-
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... and caps+break is ctrl+c and caps+symbol is ... downed" keys
scanline: in a,(c) ; read kbd
or ... a,e
cp 0
jr nz,ghosting
ld e,l ... 0x01,'z','x','c','v'
.byte 'a','s','d',' ... 0xff,'Z','X','C','V'
.byte 'A','S','D',' ... -
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…
... HL in DE
ld e, l ; without using the stack
rlca ; left
ld e, a ; store low byte of offset ... , 0x40 ; base location
ld l, a ; plus column offset
add ... character
ld c, a ; store in c
ld a, (de) ; read ... -
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…
... a, l
add a, 32
ld l, a
ccf
sbc a, a
jr c, copy_l_2
ld a, 4
out (0xfb ...
ld c, 32
copy_l_3:
ld e, (hl)
rl d
rl e
rr d
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…
... commands, you can change colours (e.g. PEN 2: PRINT # ... /> ; offset
ld (hl), e ; the low byte of the ... a, l ;
sub 32 ;
ld l, a ;
jr c, _end ;
ld a ... h, a ;
ld l, e ;
ld a, (attr_p) ;
ld (hl), a ;< ...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…
... /> ld c,a
add hl,bc
ld (hl),e
inc ... /> ld b,h
ld c,l
ex de,hl
ld h,$00
ld l,a
add hl,hl
ld b,h
ld c,l
pop hl
push ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... /> DEF FN d(a)=a-(64 AND a>127)
... a$,a,b$,b,l)
=FN d$(a$,a,INT(a/256),l,INT(l ... l,INT(l/256),1)+")":
DEF FN d$(a$,a,b,l ... GO SUB 29: LET a$=c$:
REM This line ... 19.
The LET a$=c$ restores the plain comman…50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... z,loc_A1F1
ld l,a
ld h,8Dh ... :
ld a,(byte_88FC)
ld e,a
cp ... 4
ld a,0 ; NOP
jr c ... ,loc_A162
ld a,2Ch ; INC L
loc_A162:
ld (byte_A1D8),a ...Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... previous plot byte
ld e,a ; 4t - store plot ... previous plot byte
ld e,a ; 4t - store plot ... previous plot byte
ld e,a ; 4t - store plot ... plot byte
ld e,a ; 4t - store plot ... br /> ld l,a ; 4t - back into l
jr c,_PLOT2CHR_S1 ; ...Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... ,c=$FE
_REDEF_L2:
in a,(c) ; 12t - b=$7F,c ... 00010111 becomes 00001000
ld l,a ; 7t - store the mask ... key
_REDEF_S2:
inc e ; 4t - next mem
ld e,(hl) ; 7t - read ... cpl ; 4t - invert a
and e ; 4t - apply the ...Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…
... .. 16x
ld l, a
ld h, 0
ld e, (hl)
inc hl
unpack_room2
ld a, (de)
inc de
a
inc hl
ld c, a
jr ... sub $EF
ld b, a
unpack_room3
ld (hl ...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…
... /> LD L,A
ld d,h ; save value
ld e,l ;
A,L
SUB 32
LD L,A
JR C,ENDIT
LD A ... br /> LD H,A
LD L,E
LD A,(ATTRP)
LD ...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…
...
ld l, a
ld d, h
ld e, l
add ... a, l
sub 32
ld l, a
jr c, endit
ld a ...
ld h, a
ld l, e
ld a, (attr_p)
ld ... (hl), a
pop af ...AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…
... c, pd_nois
add a, e
jr c, pd_esam
add a, a
ld e, a ... ld (ix + 7), a
add a, a
ld l, a
ld h ... (ix + 6), a
add a, a
ld l, a
ld h ... ld b, a
add a, a
ad…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…
... ; offset
ld (hl), e ; the low byte of the ... 's attribute patch
ld a, e ;
and 31 ;
a, l ;
sub 32 ;
ld l, a ;
jr c, _end ;
ld a ... , a ;
ld l, e ;
ld a, (attr_p) ;
ld (hl), a ;< ...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…
...
