-
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... in using them as system or user variables.
Or not using ... 40 cycles per pixel on spectrum screen. Not to mention lookup ... ]
Address calculation for the spectrum screen is well over 80 ... />
To sum it up: spectrum hardware (as well as firmware ... -
Recommend a dev environmentIt's been a while since I last wrote any Z80 assembler - must be over 20 years, and since I wrote any spectrum Z80 assembler more like 25 years. I n…
... supplying a macro system that can hide local variables so that it ... you need to separate the variables area from the code ... the code you reuse for variables and transfer their locations / ... complexity do exist on the Spectrum and without linkers available, they ... -
Drawing 3D grids in Basic...This is probably very simple for someone who feels comfortable with Math, but it's driving me crazy... Let's say I want to draw a grid of 16 by 16 s…
... to avoid using keywords as variables, to maintain compatibility with those ... able to use keywords as variables ... (long rambling diatribe deleted)
Spectrum keyword system I don't have ... -
RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... by Ian Beardsmore from Your Spectrum issue 7, September 84.
; so look at the system variable PROG
dec hl ... by Tony Samuels from Your Spectrum issue 13, April 85.
ret
; TEXT VARIABLES
; Used by the 64 ... -
SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... Samuels
; First published Your Spectrum issue 20, November 1985.
; so look at the system variable PROG
dec hl ... ; leap back to the operating system.
push af ;
... bit of space for some variables.
atflg:
defb ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... code by Tony Samuels (Your Spectrum issue 20, November 1985)< ... /> ; and Ian Beardsmore (Your Spectrum issue 7, September 1984).
; POKE the UDG system variable and store the UDGs ...
ret
; variables
chrad:
defw ... -
DivIDE Real Tape?Am I going mental? I can't get my speecy to load from tape with divIDE installed. So my question is.. How do you load from a real tape when your div…
... 537574]The divIDE Operating System takes over the Spectruum ROM ... can be changed (if system set basic variables).
All ... DIVIDE hardware automatically connect external system after jump CPU to adress ... is usable in all ZX Spectrum models (ZX48/128/+2/+ ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... operating system or from the library (if running on unmodified zx spectrum ... also be defined with member variables and pointers to functions. here ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... Samuels
; First published Your Spectrum #20, November 1985.
... ; so look at the system variable PROG
dec hl ...
push af ; operating system.
call doit1 ;
... of space for some
; variables.
atflg:
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... by Ian Beardsmore from Your Spectrum issue 7, September 84.
; so look at the system variable PROG
dec hl ... by Tony Samuels from Your Spectrum issue 13, April 85.
ret
; TEXT VARIABLES
; Used by the 64 ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... special placement syntax for declared variables?
One example ... variable on top of the system variable to read lastk ... seperate sections, but for Spectrum programming that is not really ... port some of the existing spectrum libraries in z88dk without ...binutils questionSince there's a few people using binutils these days I thought I'd give it a go and see whether it solves my hunt for a replacement assembler/librari…
... special placement syntax for declared variables?
One example is ... variable on top of the system variable to read lastk as ... memory banks of the 128k spectrum, eg. One section for #c000 ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... Spectrum issue 7, September 1984.
ld hl, (0x5c53) ; store system ... done!
; -----------------------------------------------------------------------------
; LOCAL VARIABLES
AT_FLAG:
defb ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... Spectrum issue 7, September 1984.
ld hl, (0x5c53) ; store system ... done!
; -----------------------------------------------------------------------------
; LOCAL VARIABLES
AT_FLAG:
defb ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... Spectrum issue 7, September 1984.
ld hl, (0x5c53) ; store system ... done!
; -----------------------------------------------------------------------------
; LOCAL VARIABLES
AT_FLAG:
defb ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... Spectrum issue 7, September 1984.
ld hl, (0x5c53) ; store system ... done!
; -----------------------------------------------------------------------------
; LOCAL VARIABLES
AT_FLAG:
defb ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... Spectrum issue 7, September 1984.
ld hl, (0x5c53) ; store system ... done!
; -----------------------------------------------------------------------------
; LOCAL VARIABLES
AT_FLAG:
defb ...A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
[QUOTE=Timmy;594378]Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how easy it actually is. (Actually I've already published this one some time ago, but this ...Anti-piracy measures on Speccy games - What games have it?I was looking at the JSW card which gives you the grid location system for protecting the game against simple forms of copying, and I know that ATF h…
... randomise itself from the 'FRAMES' system variable - thereby giving an effectively ... since the last reset the Spectrum was waiting for keyboard input ... the loader and POKEing those variables to zero just before the ...Anti-piracy measures on Speccy games - What games have it?I was looking at the JSW card which gives you the grid location system for protecting the game against simple forms of copying, and I know that ATF h…
... randomise itself from the 'FRAMES' system variable - thereby giving an effectively ... since the last reset the Spectrum was waiting for keyboard input ... the loader and POKEing those variables to zero just before the ...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…
... Samuels
; First published Your Spectrum #20, November 1985.
... ; so look at the system variable PROG
dec hl ...
push af ; operating system.
call doit1 ;
... of space for some
; variables.
atflg:
Altera CPLD vs Xylinx FPGAI will dig into the world of FPGA's, mainly to find something that can replace one or more GALs for my current and new projects. And it's never bad t…
... twice the resources of the Spectrum ULA).
Rough ... /> XC95288 - 288 macrocells - about 2 Spectrum ULAs.
It gets ... since there's lots of variables - for example the Spartan ... microcontroller is essentially a small system-on-a-chip. Most 8 ...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…
... backed off right back to Spectrum ROM speeds. In this case ... are several tuneable variables that define the Spectrum loading system, the most dominant ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... OPEN #3;"t" : LLIST. Spectrum freezes with a black border ... t" : LLIST makes the Spectrum freeze, and ZXS32 disconnect. ... solid body of the system, but just and add ... workspace or in the channels/variables area.
I ... unable to restore the system by power off/on ...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…
... (defs), global integers (defw), local variables (items pushed on the stack ... used to write your operating system (linux, windows, etc), it ... assembly. The fzx proportional font system is in asm. Much ... assembly and details of the spectrum hw. When you're ...Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…
... at the directions above for system wide install you will ... must first set some environment variables to point at the ... bss/data sections (the global variables) so globals will have correct ... From z88dk/libsrc: "make sp1-spectrum" followed by "make install"
z88dk v1.99A Release Candidate[b]Z88DK VERSION 1.99A RELEASE CANDIDATE[/b] Download from: http://nightly.z88dk.org/Releases/ The release candidate will be available for te…
... system-wide installed
export PATH:=/home/reidrac/src/spectrum ... export ZCCCFG:=/home/reidrac/src/spectrum/z88dk2/lib/config
... export Z80_OZFILES:=/home/reidrac/src/spectrum/z88dk2/lib
[/code ... have any of the env variables.
So ...
