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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 ... -
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 ... -
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…
... game will have about 15K T-states available per frame, so
your game won't need to spend time with ... will save about 1.8K T-states. For instance, reducing 4
Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... point. The 4116 DRAM datasheet states that a memory read should ... from screen RAM. The datasheet states that the 4164-2 DRAM ... /> 35 T-states, not couting the RET instruction. Yours last 53 T-states, not ... lines, circles, etc you won't be calculating a new plot ...Command and Conquer type game?Hey all One of my all time favourite games although not spectrum based, is the Command and Conquer series. I'm sure many of you are famailiar with…
... can be sure you didn't screw up on any map ... frames, spend only about 10K T-states each time, and still get ... change really, I just didn't have time to include it ...Command and Conquer type game?Hey all One of my all time favourite games although not spectrum based, is the Command and Conquer series. I'm sure many of you are famailiar with…
... short time (between 11K T-states and 12K T-states) to calculate just a ... and number of goals don't make much difference for how ...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 ...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…
... and you know how many t-states it takes per line. Everything ...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 ...Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…
... starts always at the same T-state (related to the moment ... to last a number of T-states which is a multiple of ... portion of instructions that aren't HALT last a number of ... described in Rotatrix documentation doesn't require any of this.Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…
... it has finished, so whatever T-state the CPU was at ... finish it in a certain T-state which is somehow "aligned ... mean, that the number of T-states from that moment, until the ... I have tested, this doesn't work if the computer has ...
