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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…
... 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 ... -
What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…
... a lot less! They weren't expensive, per se, but they were ... -
What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…
... a lot less! They weren't expensive, per se, but they were ... -
Skooldaze and Back to Skool loading problemsIve got both of these on original Microsphere release and Ive never come across two titles that are so azimuth reliant before!! I mean it has to be …
... routine times bits at 855 T states for a 0, and 1710T ... -
Top 10 tape-based 128K-only games of all timeOn foro.speccy.org we came up with this list: La Abadia del Crimen Los Amores de Brunilda Carrier Command Gauntlet 3 The Muncher Pang The Pawn Rod-…
... to shave off a few T-states isn't my idea of fun ... -
Top 10 tape-based 128K-only games of all timeOn foro.speccy.org we came up with this list: La Abadia del Crimen Los Amores de Brunilda Carrier Command Gauntlet 3 The Muncher Pang The Pawn Rod-…
... to shave off a few T-states isn't my idea of fun ... it. I've tinkered with T-states for the purpose of visual ... -
Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…
... border colour the lines don't seem as visible but turns ... wandering diagonal pattern. This doesn't effect the paper however!
t-states (12 pixels) before the actual ... 48K machine and you haven't moved RAMTOP by issuing a ... -
Screen buffer Tip from Raff CeccoRaff very kindly gave me this tip: "Incidentally, I remembered a trick I used on the Z80 for extra speed: When clearing the screen buffer, it was a…
... of specifics that I don't remember about that scrolling routine ... complete sense, and I don't remember what I did with ... quite unusual as it didn't use any kind of back ... interrupt.
- Wait enough t-states so the raster has moved ... -
Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
[QUOTE=AndyC;799595]I can't see how that should affect it. Is the status of interrupts the same in both cases?[/QUOTE]
According to ZX Spin the interrupts are the same, but the t states are different if that means anything??? -
Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
[QUOTE=daveysludge;799643] but the t states are different if that means ... -
SpritesYes yes, I know this has been hashed over plenty of times before, but... I have knocked up a quick tiling routine which works with my back buffer co…
... and flip for right (don't forget the 256 byte table ... second day because it didn't work properly and went back ... in the code, tweak 8 t-states out of the main loop ... -
SpritesYes yes, I know this has been hashed over plenty of times before, but... I have knocked up a quick tiling routine which works with my back buffer co…
... and flip for right (don't forget the 256 byte table ... second day because it didn't work properly and went back ... in the code, tweak 8 t-states out of the main loop ... -
Pixel level collision detection[SIZE=3][FONT=Calibri]I need to do some pixel level collision detection. Assuming I have a byte of my ?player? sprite in DE and a byte of screen to t…
... and a enemy sprite doesn't collide this way, then there ... colission test and save some T-states most of the time :)
Pixel level collision detection[SIZE=3][FONT=Calibri]I need to do some pixel level collision detection. Assuming I have a byte of my ?player? sprite in DE and a byte of screen to t…
[QUOTE]and save some T-states most of the time[/QUOTE]< ... is "unfair", you may don't touch the enemy but still ...Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... . my programming sucks (I didn't get any sleep last night ... ).[/QUOTE]
1. Don't think so.
2. There ... be incremented a number of T-states before the other, but always ...Spectrum Emulator that supports low resolutions and runs smoothlyHello to All, I have been trying to find a spectrum emulator that will work well through my CRT TV (using RGB to Scart) Most emulators seem to supp…
... to anyone cause I can't make head or tails of ... occurs, 64 line times (14336 T states; see below for exact timings ...CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... generator[/URL], 28 bytes, 122 T-states, excellent randomness (passes most Diehard ... (unaligned)[/URL], 43 bytes, 183 T-states, perfect randomness (passes all Diehard ... (aligned)[/URL], 41 bytes, 169 T-states, perfect randomness (passes all Diehard ...CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... generator[/URL], 28 bytes, 122 T-states, excellent randomness (passes most Diehard ... (unaligned)[/URL], 43 bytes, 183 T-states, perfect randomness (passes all Diehard ... (aligned)[/URL], 41 bytes, 169 T-states, perfect randomness (passes all Diehard ...Retroleum SMART Card InterfaceHi guys, Over the last few months I've been designing an interface board for the Spectrum 48 - seems to be all the rage :) It started off as simple …
... worried though, it hasn't affected the operation of the card in ...
