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Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... accounted for every single T-state required by every single instruction executed. This ... to update by XORing a single byte in the display file ... -
Completely free games?Hi, I would like to know if there are any open source or completely free games for ZX Spectrum. Or at least some other free programs without any lin…
... every time I used this single instruction. That's too insignificant to ... -
Completely free games?Hi, I would like to know if there are any open source or completely free games for ZX Spectrum. Or at least some other free programs without any lin…
... every time I used this single instruction. That's too insignificant to ... , but there are plenty of instruction combinations in there that will ... -
Using the stack to blit bufferI was using a ldir to blit my back buffer to the screen RAM, and it was working pretty well if not rather slow. After reading about using the stack …
... a second screen with a single instruction but I suppose it's ... -
ProTracker manual/instruction in English?Hello. A friend of mine would like to start making AY music on ZX Spectrum. In this purpose he'd like to have a ProTracker's instruction/guide/manu…
... 't think there is even single instruction in Russian :-)
I had ... -
Contended memory and TritoneQuick question regarding contended memory...<div style="font-style: normal;"><br></div><div style="font-style: normal;">I'm testing ideas with Triton…
... in contended memory then every single instruction has errors and that constantly ... idea was to play a single row, stop and do stuff ... -
Copying a single character from one place to another?[code] ORG 33000 LD A,8 LD HL,16384 LD BC,256 LD DE, 18432 LOOP: PUSH AF LD A,(HL) LD (DE),A ADD HL, BC POP AF DEC A JR NZ,LOOP REST […
... />
but there is a single instruction which does the same as ... -
ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …
... all GPIOs mapped to one single port. So when you ... 8 or 16 bits with single instruction. Something like:
1. ... detect MREQ (2-3 instruction assembly loop looking at appropriate ... the output puns (1 assembly instruction)
Or something like that ... -
Last Problem in Chapter 3 of Toni Baker's Mastering Machine Code on your ZX Spectrum.Chapter 3 of this great book is all about how to use the registers and covers the operations LD, ADD, ADC, SUB, SBC, INC, DEC, SCF and CCF. The la…
... . It turns out that a single instruction was being ignored by the ... -
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…
... shifts and rotates in a single instruction which Z80 can't do ... -
A clever method of using a single 8-bit register to be used for two things at a timeI don't know if this is the way the SAVE routine in the Spectrum works. Anyway, this is what I've learned today. I've been commented the disassembly…
... I quickly found the RL instruction that supposely shifts each bit ... the RL instruction.
The answer is: a single 8-bit ... /> Then, a RL L instruction. This instruction loads whatever it is in ... -
Where can I get instruction manuals for games-Where can I get instruction manuals for games Fist II and Codename Mat II? Please answer this time!
Where can I get instruction manuals for games Fist II and Codename Mat II?
Please answer this time! -
Instruction Manual for FIST IIWhere can I get the Instruction Manual for FIST II, but not Way of the exploding Fist II, I mean Mastertronic's, not melbourne house's. :(
Where can I get the Instruction Manual for FIST II, but not Way of the exploding Fist II, I mean Mastertronic's, not melbourne house's.
:( -
[NEW]: Spectaculator 4.0Hi everyone, Finally managed to finish it... enjoy! --- [NEW]: Spectaculator 4.0 Spectaculator is a Sinclair ZX Spectrum emulator for PCs runnin…
... should always have
been single select.
o Spectrum ... to the OUT (n),A instruction which stopped Digi Synth and ... -
Question about CP Z80 instructionSorry if this is the wrong folder, but it seems the most appropriate. When performing a CP instruction, is the P flag set when the compared values …
... />
When performing a CP instruction, is the P flag set ... -
Official Instruction ManualLooking for the official instruction manual, as if you wouldn't already know, got the old Spectrum from my mums the other day and would like to get b…
Looking for the official instruction manual, as if you wouldn't already know, got the old Spectrum from my mums the other day and would like to get back into some basic and also check programs i had done almost 20 yrs ago -
Game flyers and instruction sheetsI'm in the middle of a massive scanning drive, the end result of which is loads of flyer sheets and instruction sheets for various games. Some of th…
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…
... addresses, variables, expressions, sysvars
single step, run to, go to ... 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…
... addresses, variables, expressions, sysvars
single step, run to, go to ... keyboard support via the IN instruction, enabling machine code routines to ...Various Games to TradeHi Another list (this time with slightly rarer games =D), I am looking to trade for adventure games e.g. text adventures on 8-bit platforms (infocom…
... plastic wallet with disk and instruction paper
17 Draconus ... plastic "clamshell type" case with instruction booklet
26 Galaxy ... plastic "clamshell type" case with instruction booklet
67 Crete ... Case Yes Includes the music single on the B side< ...Developing the Spectrum ROMI'm working on some Z80 assembler for a Z80-based single board computer that I'm building. For the things that don't poke my hardware, I'm using a Sp…
... assembler for a Z80-based single board computer that I'm ... I can debug code one instruction at a time, which is ... debugging would be accomplished by single-stepping actual hardware (and a ...Slightly obscure question about a punk single artwork from the 70'sI am planning my next couple of tattoos. They are going on either side of my head. I already have in mind, kinda, one side - an almost abstract style…
... the cover of a vinyl single that I used to own ...Tetris by Doctor Spin singleFor some reason, I got remembering the 1993/4 single of Tetris by some bloke called Dr Spin. I remember having a copy at the time but I can't find …
For some reason, I got remembering the 1993/4 single of Tetris by some bloke called Dr Spin.
I remember having a copy at the time but I can't find it now - does anyone have a copy they could send me please? Thanks in advance.LERM Transpack 2 Instruction ManualSorry I hope I have posted this on the right forum. Can anybody help I have an original LERM Transpack Tape but I have lost the Instruction Manual o…
... but I have lost the Instruction Manual over the years, can ...IM instruction - danger Will Robinson!!! :)Here's something I've wondered about for years: On page 102 of "Mastering Machine Code on your Zx Spectrum" by Toni Baker, there's an instruction li…
... Toni Baker, there's an instruction listed as IM.
... /> The description of the IM instruction says:
DANGER ... !!! Under no circumstances use this instruction!
What exactly ... does the IM instruction do?
Can ...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…
... now freeze at the HALT instruction because no interrupts are occurring ... is stuck on the HALT instruction. Press "step over". It's ... I get past the HALT instruction is to remove the breakpoint ... (ie: $8001).
5) Single stepping in the debugger does ...
