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Problem with BC corrupting after DJNZJust for fun, I'm messing around trying to get the level maps from Lemmings to display on the screen with machine code. It's been ages since I did an…
... FOR 8 LINES
LOOP2 PUSH BC ; STORE THE LINE COUNTER ... -
Text scroller and custom fontYesterday I was testing this text scroll routine taken from Jonathan Cauldwell's Intro Maker (labels have been inserted to allow partial code relocab…
... displayed at this height
PUSH HL
LD B,008 ...
L_35420: PUSH BC
PUSH HL
LD B ... -
Help! I'm learning Machine Code...Having decided to take the plunge and learn to machine code a while ago, I have started in earnest using the much recommended 'Mastering Machine Code…
... , write a program which will PUSH every number between one and ... ) on to the stack (using PUSH AF) and then somehow manage ...
LD A, B
PUSH AF
CP 32h
I writ a thingHi cuties I wrote my dissertation on Spectrum demo scrollers. http://CL4.org/_dissert.pdf P.S. Can we fix WoS so that the permission slips are vis…
Hi cuties
I wrote my dissertation on Spectrum demo scrollers.
http://CL4.org/_dissert.pdf
P.S. Can we fix WoS so that the permission slips are visible again? Come on. jesus. christ. omgNEW GAME - Thunderturds 2 (16K edition)[img]http://forum.retro-computers.co.uk/uploads/default/original/1X/4b5e63f7039987ca157e693f5ab4eb278df60038.gif[/img][img]http://forum.retro-compute…
... affair where you have to push coloured buttons in the right ...Let's copy buffers!Figured I'd do some double buffered graphics, so I can render for several frames before displaying stuff. Yes, I mean on a 48k speccy, so no 128k spe…
... push hl
push de
push bc
exx
push de
push ... bc
push ...Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
... 1 just resets when you push the button and the DivMMC ...Faster Manic MinerHey, dudes. I've been fiddling around trying to wring more speed out of this game recently. I've replaced the LDIR buffer copying routines with s…
... be. I used a POP-PUSH routine for the pixel buffer ... another reasonable gain over POP-PUSH but the problem of the ...Z88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…
... for CALLEE functions)
PUSH HL ; push return address back to stack ...Wolfenstein 3D is finally fun!Alright, so Wolfenstein 3D is still popular with some people, and was very popular and innovative when it appeared, but I played it after I played Do…
... damage than bodyshots, you can push barrels around to set traps ...program upload via Interface 1 RS232 from PC/Mac/LinuxHello. I've made good on a promise to my 13 year old self and have been recently learning spectrum z80 coding. I can happily build a program (as …
... am told that you can push code from a PC/Linux ...Spe 128k +2 problem, can anyone help?Heya folks, I was trying to get back into real Speccy gaming for a change, since I hadn't been using my grey +2 in a year or so. Last time I did, it …
... cable here) and whenever I push any key (apart from a ...Always Tired Lately.I am now 40 and lately I have noticed that my energy levels are bloody awful. I find it hard to get up in the morning. In the evening after work, …
... lazy and have to really push myself to do anything. At ...Running out of fingers in AssemblyDear all, Still trying to learn Assembly and have put a few routines together. However, as my routines become a little more involved I find myself…
... of dealing with this issue? Push and Pop will help I ...Project: ZX OpusHello my friends, I have been in need of a push lately so I thought if I post some of the work for this project here you guys (and gals) can help me …
... been in need of a push lately so I thought if ... (and gals) can help me push though the blocks along the ...MK14 keyboard replacementI'm the proud owner of a Science of Cambridge MK14! It seems fully functional, but the keyboard is a disaster - some keys don't seem to work at all, …
... .co.uk/p/click-effect-push-switch-ff87u"]Maplin[/url] seems ... conductive rubber by 1mm real push buttons that can be put ...Turning an autofire switch into a buttonDear WOS, I have a slightly dumb question, but I think it needs asking: Can I turn an on/off autofire switch (which I salvaged from a dissected Ch…
... ) into a dedicated momentary button (push the button = AF on, release ... wire up a Sanwa/Seimitsu push button to the ON terminal ...sdcc inline assembly wtf..So, I'm trying to get division to work. By googling I've found one division algorithm that's quoted in several places, but can't seem to get it to wo…
... hl
pop bc
push iy
xor a ... hl
pop bc
push iy
ld de ...Recommend games that don't need the ROM ?I'm looking for a few games that: * Are freely available as .sna files * Do not need the ROM at all * Have motion on screen after snapshot resta…
... simple coding (e.g. no PUSH and POP to copy memory ...ALIEN (Mindgames) Bugfix and Improvement.[code]ALIEN (Mindgames) [ZX SPECTRUM] BUGFIX & IMPROVEMENT by Ersh 2016-10-29 The following bugs are fixed: [BUG] INVENTORY BUG WHEN SWITCHING …
... an Action' routine doesn't PUSH/POP THE IX register holding ...Why no ribbon cablesOne question that has always bugged me for years. Why were all hardware interfaces for the Speccy direct push on to the edge connector? Wouldn't a …
... interfaces for the Speccy direct push on to the edge connector ...Clamping Speccy InterfacesThere are a huge number of broken Speccy interfaces available . I came across one on Ebay recently said to be "partly working" or similar .Why are th…
... the answer which is that push fit "Speccy and interface combos ... : gamers however decided otherwise and push fitted on their interfaces to ... meet this gaming need.This push fit idea became the accepted ... back so as to "friction push fit" into a sawed grooved ...What should your speccy have come with ?:) I was thinking about this earlier. What changes should of been made to the Speccy when you purchased yours ? Realistically this topic really…
... 2500 or 3000 at a push. Obviously being in the Basic ...More basic assembly stuff!I've been figuring out some more stuff using CALL and DEFB but this has me a bit stumped. [code] ORG 33000 LD BC, 16384 PUSH BC CALL GO RET …
B.C. Bill 1bit tribute art.I love 1-bit monochrome pixel art and a couple of days back I found a few unreleased c64 scraps from 10-15 years ago. Perhaps not anything worth rele…
... but I got inspired to push some 1-bit pixels again ...
