-
More tea, vicar on disk?Hello, can somebody help me putting the 128k version of this game on disk? The 128k version is free available from Jonathans Webseite. However, the g…
I think, you want a Universal Loader. I have not tried it, and I learn how to crack game copy protection, but if it makes a jump (JP) to ROM, not the CALL, so the start address is stored before it in HL register. -
generating a pre-defined list in an un-defined sequenceI've decided to become a drunkard, to which end I've been drinking a whole bottle of beer in one day (whereas normally I'd make it last 2 or 3 days).…
A galois lfsr is simpler to implement. Here's a version ... /> dec hl ; alter lfsr range to include 0
; only ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... and write some little routines to test how dec operates on the ... registers.
I wanted to make ... , I dont have to move any register values around to get PRINT USR ... that later once I understand how to do it lol...
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... learn to load a value into a register you should learn how to ... do bit manipulation on a register... ... />
Being able to manipulate register values on a BIT level ... by asigning the values 0000 to register BC
...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... short diversion and look at how to change the border color using ... a change... before getting back to register commands...[/I]
BLACK ...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... br /> [SIZE="1"](runs to get popcorn)[/SIZE][/QUOTE]
to open (2) into Register A.[/I]< ... RST 10
C9 ; RETurn to Sanity
[/code]
... I am asking about how to do data statements god ... called with the A register holding a valid stream ...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... I want to open (2) into Register A.[/I]< ... RST 10
C9 ; RETurn to Sanity
[/code]
... I am asking about how to do data statements god ... Heres an unrelated question, how do I do DATA ... its a pesudo memomic according to the book...[/QUOTE]
Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... This involves a trip to the A register ("sbc a,a ... Then you have to wonder how that bool return value ...
; write digits to string
; ix ... />
How is the compiler to know how to call this untyped ... the (de)hl register).Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... This involves a trip to the A register ("sbc a,a; and ... Anonymous;721316]Then you have to wonder how that bool return value ... cleanup time, depending on how much needs cleaning up).
How is the compiler to know how to call this untyped ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... in the wiki[/URL] about how to read the keyboard using the ... id=library:input#code_example"]shows how in_GetKey()[/URL] can be run ... the keypresses to that address. I will show how the same ... simple programs) or you could register the two (or more) interrupt ...Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... to PAUSE_1 which takes the delay from the BC register ... the USR version has to evaluate the IF and ... of the ROM routines and how to call them download:
... that they are close to the start of the ... />
--
To be entirely accurate, values can ...Idiots Guide......To machine code, or assembler language...whatever the appropriate term is Basically at this stage I want to fiddle about and try and get used to…
... asm minus the headache of register allocation. [b] An ... training did not teach them how computers work.
[/ ... to learn about how to get a skeleton codebase together, how header files work, how to ... but is close enough to asm to allow getting performance ...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... bytes are,
then learn how the z80 processor can manipulate ... print one to the screen
then learn how the screen memory ... works
then learn how to do colors
The ... load
A is a register, part of the z80 processor ...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... 't figure out how to use defb to be like a ... ld (23606),hl ;font points to data
ld ... ld de,dat ;point DE register to start of data string
to print
call 8252 ... font point
ret ;return to BASIC
...How to print logo onto screen at chosen coordinates?Hi, I've just got back into zx spectrum games after all these years and after seeing some of the great games on here I would like to start learning p…
... most difficult thing to me was learning how to understand the spectrum ...
The register pair HL is often used to store memory addresses ... square (also called an attribute) to write to
the ... line of the attribute to write to, 0 to 7.
New Game: YAHTZXHi all, Well, it?s taken me more than 3 years, but I think I?ve finally got there. Here is YAHTZX, a 100% assembler version of Yahtzee (? Milton Bra…
... />
I'd completely forgotten how to play it - I recalled it ... remembered that I had to choose what roll to register.. :roll:
to do the computer A.I ... yet, but it obviously has to makes certain choices such as ...Show some love for the Magnum Light GunI remember the reviews were mixed, but in hindsight I suspect the negativity was a result of the quality of some of those initial six games. I recal…
Depends how it's read. If ... the exact position, you had to flash the screen brightly, ... horizontal position, you had to time how far along that scan- ... doubt it was fast enough to register scanlines. Now if you ... you might be able to get it to work, but you'd ...Scene+ (cassettes for sale from the Spectrum User Club from Austria and Germany)I am selling some of the issues in cassette of the Austrian Spectrum Club (also German, I think!), most of them are quite old and hard to see. They i…
... I will probably have to register in that page to store the photos ... , but still I will eventually see how ... it works ;)
I will also try to announce ...Alkatraz Protection System - "How to" and compo?I'm thinking about writing a "how to" regarding the [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0020807"]Alkatraz Protection System[/URL].…
... been tweaked in order to hide some of the attribute ... it didn't seem to want to register the second time you ... but then you have to spend more cycles during ... - ta :) Now I know how it works I might have ... just have to remember to set the paper to the same colour ...Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…
... for alignment:
;1st - to get to IMER during INT,
;2nd ... observed on "yellow" Scorpion.
; register C contains
; #11 for ... inc d ; nz is used to say "unrecognized pattern"
ret ... did not bother). I know how to make it run in a ...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…
Here's a challenge... how about light gun support.I ... having a cursor on screen to represent the gun sight would ... easy enough - but how to make the game register that would be the ...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…
Here's a challenge... how about light gun support.I ... having a cursor on screen to represent the gun sight would ... easy enough - but how to make the game register that would be the ...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…
Here's a challenge... how about light gun support.I ... having a cursor on screen to represent the gun sight would ... easy enough - but how to make the game register that would be the ...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…
Here's a challenge... how about light gun support.I ... having a cursor on screen to represent the gun sight would ... easy enough - but how to make the game register that would be the ...Hungarian notation for asm - Yes or No ?There is thing called hungarian notation - https://en.wikipedia.org/wiki/Hungarian_notation Basically it is all about using prefixed indetifier to i…
... I would like to see how you document yours ... br /> ; -----------------------------------------------------------------------------
; Specialized algorithm to choose defeated computer's last ... for each parameter, how every register will be modified, ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... if I can work out how you've done it
