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Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
... = char **string_ptr + 1
push hl ; save start of token ...
push bc ; save char **string_ptr + 1 ... will only pull in one copy of sp1_initialize so the constants ... -
Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... and uses POP and PUSH to copy the
contents ... pointer
push bc
push de
push hl
... push af
push bc
push de
push hl
push ix
push ... exx
push hl
push de
push bc
push af
ISO-Copy - Individual Software revisitedHi folks In another thread about Supertape: [url]http://www.worldofspectrum.org/forums/showthread.php?t=36203[/url] ... we touched on ISO-Copy by th…
... to better understand the ISO-Copy 1/2 and Quicksave II ... /> 5CDE IM 1
5CE0 PUSH IX
5CE2 LD BC ... .dropbox.com/u/70400652/ISO-Copy/ISOCOPY1%20raw%20data.jpg"]here ...DK Tronics Compilation Tapes....MIA ??I have two tapes (no inlays) of compilaitons of DK Tronics games. One is from DK Tronics themselves, has a white label with black text, and contains…
... if Jumbly has a weird copy protection, or it's just ... LD H,A
16389 PUSH HL
16390 EX (SP ... LD HL,53034
16401 PUSH HL
16402 LD DE ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
... $2da2 ;FP-TO-BC
push bc
ld ix,16384 ... ,(hl)
ld (de),a ; copy byte
ld (hl),0 ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
... old att address
push hl
ld a ... A =old attributes
push af
bit 0,( ... bit 0,(ix+28) ;copy attributes?
jr z, ... /> ld (bc),a ;copy attributes
NOATTR: pop ...number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…
... ld c,"."
call COPYDIG ;copy integer
NEXTDEC: ... 0
call COPYDIG ;copy decimal
dec de
push hl
push de
push bc
ld ...SUPER INPUTA couple days ago I searched for an "INPUT string" routine that I could use in Assembly programs and supported multiple lines, but I found none. Thus…
... :
[CODE]EDIT: push hl
push bc
ld a ... jr z,NOTEXT
ldir ;copy initial string to INPUT workspace ... br /> ld de,(WORKSP)
push de
scf
...Pixel Nation & Writers wanted!Before I get to my main question I just wanted to talk about a project I've been involved with. I recently worked on a printed magazine for NES-Bit.c…
... and of course every printed copy comes with a free PDF ... hired writers, designers and a push to improve here?s what ...Multiply the value of 'a' by 5Is there a way of multiplying the value of 'a' by 5? I've tried 'add a,a' etc. but only get multiples of 2...
... -Tape;639573]Anyway, I guess PUSH HL, POP DE is our ... as opposed to 21T for PUSH HL : POP DE . I'll ... an immediate 16-bit register copy, and PUSH rr : ... : POP rr for ... a delayed copy or a "save until ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... from left-to-right, to copy up a line in segments ... changing SP and doing a PUSH. You can also use it ... problem is the fastest operations (PUSH) fill right-to-left when ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... /> PUSH IY ;copy MV11
PUSH IX ;copy MV10
PUSH AF ;copy MV9
PUSH BC ;copy ... MV8
PUSH DE ;copy ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... /> PUSH IY ;copy MV11
PUSH IX ;copy MV10
PUSH AF ;copy MV9
PUSH BC ;copy ... MV8
PUSH DE ;copy ...Play command on divideHi, i thought I'd have a quick go on divide seeing as i had an afternoon spare.However,i can't seem to get the 'play' command on the screen?. It see…
... code, but I had to copy the assembly; no problem with ... 40300
MIDIOUT PUSH DE
PUSH HL
PUSH BC
L11A3 ...DooM on Spectrum 128kHello my fellow WoS'ers My hope is that you can help me, recently I discovered a DooM clone -esque on the Humble spectrum, - here is a [URL="https:/…
... to 46118 are to a copy of a housekeeping routine from ...
ld bc,$2d2b
push bc
jr getput
40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... push hl
push de
push bc
push af
push ... pop hl ;
push hl ;
...
copytoscratch ;copy to scratchspace called with hl ...copying between RAM pagesSay I'm storing stuff in RAM pages 0,1,3,4 which gets used in 6,7 (which I am) and I might want to transfer up to 7kb at a time (which I do) and I do…
You could do a copy via the registers, which requires ... means. Adapting an existing POP/PUSH copy routine shouldn't be too ...copying between RAM pagesSay I'm storing stuff in RAM pages 0,1,3,4 which gets used in 6,7 (which I am) and I might want to transfer up to 7kb at a time (which I do) and I do…
... to make doing it via PUSH/POP worthwhile given how many ... the all RAM configs to copy directly.
The Speccy ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... /> ;return score to BASIC
Copy and paste the paragraph above ... br /> Insert line 7, then copy and paste the following code ... br /> Insert line 26, then copy and paste the following code ... score at GAMEOVER insert line21, 'push bc; save score'. Replace line ...Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... stack pointer to do a PUSH scroll, you can page in ... pointer and use POP to copy bytes into registers, then page ... the stack pointer again and PUSH to write to it.What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…
... and have a series of PUSH instructions to paint the blocks ... 's actually the list of PUSH instructions that describes the layout ... a list of PUSH instructions and I just copy a run of ...smooth movement in basicWas trying to figure this out myself but i would like to be pointed in right direction now :-). How do I make something move in Basic without gettin…
... hl,(23627) ;VARS
push hl
ld de,(23653 ... b,4
NextVar:push bc
inc hl< ... bc,5
ldir ;copy by,bx,my,mx to ... =sign,my
push bc
push de
call ...Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…
... ,(nn) LD (nn),rr
PUSH rr POP rr
Block Copy/Etc
--------------
{LD,CP ...Optimisations in Exomizer Z80 decrunch codeThis is the 163 bytes old code (simple and optimized): [CODE] ld iy, exo_mapbasebits ld a, 128 ld b, 52 push de exo…
MEMPTR tests for emulator authorsI've recently been completing my MEMPTR implementation and have written a series of tests in [URL="http://homepage.ntlworld.com/mark.woodmass/z80test…
... :
[code]
PUSH AF+POP AF
PUSH BC+POP BC ... ,x
LD BC,x+PUSH BC+POP BC
EI ... it Q, which keeps the copy of the flags register (or ...RAM used / corrupted by +3DOSAs I said previously, [url=http://www.worldofspectrum.org/forums/showthread.php?t=41775]I'm trying to put some games in hard disk[/url] so they can b…
... /> ld bc,$7ffd
push af
push bc
res 4 ... you've got a transtape copy of a missing program), but ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... copy_byte_loop:
ldi ; copy literal byte
... restore destination
push hl ; store destination< ... :
ldi ; copy literal byte
...
