-
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…
An emulator(another on of my projects) Does anyone know how to write an emulator? The emulated computer is very simple (a MK14, infact -also by Sir Clive) and a…
... got the complete SC/MP instruction set?
[ This Message ...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 ...Techy Z80 questions****** Question 1 ****** Take the instruction SET b, (HL). This is broken down (in machine cycles) as follows (according to Microprocessor Technolo…
... ******
Take the instruction SET b, (HL).
How is this instruction broken down ?
LD ... seem to have missed this instruction. It would be very ... instructions, every (IX+d) instruction is exactly 12T longer than ...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 ...Index register subtractionHi, Just wondering if there a way to perform SBC HL,BC on the IX or IY registers. I can't find an op code for it, and my assembler doesn't recognise…
... recognise it as a valid instruction, so I guess this means ...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…
who do you use 1 key b.a.s.i.c?well how do you. is there a web site about it. i do not have the original instruction book. from a 14 year old kid (named matthew.......) [ This Me…
well how do you. is there a web site about it. i do not have the original instruction book.
from a 14 year old kid (named matthew.......)
[ This Message was edited by: miner_willy on 2004-10-25 11:47 ]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 ...There's a bug in my Speccy, Dear Liza, Dear Liza...Hi guys, Just me being annoying again - Can anyone out there in 'Internetland' help me with ideas about what could be causing a bug in my Speccy em…
... in the LDDR assembly language instruction, as the bug prior to ... try and spot where their instruction pathways differ! Sadly though, I ...Mandragore (infogrames) Instructionhas anybody instructions for Mandragora ?
has anybody instructions for Mandragora ?ZX Spectrum 128k - Boxed, As New etc. etc.Hi, Does anyone know how much my ZX Spectrum 128k is worth these days? It's the one with the heat vent things on the side. It's in basically the sam…
... with all manuals, leads, tapes, instruction etc.
Perhaps someone ...Speed up your Spectaculator(or EmuZWin)!Do you want to speed up a starting of your loved emulator? There is an instruction: 1. Download this file: [url="http://www.exetools.com/files/compre…
... loved emulator? There is an instruction:
1. Download this file ...ADCI'm a little confused about how the Z80 manages the ADC instruction. I'm assuming two ADD instructions are performed (am I wrong?!) I can think of 3 …
... the Z80 manages the ADC instruction. I'm assuming two ADD ...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 ...Port 0x7ffd Partial DecodingI'm trying Pitfighter on my emulator and it runs in +2A/+3 mode but crashes in 128k/+2 mode. I traced it down to an OUT instruction which sends 4 to …
... it down to an OUT instruction which sends 4 to port ...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 ...[ANN] Pasmo 0.5.2Hello. I've launched the release 0.5.2 of Pasmo, multiplatform Z80 cross-assembler. Few changes this time: a new warning when the 64 KiB limit is p…
... in the middle of a instruction, all warnings now emits line ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... keyboard support via the IN instruction, enabling machine code routines to ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... keyboard support via the IN instruction, enabling machine code routines to ...Z80 QuestionCan the instruction EX DE,HL be prefixed with DD to give EX DE,IX? Derek
Can the instruction EX DE,HL be prefixed with DD to give EX DE,IX?
DerekLooking for Triplets and Monopolia gamesHi, I looked for two probably Poland games: The first game called Triplets, it's like X and O board game, was written fully in basic, with the instr…
... in basic,
with the instruction on poland language in separate ...Assembler Interest?Any interest in an assembler supporting ACS's UV? I've built an assembler that: supports UV's syntax. has more correct parsing. Microdrive based…
... is still required for undocumented instruction support.
I'm using ...28 retro game EBAY auctions - including CYBERUN ultimate play the game for spectrumVINTAGE NINTENDO DONKEY KONG GAME AND WATCH HANDHELD [url="http://cgi.ebay.co.uk/VINTAGE-NINTENDO-DONKEY-KONG-GAME-AND-WATCH-NOT-SNES_W0QQitemZ8217…
... - Rare spectrum game - boxed with instruction
[url="http://cgi ...instruction TXTs "wanted" but already on WoSI was checking the snappily titled "Instructions that need help typing up" page and noticed a few where I have the original products. I'd done a prel…
I was checking the snappily titled "Instructions that need help typing up" page and noticed a few where I have the original products. I'd done a preliminary scan/OCR of the instructions sheets/booklets and then decided to check the WoS archive for these ...what does the instruction im do?me again with more questions sorry :D finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warn…
me again with more questions sorry :D
finally got myself a book on machine code from ebay. whilst reading it it listed the command im with the warning danger don't use this command ever, which of course made me wonder what the command does.< ...oh man just about to build Athlon 64 and need some questions answered heeelpI've bought a AMD ( venice )Athlon 64 3200 it came with the AMD heatsink fan on the bottom of the fan is a bluey grey square patch. am i right in thi…
... am correct because in the instruction sheet that comes with the ...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 ...
