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Question about 2-channel beeper musicI confess I haven't tried all the available beeper utilities and software. I always found music software confusing and trackers are not for me. I kno…
... pure machine-code, multi-channel sound on the 48K ... a sample rate of 10.4kHz which worked pretty ... br /> For music, a 2-channel, interrupt-driven time-limited routine ... and being called every 1/25th of a second, ... br />
3-channel beeper music is also probably ... -
question re. STR$ bugCould someone point me to whereabouts in the ROM this goes wrong? [code]PRINT PAPER 5;1;STR$ 234[/code] (Only the "1" prints in cyan.) It's not the m…
... ;633114]READ_IN opens the specified channel ("K" in the case of ... the JGHROM
10 PRINT INKEY$#0;:GOTO 10
Relevant ... OPT FNorg(&1638) ; Open channel 'K'
1638 FD CB ... 01 DE SET 3,(IY+1) ; Set 'L' mode, also fixes ... -
Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…
... RET (+2A/+3/+3e ROM.1)
push hl
ld a,1 ;statement number
ld ... "P"
ldir ;replace channel info "P" with "S"< ... br /> TO_ALL: xor $10
ld (iy+$01),a ... -
Play command on divideHi, i thought I'd have a quick go on divide seeing as i had an afternoon spare.However,i can't seem to get the 'play' command on the screen?. It see…
... /> rst 0[/code]
or in BASIC
[code]10 DATA 243, 1 ...
20 RESTORE: FOR x=1 TO 8
30 READ ... -
Printing a ListingHello my fellow WoS'ers Todays trouble starts with the need to print-out a listing - personally I would prefer a text file, but beggars cannot be c…
... 1
10 REM ZX Spectrum +3e
20 REM Window Channel ... $ 14;CHR$ 1;CHR$ 30;CHR$ 1;"+3e Windows"'"==========="
1.10 of the ZX Spectrum ... ;CHR$ 2;CHR$ 1;"Reduced height is also ... $ 1;CHR$ 19;CHR$ 1;CHR$ 30;CHR$ 1;CHR$ 1;CHR ... -
40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... ld hl, (prog) ; a channel must be created below basic ... br /> ld (hl), 'S' ; channel type; 'K', 'S', 'R' ... account of streams -3 to -1
add a, a ... ;
bit 3, (iy + 1) ; see if 8-bit mode ... ;
err5:
rst 8 ;
defb 4 ;
AY-3-8912 emulationI am trying to improve the emulation of the AY-3-8912 in FBZX wii. I studied the code of some emulators and read some documents. I would like to be…
... (point 9 and 10)
1) The frequency of ... . The formula to mix each channel is: (ToneOn | ToneDisable) & ... counter reaches 0
10) There are several noise generators ... ! NoiseOn;
if( noise & 1 ) noise ^= 0x24000 ;
...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... go, prints a number at 1,1 and multiply by 100. 6683 ... ;prints contents of (score) at 1,1 using ROM, rem max possible ... ;open channel
;
ld a,22 ;ROM 'at'
rst 16 ... /> ld a,1 ;...after row is column
rst 16 ;rom routine ...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... lines channel
call 5633
ld a,22
rst 16 ...
ld a,1
rst 16
ld ... a,7
rst 16
Machine code loopsThis might sound a bit daft, but I,ve forgotten how to do loops using th 'b' register... I want to loop this x mount of times: [CODE]ld a,r and 6 i…
@ rst... Yeah tried that, but it just ends up in an endless loop!
[CODE]ld b,10
st: ld a,r
and 6
inc a
ld (aa+1),a
call 43100
call 45000
djnz st
ret[/CODE]Frequency in KHz of the TV outputI recently acquired a very cheap USB analog TV tuner. When I connect it to the cable TV, it only finds two channels. But when I change the frequency …
... MHz precise or 1 MHz of 10 MHz? As a channel has a ...Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…
... rather awkward.
[code]
10 FOR x=-100 TO 100 ...Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…
... are skipped.
