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United Public Domain Gold 2
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utilities
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pu060.dms
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pu060.adf
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boot.asm
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Assembly Source File
|
1990-11-02
|
902b
|
30 lines
; ColdReboot - the official way to reboot an Amiga
;
; Reboots the machine. All external memory and peripherals will be
; RESET, and the machine will start its power up diagnostics
;
; The MagicResetCode must be used exactly as specified here.
; The MagicResetCode must be longword aligned. Failure to
; duplicate the code EXACTLY will result in improper operation
; under certain system configurations.
XDEF _ColdReboot
XREF _LVOSupervisor
_ColdReboot:
move.l 4,a6 ;Get a pointer to ExecBase
lea.l MagicResetCode(pc),a5 ;Location of code to run
jsr _LVOSupervisor(a6) ;RUN code in supervisor mode
;---------- MagicResetCode ------ DO NOT CHANGE ------------------
CNOP 0,4 ;IMPORTANT! Longword align Do not change
MagicResetCode:
lea.l 2,a0 ;Point to JMP instruction at start of ROM
RESET ;all RAM goes away now
jmp (a0) ;rely on prefetch to execute this
end