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BEEPER music compo 10-11 July on Di:Halt partyoh yeah! public pressure organizers [B]Di:Halt [/B]which will take place [B]July 10-11[/B], agreed to hold the [B]beeper music compo[/B]. The rules…
... ! public pressure organizers [B]Di:Halt [/B]which will take place ... -
Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... to get stuck on the halt instruction. I can't find ... with regard to SNA and halt, does anyone have the details ... -
Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... address bus during execution of HALT, beyond the initial M1 ... contains the following code for HALT:
[CODE] case ... the opcode fetch after a HALT could actually trigger paging ... of addresses well before the HALT operation finishes. While I ... -
Top Telly Tip... Halt and Catch FireThe series is set in the early 1980s and depicts a fictionalized insider's view of the personal computer revolution. The show's title refers to the f…
... the fictitious machine code instruction Halt and Catch Fire, which would ... -
HALT: Why always 4ts?Instruction breakdown of halt is like that: PC 4ts. That means it fetches instruction byte from ram which tooks 4 ts and then does nothing and read…
Instruction breakdown of halt is like that:
... or interrupt.
if halt is already read by cpu ... and again to execute the HALT, why it still takes 4 ... /> I mean if cpu executed HALT at cycle 5, and if ... -
"Decoding z80 Opcodes" (http://www.z80.info/decoding.htm#intro) - Incorrect HALT Opcode?Apologies if this is a dupe but I searched within the forums and couldn't find anything. I've been working on a z80 emulator (for academic and rec…
... seems to incorrectly specify a HALT opcode as 0x7[i]7 ... -
Which Emulator has a menu option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT?Which Emulator has a menu option / debugger option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT? I tried SpecEmu and Fuse, b…
Which Emulator has a menu option / debugger option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT?
I tried SpecEmu and Fuse, but I can not find a option for doing this in their debugger. -
Short Z80 QuizQ1) Which program gives different result ? A) XOR A ADD A,A B) XOR A ADC A,A C) SCF ADD A,A D) SCF ADC A,A Q2) What is the equivalent of NEG …
IM 2 interrupts and smooth scrolling - easy peasy!Okay, been fiddling around with IM 2 and have actually mastered (I think) how to use IM 2! Now I run my game Ragnar Revival in IM2 and use HALT to sy…
... Revival in IM2 and use HALT to sync screen drawing (dumping ... manipulation (a scrolling text) using HALT, and one without IM2 and ... HALT.
Here is the ...Game loop design?Having some thoughts on how to design the game loop and could do with some hints and tips from folks who have done it before! It's all about how to …
... ,RET interrupt function, so that HALT can be used to time ... /> jr z,nosprdraw
halt ;Wait for interrupt
call ...Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... waits till the next interrupt (HALT) so that it is in ... /> LD (OKTOFLIP),A
HALT
JP MAIN ...Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…
... /> LD A,0
MLOOP HALT
LD (SCRPOS),A ;SCROLL ...Zaf-forth to Z80 compiler Build 5This forth like complier is changing almost every day with new items been added. Here is a new Zaf-forth word add it the sptword.fth file - which is…
Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…
... with screen refeshing, interrupts and HALT command, but I still dont ...name that game It was definately a budget release a kind of future sports games with two robots maybe on wheels maybe floating where you had to shoot the ball int…
... you would slow to a halt and couldn't move till ...Battle ValleyHope someone can help. I used to love this game, but I've forgotten how you 'halt' the helicopter (or tank). I know you have to stop the helicopter -…
... I've forgotten how you 'halt' the helicopter (or tank). I ...Tape stopsHi, I'm trying to sample a tape, but it stops in the middle of the tape. I've tried it on 4 different players, and it stops on all of them. I've t…
... again it grinds to a halt almost immediately. It does this ...Hard drive imagingThe IT technician at the school I work at is having problems with the software that we use to distribute hard drive images to multiple machines at th…
... whole network grinds to a halt.
Can anyone suggest ...my dodgy speccys.hi people, i was wondering if i could engage some opinions / thoughts / ideas of anyone, regarding my current "fixing up" of my speccys, since you s…
... tape player slows to a halt within a second or two ...R Register, Contended RAM and ClonesHi. I've had a quick look at the CSS FAQ but didn't spot quite what I'm looking for (also the CSS FAQ doesn't have much detail of the clones - there …
... as there's a single HALT.
So my questions ... without the contended RAM the HALT would take place earlier, essentially ...Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…
... ),hl
lp1:
halt ; Wait for screen refresh every ...128k Page FlippingOver on adverts, AOwen wrote the following: [quote=aowen]The trick, as I understand it, is to redraw the whole screen each time at #c000, but point…
... to wait for a refresh (HALT) until swapping screens, when is ...Manic Miner port on Wiicade? Want to assemble a team?Oh, feel free to move this topic, forum gods. It IS development, but for Flash instead of the Spectrum. I'm a 15-year-old American with an obsessio…
... , scrolling slows games to a halt and there's a little ...My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... />
NextPass:
halt
halt
halt
halt ;just a delay (1 ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... />
[B]wait[/B]
halt ;halt when all row is completed ...Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…
... /> [CODE]$8000 DI
$8001 HALT
$8002 EI
$8003 ... ]
Place breakpoints on the HALT and RET instructions. Set PC ... will now freeze at the HALT instruction because no interrupts are ... debugger is stuck on the HALT instruction. Press "step over". ...
