-
Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…
... /> Well... it?s sooooooooooooo hard to make a game using Assembly ... powers or Einstein-like intelligence to learn it, although it does ... instruction and you just need to learn which flags and ... bit is figuring out how to string those few very simple, basic ... -
What (Speccy) game are you currently playing ?(Quite a few threads on what youre listening to, watching etc) What Speccy game are you currently playing ? After playing a LOT of Invasion of the …
... Manager, having changed the top 32 players to the current incumbents. Thankfully ... -
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…
... WAV 44.1 KHz to 88.2 KHz. Load ... read 16 bits, and not 32 bits.
[/quote]
... The max speed is 32 KHz to 64 KHz. Someone can ... I need 88.2 KHz to make a perfect wav ... in 256 bytes have up to 1.500 INs errors, ... />
I'd like to see you record your WAV ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... of code to change HL to send you back to the start ... LD SP,32 and ADD HL,SP to move to the next ... then be wider than 32 bytes to allow fill-in at ... could devote more memory to techniques rather than data.< ... many passes to change the buffer address to start reading ... -
Extracting data from cassettesI've been doing some tidying up and I'm optimistic that I'll find my old Spectrum tapes at some point. Is there a recommended method of getting the d…
... convert 16 or 24 or 32 bit to 8 bit. But 8 ... />
So, it is better to digitize cassette with 16 bit ... , and then convert to 8 for makeTZX or use ... /> 16 bit recording can help to restore data in case when ... -
How frequent is the flash switching?Hello All, A quick question if I may be so bold :) Is there any documentation on how fast the flash is switched? I've found this but I'm not sure i…
Having just checked Chris's book it looks as if aowen has incorrectly paraphrased, it takes 32 frames to complete the FLASH cycle (i.e PAPER to INK and back to PAPER again). -
The Euro 2012 England supporter's threadCome on in, grab a beer and try not to get too depressed. Let's take the time to enjoy the Euros now, cos we won't be enjoying it once they start! :…
...
[B]?England have switched to a more direct approach?[/B ... into their own half to protect their advantage while ... touch?[/B] ..The ability to control a football effortlessly when ... ? like England ? you struggle to string more than two passes together ... -
Well, it's over...Today, I got the letter in the post I was hoping would not arrive.. The wife and I have been having some problems during the year and my health issu…
[QUOTE=fogartylee;641146]Wrong. The victim is always Dr. Black.
Just saying.....[/QUOTE]
Ah. Of course. I forgot about the rope to string yourself up with. It always leads to Dr Black eventually. -
Something that just occured to me (Windows 8 related)Even though personally I probably won't be putting Windows 8 on any of my PCs, as it offers no real advantage for me, I have to keep my hand in with …
... machines that I have to stay used to standard Windows setups, ... I went from XP 32-bit to Windows 7 64-bit ... , as theirs drivers refused to work in W7, and ... new drivers (I managed to kludge the printer into working ... in Linux would prefer to build their PC rather ... -
The Official Crap Games Competition 2013 Thread!Just to announce that the 2013 CGC is OPEN! [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/cgctitle2_zps77591934.jpg[/IMG] And for th…
... served a purpose other than to irritate! ([I]See the comments ... of a random number (repeated 32 times to get a "note") shortly ... -
CODE SCREEN$ in MCIs there any way of determining what character is displayed at a certain co-ordinate from machine code like the 'IF CODE SCREEN$=' arrangement in bas…
... /> call STK_FETCH ;fetch string from stack
ld ... DE points to string
or c ;null string?
... the first character of string
ret
Multicolor chess?I thought multicolor chess pieces would be a good idea, since it's easy to fit a 8x8 chessboard within the 9x9 tile area of BIFROST*. However this tu…
... We theoretically have to be able to store 9 queens ... of the remaining codes to say "promoted piece number ... You have to decide what to store and what to calculate. ... a table of 32 words to represent the type ... An alternative option is to store the entire board ...Multicolor chess?I thought multicolor chess pieces would be a good idea, since it's easy to fit a 8x8 chessboard within the 9x9 tile area of BIFROST*. However this tu…
... You have to decide what to store and what to calculate. I ... after a piece moves to save calculating it for ... type, and has nothing to do with what colour ... have a table of 32 words to represent the type and ...
