-
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... ; row = 4*row
sla b ; row = 8*row
sla b ; row = 16*row, sets ...
; look up screen address from the table
ld a ...
.loop:
; blit 8 pixel row to screen
ld a ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... ; row = 4*row
sla b ; row = 8*row
sla b ; row = 16*row, sets ...
; look up screen address from the table
ld a ...
.loop:
; blit 8 pixel row to screen
ld a ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... checkerboard pattern at column 31, row 23
ld hl, checkerboard ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... ; row = 4*row
sla b ; row = 8*row
sla b ; row = 16*row, sets ...
; look up screen address from the table
ld a ...
.loop2:
; blit 16 pixel rowdata to screen in cells ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... +3)
cp 23 ;check row
jr c,wearefine
row 23
ld hl, checkerboard ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... (ix+3), 18 ; and the row to 18
airloop ; ld ...
; NEED TO DO THE ROW CHECK BEFORE CALLING text_out
cp 24 ;check row < 24 before calling text_out ... checkerboard pattern at column 31, row 23
ld hl, checkerboard ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... (one screen address per row instead of per pixel, so uses a ...
; look up screen address from the table
ld a ... /> ld l, b ; restore l from when we stashed it in ... for 2nd row
REPT 7
; blit 16 pixel rowdata to ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... (ix+3), 0 ; and the row to 18
airloop ; ld ...
; NEED TO DO THE ROW CHECK BEFORE CALLING text_out
cp 24 ;check row < 24 before calling text_out ... checkerboard pattern at column 31, row 23
ld a,5 ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... .toprowloop
; middle of top row, 2 bytes collision
ldi ... .botrowloop
; middle of bottom row, 2 bytes collision
ldi ... cannot be on the edge. calculate hl = 2 * hl - 1< ... screen until it gets to position 31,23.
(presumably ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
That needs the row in L not B register< ... be ALIGN 32
; l = pixel y-coord (cell coord, not ... pixel coord)
; c = pixel x-coord/8
from a 16x16 as an 8x8 ... -
Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... 8 pixels at any x position
; B = line startpos ... /> ; line is drawn backwards from startpoint X to startpoint X ... /> ; convert row -> offset of row in screentable (= tbl_scraddr + row*16)
; look up screen address from the table
ld a ... -
Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... 8 pixels at any x position
; B = line startpos ... /> ; line is drawn backwards from startpoint X to startpoint X ... /> ; convert row -> offset of row in screentable (= tbl_scraddr + row*16)
; look up screen address from the table
ld a ... -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... character at current scr_out position and update scr_out position
; C = ... de ; + FONTBASE
; restore DE from BC
ld d, b ... terminated string at current scr_out position
; HL = pointer ... ld a, 23 ; set scr_out row to 23
ret
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... character at current scr_out position and update scr_out position
; C = ... de ; + FONTBASE
; restore DE from BC
ld d, b ... terminated string at current scr_out position
; HL = pointer ... ld a, 23 ; set scr_out row to 23
ret
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... did the trim leading zeros from number output thing.
... character at current scr_out position and update scr_out position
; C = ... terminated string at current scr_out position
; HL = pointer ... ld a, 23 ; set scr_out row to 23
ret
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... character at current scr_out position and update scr_out position
; C ... terminated string at current scr_out position
; HL = ... a, 23 ; set scr_out row to 23
ret
; code borrowed from here http://z80-heaven.wikidot ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... character at current scr_out position and update scr_out position
; C = ... de ; + FONTBASE
; restore DE from BC
ld d, b ... terminated string at current scr_out position
; HL = pointer ... ld a, 23 ; set scr_out row to 23
ret
PocketClive bugHi... thought I would give all of you that downloaded PocketClive, the PocketPC spectrum emuator a small bug report! There is a bug that prevents …
... a bug that prevents you from seeing any .z80 files stored ... .sna file in the same position. So just download a single ...How to copy file from tape (*.tap) to disks (*.dsk) ?I am using zx32 with win98 and i want (in the emulate +3) copy files from virtual tapes to virtual disks. I use => load "NameOfFile" (for copy the f…
... the emulate +3) copy files from virtual tapes to virtual disks ... to copy c64 tapes programs from tapes to disk.
I ... my speccy (convert the files from tapes to disks).
The threat from the ISDAWhat does everyone here think about ISDA closing down abandonware & emulation sites? Personally to an extent I can understand their position, but if …
What does everyone here think about ISDA closing down abandonware & emulation sites? Personally to an extent I can understand their position, but if old games aren't available anywhere else, then where else are they going to get them?Ripping Text from ZX games running on EmulatorsHello one and all - All hail Retro! I'd like to know how to rip all the .txt from ZX games running on a windoze emulator (I'm a writer and like do…
... to rip all the .txt from ZX games
running on ... /> weird/obscure texts, like those from adventure games.)
Hope ...AY musicThis is a format I'm proposing for an AY music player. If anyone can see any problems or anywhere it can be improved please say so. An AY music form…
... looping, start playing an instrument from an offset (also implictly ... and loop, 8000 basically repeats from the start, other values ... br /> Stream 2byte - the current position of the stream
Volume ... be easy to read both from an editing programs perspective ...The scheme from ??? is necessaryWho has scheme from the computer ??? of the version from 4.00 up to v4.50?
Who has scheme from the computer
??? of the version from 4.00 up to v4.50?SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... - probably errors in the translation from Italian to
English :)
Now saves window size and position.
Added "Tape Auto Rewind ...Games that benefit from a change in speed.Has anybody tried playing games on an emulator at different speeds? I've found that certain games are more playable with a slight speed tweak. Obvio…
... the other hand, Popeye benefits from slight increase so that the ...Bowie fans in WoS, part 2: The photos from LuccaAs I promised before, I put the photos from the David Bowie concert in Lucca on my website. Actually, there were some other ones, but they did not co…
... before, I put the photos from the David Bowie concert in ...Need scan of batman tape from Crash 60 :-) I have managed to dig out all the cover cassettes from the loft but have Batman missing from issue 60 :( Can anybody scan the cassett…
... out all the cover cassettes from the loft but have Batman ... missing from issue 60 :(
Can ...OUT to file, IN from fileOUT - sentences won't do much on emulators since they mostly communicate with external devices. If there was an emulator that would write the (last) …
... hardware.
OUT 254 (from tape) might be handled different ...
