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From: jms@tardis.Tymnet.COM (Joe Smith)
Newsgroups: comp.sys.amiga,comp.sys.amiga.hardware
Subject: Re: Switch to disable FastRAM needed (or Archon fix)
Summary: Program to do it
Message-ID: <1189@tardis.Tymnet.COM>
Date: 23 Aug 90 09:17:37 GMT
References: <24127@boulder.Colorado.EDU>
Reply-To: jms@tardis.Tymnet.COM (Joe Smith)
Organization: BT Tymnet, San Jose, CA
Lines: 67

In article <24127@boulder.Colorado.EDU> judd@snoopy.Colorado.EDU writes:
>	Can somebody please tell me how to make a switch to enable/disable
>FastRAM?  The system is: A500, old Agnus, SupraRAM 512K (a501 clone).
>	The only reason I ask is that I found a copy of Archon (You know...
>a REAL computer game, like MULE, BeachHead, and Lazarian) at a software sale
>a while back, and it can't deal with the expansion memory - the bobs don't
>work (the playing pieces are invisible). The software is very much protected
>with a custom boot block and an unreadable (empty) directory.

There was a message from Thad Floryan a while back that included a program
resets the Amiga in such a way that it comes up with no fast ram configured.
Just run NoFast (from RAM:) and put the bootable game disk in DF0:.

	----------------------------------------

If anyone's interested, the NoFast program is included below; it does permit
most troublesome software to function on an expanded system.  Being only 3
lines of code, this shouldn't exceed network bandwidth requirements!  :-)

Original author of NoFast is "Anonymous"; no name appeared on any docs.

;
;	Introducing -- 'NoFast'!
;	============================================================
;	NoFast is a simple system reboot program with an added kick!
;	If your  system has any external  FAST  ram,  it will not be
;	included in the system memory list,  thus  giving you a 512K
;	machine at the WORKBENCH PROMPT!!!!
;
;	To use this utility just type in  'NOFAST'  at a CLI prompt.
;	The Amiga will begin going through its reboot procedure.  At
;	this time,  remove your disk and insert the disk you want to
;	run with only CHIP ram.
;
;	ps. I have not tried this with  $C00000  type memory yet.  I
;	hope it works.
;
;	NOTICE: I am placing this in the Public Domain.   The object
;	and source are freely redistributable.
;
;	------------------------------------------------------------
;	I assembled this  with  the Amiga Assembler (Metacomco)  and 
;	linked with BLINK using the amiga.lib library file.
;
;	============================================================
;	==== NoFast - SourceCode ===================================
;	============================================================
;
	XREF	_AbsExecBase		* ptr to ptr to ExecBase
	XREF	_LVOSuperState		* offset for SuperState()

	movea.l	_AbsExecBase,a6		* get ptr to ExecBase
	jsr	_LVOSuperState(a6)	* do SuperState();
	jmp	$F80000			* jump to Amiga ROM start

	END

begin 777 NoFast
M```#\P`````````!``````````!````$0``#Z0````0L>0````1.KO]J3OD``
'^``````#\@``M
``
end
-- 
Joe Smith (408)922-6220 | SMTP: jms@tardis.tymnet.com or jms@gemini.tymnet.com
BT Tymnet Tech Services | UUCP: ...!{ames,pyramid}!oliveb!tymix!tardis!jms
PO Box 49019, MS-C51    | BIX: smithjoe | 12 PDP-10s still running! "POPJ P,"
San Jose, CA 95161-9019 | humorous dislaimer: "My Amiga speaks for me."