-
z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …
... is that your C program is not a C program at runtime ... />
[code]
SCF
XOR A
LD IX,screenfile ... -
are there any machine code to basic converters?i know it sounds stupid but for amature programmers like me it would be great. i could speed up the basic on an emulator and it would give me more of…
... which does OR, AND, XOR when c=0,1,2:
[code ... DEF FN b(a,b,c,d,g,v)=g:
c takes 7 Ts (=0.000002 ... -
Flood Fill IssueHi Folks, Came across the following Flood Fill routine by John Metcalf: [code]; scanline fill by John Metcalf ; call with d=x-coord, e=y-coo…
... ;60067 6F
EAA4: AB xor e ;60068 AB
EAA5 ... checkadj:
EAB6: CB21 sla c ;60086 CB 21
EAB8 ... C8
EAC0: 0C inc c ;60096 0C
EAC1: ... CB51 bit 2,c ;60097 CB 51
... -
ZX Spectrum Z80 Development Environment on WindowsHi Folks, Just wondering what the recommendation is for a ZX Spectrum Z80 Development environment on Windows? Getting fed up with hand coding Z80…
... ,8 ; number of bytes
xor a ; clear carry
loop ... offset calc anymore for your c compatible code. -
Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
...
ld c,l
ld b,l
xor a
.scan
xor a
ld h,a ...
.scan_lp
in l,(c)
ret p
dec ... -
Chibi Akumas - Spectrum Port Planned!I'm planning to port my CPC game, Chibi Akumas to the ZX Spectrum! I will be targeting the 128k disk based systems - as this will be the best (and mo…
... ,FileDescriptor
ld c,#13 ;#3D13 C=#13: copy the file ... sysvars
call #3D13
xor a
ld (#5CF9),a ... ;ld hl,MyAddress
ld c,#0E
jp #3D13 ;#3D13 ... FILENAME" ;8 characters
DEFB "C" ;file type: code
[/code ... -
Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... /> ; ***************************************
drawText
xor a ;open channel "S"
; b x coordinate
; c y coordinate
; ***************************************
setXY ... -
Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... /> ; ***************************************
drawText
xor a ;open channel "S"
; b x coordinate
; c y coordinate
; ***************************************
setXY ... -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... ;By Ast A. Moore
;(c) 2017
;————————PREPARE ... 23693),a ;set ATTR_P
xor a ;BORDER = 0
... />
inject_controls
ld c,6 ;six keycodes to go ... S.SHIFT"
c_shf defm "C.SHIFT"
dummy_key ... -
1k Chess (was the 924 bytes thing!)Hi, I've decided to do a major rewrite of large parts of the code for the isometric Chess thing that I've been messing with. It got to the point, …
... new_calc_line:
ld a,c ;C=current line
sub ... /> put_bit:
xor (hl) ;
and e ... -
1k Chess (was the 924 bytes thing!)Hi, I've decided to do a major rewrite of large parts of the code for the isometric Chess thing that I've been messing with. It got to the point, …
... current_square:
ld a,c ;c=curent square
and ... ;backup screen address
xor (hl) ;
and ... -
ive found an attr scrolling routine but i want to remove the smaller scroller within it, etc.https://pastebin.com/K4nG3xbX also i would like to be able to change the colours and not have a shadow. http://www.worldofspectrum.org/pub/sin…
... ; attribute message scroll
XOR A ; FA1D AF
... FA4A CB 12
DEC C ; FA4C 0D
JP ... FAFE CB 12
DEC C ; FB00 0D
JP ... -
ive found an attr scrolling routine but i want to remove the smaller scroller within it, etc.https://pastebin.com/K4nG3xbX also i would like to be able to change the colours and not have a shadow. http://www.worldofspectrum.org/pub/sin…
... ; CHR$ pixel column
LD C, A ; FAF2 4F
LD ... D =charbyte
LD A, C ; CHR$ pixel column
... FAFE CB 12
DEC C ; FB00 0D
JP NZ ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... table position
xor (hl) ;retain just bits 0 ... inc l ;
ld c,(hl) ;C=right mask
ld h ... ;get byte
and c ;mask RHS
res 7 ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... ;ATTRs end
xor a ;Black PAPER, Black ... position
xor (hl) ;retain just bits ... ld b,h
ld c,l
... get byte
and c ;mask RHS
res ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... plasma table position
xor (hl) ;retain just bits 0 ... /> ld b,h
ld c,l
a2s_addr:
and c ;mask RHS
res 7 ... -
How can I make a UDG rotate?I designed a set of UDG's that can be used for making shapes or letters. Trouble is that my circle - for example - consists of 4 pieces and it would…
...
LD A,C
XOR %00000111 ; XOR offset to get left ... JR mouse_btn
set_top_edge:
XOR A
LD (PointerXY+1 ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... hand mask
ld c,l ;C=right hand mask
< ...
ld a,e ;
xor 20h ;toggle bit 5
and c ;mask RHS
... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... hand mask
ld c,l ;C=right hand mask
jr c,a2s_l ;
mlp1:
xor 20h ;toggle bit 5
jr c,a2s_addr ;if upper line ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... hand mask
ld c,a ;C=right hand mask
... ld h,c
ld a,e ;
xor 20h ;toggle ... ld e,a ;
jr c,a2s_addr ;if upper line then ... -
Cubic RevealI just though I'd develop this a little further. Written a while ago on a whim! [img]https://dl.dropbox.com/s/p44y5dda49ucmop/square_reveal_1_1.gi…
... hand mask
ld c,a ;C=right hand mask
... /> ld h,c
ld a,e ;
xor 20h ;toggle ... repeat
next_l:
xor 01h
cp e
multiface basic loaderdoes anyone know how I can see whats in the basic loader of the multiface 1 and 128 basic loaders and how I could convert a tape save from the 1 and…
...
ld de,length
xor a ;A=0 for header ...
scf ;C=1 for load, C=0 for verify
scf ;C=1 for load, C=0 for verify
Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... br /> ld l,c
push de
xor a
... jr DLlarge
DLxGEy: or c
ret z ;do nothing ... /> exx
ld a,c
djnz DLloop
...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... /> di
call bank
xor a
ld (sw+1 ... /> ld ($5b5c),a
out (c),a
ld hl ...Gandalf [z88dk][Nirvana Plus][128Kb]Gandalf 1.00 [url="https://drive.google.com/open?id=1T9HK0_isoMrfogSIJVhPGehjVIdFus4c"]Download Ver 1.00[/url] Long after the destruction of t…
... shows:
[code]
xor a
ld (0x5f73),a ... /> ld bc,0x7ffd
out (c),a
ret
[/code ... is:
[code]
xor a
ld (0x5f73),a ... /> ld bc,0x7ffd
out (c),a
ret
[/code ...Proportional-width fontsFor reasons that are still not quite clear to me (because I’ve always loved typography and design,) I never bothered to write a proportional-font rou…
... cell)?
jr c,no_split2 ;no? As ... br /> inc de
xor a ;zeroize A (number of ... char_pr ld c,(hl) ;bitmap byte into C
xor a ; ... /> char_shift
rr c ;shift through Carry
... A
or c ;merge with C
ld ( ...Making sound using the BEEPER in AssemblyI had a look at the the documentation but it doesn't make sense to me. To make music just the beeper all I have to do is send ones and zeros to one o…
... /> ld de,#100
ld c,0 ; 2nd fdiv offset
add a,c ; offset = offset - 1
ld ... c,a
add a,h ; ... a,a
xor b ; output = osc1 XOR osc2
out (#fe ...
