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Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... a,(23560)
cp ' '
jr nz, demo
jp 65012 ; DEACTIVATE ... /> According to the documentation, Rotatrix timing can be configured using POKE ... 64868,0 for "early timing" or POKE 64868,87 for ... -
Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…
... to keep the timing stable, so ... dec d
jr nz,skip1
ex ... /> dec e
jr nz,skip2
ex af ... jr skip2a
skip2 ... ;do another timing ... -
Buzzer sounds tips'n'tricksSo I have an ARM Cortex M3 with a buzzer connected to its GPIO pin. And because I read this forum I know that there is no need to add a separate buzz…
... , to make up for the timing difference. If you have a ... /> kick: ld de,$0809 ;if timing is off, adjust this value ...
dlp4: dec d
jr nz,dlp4
ld d ... /> snare: ld bc,$03fd ;if timing is off, adjust this value ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... . I'm guessing that the timing constants are proportionally different to ... (LD H,0) to 860F (JR NZ,8602) detects the pilot tone ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... store timing
inc ix ; advance pointer
jr . ... at BREAK/SPACE
jr nz,.test_ear_port ; if not pressed, ... ; increment counter
jr z,.exit_edge_loop ; give up ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... holds one of the timing constants.
;; ... .zero_pulse_min+.edge_loop_start_pilot
jr c,.detect_pilot_tone ; too ... zero
jr nz,.load_error ;abort if ... BREAK/SPACE
jr nz,.test_ear_port ; if not ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... colour number
jr c,.high_edge ; jump ... colour to use
jr nz,.red_or_blue ; jump forward ... /> macro border
jr c,.high_edge ; leave all unset ... enough tolerance in the timing constants that it ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... sync, the address of the timing
;; constant used ... cp .zero_pulse_max+.edge_loop_start_pilot
jr nc,.detect_pilot_pulse_cp ;too many, perhaps ... colour to use
jr nz,.red_or_blue ; jump forward if ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... /sync, the address of the timing
;; constant used to ... adjust .read_edge's loop counter/timing constant
;; to enforce ... br /> dec a ; (4T)
jr nz,$-1 ; (12T when taken, 7T ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... a ; (4T)
jr nz,$-1 ; (12T when taken, ... a ; (4T)
jr nz,$-1 ; (12T when taken, ... loop, my empirical timing tests gave average results ... to alter the timing constant for the ... -
Bug in Super Wonder Boy in Monsterland?Hello!:smile: This game seems to have a bug that prevents finalize. The dragon that is in the last level, it is impossible to kill.Remains static.No…
... jr nz,bbb ... jr ccc
;=============================================================================
;=============================================================================
; pause 48k timing ... -
What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... /> LD B,+B0 Set the timing constant for the
flag ... entering the sampling loop.
JR NZ,05E9,LD-DELAY
AND ... -
What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
...
or h ;
jr nz, ld_wait ;
call ld_edge_2 ; continue ... br /> ld b, 156 ; timing constant
call ld_edge_2 ; ... br /> ld b, 201 ; timing constant
call ld_edge_1 ; ... br /> ld b, 178 ; timing constant
... -
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…
... /> be_h_and_l_lp:
dec c ; timing loop
jr nz, be_h_and_l_lp ; 12 or 7 ... , a ; half-cycle point?
jr nz, be_again ; jump if so
jr nz, report_b ; short form
inc ... -
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…
... l ; reduce low counter
jr nz, sa_leader ; jump back for another ...
ld b, 62 ; timing constant
jr nz, sa_bit_2 ; jump back after ... l ;
or h ;
jr nz, ld_wait ;
call ld_edge_2 ; continue ... -
Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... difference to the FRAMES timing, which still comes out ... /> and (hl)
jr nz,BCD2A30 ;if RH digit non ... bit 7,h
jr nz,BCD2ASC ;if both digits zero ... a single zero
jr EndProg ;finished when HL ... -
New bicolour game coming very soon.And they say budget software houses can't afford to advertise :-D [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/elstompo_advertsmall_…
... , because lack of contention affects timing (it runs faster during screen ... /> DELAY:
DEC C
JR NZ,DELAY[/CODE]
The ... -
Sorting BusinessThis is a little bit different from the usual game-related fare but I know there are a few people here who like this sort of thing. This is about so…
... posted; I'll try timing again your version versus ... l
cp e
jr nz, begin_loop ; if i != array_hi ... hl,de
jr nz, insert_loop ; if more elements in ... /> Anyway, here are some timing results when using the simple ...
