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Don't care about Apple products, but...My work (Staples) now carries iPads, iPods, and we'll start selling iPhones in about three weeks... I'm a PC guy and I've been out of the Mac World s…
... and the result of the calculation would be wrong more times ... -
Tile routinesHi all, Please does anyone have any examples of tile routines in pure asm to set up maptile screens. I would like to try and understand them and ti…
... this code to get the attr address.
note: it ... /> I then get the colour attr value from my tile definition ... -
Tile routinesHi all, Please does anyone have any examples of tile routines in pure asm to set up maptile screens. I would like to try and understand them and ti…
Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... and end markers for the calculation, then on the rows in ... to exclude lines from the calculation, or flip the state of ...Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... , interleaved, i.e. raster, attr, raster, attr), which are saved into a ... and one read of an attr byte per 4 t-states ...Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... , interleaved, i.e. raster, attr, raster, attr), which are saved into a ... and one read of an attr byte per 4 t-states ...Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
...
forget about the 'calculation'....it's about bit shifting ... more than calculation.
I remember getting ... routine in there that used calculation to figure a screen address ...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…
... . In BASIC, people usually use ATTR or SCREEN$ to do that ...misunderstanding screen addressingHi I am just reading mastering machine code Toni Baker: [url]ftp://ftp.worldofspectrum.org/pub/sinclair/books/MasteringMachineCodeOnYourZXSpectrum…
... />
And the same calculation in HEXADECIMAL:
0x4000 ...Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…
... by 32
rlca ; net calculation: multiply by 4
and ... /> ld e, a ; vertical coordinate calculation done
; add the horizontal ...SBC or ADDIs this dangerous/bad practice thing to do..... I want to subtract 64 from a number, but to save a few bytes can I just add (65536-64) 65472 to the…
[QUOTE=Metalbrain;766625]just remember that the carry flag for the result will be reversed.[/QUOTE]
which, if you need it for another calculation, is a valid use for CCF :DColumn and row numbers to attr address?[FONT=Calibri][SIZE=3]Can anyone provide me with a code snippet the will convert the column and row numbers into the screen attribute address. For ex…
... , E=row
Output: HL=attr address
Modifies: HL,DE ...Column and row numbers to attr address?[FONT=Calibri][SIZE=3]Can anyone provide me with a code snippet the will convert the column and row numbers into the screen attribute address. For ex…
... screen address and attribute address calculation you can think of can ...DIM and FOR, NEXT loopHi there. I'm making a program with 100 items on screen using dim and a for next loop. The thing is, each time I want to manipulate the items I do an…
... I did every check using ATTR. For a boulder dash clone ... red (2), just check if ATTR in the char cell above ...DIM and FOR, NEXT loopHi there. I'm making a program with 100 items on screen using dim and a for next loop. The thing is, each time I want to manipulate the items I do an…
... I did every check using ATTR. For a boulder dash clone ... red (2), just check if ATTR in the char cell above ...It's coming.For a few weeks now I've challenged myself to beat the quality of the original bzither converter. Hats off to Baze, his app is amazing and blew my br…
I don't entirely understand. They still ARE the GigaScreen pictures, aren't they? But with enhanced procedure of converting/calculation?
Well, I wait for the final outcome impatiently anyway.It's coming.For a few weeks now I've challenged myself to beat the quality of the original bzither converter. Hats off to Baze, his app is amazing and blew my br…
... with enhanced procedure of converting/calculation?
Well, I wait for ...Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
... partition and middle element address calculation starts on line 119:
Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
... partition and middle element address calculation starts on line 119:
Why do modern computers go slow?I'm not so much thinking of home PCs slowed down by viruses, more the extent that modern programmers think about the speed of their code. For exampl…
... Excel that's interpreting your calculation, that means you're subject ...Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
... a largest power of 2 calculation and a mask but I ...eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... mA.[/QUOTE]
Your calculation of current does not include ...ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... graphics drivers :-) the T-State calculation will be important. I need ...ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... right about the T-State calculation...
I think, now ... any time, a T-State calculation is possible. That needs an ...UDG tricks?I always enjoyed using [URL="http://www.worldofspectrum.org/ZXBasicManual/zxmanchap14.html"]UDGs [/URL]for the 'sprites' in my games, when I coded th…
... should really be using either ATTR or data poked into RAM ...ZX Spectrum Clock Signal Restorer Circuit[SIZE=5][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U][/SIZE] The circuit below is an experimental circuit. It has only been "tested" using…
... /> I will do the static calculation in public, please do not ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... object info.
The ATTR function works well for getting ... ]Is there any reverse of ATTR, allowing me to apply attributes ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... /> Is there any reverse of ATTR, allowing me to apply attributes ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... get_attr_address
ld a, (attr)
ld e, a
; hl = attr memory address
; a = attr value to poke ... ; poke attr into the attr address
ld a, (attr)
... call get_attr_address
; return attr from attr address
ld b, ...
