I tried this with WinUAE, but couldn’t get it to work, so use FS-UAE and create a new hard disk file (HDF) by clicking:ĭon’t make the HDF bigger than 1 GB and make sure you create a partitionable disk as shown here: This will give you a new patched kickstart file called kick13ide.rom that will be able to boot from a hard disk file (HDF). 1> join scsi_patched.rom kick34005.A500_patched TO kick13ide.rom.1> gpatch vice vice_40.12 (A1200) _rom.gpatch scsi_patched.rom.

Open a Shell/CLI and CD into the directory where you put the files and type the following: Now copy the following files over to your real or emulated A1200/4000 with kickstart 3.1: An Amiga 68020+ , real or emulated, with Kickstart 3.1 (rev 40.068).I will not go into the details on why it’s called SCSI patch, but this is the one to use. We want to add IDE support to the kickstart, and this patch will, don’t let the SCSI part of the name confuse you. The Amiga 500 (kickstart 1.3) had no native support for harddrives though, so we need to patch it in. This is clearly fixing a bug where the wrong instruction was used because the value at location $8000 will be random and it makes much more sense to compare against a constant than a random number.One way of booting harddrives on the Replay is by using hard disk files (HDF’s). I'm not familiar with the code patched in the second change, but it updates the opcode of this instruction: 00feaf9c B0B900008000 cmp.l $8000.l, d0 The patch changes the maximum expected size to 2MiB ($200000). This is the source of the bug where reset-proof RAM disks did not survive a reset on machines with more than 512kiB of Chip RAM. If the value is outside the expected range, a full reinitialisation occurs because it's assumed that execbase has become corrupted. This code reads the size of Chip RAM from execbase and checks that it is no greater than 512kiB ($80000) and no less than 256kiB ($40000). The first change is to patch this code: 00fc0196 266E003E movea.l $3e(a6), a3

Kickstart 1.3 rom download