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- Anyone who has done the Amazing Computing hack that adds 512K of memory
- to the Amiga 1000 should have modified Kickstart 1.2 to "auto-configure" it.
- This could be done by following the directions provided by Dan Babcock with
- a further enhanced explanation by Brian Alltson as posted on Peoplelink. I
- have included the original Autoaddmem files in this Archive for reference. I
- thank these two gentlemen for their contribution. The following changes to
- KickStart 1.3 are merely modifications of their original code. The
- modifications simply change the addresses in the code to conform to 1.3
- addresses.
-
- One important thing to note is that Mr. Allston indicated that some
- mathematical gymnastics ar required to arrive at a new Checksum. Actually,
- the SumKick program will calculate it for you if you use the -f switch.
-
- Example: SumKick DF0: -f
- where DF0: contains the Kickstart to be modified.
-
- Using Diskzap (included) or DiskX (available elsewhere on Plink) make the
- following changes to a COPY of your KICKSTART 1.3. This also works on
- KICKWORK 1.3, a commercial product that combines the Kickstart and Workbench
- Disk.
-
- Please note that Diskzap block numbers are in hex while DiskX block numbers
- are in decimal. Both are given here.
-
- Block 142h (322) starting at location 1F6 - 00 FE 88 B2 (pointer to patch)
-
- Block 145h (325) starting at location AC
-
- 4E F9 00 FE
- 89 1E 48 E7 E0 C2 08 B9 00 07 00 BF D1 00 08 F9
- 00 03 00 BF D1 00 08 B9 00 03 00 BF D1 00 08 F9
- 00 07 00 BF D1 00 08 F9 00 03 00 BF D1 00 08 B9
- 00 03 00 BF D1 00 2C 78 00 04 20 3C 00 08 00 00
- 22 3C 00 10 00 05 74 00 20 7C 00 08 00 00 93 C9
- 4E AE FD 96 4C DF 43 07 4E F9 00 FE 84 44
-
- This patch assumes:
- a. You have added the 2 chip hardware fix in the original AC hack.
- b. You have 80000h bytes at address 80000.
-
- If you have other types of non-autoconfiguring memory and were smart enough
- to do the patch the first time you can probably adapt this patch to your
- needs. The important new addresses to remember are:
-
- FE88B2 patch starting location
- FE891E Display routine the patch jumps to
- FE8444 Place to go at end of patch (original address in block 145h 1F6)
-
- Anyone who wants to get involved with changing the graphic as described
- in Brian's text has my blessing and sympathy!
-
- Tom Drane
- OPS289
-