does any one know what address i can call in the OS to do
1) Reset VBI
2) Reset DLI
or reset any other interrupts without going throug the warmstart routine ($E477)
Nie jesteś zalogowany. Proszę się zalogować lub zarejestrować.
Felix 0.6.4 Pojawiła się nowa wersja emulatora konsoli Atari Lynx - Felix.
Atari Font Maker V1.6.17.0 To rozbudowane narzędzie do tworzenia fontów, kafelków i grafik dla Atari 8-bit.
Echa Grawitacji 2025 Tematem przewodnim był "Dinozaur".
TURGEN 9.4.1 Nowa wersja popularnego narzędzia do tworzenia obrazów kaset dla komputerów Atari
65C816 XL OS v. 2.47 Nowa wersja alternatywnego systemu operacyjnego
atari.area forum » Software, Gry - 8bit » OS Calls routines
Strony 1
Zaloguj się lub zarejestruj by napisać odpowiedź
does any one know what address i can call in the OS to do
1) Reset VBI
2) Reset DLI
or reset any other interrupts without going throug the warmstart routine ($E477)
you mean deactivate?
I'm afraid you have to save old values of vectors of page 2 somewhere in memory and restore these manualy later.
yes i mean diactivate.
lda $10 ; save irqens
sta irqen.sav
lda #$00
sta $d40e ; disable NMI
sta $10 ; disable IRQ
sta $d20e
You enable inerrupts this way:
jsr $e46b ; enable NMI (VBL only)
lda irqen.sav ; enable IRQ
sta $10
sta $s20e
what is irqen.sav?, what address is it?
i did find out that to disable vbi calls i need to set the vbi call routine to the original
LDY #<$E462
LDX #>$E462
LDA #$07
JSR $E45C
what is irqen.sav?, what address is it?
This is your own label and its address may be everywhere.
To disable VBL you don't need to set its address. Only when you've changed it and want to restore the original. This one you shown is the second phase of VBI. If you want to set the first one you have to load $06 to accumulator.
Strony 1
Zaloguj się lub zarejestruj by napisać odpowiedź
atari.area forum » Software, Gry - 8bit » OS Calls routines
Wygenerowano w 0.129 sekund, wykonano 18 zapytań