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ESXDOS 0.8.5 and .Z80 on +2B or +3Last week I received some .Z80 snapshot files from a DivMMC EnJOY! user to test. These files didn't work on his ZX Spectrum +2B. [URL="http://benophe…
... snapshot of the otherwise compatible program is made when it it ... />
I checked the PC (program counter) in the Z80 files Ben ... -
+128 with usr0 in menu screenIve just watched a video of a guy with a spectrum and on the loader menu i think under calculator the menu had an entry for usr0,anyone aware of this…
... because the instruction sets the program counter to 0, which is where ... -
Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... whenever the Virtual Spectrum's program counter tries to execute the code ... definition of what a running program does, at least on a ... -
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…
... like "DEC PC", setting the program counter to its previous value so ... -
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…
... this correctly, and the wrong Program Counter (PC - 1, specifically) must be ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... from which the command came (program counter address is payload of the ... .
Once the program would be loaded to ZX ... giving starting address of loaded program as address. The monitor ... that address. And the program would execute until it reached ... -
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 …
... ’s what happens in your program after you load BC with ... . Then it loads the PC (program counter) with the address of the ... . This instruction loads the PC (program counter) with the value from the ... that address, thus launching your program into the not-so-great ... -
Disabling the ROM without removing the whole thingHi! I've got my hands on a non-working issue 6a. I suspect the ROM may be bad, but other things may be faulty as well. I've read that in an otherwis…
... push the contents of the program counter onto the stack, and jump ... -
Speedlock Source CodeOooh - found some interesting Amstrad/Spectrum Speedlock source code over at [url]http://web.archive.org/web/20070126232648/http://andercheran.aiind.…
... a built-in Transfer Utility program, which has
a comprehensive ... menu, and then adjusting the program counter to $e092:
https ... not sure if altering the program counter to $e092 is sufficient for ... -
shadow regs musingIn the process of optimising some assembler, it occurred to me how great it would have been if the Z80's shadow reg opcodes had been a bit more fully…
... of register files including the program counter. But it was too complicated ... -
ripping music out of a machine code demoi want to rip the first track out of this demo. unfortunately i dont know how its called. ive tried randomize usr to various locations but it either …
[quote="digital;943488"]whats the pc?[/quote]
Personal Computer
Police Constable
Politically Correct
Program counter (cpu) -
How are LAST-K and FLAGS set on a Real Spectrum?Hi, I'm writing a Spectrum emulator and I've got Horace and the Spiders working (with the wrong colours and no sound) but when I boot into ROM non…
... Z80 responds by pushing the program counter onto the stack and jumping ... -
New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…
... area)
3: @23296-23552 program will scan for continuous block ... buffer, if no space exists program will error
4 : @16384 ... banks.
Checks stack and program counter and if in upper mem ... -
How to write a simple BASIC* horizontal scrolling game (Tutorial) [b]How to write a simple BASIC* horizontal scrolling game[/b] In this tutorial, we will be talking about how to write a simple BASIC* horizont…
The Program Counter has already been incremented past ... -
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…
... what is happening in your program more than you can imagine ... values of the registers, stack, program counter, etc. will change before you ... -
Is it possible to make the Z80 execute a bizarre instruction?What happens when it gets an unrecognised instruction OP Code, I mean something following a #ED that isn't one of the undocumented instructions eithe…
... in the value of the program counter. But it will not harm ... . Just because BASIC or a program may be waiting for user ... instructions, but with HALT, the program counter is adjusted to point to ... -
New Utility Z80onMDR - Transfer Z80 snapshot to Microdrive CartridgesWith the growing popularity of the excellent vDrive [url]https://vdrivezx.com/vdrivezx/[/url] I've adapted one of my utilities to create Microdrive …
... had stack in screen and program counter in stack among other interesting ... -
Static vs stacked local variables in z88dkHello everyone. I'm doing a program for Spectrum 48KB with z88dk v1.8 (XX Mar 2008), and I eventually discovered that if your local variables in fun…
... 'm doing a program for Spectrum 48KB with z88dk v1.8 (XX ... local variable as a decreasing counter in a 'while' loop, the ... -
z88dk hates me =(Hello there my fellow WoS'ers Under the power of darkness I was about to settle in and play with some SP1 sprite handling (as printf is simply NOT f…
... hello world" program
[b]Simple Program: program.c[/b]< ... -DPLUS3 -lm -create-app program.c >build.txt[/code ... black,7);
store_menu("Binary Counter\0", 10, 15, cyan, ... and then re-installings z88dk, rebooted the machine and ... -
Installing Z88DK Z88DK INSTALLATION Z88DK is distributed in two parts. The first part is the platform independent bits (including source and z80 libraries) and th…
... program that can connect to sourceforge and download the
latest z88dk ... />
Run the setup program. The default installation settings are ... program from the splib2 site. In my c:\CVS\z88dk\ ... used Notepad to copy this program into stars.c
... -
z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... want to start to program games with z88dk, but I need a ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... to other machines supported by z88dk. Write your game for ...
It is integrated into z88dk which means you can call ... across all z80 platforms in z88dk.
- #defines for ... ! For this reason your program should draw sprites first before ... -
Graphic equalizer m.c. program neededBack in the 90's I had a full-screen attribute equalizer that was simple, yet very impressive. We used to listen to Vangelis or Jean M Jarre by conne…
... help me recreate this fine program.
English:
< ... value of each of the counter is different from zero, ... decrement that counter by one. This way all ... we can use an additional counter to perform this operation several ... -
Learning C for z88dkI've never gone much beyond basic, a little bit of z80 assembler, and some Delphi which I had lots of help with. I've forgotten 99% of what I learne…
... examples that come with z88dk, it's not quite ... tutorials about or planned for z88dk?
I' ... common or standard keywords in z88dk, with comments in the ... but it seems like z88dk has so much stuff that ... make a Hello World program has stumped me beyond ... -
Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... Z88DK, so here goes:-
This example sprite demo program ... memory!");
//exit program
exit(0);
}
//exit program
exit(0);
}< ... ).
But the program crashes.
Any ... -
Z88DK tapfile creation questionHere's another question. The game I've just started working on (Sid Spanners 3), I'm concatenating the following tap files together, to make a big ta…
... tapfile created by Z88DK containing the main compiled program
I ... by the 'appmake' tool of Z88DK in "sidspan3.tap"). It's ... option, so I wonder can Z88DK do something similar? I looked ...
