I have some patched KERNAL ROMs on my page here: http://www.6502.org/users/sjgray/computer/cbm2/index.html B-series: http://www.6502.org/users/sjgray/computer/cbm2/b-kernal-sjg.binP-series: http://www.6502.org/users/sjgray/computer/cbm2/p-kernal-sjg.bin Steve On Wednesday, September 4, 2019, 08:31:39 a.m. EDT, Ullrich von Bassewitz <uz_at_musoftware.de> wrote: On Wed, Sep 04, 2019 at 02:06:52PM +0200, Michał Pleban wrote: > Ullrich von Bassewitz wrote: > > I've done the extension on one of my 600s and it works perfectly. The > > only drawback is that startup needs forever, since the RAM test does > > now need seven times as long as with 128KB. > > That's why you need a cartridge with faster RAM test routines ;-) > > https://github.com/MichalPleban/cbm2-cartridge Yes, this or a slightly changed kernal ROM. The HSG issues mention several improved kernal versions, some containing a faster RAM test. Especially the "bank x kernal" would be interesting. It can be loaded into any bank equipped with RAM, so kernal calls can be made in this bank without bank switches. If anybody has this kernal, I would be highly interested. Regards Uz -- Ullrich von Bassewitz uz_at_musoftware.de Encrypted email preferred PGP Key-Id: 29D93B10Received on 2020-05-29 22:53:11
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