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- ; This routine reads the bootblock of the disk and
- ; copies it into diskbuffer.
- ; This was "borrowed" from VirusX2.0 (The Complete Virus Removal
- ; System) © Copyright 1988 Steve Tibbett.. well I was all set to write
- ; my own and VirusX2.0 came my way, so I thought.. ah what the hell!
- ; Also "borrowed" was the routine that displays the bootblock on the screen
- ; but all this IS public domain, so.....
-
- xref _geta4
- xref _diskreq
- xref _diskbuffer
- xref _LVODoIO
- xdef _ReadBlock
-
- _ReadBlock:
- movem.l d1/a0/a1/a4/a5/a6,-(sp)
- jsr _geta4
-
- move.l _diskreq,a0
- move.w #2,$1c(a0)
- lea _diskbuffer,a1
- move.l a1,d0
- move.l d0,$28(a0)
- move.l #(3*512),$24(a0)
- move.l #0,$2c(a0)
- move.l 4,a6
-
- move.l _diskreq,a1
- jsr _LVODoIO(a6)
-
- move.l _diskreq,a0
- cmp.b #0,$1f(a0)
- beq IsOkay
-
- ReturnError:
- move.l #0,d0
- movem.l (sp)+,d1/a0/a1/a4/a5/a6
- rts
-
- IsOkay:
- move.l _diskreq,a0
- cmp.b #0,$1f(a0)
- bne ReturnError
-
- move.l #1,d0
- movem.l (sp)+,d1/a0/a1/a4/a5/a6
- rts
-