pedrom vectors.txt

List of vectors used by PedroM (TI-CAS replacement OS by PpHd)

Auto-ints:

Int_1:	triggered at ~ 332Hz - 376Hz (HW1) or ~ 254Hz (HW2)
	scans keys, updates key buffer
Int_2:	triggered when the *first* unmasked key (see $600019) is *pressed*
	only acknowledges Int2 (write any value to $60001B)
Int_3:	Clock for int 3 ? triggered about once per second (HW1) or 1.4 seconds (HW2)
	does nothing
Int_4:	triggered by link hardware
	reads link, sends data?
Int_5:	Auto-Ints which allows the system timers. triggered at ~ 16.8Hz to 19.0 Hz (HW1) or ~ 19.2Hz (HW2) (this is programmable)
Int_6:	ON Int (2ND / DIAMOND : off, ESC : reset)
Int_7:	triggered on attempt to write below address 0x120 when write protection is enabled
	fatal error (read error)

Traps:

BUS_ERROR:
SPURIOUS:
ADDRESS_ERROR:
ILLEGAL_INSTR:
ZERO_DIVIDE:
CHK_INSTR:
I_TRAPV:
PRIVILEGE:
TRACE:
LINE_1010:	throws an error (fatal or ER_throwVar_reg)

; If $FFF0, 
;	~ jsr abs.l (Return address +6 / jsr to a1 ->Crash code+2 a1+(a1)
;	Ex:	dc.w	$FFF0 dc.l JumpAdr-*
; If $FFF2,
;	ROM_CALL avec un word.
;	Example: dc.w $FFF2, HeapAlloc*4
LINE_1111:	ROM call or jump to/call address OR throw fatal error

Trap_0:		idle
Trap_1:		change interrupt mask, return old mask (security hole)
Trap_2:		init the calc (reset)
Trap_3:		dereference a handle to the heap (locks the handle?)
Trap_4:		switch shell/program OR turn off calc
Trap_5:		not defined (fatal error)
Trap_6:		"
Trap_7:		"
Trap_8:		"
Trap_10:	"
Trap_13:	"
Trap_14:	"
Trap_15:	"
Trap_9:		get address of a function or variable (any in ROM?)
Trap_11:	not defined (display help message in status line)
Trap_12:	go to supervisor mode and return old SR (security hole)