The idle package is a minimalistic Lisa 1/2 emulator.
Required ROMs: https://downloads.sourceforge.net/idle-lisa-emu/Windows%20binary/win_sdl_r23/idle_win32_bin.zip
Required patch: https://glfs-book.github.io/lfs-qol/patches/idle/idle-r26-fix-sigill.patch
Recommended patch: https://glfs-book.github.io/lfs-qol/patches/idle/idle-r26-system-roms.patch
Optional patch: https://glfs-book.github.io/lfs-qol/patches/idle/idle-r26-pretend-we-are-a-lisa-2-10.patch
libarchive (to unpack the distributions) and sdl12-compat
Apply a patch to fix various SIGILLs due to security mitigations in modern processors:
patch -Np1 -i ../idle-r26-fix-sigill.patch
Optionally, apply a patch to search for the ROMs in a system-wide location and not the current directory:
patch -Np1 -i ../idle-r26-system-roms.patch
![[Warning]](../images/warning.png)
ONLY apply the following patch if you REALLY know what you're doing. This patch pretends the Lisa II/5 as properly emulated by the idle emulator is actually a Lisa II/10, without actually introducing any new behaviour or adding any new hardware from the Lisa II/10. It is VERY likely to introduce problems in software specifically coded for the Lisa II/10, or software with proper support for it for that matter. The ONLY thing this patch is good at is making SCO Xenix properly use a 10MB ProFile drive, because SCO Xenix' ProFile driver makes an assumption about the installed hard disk size by looking at the system model, and attempting to format a 10MB drive on a Lisa II/5, or a 5MB drive on a Lisa II/10, for that matter, WILL result in errors from mkfs.
If, after you read the above, you still want to apply the patch, run the following:
patch -Np1 -i ../idle-r26-pretend-we-are-a-lisa-2-10.patchInstall idle by running the following command:
make -f Makefile.unixsdl && make -C tools/obj2asm && make -C tools/xprofile_tool
Now, as the root user:
install -v -Dm755 idle /usr/bin/idle-emu && install -v -Dm755 tools/obj2asm/mpw_obj2asm /usr/bin && install -v -Dm755 tools/xprofile_tool/xprofile_tool /usr/bin
If you have applied the systemwide ROMs patch, install those ROMs
as the root user:
install -v -m755 -d /usr/share/idle/bios && unzip ../idle_win32_bin.zip && install -v -m644 idle_win32_bin/bios/* /usr/share/idle/bios rm -rf idle_win32_bin
If you have not applied the systemwide ROMs patch, you will have
to put the bios/ folder from
idle_win32_bin.zip into every
folder you plan on executing idle from.
![[Note]](../images/note.png)
The ProFile drive image is hardcoded to be in the current
directory and is named profile.raw.