mirror of
https://github.com/elliotnunn/NetBoot.git
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115 lines
3.6 KiB
Plaintext
115 lines
3.6 KiB
Plaintext
; boot 1 resource
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; assemble with vasmm68k_mot
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dc.b "LK"
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bra.w Code
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dc.b "D" ; executable on all machines
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dc.b $18 ; version number, unsure if important
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dc.w 0 ; some flag thing
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dc.b 6, 'System '
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dc.b 6, 'Finder '
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dc.b 7, 'MacsBug '
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dc.b 12, 'Disassembler '
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dc.b 13, 'StartUpScreen '
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dc.b 6, 'Finder '
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dc.b 9, 'Clipboard '
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NumFCBs dc.w 10 ; number of FCBs to allocate at boot
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NumEvents dc.w 20 ; number of event queue elements
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SystemHeapSize128K dc.l $4300 ; size of system heap for 128K system (never used)
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SystemHeapSize256K dc.l $8000 ; size of system heap for 256K system (never used)
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SystemHeapSize dc.l $20000 ; size of system heap (used for pre-7.0)
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; Okay, now we can ignore all of that crap and take control of the machine!
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Code
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bsr BareBonesDebugStr
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lea bootVars,a0
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lea pRamTable,a1
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pramLoop
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move.l (a1)+,d0
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beq.s pramDone
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move.l d0,d2 ; Save the len/offset arg for later
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dc.w $A052 ; _WriteXPRam
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swap d2 ; Get count from upper byte
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add.w d2,a0 ; and add it to bootVars
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bra.s pramLoop
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pramDone
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pea MyString
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dc.w $ABFF ; _DebugStr
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move.l $16A,D0 ; Ticks
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add.l #30,D0
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.loop cmp.l $16A,D0
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bhi.s .loop
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; all right, now reboot the machine
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move.l $2AE,a0 ; ROMBase
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cmp.b #0,8(A0)
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beq.s rebootPlus
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cmp.b #1,8(A0)
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beq.s rebootII
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cmp.b #2,8(A0)
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beq.s rebootSE
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cmp.b #3,8(A0)
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beq.s rebootPortable
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cmp.b #6,8(A0)
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beq.s rebootIIci
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; try our luck ... maybe it's a SuperMario?
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move.w #1,-(sp) ; sdRestart
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dc.w $A895 ; _ShutDown
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rebootPlus jmp $B82(a0)
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rebootII jmp $11AE(a0)
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rebootSE jmp $A52(a0)
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rebootPortable jmp $336E(a0)
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rebootIIci jmp $203E(a0)
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bootVars
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; bootVars
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dc.b 1 ; osType preferred os to boot from
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dc.b 1 ; protocol preferred protocol to boot from = NBP
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dc.b 0 ; errors last error in network booting
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dc.b $80 ; flags flags for: never net boot, boot first, etc.
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; bootVars ATPRAMrec
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dc.b 0 ; nbpVars address of last server that we booted off of
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dc.b 5 ; timeout seconds to wait for bootserver response
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dcb.l 4, "PWD " ; signature image signature
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dcb.b 32 ; userName an array of char, no length byte
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dcb.b 8 ; password ditto
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dc.w $0000 ; serverNum the server number
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dcb.b 8 ; padding to 68b
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pRamTable
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dc.l $00040004
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dc.l $000300AB
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dc.l $000100BC
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dc.l $00200020
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dc.l $0020008B
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dc.l $00000000
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MyString dc.b 43, 'Network boot enabled in PRAM. Restarting...'
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BareBonesDebugStr
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include 'BareBonesDebugStr.a'
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align 10 ; fill up the boot blocks
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