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FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... it seems you won't be using an IF1 ... 's serial emulation isn't strictly dependent on the ... line a fixed number of t-states after the start bit, ... there are cca. 29.36 t-states per bit which is sufficient ... bauds requires almost no wait states - perhaps two nop ... -
Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
I don't know the answer you want, ... [/FONT] [FONT=sans-serif]four T states. The CPU will sample the ... -
LDI questionWhen using LDI (or LDD) is it possible to access the value that is transfered from (HL) to (DE), or does the Z80 use an internal data cache to store …
... and CPI both take 16 T-states as the CPI instruction isn ... 't having to perform a write ... -
LDI questionWhen using LDI (or LDD) is it possible to access the value that is transfered from (HL) to (DE), or does the Z80 use an internal data cache to store …
... and CPI both take 16 T-states as the CPI instruction isn ... 't having to perform a write ... M cycles if they don't repeat, so the fifth M ... -
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_…
... 448 T-states. Also it has a "tolerance" of about 35 T-states ... executing a NOP instruction (4 T-states) for instance, you will ... a maximum delay of 3 T-states (if the computer has ... instructions take more than 20 T-states, thus causing longer interrupt delays ... -
New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... />
Actually no, there isn't.
[QUOTE=R-Tape ... , in order to save enough T-states per row for sound. -
New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... the right number of T-states on both platforms! On ... , and use the extra T-states to do something interesting! ... /> Of course, this doesn't really do justice to the ... are, partly 'cos I can't draw! :-)
... as this thread isn't really about the engine... ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... the right number of T-states on both platforms! On ... and use the extra T-states to do something interesting! ... /> Of course, this doesn't really do justice to the ... are, partly 'cos I can't draw! :-)[/QUOTE]
T-states anyway. I expect the ... -
5C series NTSC ULA 5C114E 8248Not sure if this has been mentioned before; I haven't seen anything about it online. Chris Smith's book discusses 6C011E as the NTSC ULA sold in Spec…
... ). Assuming this ULA uses 224 t-states per line and 264 lines ... -
SBC IX,DE/BCAlways wondered why there wasn't a SBC IX, DE/BC command.... so have to use PUSH HL ; save original HL PUSH IX ; IX on stack POP HL ; IX …
Though if you don't care about the contents of HL initially, then use POP HL/PUSH HL instead of the EX (SP), HL as it saves 17 t-states! -
what games have the best in game music?Just strikes me that many games I love don't have in game music, r type and chase HQ both have effective sound effects but no tunes. On the other ha…
can't compare AY and beeper, I mean programming wise to include it into a game timing wise is far trickier with a beeper.. sure there are examples of it , but decent things take up to much raster time.. err t-states ?!?! -
Space Harrier new loading screenHi, The original screen: [IMG]https://dl.dropboxusercontent.com/u/2616449/spectrum/SpaceHarrier.png[/IMG] and my new version: [IMG]https://dl.dro…
[QUOTE=zub;763634]Wow, hadn't realised this — it seems Elite ... started selling it in the States! :o
Even the ... the expense of raster time (t-states?) so you have that trade ... -
Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…
... : That adjustment saved me 9984 t-states approx, :D -
30-column 8x2 multicolor (even in 48K)I don't recall any 8x2 multicolor routine for 30 columns that would work on all Spectrum models (including the Spectrum 48K), so I decided to write i…
... line.
Numbers are T-states starting from +0 (the last ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... you saying there were less T-States (and was surprised) and was ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... Majikazo), and under around 5000 t-states.[/QUOTE]
You're ... -
Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?
... , it means counting bytes and T-states. But in very large corporate ... -
ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... time.
I also don't like annoying dialogs... :-) I ... B or so have 4 T-States, while LD B,(HL) ... ability to list the T-States of each line in ... and graphics drivers :-) the T-State calculation will be important ... to put in all those t-states, but this has to be ... -
ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... understand you right about the T-State calculation...
< ... the total amount of T-States while running the machine ... . My now implemented T-State display may be ... impossible to calculate the T-States of a code ... DIS has two different T-States depending on the ... -
ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... taken?[/b] and adjust the t-state total accordingly.[/QUOTE]
T-State counting in loops).
Now, opcodes with different T-States are shown as e.g ... -
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
Provided the Pixel Address Table is aligned to an even byte ($00, $02 etc) then 2 t-states can be saved thus, correct?
[CODE]LD E,(HL)
INC HL change to INC L
LD D,(HL)[/CODE] -
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
Provided the Pixel Address Table is aligned to an even byte ($00, $02 etc) then 2 t-states can be saved thus, correct?
[CODE]
LD E,(HL)
INC HL change to INC L
LD D,(HL)[/CODE] -
FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... 21 t-states
cp #0 ; 7 t-states
dec a ; 4 t-states
nop ; 4 t-states
nop ; 4 t-states ... /> ld a,e ; 4 t-states
cpl ; 4 t-states
ld (hl ... -
ZX-Modules app reportZX-Modules app report If You are interested, I want to report about the state and progress about my ZX-Modules programs. I would like to report at l…
... is: I cannot count the t-states in such cases - except if ... emulator. An emulator can calculate t-states easily.
Besides of ... -
Show some love for the Magnum Light GunI remember the reviews were mixed, but in hindsight I suspect the negativity was a result of the quality of some of those initial six games. I recal…
... the /CLK signal during wait states, of course).
This ... trigger is pressed, how many T-states have passed since the last ... patching for use there wouldn't be a huge amount of ... -
Is there an emulator that.....?I tried firing up Alien8 yesterday but the wildly variable frame rate is just too much hassle these days. Does there exist an emulator that can adjus…
... them, and not count the T-states.
It would require ... creating these files, which isn't much of a pain, but ... -
FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…
... )
out (RS232_CTL),a ; 11 t-states
start_bit:
;; get ...
