11 October 2021, 18:31 | #1 |
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Software Mapping 1MiB ROM - A1200
Hello,
My setup is A1200 + TF1260 (full with MMU). I've been trying to soft map a rom file of 1MiB (kickstart 3.2 + ehide.device for T1260) but MuMapROM tells me it has no memory available and if I try skick I have to disable checksum calculation in Remus otherwise it says wrong checksum (guess It doesn't support 1MiB kick at all) but then after reboot it bombs. I haven't found ReKick around so haven't tried yet. What do you commonly use ? |
11 October 2021, 18:54 | #2 |
Amigan
Join Date: Feb 2012
Location: London
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Not too familiar with the TF1260 but ideally you want to use a MMU based mapper as skick doesn't write-protect the 'ROM' from being overwritten.
I don't think skick supports custom ROMs (unless Remus generates a patch file, I can't remember?). Why isn't MuMapROM working? Is fast ram available when you run it? |
11 October 2021, 22:11 | #3 |
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Yes, im aware skick doesn't protect the memory as it doesn't use the MMU.
As far as I understand MuMapROM wants "motherboard" memory, as the guide suggests, meaning chip memory (or maybe expansion memory of some sort but I guess not accelerator's one), then it releases after reboot, idk. Not sure if it can map only 512KiB kickstarts, I was indeed expecting it to work easily. Yes, TF1260 has 128MiB of fast, I even tried booting without startup, running setpach and then trying to map rom but nada. Last edited by suppah; 12 October 2021 at 11:27. |
12 October 2021, 13:39 | #4 |
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Well, for now i can simply add "LoadModule ehide.device REVERSE" in the startup sequence and obtain the same results even though i'd prefer to test the kickstart for flashing it later.
Last edited by suppah; 12 October 2021 at 14:23. |
12 October 2021, 17:37 | #5 | ||
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Quote:
Quote:
However, if you care about an advice: In almost all cases, you can go instead by replacing ROM modules with RAM-loaded ones. LoadModule does that for you, and it requires a lot less memory, needs almost no motherboard memory, is a lot more robust, and it also allows to protect the modules after loading. It is a considerably easier solution to the same problem. |
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12 October 2021, 18:04 | #6 | ||
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Quote:
Quote:
Yes, LoadModule is great, as you can read from my previous post im using it for now to test ehide.device, but as TF1260 doesn't provide ehide.device to be able to boot from its IDE a custom rom is needed for first boot (same for TF1230, infact AmigaStore now sells modified ROMs with the device included, provided you give proof you own a registered 3.2). Last edited by suppah; 12 October 2021 at 21:21. |
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12 October 2021, 20:04 | #7 | |
Bit Copying Bard
Join Date: Jan 2017
Location: Kelty, Fife, Scotland
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Quote:
Code:
NOMEMFKICK: Use MEMF_PUBLIC memory to keep the resident modules. This also overrides the ALLTOCHIP flag. Note: This requires some magic *and* reset-persistent memory. It should be used *only* in case a) otherwise MEMF_CHIP or 16-bit memory would be used and this is not tolerateable *AND* b) you really really really know what you're doing. |
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12 October 2021, 21:19 | #8 | |
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Quote:
That's a LoadModule switch, not a MuMapROM switch. LoadModule already works perfectly. |
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12 October 2021, 21:30 | #9 |
Bit Copying Bard
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