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TZX/Taper headachesI've been doing a stocktake of all my Spectrum stuff, most of which I bought in a job lot a few years back, and there's a whole load of covertapes in…
... of all a "custom data" block with Flag value ... as a standard BASIC block.
The BASIC program contains ... a series of Z80 instructions memorized as DATA ... values, which are read and loaded in ... -
How to store and recall a "window"?I would like to memorize and then restore a rectangular portion of a screen, pixels and attributes. To make things easier, this "window" would be sit…
... following program in ZX-BASIC, pasting the DEFB data from the ASM ... = z TO z + 11
READ r
POKE n, r ... -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... when the CPU tries to read from it. So it should ... ’ the normal ZX Spectrum ROM (BASIC). Then load from tape (or ... developed a program to write data to the relevant output port ... -
Understanding tape edgesI've never done any tape reading code. But I've read about these "edges" on multiple occasions. Trouble is I don't understand what they heck they are…
... s auto-synchronizing, too. The basic algorithm is as follows. You ... . If you don’t read any new value from the ... a new value has been read from the port, you ... a zero. After you’ve read eight bits, you write ... />
Thus, the maximum data rate you can get is ... -
What to write / programme?I've been trying to get back some motivation to write something in machine code for the Spectrum. I don't feel I am organised enough to write somethi…
... sense in learning how to read the keyboard or move a ... understand something at a very basic level before I can begin ... what a memory address, register, data/address bus, etc. were. It ... -
run statement clears dimensional arraysis there any way round this? id rather not type goto 1 all the time, to stop this
... 't affected by CLEAR, then read from those locations on running ... might as well put DATA statements in your BASIC in that case ... -
run statement clears dimensional arraysis there any way round this? id rather not type goto 1 all the time, to stop this
... t affected by CLEAR, then read from those locations on running ... might as well put DATA statements in your BASIC in that case ... the array data could vary between runs though. Self modifying BASIC to ... store stuff in the DATA? -
how can we load +3dos files in assembly?is there some way to load +3dos files in assembly, like calling bios routines somewhere? (like defining in registers the filename string address in m…
... instead of 1.
- Shared read means that you can open ... , or using two handlers to read different parts of the same ... disk motor, page ROM0/RAM0 (BASIC ROM and normal spectrum memory ... do another disk operation your data will be overwritten.
- The ... -
One question...Is it all worth it?
... Basic or any other language. The actual mechanics of arranging the data ... into Fuse using 128 mode Basic as its easier to do ... is too damn small to read even at 3x size.
XYZ - a multithreaded GUI operating system for SpeccyToday I'm re-starting my unfinished project. A few years ago I wrote the yx multitasking kernel (which includes RAM/ROM versions, threads, memory man…
... "tiny socks") with basic commands: connect, disconnect, read and write but no ... , computer name, and other config data) from the PC.
Any adventure game frameworks written BASIC ?I remember INPUT published a simple adventure game, with about ten locations. It was all written in BASIC, but it provided a program framework one co…
... 990781"]Fortunately any starting BASIC text adventure writer won' ... really interesting book to read, if you're new ... For anyone new to BASIC its not a Spectrum ... substitute lines for Spectrum BASIC, however my friend was ... it might clear your data, one had to use ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... know how you managed to read the errors though :) - ...
; (non-sprite) data and non-time critical routines ... assembler is going to write data to
endoflvldata BLOCK ... beginning of buffer to cell data
MACRO ... reset to the Basic.How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... /> call sprite8x8
; Read these ports to scan keyboard ... FE)
; to do the read of the port
; ... ret
; DATA section
ALIGN 256
Press space to return to basic.
The sprite8x8 ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... fetchan
ret ; back to basic
; Print ... />
;common words/tokens to read instead off numbers
[code]sys_udg db [udg data] 144
db [another udg ... 's data] 145
db [and ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... fetchan
ret ; back to basic
; Print text ... />
;common words/tokens to read instead off numbers
data starting at label udg_A
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... (hl), a
; increment data pointer twice to double stride ... (hl), a
; increment data pointer twice to double stride ...
ret
; DATA section
ALIGN 256 ... performance over doing this in Basic though I think :)
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…
... /> Symbol shift + space: return to basic. Originally had this as caps ...
; work out address of data in font
ld h ... a, (hl) ; 8 pixels of data from font
inc l ... /> .nexthalfline
in a, (c) ; read keyboard half-line
cpl ...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…
...
SymShift+Space: Exit to basic
[code]
; Console ...
; work out address of data in font
ld h ... a, (hl) ; 8 pixels of data from font
inc l ... /> .nexthalfline
in a, (c) ; read keyboard half-line
cpl ...Interface for PC ZXSee last entry of former TOPIC. I'm working on the interface. Info about it on MISCELLANEOUS Author: Arjun (---.bng.vsnl.net.in) Date: 08-13-01 …
... already working on a parallel-data-system. The main problem right ... ever program was TI extended Basic on the TI99 4A...i ... that on pc,,,TI extended Basic language...any chance you could ...moneyWhen i was younger and writing speccy games in basic with the occasionaly machine code subroutine, i used to dream of writing a hit game and making a…
... and writing speccy games in basic with the occasionaly machine code ... best-selling game (I did read in a magazine that the ...
