-
Two Odd Spectrum 128K FaultsI also have 2 Spectrum+128 machines with heatsinks. 1. Did not power up properly - I replaced the 7805 regulator and cleaned the edge connector and …
... is connected, the DivIDE boot screen is constantly refreshed. I guess ... a definite click when I push in the power connector, which ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... Single Character to Spectrum Screen on Pixel Boundaries< ... push af
;save off Counter, Address of Character Data, Screen Address, Screen ... push hl,de,de
;save off Address of Character Data, Screen ... Address, Screen Address
... -
The Hisoft BASIC v1.2 Plus 3I am trying to compile a basic program with the [B]Hisoft BASIC v1.2 Plus 3[/B]. When i read the instructions to prepare the program to be compiled b…
... at the top of the screen. We have supplied a number ... at the bottom of the screen. You'll have to press ... colours will appear on the screen. We'll explain later what ... variables. For the sake of comparison the number of bytes taken ... -
'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
... /> jp $
;get screen address for given coords
;output: HL=screen address
getScrAddr< ... string
;input: HL=screen address, DE=string address
screen address, A=char
printChr
push hl
push ... -
'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
...
The arrangement of the screen buffer is another of those ... )[/quote]
The screen buffer starts at location 64 ... ; D = Y-coordinate on the screen
; E = X-coordinate.
next_scanline:
push bc ; Free up a register ... -
iXpectrum, new Iphone ZX Spectrum Emulator.Hi, I have been working in a iPhone port from the gp2xpectrum in which i were working time ago with Metalbrain. I decided to port gp2xpectrum becau…
... :
If i push here in the screen :
[URL ... in the upper side of screen is like i pus he ... -
Howto paint a squared zone of the screen ?You know what guys ? i begin to love this languaje. Cant understand why not put more effort on the 80's to learn it :( because it is really speedy. …
...
drawArea
push bc
push hl
;first ...
fillAttr0
push bc
push hl
ld b ...
fillSolidLine
push bc
push hl
ld a ... returns address of the next screen line, calculating it from ... -
KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…
... all the job out of screen every frame, even if they ... .
Finally, the multicolor comparison: multicolor demos DO NOT switch ... -
Howto paint a squared zone of the screen ?You know what guys ? i begin to love this languaje. Cant understand why not put more effort on the 80's to learn it :( because it is really speedy. …
...
drawArea
push bc
push hl
;first ...
fillAttr0
push bc
push hl
ld b ... />
fillSolidLine
push bc
push hl
ld a ... returns address of the next screen line, calculating it from ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... -up table to set the Screen Addressing. Bear in mind that ... revamped for speed to use push and pop (and it's ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... push af
;save off Counter, Address of Character Data, Screen Address, Screen ... Address[/I]
should read....
[I]p_print0 push ... of screen check and the push af was part of that push hl ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... /Turkwel/Image1.jpg"]Output Screen Here[/URL]
... /> p_print1: push hl
push de
push de
;save off Address of Character Data, Screen ... Address, Screen ... -
Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…
... ;
main exx
push hl ; preserve return to basic ... ; fetch current error return
push hl ; and preserve
;< ... ld de,16384 ; unpack loading screen
call unpack
;< ... temporary channel
;
push ix
pop hl
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... a push/pop loop with B going down from 24 (screen only ... ) or 27 (screen + attr).
< ... stack pointer register and PUSH data onto the screen display.
Do ... the ULA starts rendering the screen details instead of the border ...LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... stack pointer register and PUSH data onto the screen display.
... the ULA starts rendering the screen details instead of the ... a RETI and start your screen rendering immediately after a ... a few cycles, do the screen rendering inside the interrupt routine.LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... /> The idea with [b]pop/push[/b] loops is that [b ... ]push[/b] writes two bytes more ... out a quarter of the screen's horizontal width.LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
Well. This is my contribution to the list of vertical scrollers. This one uses PUSH/POP transfers, and no HALT's to sync with the screen (I just wanted to see how fast I can achieve).