[code]
10 FOR x=-100 TO 100 ...Youtube DumpI think there was a thread containing only Youtube vids before but I can't find it so here's a new one. To start, here's my current favourite Mighty …
... interwebs but Glen Becks web channel :p[/QUOTE]
I ... % movies 10% older TV shows off thebox...9% documentary/history channel stuff...1 ...Youtube DumpI think there was a thread containing only Youtube vids before but I can't find it so here's a new one. To start, here's my current favourite Mighty …
... % movies 10% older TV shows off thebox...9% documentary/history channel stuff...1 ...calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …
... numbers, numerically less than 1, and large numbers, numerically ... The former are multiplied by 10 ^ n, where n is ... the latter are divided by 10 ^ (n-7), where ... print formats:
10 FOR a=-11 TO ...
2DE3 PRINT-FP RST 0028,FP-CALC Use the ...ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... 1 | 1- | 01 | 1- 0
1 001 | 01- 0 | 11 | 1- 1 ... | 01- 10
5 01001 | 001- 10 | 1011 | ... call dzx7
rst 0
include ...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…
... /> call 5633 ;open print channel
ld bc,9
print_char:
rst 16
next_char:
inc ... 22,1,20,16,1,17,7,19,1 ; AT 1,20; INK 1; ... PAPER 7; BRIGHT 1
...BIN2BAS (load BASIC text into emulator) utilityI've nearly finished testing this. It allows a BASIC program to be loaded from a text file in any emulator which has a "load binary" option. I was wo…
... system variables and add extra channel info (which I knew about ... CAT 1: LOAD *"m";1;"name": SAVE *"m";1;"Squares": VERIFY *"m";1;" ... Squares": MERGE *"m";1;"Squares"
1010 STOP
10 Test all +3 commands
Kung Fu MasterAnyone else feel we was shafted with this arcade port ? Even the speed of the game is highly annoying and i wish there was some kind of hack to kill…
... it's pretty simple, only 1 channel for the tune and another ... 0,0,0,0,1,1,0,0,2,1 and then loops ... back to the start, so it's 10 ...Kung Fu MasterAnyone else feel we was shafted with this arcade port ? Even the speed of the game is highly annoying and i wish there was some kind of hack to kill…
... it's pretty simple, only 1 channel for the tune and another ... 0,0,0,0,1,1,0,0,2,1 and then loops ... back to the start, so it's 10 ...Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
... alice PAL20L8
A14=1 A15=2 A13=3 MREQ ... A6=8 A5=9 A4=10 A3=11 GND =12
RST 8)
; or 00000000 00111010 ...SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... /> [*]80 column text: MODE 1.
[*]Abbreviated command entry: ... [*]Fast reset.
[*]Four channel sound possible by combining BEEP ... register available in interrupt mode 1
[*]Key click ... [*]Remove multiple lines: DELETE 10,100.
[*]Renumber with ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... org 0x0374
sound_4:
rst next_char ; advance pointer
... points
defs 1, 255 ; unused location
... /> jp nz, be_h_and_l_lp ; 10 t-state jump
... ; d, pk, 1
fadd ; d, pk + 1
fce ; ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... timing constant
ld a, 10 ; MIC off and RED border ... jump if no break
rst error ; else
defb ... /> ld hl, 0x0115 ; approx 1/4 second pause
cp 1 ; set carry flag on zero ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... /> fmul ; x'', 10^(2^(n + 1))
fce ; exit ... a, '-' ; minus
rst print_a ; print it
... 0x2f64
pf_dec_0s:
rst print_a ; print decimal
... 0x2f85
pf_e_sign:
rst print_a ; print sign
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... /> org 0x326c
defs 1, 255 ; unused locations (common ...
oct_to_dec_1:
rst next_char ; get next character< ...
hex_to_dec_1:
rst next_char ; get next character ... cp 'A' ; less than 10?
jp c, hex_to_dec_2 ; ...