ld l, a
ld d, h
ld e, l
add ... z, pst
inc e
ld a, e
and 31
a, l
sub 32
ld l, a
jr c, endit
ld a ...
ld h, a
ld l, e
ld a, (attr_p)
ld ...fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... /> cp a,32
jp c,.printQuit
ld e,a
... br /> .mulloop:
rl e
rl d
... a,#E0
ld l,a
ld a,c
and a,#18
or a ... br /> and a,#1F
add a,l
ld l,a
;
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…
... HL in DE
ld e, l ; without using the stack
rlca ; left
ld e, a ; store low byte of offset ... , 0x40 ; base location
ld l, a ; plus column offset
add ... character
ld c, a ; store in c
ld a, (de) ; read ...OOOOOH censorshipEr no I guess it has some loopholes :lol: That's 2 posts that have backfired on me in the last half hour :D But anyway I noticed you can't submit …
S w e a r i n g ? ? A s O b a m a w ... o uld s a y ' Y e s W e C a ... n '
[COLOR="#f4f4ff"]F u c k ... n t b o l l o c k s[/COLOR]
[spoiler ... i t c u n t b o l l o c k s ...OOOOOH censorshipEr no I guess it has some loopholes :lol: That's 2 posts that have backfired on me in the last half hour :D But anyway I noticed you can't submit …
... w e a r i n g ? ? A s O b a m a w ... o uld s a y ' Y e ... s W e C a ... n '
[spoiler]F u c ... n t b o l l o c k s[/spoiler][/QUOTE]
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…
... for later
ld c, a ; store character value ... now A = %rrr00000
or e ; now A = %rrrCCCCC
ld e, a ; ... ld h, b
ld l, c ; now HL = INT ( ...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…
... make
L0EA4: LD L,A ; L a multiple of 32.
L0EA5 ...
ld e, a ; store character value in E
ld c, (hl) ; ... INT (char/2)
ld c, l ; now BC = INT (char/ ...New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... same check is OR A [-1B, -3T]
C) in routines level1 ... , level2. etc you sometime use LD L, ... corectly - point for you
E) all that setting for particular ... ]
ld a, level
add a, a
ld l, a
ld ...New game: WUNDERCHAR$Hi All, Finally finished my latest game: Wunderchar$. [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loadingscr.gif[/IMG][IMG]http://…
... same check is OR A [-1B, -3T]
C) in routines level1 ... , level2. etc you sometime use LD L, ... corectly - point for you
E) all that setting for particular ... :
ld a, level
add a, a
ld l, a
ld ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
...
[code]
colchk ld a,e ; take vertical position of first ... br /> ld c,a ; store vertical distance in c.
ld l,14 ; ... corners.
add a,c ; add vertical distance.
cp ...line, plot and circle in whole 256x192 displayhi! are there some way to draw lines, or whatever, in the whole 256x192 display, than just the above 256x176 part? (this is the msx1 version i made o…
... directions
LD L,E ; to HL
LD A,C ;compare distance Y ... L to E
LD C,B ;swap both 'distances'
LD B,A ;A ...MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…
... [*]Swapping the B and C usage means the loop counter ... DE to use just E, saving a register, and simplifying the ... byte of the address (L) with the loop counter ... L, but that means a separate H increment each time L ... so it isn't completely a second step. Just keep ...MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…
... (HL),r ; INC L ; JR NZ,e (or the same 21T ... it'll probably work out a touch slower overall. Not ... br />
Here's a stack approach to add to ...
ld c,&18
ld a,&10
dec c
jr nz,loop1
Need help with tzxingI recently got a copy of this Polish text game: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006622[/url] I can't make a tzx of it howeve…
... br /> LD C,E
EXX
XOR A
LD E,A
... A,A
NEG
ADD A,L
NOP
LD L,A
ADC A ... ,H
SUB L ...
LD H,A
