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From: phils@tekigm2.TEK.COM (Philip E Staub)
Newsgroups: comp.sys.amiga
Subject: Amiga Transformer
Message-ID: <1537@tekigm2.TEK.COM>
Date: Fri, 6-Mar-87 04:05:58 EST
Article-I.D.: tekigm2.1537
Posted: Fri Mar  6 04:05:58 1987
Date-Received: Sun, 8-Mar-87 05:38:11 EST
Organization: Tektronix Inc., Beaverton, Or.
Lines: 59
Keywords: WB 1.2

<--------------------------------------->

Since the patch program to patch the Amiga Transformer for 1.2 operation
turned out to be so short, I might as well post it. 

Some caveats:

1. Once you patch "at1" for 1.2 operation, it will no longer work under 1.1.
Of course, make sure you're not patching your original disk.

2. I haven't attempted to determine why it won't work with AddMem'ed memory.
I just make sure my startup-sequence doesn't have the AddMem I normally use
to make the CMI Kickstart Eliminator RAM accessible.

3. I haven't tried it with any kind of auto-configure memory.

4. Although this program works fine when compiled with both the Manx
compiler on my Amiga and the BSD 4.3/System V compiler on our Gould 9000, no
promises that it will work with Lattice. But there's no magic here, so it
should work on any flavor of compiler.

5. Although I have used the patched Transformer briefly, I haven't fully
wrung it out to see what bugs there might be. Since I hadn't used it under
1.1, I really don't know whether there may be other things which may need to be
patched to make it work at least as well as it did under 1.1. But for me,
for now, it boots MS-DOS and seems to work ok. Thats really all I'm
interested in (for now).

------------------------------ cut here -----------------------------------
/*	ATPatch.c - Patch the Amiga Transformer for operation under 1.2 */

#include "stdio.h"

main()
{
	FILE	*fp, *fopen();

	fp = fopen("at1","r+");
	fseek(fp,0x81L,0);
	putc(0xb8,fp);
	fseek(fp,0x10fL,0);
	putc(0x10,fp);
	fseek(fp,0x121L,0);
	putc(0x20,fp);
	fseek(fp,0x133L,0);
	putc(0x2c,fp);
	fseek(fp,0x145L,0);
	putc(0x30,fp);
	fseek(fp,0x173L,0);
	putc(0xb8,fp);
	fseek(fp,0x179L,0);
	putc(0xb8,fp);
	fclose(fp);
}
-- 
-------------------------------------------------------------------------------
Phil Staub              tektronix!tekigm!phils    (206) 253-5634
Tektronix, Inc., ISI Engineering
P.O.Box 3500, M/S C1-904, Vancouver, Washington  98668