Yes. Something akin to that is already assumed in ...Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... ; de = char *string
; exit : hl = char *string
; de ... />
push de ; save string
; there is ... compute_lp
; write digits to string
; ix = ...Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…
... when you do have to get everything exactly right. ... delay loop (e.g. 32 cycles) to pad the top border. ... And if you want to support the Pentagon clones, ... system (e.g. back-to-back PUSH statements) but ... There, again, I resort to trial and error. Though because ...display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... if you're going to be drawing sprites to pixel positions. Or ... page. So H points to your table, you put ... could declare the first 32 rows to be off the top ... of the screen, and the last 32 ... contended RAM if you want to keep the timing precise). ...I have done a Spectrum Screen Design Template As PDFI use this for my games, to work out attribute and screen addresses. It is A4, to be printed landscape [url="http://www.peargames.co.uk/downloads/s…
... of numbers? Oi, Excel, get to work...
[ ... in characters (0-31) to each address and then ... from right-to-left within that byte to set a particular ... loop macros (in PASMO) to generate these as tables; ... the first and last 32 rows to address 0 so that ...20 words that mean something different in US than in UKhere is the article: [url]http://www.bigstockphoto.com/blog/20-british-words-that-mean-something-totally-different-in-the-us[/url] for me Chips are…
... "She's got hair... down to her fanny" - ZZ Top, ... I] acrosst [I]town to buy a lightbulb.[/I]"[/quote ... the postman/my lottery numbers to come up". Everyone I ... the age of about 32 seems to say it these days ... " - "I pacifically asked you to do this!" It's probably ...20 words that mean something different in US than in UKhere is the article: [url]http://www.bigstockphoto.com/blog/20-british-words-that-mean-something-totally-different-in-the-us[/url] for me Chips are…
... /the postman/my lottery numbers to come up". Everyone I work ... under the age of about 32 seems to say it these days ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... loader which copies ROM loader to higher RAM and changes ... 216 start addresses and loads 32 bytes to each in sequence. Therefore ... uses interrupts during the loader to make border lines disappear at ... The Earth - also uses IM2 to make border lines only towards ...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…
... ex de, hl ; pointer to string to DE
call stk_sto_str ; ... location before string to HL
inc hl ; point to string
... hl ; start of new string to HL
ld a ... call l_string ; add new string to variables area
pop ...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…
... if greater or equal to 128
rra ... br /> call x80_fhexs_2 ; convert to string
ld a, l ... br /> call x80_fhexs_2 ; convert to string
pop de ; ... rlca ; nibble
rlca ; to low
rlca ; nibble< ...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…
... token
cp '$' ; string?
jr z, tokenizer_3 ... de, hl ; HL points to string or element
string
jr nz, report_c ... /> ; THE 'EXPECT NUMERIC / STRING EXPRESSIONS' SUBROUTINE
org 0x1c79 ...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…
... /> inc hl ; point to next character
call ... stack_num ; floating point number to calculator stack
call ... /> call ln_to_str ; create string representation
ld e, ... /> ; THE 'LINE NUMBER TO STRING' SUBROUTINE
org 0x3b91
That painter thing..I'm struggling to think of a non clunky way of detecting when a 'box' has been surrounded and can be highlighted, like in the pic: [IMG]http://i1142…
... red square changes it to blue (to avoid duplicate counting). Each ... max. 4/square, easier to always have 4, with 0 ... square changes from red to blue, look up the ... of its border squares. To simplify the main xref ... then just use row*32+col to get the entry. The ...Clearing 22 lines of the screenHow do I go about clearing the top 22 lines of the screen and leave the bottom #0 area untouched? I have a routine to reset the attributes, but cant…
... I did write this to clear any number of ... [CODE]org 32768
;ROUTINE TO CLEAR A GIVEN NUMBER OF ... delete
ld b,32 ;32 bytes to delete per line
...
pop hl ;back to start of line
inc ... byte
add a,32 ;next row down within a ...The official CSSCGC 2014 threadJust to announce that the comp.sys.sinclair Crap Games Competition 2014 is now open. It's home for the year will be; [url]http://www.mykeweb.co.uk/c…
... got past UDGs when learning to program back in the 80s ... of WoS forum skimming to figure out how to remap the character ... />
95 font characters 32 (space) to 127 (copyright) and 21 UDG ... 's comes to 116, wheres the other 76 ...The official CSSCGC 2014 threadJust to announce that the comp.sys.sinclair Crap Games Competition 2014 is now open. It's home for the year will be; [url]http://www.mykeweb.co.uk/c…
[QUOTE=daveysludge;747419]95 font characters 32 (space) to 127 (copyright)[/QUOTE]
Actually there are 96 font characters (from 32 to 127).
Thus 2 different fonts will give you 96*2=192 characters, using 768*2=1536 bytes.How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... rom font of 256 are 32 (space) to 127 so 95 characters ... . Does this apply to udgs too? It also says ...
