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z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... had delay0 on top of delay. After reading replies and ... I now understand that delay 0 is the loop that ... the 10 defined by delay. This gives the screen ... br /> [/quote]
"delay" was just the entry point ... through a halt means a delay of 10/50s. That ... -
LgK image compressorOk people, i decided to make it proper thread since i've finally got something tested & useful for everyone. Here is my "chunky" ZX image compressor …
version 0.(0)19
Prevented small possibility ... -
Empire - port of trs80 basic programBack when I was a little kid, I had the opportunity to play around with a trs80 model 1 with level 2 basic. One of the games I often played was call…
... line 9 DIMs A(6,19) for 6 players, but whereas ... the second element it's 0-19. The manual doesn't help ... elements, which are indexed from 0 to I." Clearly if the ... range is "0 to I" there's not ... I+1 elements indexed from 0 to I, or just some ... -
How to stop a flickering character erasure?I'm trying to figure out how to build a moving sprite. Eventually it will be made up of several UDG's. However its early days yet so I'm experimentin…
... 98 SPRITE CLEAR : SPRITE PRINT 0
99 STOP
... br /> 1010 CLS : BORDER 0: SPRITE CLEAR : TILE DIM 18 ... br /> 1020 FOR i=0 TO 185: BANK 18 ... 11 AT 0,0 TO 0,1
1035 PRINT AT 0,0; PAPER ... LET fr=0: LET face=1: LET delay=0: LET power=0
... -
A table of AY frequenciesHi friends, Simple request I hope; does anyone have source for a table of note frequencies on the AY chip as used in the Spectrum 128? I had a loo…
... , Ideal=493.88 Hz, Error=+0.19%)
DEFW $ ... , Ideal=1975.52 Hz, Error=+0.19%)
DEFW $0035 ... , Ideal=3951.04 Hz, Error=+0.19%)
DEFW $ ... , Ideal=7902.08 Hz, Error=+0.19%)
DEFW $ ... -
Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…
... />
[code];
; Arbitrary delay routine by spke (31/10 ... /> ; with smaller minimum delay time and new macro-based ... discussion of other
; delay routines at http://worldofspectrum.org ... contains 23 minus the remaining delay (0..23), C is on ... -
Advantages of a ZX Spectrum compared to a PCI will get straight into it:- 1)The is no ongoing obsolescence or time zone to worry about :Therefore the ZX Spectrum is "retro Friendly" . But wi…
... , that’s a cost of £0.19 per hour.
A ZX ... ZX Spectrum+ I estimate at £0.03 per hour.
SCRplusAnn: SCRplus 0.19, with a user-friendly GUI (based on GTK+). Converts images to ZX Spectrum format. Supports ULA+ format, Timex 8x1 attributes, YUV…
Ann: SCRplus 0.19, with a user-friendly GUI ( ...Help needed...I am at my wits end with this pigs ear of a routine, can anyone simplify it and make it work as it should? Basically it should make the characters '…
...
dat1: defb 22,4,0,19,8,16,8,17,8 ... /> dat2: defb 22,4,2,19,8,16,8,17,8 ... /> dat4: defb 22,4,10,19,8,16,8,17,8 ... /> dat55: defb 22,4,14,19,8,16,8,17,8 ... /> dat6: defb 22,4,18,19,8,16,8,17,8 ... /> dat7: defb 22,4,22,19,8,16,8,17,8 ... /> dat8: defb 22,4,26,19,8,16,8,17,8 ...High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …
... (23693),A ; PAPER 0, INK 0, BRIGHT 1
... DJNZ CICLO_1 ; repeat until B = 0
; ---------- PRINT ... , 17, 0, 19, 1 ; INK 7, PAPER 0, BRIGHT 1 ... br />
DEFB 17, 0, 19, 1, 21, 1
... 16, 7, 17, 2, 19, 1
DEFB 22, ...b00mzi11a - where is he?I transferred money for the xbox to his account nearly 3 weeks ago, since then he's dropped off the 'net. I don't want to jump to assumptions as he'…
... one out of the 100(0?) unsuccessful ones.
I ... should be a 1 week delay before Bleugh receives his money ... would retransfer the money.
19.Email from Boomzilla stating that ...Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…
... /> [code]
; Z80 delay routine
; by JB, license ... /> ; enter : bc = T state delay (>=160)
; uses : ... bc, hl
.delay
.b0
... T
; bit0 reset : 19 T
.b1 ... have bits 4..0 of the delay parameter all ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... PrintInitMessage
CALL Delay
LD HL, ... )
LD HL,String7+19
CALL CreateHexString
CreateHexDigit
;Convert number 0-15 in A
;To ... MyStack
AlignmentByte
DB 0
ENDCODE
Analogue BeeperThere's been a discussion on foro.speccy.org about multichannel beeper stuff, and since I had the camera out and the scope set up, I set about demons…
... ld a, (hl) ; get delay value
and a ; ... br /> ld b, a ; delay count
xor a ; output ... delay1 djnz .delay1 ; zero level delay
inc hl
... .delay2 djnz .delay2 ; and delay
inc hl ; next ... 5,15,3,18,2,19,0
[/code]
FMV on +3eOK, so about 6 months ago i posted here that i got full motion video on +3e, with a bunch of scr files called passion. I added the glider rider music…
... /> [code]
8bit 4bit
0 0
1 1
2 ...
exx
ld a,delay
deloop:
dec a ... /> [code]
8bit 4bit
0 0
1 1
2 ... 7
18 7
19 7
20 7
Soccer StarsJust found this one, had for years and never realised it was MIA. I'll scan later along with all the rest I need to do.
... folder. Not sure what the delay was, but I just tested ... : -------------------- Length: 41420 Normal Speed ,Pause: 19.029s
8- BDF0: Program ... : s4806 Length: 19 Normal Speed ,Pause: 0.430s
9- BE08 ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... sprites
jr main
delay in a,(255)
cp ... +1),sp
ld hl,0 ;graphics
ld sp,scrntab ... loop
stk ld sp,0
ei
ret
ld e,(ix+0)
ld b,16
row19 defw 20576 ;row 19
defw 20832
defw ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... /> JP NZ,M3
;delay to reach the 1st line ... /> MV8 LD BC,18*256+19 ;BC
MV7 LD DE ... br />
LD A,36 ;delay
M6
DEC A ... />
StoreSP .WORD 0
.WORD 0
.WORD 0
StoreSP2 .WORD ...64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... /> OUT (254),A
;delay to reach the 1st line ... of next line
;delay
NOP
NOP
REPT 192
BYTE 13,19,44,103
ENDR
StoreSP .WORD 0
.WORD 0
StoreSP2 .WORD 0
...BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
... ()%161;
col[f] = rand()%19;
dlin[f] = (rand()%2 ... /> printAt(20, 1);
printf("Delay: %d frame(s)", frames);
}
}
// delay
for (f = 0; f < frames; ++f ...
