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IDNT SysCDisk
SECTION text,CODE
INCLUDE "MyExec.i"
INCLUDE "exec/macros.i"
INCLUDE "dos/dos.i"
XREF _DOSBase,@CheckFile
;CRUNCH
XREF _RawPrintfFunc
XREF ReplyPacket
IFD CRUNCH
XREF PPDecrunch
ENDC
XDEF InitDiskFunc ; Disk-System initialisieren
XDEF SetNoDiskHandlerFunc
XDEF ProcessNextRequest ; Wird von SendPacket() aufgerufen
***************************************************************************
** **
** I N I T D I S K - Disk-System init, Recalibrate, Timer alloc ... **
** **
** Parameter : nix **
** **
***************************************************************************
InitDiskFunc: movem.l d0/a0,-(SP)
clr.l InsertDiskRoutine
*** DiskRequest-Liste initialisieren
lea meb_DiskList(a6),a0
SYSJSR NewList
movem.l (SP)+,d0/a0
rts
***************************************************************************
** **
** S E T N O D I S K H A N D L E R - NoDisk-Handler setzen **
** **
** Parameter : A0.L: InsertDisk-Handler oder 0 **
** **
***************************************************************************
SetNoDiskHandlerFunc:
move.l a0,InsertDiskRoutine
rts
**************************************************************************
*** Nächsten Request aus Diskliste verarbeiten
ProcessNextRequest:
movem.l d0-d7/a0-a5,-(SP)
lea meb_DiskList(a6),a0
jsr meb_RemHead(a6) ; setzt CCR
beq .EndProcReq ; Kein Request pending --->
movea.l d0,a2 ; A2 : Aktuelles Packet
IFD DEBUG
moveq #0,d0
move.b dp_Flags(a2),d0 ; für SMSG
SMSG <"Loading '%s' (flags=$%02lx) ... ">,dp_FileName(a2),d0
ENDC
*** Packet bearbeiten
movea.l a6,a5 ; A5 : MyExecBase
movea.l dp_FileName(a2),a0
bsr @CheckFile
move.l d0,d2 ; D2 : File-Länge
bne 1$ ; OK -->
SMSG <"'%s': file not found!">,dp_FileName(a2)
bra .Error
1$:
btst.b #DPB_ALLOCMEM,dp_Flags(a2) ; CHIP-Alloc gewünscht ?
beq.s .NoChipAlloc ; nein --->
move.l d2,d0 ; File-Länge
movea.l a5,a6 ; MyExecBase
SYSJSR AllocMem
bra.s .AllocCont ; --->
.NoChipAlloc:
btst.b #DPB_ALLOCFASTMEM,dp_Flags(a2) ; FAST-Alloc gewünscht?
beq.s .NoFastAlloc ; nein --->
move.l d2,d0 ; File-Länge
movea.l a5,a6 ; MyExecBase
SYSJSR AllocFastMem
.AllocCont: move.l d0,dp_Address(a2) ; Adresse ins Packet
.NoFastAlloc:
move.l dp_FileName(a2),d1
move.l #MODE_OLDFILE,d2
movea.l _DOSBase,a6
JSRLIB Open
move.l d0,d7
bne.s 2$
.Error: movea.l a5,a6 ; MyExecBase
jmp meb_ColdReboot(a6) ; Raus hier!
2$: move.l d7,d1
move.l dp_Address(a2),d2
move.l #10000000,d3
JSRLIB Read
SMSG <"Loaded %ld bytes at $%08lx">,d0,d2
move.l d7,d1
JSRLIB Close
.DoReply
movea.l a2,a0
movea.l a5,a6 ; MyExecBase
bsr ReplyPacket ; Packet (A0) beantworten
.EndProcReq: movem.l (SP)+,d0-d7/a0-a5
rts
**************************************************************************
* D A T E N (auch im CODE-Segment wegen PC-relativ) *
**************************************************************************
InsertDiskRoutine: ds.l 1 ; User's InsertDisk handler
END
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