[url]http://www.atc.us.es/~rodriguj/scroll_vertical.sna[/url]WOS community...I am somewhat surprised and distressed by the size of WOS community. 29,544, Posts: 445,305, Members: 4,896, Active Members: 485 2000 - 2010 years …
... the delight of some title screen and were disappointed in the ... draw today at Spectrum in comparison to what has been done ...WOS community...I am somewhat surprised and distressed by the size of WOS community. 29,544, Posts: 445,305, Members: 4,896, Active Members: 485 2000 - 2010 years …
... the delight of some title screen and were disappointed in the ... draw today at Spectrum in comparison to what has been done ...TRD/SCL importer for MB02+ and PROFI INTERFACEHi all MB02+ users, I know this time noone of you will be able to use my new program, because with MB02+ you will also need Velesoft's PROFI INTERFA…
... or sams 4?mb/extra screen modes
but then masterbasic ... proportioanl font or use the push mnemonic to get 16 pixels ...Altered beastOne outstanding feature of the game is that intro,otherwise game plays well on the speccy,a classic i think..
... and BRIGHT yellow at a push). First boss red, 2nd boss ... kind of turns into a screen pizza once the action gets ...Do you think they'll be pissed?I'm not sure if this is in the right forum. It just went up. [url="http://www.youtube.com/watch?v=LpfM0hNmukM"]Silkworm Intro Music Battle - Who Wi…
... nothing to do with the comparison. I didn't say I ... (same tune within limits)... both push the machines to the limit ...multicolor on 48Kmany people tried multicolor 8x1 on 48K model and ended with maximum width about 18 chars. yesterday i tried [b]8x2[/b] on 48K and achieve 24 char wi…
... at the same time that screen bytes are being drawn, you ... realised that LD HL,nnnn/PUSH HL could be faster than ... POP/PUSH. Must try again some time ...Invasion of the Zombie Monsters - What do you think of it?In case you missed it, RELEVO Videogames have just released their excellent Invasion of the Zombie Monsters game for free... (See [url]http://www.wo…
... , then attribute sized shifts in screen would seem more appropriate... It ... sprites are in comparison to the amount that the screen scrolls by ...Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... more than 30 sprites on-screen. There are never more than ... the screen at a reasonable speed. Cybernoid is a better comparison, but ... count about 16 sprites on-screen at once, and the trajectory ... amazing amount of sprites on screen. But that's only possible ...Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... 30 sprites on-screen. Cybernoid is a better comparison, but even at ... count about 16 sprites on-screen at once, and the trajectory ... amazing amount of sprites on screen. But that's only possible ...Did the average Spectrum programmer really even try?I've been thinking about this recently, I'm always hearing Amstrad, and MSX users moaning about how unfair it was that they got "lazy Spectrum ports"…
... Cybernoid earlier, using it for comparison
CPU usage
screen from the previous set of ... bounce balls ricocheting around the screen. There's in game music ...Challenge: Make a Speccy version of "Leisure Suit Larry 1"and put it on this site as a rom c'mon be nice!
... or at least the loading screen) but all his webpages are ...
LD DL,23783
PUSH HL
LD (23613),SP ...
LD HL,34104
PUSH HL
LD DE,41536 ...Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... this does is give the screen a shaded look AKA the ...
JR NZ,FA
PUSH DE
LD DE,0008 ...
JR NZ,F1
PUSH DE
LD DE,0017 ... :
[FONT="Courier New"]PUSH DE
LD DE,0017 ...Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... HL,16384d ; Start address of screen 210040
LD A,85d ... (HL),A ; POKE bit to screen 77
INC HL ; Add ... back -6 bytes 20FA
PUSH DE ; Store DE on stack ... ,LOOP ; Loop back 20F1
PUSH DE ; Store DE on stack ...
