-
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... amount of gfx you need to store in memory the ... So why copy from buffer to screen when you have double buffering ... high framerate games write directly to screen and dont bother with buffer ... br /> Are you willing to simplify background to degree that it can ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... Hikaru is trying to tell you that screen is generated in ... routine behind the beam generating screen, at the moment when frame ... cca 27000 T when writing to screen area is contetion free. So ... you probably can copy whole screen without beam colliding copy routine ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... So why copy from buffer to screen when you have double buffering ... high framerate games write directly to screen and dont bother with ... beginning.
To be faithful to original game, rich backgrounds ... 3 frames, 1 is for screen refresh/copy)), I'll be ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... amount of gfx you need to store in memory the target ... . So why copy from buffer to screen when you have double buffering ... the start of the thread, to avoid repeating myself.
but its possible to use RType styled gfx - -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... area that gets copied to the screen, load SP with ... this would lead to flickering due to attributes being updated ... or uncontended buffer RAM, to avoid writting to screen (contended RAM), however, ... I'm not sure it's possible to ... -
P.O.W.As far as I know, a port of P.O.W. (Prisoners of War) from NHK, doesn't exist. [img]https://cld.pt/dl/download/61d19b5e-453b-489c-b17b-d3ed6fccd594/…
... , or uncontended buffer RAM, to avoid writting to screen (contended RAM), however, I ... 'm not sure it's possible to ... that are closer to the edges of the screen. To avoid shifting this ... -
ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... only 16k-256bytes are copied to avoid overwriting the copy ... code is copied to screen zone (the program tries to find an invisible ... spot on screen ie: ink ... =paper)
Then jump to that small ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... 1024MAK;874538"]Because resistors R1 to R8 "isolate" the data ... available memory, when not writing to screen, since it will be ... overloading with screen address range, although ULA, ... stick to read only, and not be used while writing to screen. -
Why did the Commodore 64 lose to the Spectrum in the UK?The Commodore 64 was released in the UK in 1983. As we all know, it was a great machine from a US company with a much larger financial backing than t…
... few speccy owners went on to own amiga's after.. you ... fast. wireframe / isometric again due to 64 hardware , speed wise on ... as it's directly writing to screen. in aspects that continued with ... -
Any love for Fred?What better time than international Fred appreciation day to share stories of and play Fred?
... by the
option to return to screen 1 or redefine the maze ... -
Any love for Fred?What better time than international Fred appreciation day to share stories of and play Fred?
... by the
option to return to screen 1 or redefine the maze ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... ; Critical set of instructions to force required bus addr pattern ... ] are in reverse order on screen.
And ... side |T2-T1|, relative to screen vertical [color="green"]green markers ... simulation Vectors. Trying to give a chance to WinCupl Software, ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ,$4000 ; Load HL with screen address $21 $00 $40 ... ; POKE bit pattern in to screen memory $77
62017 ... INC L ; Next screen byte $2C
62018 ... ,$00 ; Next row of screen bytes $2E $00
screen bytes $24
62025 ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ,$4000 ; Load HL with screen address $21 $00 $40 ... ; POKE bit pattern in to screen memory $77
62017 ... INC L ; Next screen byte $2C
62018 ... ,$00 ; Next row of screen bytes $2E $00
screen bytes $24
62023 ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ),A ; POKE bit pattern in to screen memory
INC L ; ... Next screen byte (256 iterations)
LD ... ),A ; POKE bit pattern in to screen memory
INC L ; ... Next screen byte (256 iterations)
JR ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ),A ; POKE bit pattern in to screen memory
INC L ; ... Next screen byte (256 iterations)
LD ... ),A ; POKE bit pattern in to screen memory
INC L ; ... Next screen byte (256 iterations)
JR ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ),A ; POKE bit pattern in to screen memory
INC L ; ... Next screen byte (256 iterations)
LD ... ),A ; POKE bit pattern in to screen memory
INC L ; ... you save can be used to clear screen memory instead of looping ... -
Must be missing the point - machine code... Hi Folks, Trying my hand at machine code again but falling at the first hurdle. I hand crafted the following to run at address 62000 and the co…
... ),A ; POKE bit pattern in to screen memory
INC L ; Next ... ),A ; POKE bit pattern in to screen memory
INC L ; Next ... A ; POKE bit pattern in to screen memory $77
62009 INC ... A ; POKE bit pattern in to screen memory $77
62011 INC ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... to copy the screen to memory or GOTO 220 to copy memory to screen.< ... br /> [code]100 CLEAR 58367
110 FOR i=65344 TO ... 200 RANDOMIZE USR 65344: REM screen to mem
210 STOP < ... RANDOMIZE USR 65356: REM mem to screen
230 STOP [/code ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... -some-buffers-and-copy-them-to-screen concept:
http://iki ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... copies the buffer to screen, then draws one sprite to the next buffer ... and copies it to the screen, etc, until it's ... , this is also an answer to the question "how do the ... -
Proportional fontsI've been doing some proportional font drawing, purely on C level at the moment, but it's orders of magnitude slower than I'd want it to be. It's sti…
... code x0A so it can print to the next line down. Removing ... text, should just print it, then return. Interesting to see how fast ... this print version. I could add support for control codes to ... change character set mid scroll or print without too ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... 're right, reads and writes to the first 16K of RAM ... with the ULA fetching the screen data. While the ULA is ... - but then if it has to write to screen memory, it will be ... memory it needs for variables to actually run. -
Why doesnt this work???Simple piece of code wont do as it should, just want to fill the top 22 lines of screen with an attribute value (150) but it wont have any of it. Som…
... should probably copy SP to memory first, then retrieve ... i.e. into the screen memory) that you don ...
An interrupt pushing to screen RAM should not be an ... interrupt to write below the display or to a screen area ... won't write below the screen
push de< ... -
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... %0100010010000011(**) to formulate screen addresses from bit strings related to screen coordinates, or ... the components of a screen address don't line up ... like which column the screen address is in and ... which third of the screen the address is in. ... -
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
... />
- copy content of 16384 to 16385
- copy content of ... 16385 to 16386
- copy content of ... 16386 to 16387 and so on...
to screen because I need A register ... -
Control methods to support in new game (kempston, sinclair, redefinable keys etc)Hi guys, I've been busy lately working on porting a game from the C64 to the Spectrum, and I'm at the point where the main game is working pretty …
... , I simply choose Sinclair to start playing immediately, although I ... anyone that got used to QWERT controls from playing ... typically executed while last screen rows are being rendered.< ... copy images from buffer to screen inside interrupts (for synchronization). -
Control methods to support in new game (kempston, sinclair, redefinable keys etc)Hi guys, I've been busy lately working on porting a game from the C64 to the Spectrum, and I'm at the point where the main game is working pretty …
... , I simply choose Sinclair to start playing immediately, although ... active on the title screen. If however the game ... typically executed while last screen rows are being rendered.< ... that copy images from buffer to screen inside interrupts (for synchronization ... -
How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…
... the value within itself so to speak, what you need here ... . That and you're supposed to traverse the line backwards when ... direction of POP
To scroll new bits in, you ... buffer and then blit that to screen (additional slowdown - lots of ... -
How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…
... the value within itself so to speak, what you need here ... . That and you're supposed to traverse the line backwards when ... direction of POP
To scroll new bits in, you ... buffer and then blit that to screen (additional slowdown - lots of)[/quote ...
