mirror of
https://github.com/rdolbeau/NuBusFPGA.git
synced 2024-06-09 21:29:31 +00:00
93 lines
2.0 KiB
ArmAsm
93 lines
2.0 KiB
ArmAsm
NuBusFPGADrvr:
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.word 0x4c00 /* 0x4c00: ctl, status, needsLock [Devices.a] */
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.word 0
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.word 0
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.word 0
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/* Entry point offset table */
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.word _NuBusFPGAOpen-NuBusFPGADrvr /* open routine */
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.word NuBusFPGADrvr-NuBusFPGADrvr /* no prime */
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.word _NuBusFPGACtl-NuBusFPGADrvr /* control */
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.word _NuBusFPGAStatus-NuBusFPGADrvr /* status */
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.word _NuBusFPGAClose-NuBusFPGADrvr /* close */
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_NuBusFPGATitle:
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.byte _NuBusFPGATitle_StringEnd-.-1 /* pascal string length */
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.ascii ".NuBusFPGA_Drvr"
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_NuBusFPGATitle_StringEnd:
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.word 0 /* version number */
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/* A0 pointer to driver parameter block */
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/* A1 pointer to driver device control entry */
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ALIGN 2
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_NuBusFPGAOpen:
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MOVE.L %A1, -(%A7)
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MOVE.L %A0, -(%A7)
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JSR cNuBusFPGAOpen
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MOVE.L (%A7)+, %a0
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MOVE.L (%A7)+, %a1
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rts
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_NuBusFPGAOpenError:
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moveq #-23,%d0 /* error flag */
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rts
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_NuBusFPGACtl:
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MOVE.L %A1, -(%A7)
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MOVE.L %A0, -(%A7)
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jsr cNuBusFPGACtl
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MOVE.L (%A7)+, %a0
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MOVE.L (%A7)+, %a1
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BTST #9,%a0@(ioTrap) /* noQueueBit is 9 */
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BEQ.S _GoIODone
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rts
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_NuBusFPGAStatus:
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MOVE.L %A1, -(%A7)
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MOVE.L %A0, -(%A7)
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jsr cNuBusFPGAStatus
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MOVE.L (%A7)+, %a0
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MOVE.L (%A7)+, %a1
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BTST #9,%a0@(ioTrap) /* noQueueBit is 9 */
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BEQ.S _GoIODone
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rts
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_NuBusFPGAClose:
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MOVE.L %A1, -(%A7)
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MOVE.L %A0, -(%A7)
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jsr cNuBusFPGAClose
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MOVE.L (%A7)+, %a0
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MOVE.L (%A7)+, %a1
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rts
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_GoIODone:
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/* MOVEA.L JIODone,%A0 */
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/* JMP (%A0) */
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movel JIODone,%sp@-
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rts
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.include "NuBusFPGADrvr_OpenClose.s"
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.text
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.include "NuBusFPGADrvr_Ctrl.s"
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.text
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.include "NuBusFPGADrvr_Status.s"
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.text
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ALIGN 2
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interruptRoutine:
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moveal %a1,%a0
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addal #0x0090000c,%a0 /* FIXME */
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MOVEQ #1,%D0
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_SwapMMUMode
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clrb %a0@ /* we only need to write */
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_SwapMMUMode
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movel %a1,%d0
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roll #8,%d0
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andiw #15,%d0
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moveal #0xd28,%a0 /* JVBLTask */
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/* other codes don't need the intermediate moveal, what's the proper syntax ? */
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moveal (%a0),%a0
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jsr (%a0)
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moveq #1,%d0
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rts
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ALIGN 2
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