-
Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…
... step over +VAL"
rst $20
rst $20
ld bc ... bc
push af
rst $20 ;step over ,
... here
call STAKA
rst $20 ;step over "
...probably a stupid question about RST16I'm using the 'hello world' code borrowed from [url=http://equant-retrochallenge.blogspot.com/2008/07/zx-spectrum-assembly-programming-under.html]her…
... done if it is
rst 16 ; Spectrum: Print the character ...Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... move round the screen using Rst 16, but I feel i ...Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... undo USR
GETARG: rst $20
call SCANNG< ... print controls
PRCHAR: rst $10 ;print a character ... ;reset bit 7
rst $10 ;print a character
rst $10
dec b ...Indirect Variable AssignmentHere's another wacky routine. This allows assignment of values to variables where the source & destination variables can themselves be defined in var…
Here's another wacky routine. This allows assignment of values to variables where the source & destination variables can themselves be defined in variables (or expressions which evaluate to variables). Some of this can already be done with VAL or VAL$, ...Amazonia (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027280"]Amazonia[/URL], please add the following "known errors" des…
... another key
a4bc c7 rst 00h ; reset computer[/CODE]
a4bc c7 rst 00h ; reset computer[/CODE]
Undefine functionHere's a routine to selectively remove variables from the VARS area and reclaim the space. This can be done partially from BASIC already by assigning…
... /> ld ix,0
GETARG: rst $20
call SCANNING
inc ix
rst $18
cp ","
jr ...
ld (CH_ADD),ix
rst $18
ret
[/code ...joining lines of BASICDue to overwhelming demand - well, one demand - well, more of a suggestion, really - here's a routine to join together lines of BASIC. The vertical c…
using the ROM's FP calculatorIs it possible to use the ROM's FP calculator to evaluate any FP expression in a single sequence of commands without breaking out to stack some other…
... />
stack A : stack B : rst $28 : divide : end_calc
stack ... C : stack D : rst $28 : divide : add : end_calc
rst $28 ... end_calc" sequence?ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... NMI.SYS. Functions available on rst $08:
open, read, write ...What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
... player vertical coord.
rst 16 ; set vertical position of ... 's horizontal position.
rst 16 ; set the horizontal coord ... ,32 ; SPACE character.
rst 16 ; display space.
...Developing apps for ZX Spectrum with SDCCDue to troubles with makebin utility which always starts coversion at memory address 0x0000 and can only produce binaries < 32KB, it can't be used to…
... *.lst *.asm *.map *.o \
*.rst *.sym *.lib *.bin *.mem *.lib ...multi-scroll m/c subroutine for BASICArising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. whe…
Arising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. where width issyntax checking helpcan anyone help with syntax checking, its been a while since I did any basic extension coding this routine always gives :C nonsense in basic error …
... $0D
[CODE] RST CALBAS
DEFW EXPT_EXP
RST CALBAS
DEFW NEXT_2NUM ;EVAL ... START,LENGTH
RST CALBAS
DEFW FIND_INT2
RST CALBAS
DEFW FIND_INT2
calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …
... #2d28;
12 800c ef rst #28 Vypocet 127.5*(1 ...Elliptical ChallengeSubsequent to the recent "Graph Plot" thread, I wrote this general purpose ellipse drawing routine which will plot (although it doesn't actually use …
... gt; 0
rst $28
defb $A2 ; ... /> call $2d28 ;STACK_A
rst $28 ; : 0.5,b, ... $2d28 ;STACK_A = xh
rst $28 ; : 0.5,b,1 ...Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... , end of control codes
rst $10 ; print it
inc ... ) ; load character into A
rst $10 ; print it
inc ... it loading characters, and calling RST 10, but nothing appears on ...DIVIDE versus ZX128 ROMDivide interface use hardware mapping of extra memory on this fixed points in 48rom: #0000 - power-on/reset/rst0/software restart #0008 - syntax erro…
... error
#0038 - im1 interrupt/rst #38
#0066 - nmi routine ...Printing textThis is probably quite a basic question, or there might be something obvious I'm missing. I'm looking for an economical way of printing formatted te…
16k programmingHi all, If I want to code something for a 16k (or any spectrum) my understanding was that if I CLEAR below 24064 and put all the code above it up to…
... be ok. My demo used RST 16 but no other ROM ...Works in Fuse & SpecEmu, not ZXSpinI decided that I wanted to change the scroll routine which I was using for compiling the Trailblazer maps, as I'd just copied it out of Andrew Hewson…
...
ld a,$16
rst $10
xor a
xor a
rst $10
ld bc,10< ...Rotronics Wafadrive v.1.80 ROM - Corrupt or purposely broken?I've been digging around the Wafadrive v1.80 ROM (from [URL="http://zxspectrum.it.omegahg.com/_RO.htm"]here[/URL]) and can't decide if the ROM is cor…
trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…
... control code for AT.
rst #16 ; print it.
ld ... a,#10 ; vertical position.
rst #16 ; print it.
ld ... a,#10 ; y coordinate.
rst #16
LD A ...Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…
... ]#0[/B] (power-on/reset/rst 0)
[B]#8[/B ... ] (rst 8 / errors)
[B]#38[/ ...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…
... I put
#asm
rst 56
#endasm
push ix
rst 56
LD BC ...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…
I'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 which assembles correctly to 200.
Are there any patches or working versions?
