mirror of
https://github.com/garrettsworkshop/MacIIROMDiskDriver.git
synced 2024-11-21 12:30:49 +00:00
69 lines
1.0 KiB
ArmAsm
69 lines
1.0 KiB
ArmAsm
dc.l 0x00000000, 0x00000000, 0x00000000, 0x00000000
|
|
dc.l 0x00000000, 0x00000000, 0x00000000, 0x00000000
|
|
dc.l 0x00000000, 0x00000000, 0x00000000, 0x00000000
|
|
dc.l 0x00000000, 0x00000000, 0x00000000, 0x00000000
|
|
|
|
.EQU killCode, 1
|
|
.EQU noQueueBit, 9
|
|
|
|
.EQU kioTrap, 6
|
|
.EQU kioResult, 16
|
|
.EQU kcsCode, 26
|
|
|
|
.EQU JIODone, 0x08FC
|
|
|
|
DOpen:
|
|
movem.l %A0-%A1,-(%SP)
|
|
bsr RDiskOpen
|
|
movem.l (%SP)+,%A0-%A1
|
|
rts
|
|
|
|
DClose:
|
|
movem.l %A0-%A1,-(%SP)
|
|
bsr RDiskClose
|
|
movem.l (%SP)+,%A0-%A1
|
|
rts
|
|
|
|
DPrime:
|
|
movem.l %A0-%A1,-(%SP)
|
|
bsr RDiskPrime
|
|
movem.l (%SP)+,%A0-%A1
|
|
bra.b IOReturn
|
|
|
|
DControl:
|
|
movem.l %A0-%A1,-(%SP)
|
|
bsr RDiskControl
|
|
movem.l (%SP)+,%A0-%A1
|
|
cmpi.w #killCode, kcsCode(%A0)
|
|
bne.b IOReturn
|
|
rts
|
|
|
|
DStatus:
|
|
movem.l %A0-%A1,-(%SP)
|
|
bsr RDiskStatus
|
|
movem.l (%SP)+,%A0-%A1
|
|
|
|
IOReturn:
|
|
move.w kioTrap(%A0),%D1
|
|
btst #noQueueBit,%D1
|
|
beq.b Queued
|
|
|
|
NotQueued:
|
|
tst.w %D0
|
|
ble.b ImmedRTS
|
|
clr.w %D0
|
|
|
|
ImmedRTS:
|
|
move.w %D0,kioResult(%A0)
|
|
rts
|
|
|
|
Queued:
|
|
tst.w %D0
|
|
ble.b MyIODone
|
|
clr.w %D0
|
|
rts
|
|
|
|
MyIODone:
|
|
move.l JIODone,-(%SP)
|
|
rts
|