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Official Basinc thread - Bug reports and other discussionI just released a new BASin fork, basinc. The first official release was V16r2, and today it's r3. it's uploaded to wos archive and alternatively, h…
... little IM2 routine that swaps two palette entries every interrupt to simulate ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... crash in the testdiaghw routine, since after the interrupt test I get ... -
Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... byte was part of a routine, that will almost surely end ... /> Going USR0 will disable that interrupt and that byte will remain ... -
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…
... 't remember about that scrolling routine, but pre-shifted graphics makes ... :
- Wait for vsync interrupt.
- Wait enough t ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... php?t=46861"]joefish's routine[/URL], where multicolor attributes ... something wrong :)
Routine [B]showTilePos[/B] at address ... (or worse) if an interrupt occurs during its execution. To ... example, take a look at routine [B]changeTileNow[/B] from ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... ]
you can use a routine called showNextTile. If you are ... it 10 times after each interrupt:
...code...
This way ... -
LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…
... 'm not sure if 128k interrupt service routine messes with RAM pages ... -
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…
... to wait for an interrupt just before you start, ... the counter routine starts running, then when the interrupt kicks in, ... it actually breaks out of the counter routine ... hacking the interrupt yourself, the normal Spectrum interrupt updates a ... -
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…
... ensure that an IM 2 interrupt handler starts always at the ... far, I've made my routine to last a number of ... -
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…
...
I re-wrote this routine for my purposes and tend ... hl) ; 4t
; interrupt handler (+19t int +10t[+1 ... />
ENDMODULE[/CODE]My routine is slower than Alone Coder ... I personally prefer using my routine to Alone Coder's because ... -
Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... ? if it is, basic interrupt service routine's frame counter may help ... -
Detecting flash mode inversionsIs is possible to detect with certainty when flashing characters change from normal to inverted and vice-versa?
... ? if it is, basic interrupt service routine's frame counter may help ... -
amaurote with removed foregroundit`s good or bad ? [IMG]http://savepic.org/6483066.png[/IMG] [IMG]http://savepic.ru/6281893.png[/IMG]
... technique was that when an interrupt occurred it would dump a ... ."
it`s routine eats ~1500 tacts every frame ... /> PUSH ALL REG
; USER ROUTINE
POP ALL REG
routine
if SP=gfx ... -
Need some AY music for my new game.I'm finishing off my new game but need a tune that plays in the background. At the moment I'm using a tune ripped from the "Gems" game that comes wit…
... time. Its SND_PLAY routine is then called via an interrupt. This appears ... -
Is bank 7 usable at all?Can you assemble stuff and page bank 7 in and out? I've encountered nothing but problems so far, where does it page to? 49152?
... in assembly with your own interrupt, sound and screen routines, and ... , not calling any routine (or at least any routine that could use ... -
Problems with AY sound. Experts needed. :-)<div><span style="font-family: Arial, Verdana; font-size: 13.3333330154419px; line-height: normal;">I need to play some AY sound effects, so I've bee…
... IX / POP IX to the interrupt code and added conditionals around ... HL,INTPROC ; Set up interrupt service routine pointer LD ($5CFF),HL ; This ... -
128k toast rack diagnosisHi - I recently won a 128K toast rack, and have got a Retroleum smart card. I've tried a couple of games and all seems fine...-ish.<div><br></div><di…
... /> ; On startup, jump straight to routine at 0x0159.
START ...
; Disable interrupts, set Interrupt Mode 1, place the stack ... -
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…
... "available entry-point for additional interrupt routines" in my source code ... [/b]. This way, your sound routine will be automatically executed every ... -
Advices for double buffering ?Hi, I'm currently coding graphics routines for a forthcoming game, I use a double buffer (the dummy screen is at $e000, the code at $8000) to pro…
... . you can wait until an interrupt and then do a delay ... size. A fullscreen SP copy routine takes about 90-93K T ... -
Full-screen 32 columns bicolor engine NIRVANA+I'm glad to announce the release of [b]NIRVANA+ ENGINE[/b], providing support for bicolor graphics (multicolor 8x2) in 32 columns for all standard Sp…
... NIRVANA (or any other multicolor routine) that requires interrupts to be ... routines like NIRVANA_drawT when an interrupt occurs. If it happens and ... -
Games not compatible with the 128+ & grey +2Like the +2A & +3 thread, there are a few games that do not work correctly on the original 128+ and the grey +2. Two games that I know of that wil…
... seems to be a generic routine that points to the table ... -grey-2
; this routine adapted from jon north's ... jp back to this hacking routine
jr dor ; go back ... /> ;
; ld hl,$a340 ; create interrupt table
; ld de,$a341 ... -
[Updated] RetroVM 1.0.4 with Recreated ZX Spectrum support.A new version available the change log: - Recreated ZX Spectrum "game mode" keyboard support. - Fix a bug with multiples machines running in para…
... outcome of a key read routine that most emulators show, ... correctly during the redefine key routine. The routine uses a key scan ... conversion was part of my interrupt code and unfortunately was missing ... statement to make sure the interrupt was called. I didn' ... -
[Updated] RetroVM 1.0.4 with Recreated ZX Spectrum support.A new version available the change log: - Recreated ZX Spectrum "game mode" keyboard support. - Fix a bug with multiples machines running in para…
... outcome of a key read routine that most emulators show, ... correctly during the redefine key routine. The routine uses a key scan ... conversion was part of my interrupt code and unfortunately was missing ... statement to make sure the interrupt was called. I didn' ... -
[Updated] RetroVM 1.0.4 with Recreated ZX Spectrum support.A new version available the change log: - Recreated ZX Spectrum "game mode" keyboard support. - Fix a bug with multiples machines running in para…
... frame. So if the keyscan routine runs in the second half ... be seen during the next interrupt.
