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Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... zeroes
ld d,$ff ;print other zeroes
add a ... /> rst $10 ;A =????
inc bc ;count digits
Next1: ld ... ;if printed LH-digit, then print RH-digit
inc hl ... -
Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
...
; print digits
PRINT: ld a, e ;A ... $10 ;print left side digit
inc bc ;count digits ... rst $10 ;print right side digit
inc bc ;count digits ... -
Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... e
rst $10 ;print a single zero
... $10 ;A =????
inc bc ;count digits
BCD2ARH:ld ... 10 ;A =????
inc bc ;count digits
inc ... -
Problem with Pasmo Assembler/Speccy emulator?I'm at the start of trying to learn Z80 assembly for the ZX Spectrum. I'm using Speccy 1.7 as my emulator, Pasmo as my assembler, and am following t…
... my emulator, Pasmo as my assembler, and am following this tutorial ... , and after its loaded, type PRINT USR 24576 when you should ... that it mentioned, I type PRINT USR 24576 like the tutorial ... still think it involves the assembler.
Thank you for ... -
Z80AsmI've been using the Z80 PC Assembler 1.2 by Peter Hanratty and found that the RST 8 instruction assembles to 200. It should be 207. Ret Z is 200 wh…
Why not use the assembler that z88dk uses?
You can even print letters and numbers with its printf for debugging -
Z80AsmI've been using the Z80 PC Assembler 1.2 by Peter Hanratty and found that the RST 8 instruction assembles to 200. It should be 207. Ret Z is 200 wh…
... use the assembler that z88dk uses?
You can even print letters ... -
Code to test if a rectangle is in a rectangle[SIZE=3][FONT=Calibri]I am looking to write some code that will check if a rectangular shape is outside or overlapping a second rectangle. If the sma…
... /> call check1
ld bc,1
ret c ; ... /> 21 LET bc=USR 40008:
PRINT AT 0,0;" ... A is ";"not " AND NOT bc;"intersected ... 0:
PAUSE bc*10+NOT bc
22 OVER ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... as it is written in Assembler and so very fast. Boriels ... -256*PEEK 23607
110 PRINT a$;
120 LET p ... . With some modifications, one can print full screen composed of 24 ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... , I posted a simple print routine in assembler a little while ago ... 6912. The save needs an assembler routine, but the restore can ... to point to the other print routine. -
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…
... program structure, with no assembler lines, there's 24kb ... Oh, and another thing, the assembler is laboriously copied into the ... />
4990 Print "Initialising...."
5195 Print "Almost on it ... ..."
5315 Print "Ok getting down to work ... -
Clearing 22 lines of the screenHow do I go about clearing the top 22 lines of the screen and leave the bottom #0 area untouched? I have a routine to reset the attributes, but cant…
... a=2
LD BC,cleartextend-cleartext ; calculate number ... ; location of data to print
CALL 08252
POP BC
DJNZ cleartextloop
... -
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…
... side coding, ie. say how print works in basic/asm/C ... />
As regards BASIC and assembler, it's fairly easy to ... for anyone programming in Z80 assembler on the Spectrum. What I ... -
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…
... a C compiler environment. The assembler is an independent program. ... and then the ROM to print the result.
... /> // assemble the following with the assembler
// z80asm prog.asm -lz80 ... ,_format ; what I want to print
push hl
... -
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…
... C compiler environment. The assembler is an independent program. ... and then the ROM to print the result.
... // assemble the following with the assembler
// z80asm prog.asm - ...
[/QUOTE]
The assembler is not the C compiler ... -
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…
... needed)
ld bc,(23688) ;BC=(S_POSN)
ld ... ) ;A =character to print
;enter here to ... ld a,"?" ;don't print controls
PRINTA4:ld ... SetBLOCK
add hl,bc
ld (23680 ... -
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…
... to use the ROM's PRINT function, purists will pour scorn ... data string
ld bc,6 ;BC contains string length
call ... -
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…
... like here" and it would print it?
:-)[/QUOTE]
BC register with the appropriate length ... -
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…
... much text there is to print out and keep going until ... t figure out how to print text using that font.< ... of our font.
ld bc,728 ; 96 chars * 8 ... byte of new.
dec bc ; decrement counter.
ld ... jr nz,font1 ; repeat until bc=zero.
ld hl,60000 ... -
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…
... (19 on a 128K) and PRINT in 1 string.
ld bc,6 ;BC contains string length
call ... -
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…
You can just add extra AT (22) commands and co-ordinates to the existing string data and lengthen the BC register to the appropriate length when required to PRINT the extra stuff. -
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…
... data string
; ld bc,6 ;BC contains string length
loop ...
ld bc,eostr-dat ; length of string to print
call ... -
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…
...
ld bc,eostr-dat ; length of string to print
call ... -
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…
[QUOTE=daveysludge;751134]
[CODE] ld bc,6 ;BC contains string length
[/CODE][/QUOTE]
Hi, Could you explain why BC is set to 6 to print one character to the screen? -
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…
... you explain why BC is set to 6 to print one character ... /> 3 bytes for where to print it
[22 = AT, 1 ... = space]
So to print a 6 letter word instead ... this method, you'd LD BC with 11. -
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…
... /> 3 bytes for where to print it
[22 = AT, 1 ... = space]
So to print a 6 letter word instead ... this method, you'd LD BC with 11.[/QUOTE]
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…
... data string
; ld bc,6 ;BC contains string length
ld ...
ld bc,eostr-dat ; length of string to print
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…
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…
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…
... scale); these just won't print anything. If the characters come ... =CODE c$(a):
LET bc=ox=(oy=(sx=(sy=(ds ...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…
... large code repositories. Spin's assembler, pasmo, sjasm, etc ... ascii string
ld bc,10 ; base 10 conversion ...
LIB asm_utoa ; inform assembler to look for this function ... horizontal pixel coordinate
ld bc,-10 ; vertical pixel coordinate, ...
