output the code to the terminal, can it be changed to output to ... instead? Its quite inconveinient to highlight hundreds of lines ... -
Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…
... because Paulo is making changes to z80asm's parser. That ... will be another 24 hours to wait :(
[ ... octet can be decimal, hex or octal as expected).
to startup=100 so it ... />
Changes are made to zx.cfg so guesser's ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... test the main contributor to runtime was printing ... "546.43e-20", and hex floats as in "0xa. ... mantissa bits in the hex string and the exponent is ...
1e-12 in hex format is:
0x0.8d0e95b27d ... that hex string in your calculator.
To multiply ... -
ZX-Spin assembler commands<p>Is there a list anywhere of the asm commands that the Spin assembler accepts?</p><p>I do plan to move onto pasmo for macros but the spin…
... ' or " can be used as string delimiters. The default space filler ... 's a menu option to change it. Hex values use the $ prefix ... -
how do i convert a binary string into hex in basic?how do i convert a binary string into hex in basic?
...
20 REM Random binary string generator
30 LET n ... GOTO 40
80 REM Hex conversion
90 DEF FN ... /> 130 FOR n=LEN n$ TO 1 STEP -1
140 ... -
Emulator suggestion Betadisk 48k TRDOS v4 adress redirection to Betadisk TRDOS v5Hi, may I suggest the following: As there are some older programs only running on Betadisk 48k with TR-DOS v4 and it´s adresses 15360/15363 ins…
... with calling #3C6B / 15467 dez
and after using ... off with calling #3C7C / 15484 dez
An ... doing this is to call #3C06 = 15366 dez and push ... ;TR-DOS v4 #3BFD = 15357 dez
RET
hex (here TR-DOS care itself to put DOS ... -
DEFFNder: a small library of BASIC functions written in Z80I've published a small library of 15 Sinclair BASIC functions written in Z80. I wrote it last year for a project of mine. Some of them are generic, s…
... written a couple of extensions to DEFFNder to implement 16 bit AND ...
string functions to return 8 bit values as binary and hex strings ... the .z80s files into /Path/To/deffnder/src and re-run ... copy the files into /Path/To/deffnder/demo
It now ... -
DEFFNder: a small library of BASIC functions written in Z80I've published a small library of 15 Sinclair BASIC functions written in Z80. I wrote it last year for a project of mine. Some of them are generic, s…
... a couple of extensions to DEFFNder to implement 16 bit AND ... /> string functions to return 8 bit values as binary and hex strings ... This is a rather long string", some screen attributes are corrupted ... . Maybe it has something to do with my current configuration ... -
Pokes needed for following games - any help? :-DHi speccynites,..I need a few special pokes if anyone can help so I can get these games longplayed on the real hardware, can any of you help??? The …
... /> You can poke a string of (decimal or hexadecimal) bytes ... Press [b]h[/b]ex to switch to hexadecimal input
* ... Press [b]SPACE[/b] to enter the starting address
to get back to the game.
to those HEX bytes I was ... -
Which peripheral listened on port $9f from back in 1984 (Chuckie Egg related)Hi Apologies if this is in the wrong section, please feel free to move it to the correct one if so. I've been looking through the Chuckie Egg c…
... of these, to build a word you need to string the phonetic parts ... together.
10 FOR a=1 to ... 255
20 OUT 159,a (159 = 9F in HEX ... -
Which peripheral listened on port $9f from back in 1984 (Chuckie Egg related)Hi Apologies if this is in the wrong section, please feel free to move it to the correct one if so. I've been looking through the Chuckie Egg c…
... of these, to build a word you need to string the phonetic parts ... together.
10 FOR a=1 to ... 255
20 OUT 159,a (159 = 9F in HEX ... it is I've managed to find a review of the ... -
Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... /> ld hl,buffer ; address to write ascii string to
push hl
call utoa_callee ; print number to buffer in hex
; note no stack ... , compute_lp
; write digits to string
; ix = char *buf ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... border timer and "o" exits to basic.
For ...
A simple demo program to show how z88dk and sp1 ...
// Attach C Variable to data declared in external asm ... [];
// Memory to define the background.
Change JPs by JRsIs there any (easy) way to replace all long jumps with relative ones in assembler code? Of course, I can replace all in text editor, and then place …
... to compile some test code, got a bunch files out.
.hex ... like binary dump in hex format, where each string have some kind ...The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... from disz80.txt file to internal structure (a ...
string prefix = string.Empty;
foreach (string s in File ... /> public static byte[] StringToByteArray(string hex)
{
return Enumerable ...Interesting crashesI had an interesting Spectrum crash last night, I think it was trying to tell me something's wrong or it's had enough of my games! Or it could be dow…
... offset value ("inverted +80 hex" according to the Complete Spectrum ROM Disassembly ... indicates the end of the string and what the final character ...1000 games bundled within VEGA?I started a while ago to register into ZXDB the full list of 1000 games included in the original VEGA console launch. So far, I was able to identi…
... it turns out to be trivial to extract the games ... mark from this down to just before the next ... ; Clipboard > Copy as Hex String.
Open a ... Then Edit > Insert String > Hex String > Ctrl+V. Save ... does it anyway. Better to have too much than ...Command line compiler?How do people compile their BASICs these days? I'm thinking of something along the lines of an ASM compiler. E.g. you have a file on your hdd named …
... You might also like to try zmakebas to create a .tap file ... step-by-step instructions to complement the description of ... regard to the latter file, TXT2Emu requires string-embedded tokens to be hex- ... otherwise the tokens in the string would be loaded as plain ...Is there a way to suppress error R Tape Loading Error in Basic when trying to load only part of fileHi, is there a way to suppress error R Tape Loading Error in Basic when trying to load only part of file. E.g.: I have a Tape-Code-File Start f…
... ; ll, and a pointer to "1000bytes", on the calculator stack ... in the statement reference, thus (hex values):
[code]
...
[/code]
The string "1000bytes" starts at $5e78 with ... this example.)
To interpret the various forms of ...Hacking the ZX Spectrum 48K ROMHi Guys, I have modded my Speccy with a dual boot ROM loading on first bank the original ZX kernel and on the second bank an enhanced version. I h…
... [url="http://ridiculousfish.com/hexfiend/"]Hex Fiend[/url].
[quote="repetto74 ... with the HEX editor
Looks a long string of HEX data. (??)
to see with a hex editor? The data ...Hacking the ZX Spectrum 48K ROMHi Guys, I have modded my Speccy with a dual boot ROM loading on first bank the original ZX kernel and on the second bank an enhanced version. I h…
Just to clarity (forgive me, if ... noob” too literally). A hex editor is not a disassembler ... throw at it as a “string of hex data.” That’s what ... the ROM file with a hex editor.
Depending ... , you might also want to familiarize yourself with how the ...
