This is the stage 1 ARC firmware bootloader for Old World systems using the MPC106 PCI host controller.

The toolchain used to build this is Retro68, with included patch (to change the libhfs 800KB restriction to 8KB which is the actual lower bound for an HFS partition image).

Included in the apple folder is:

• boot1.bin: m68k HFS boot block with minor patches (to abort boot if Escape button is held, added because I had issues under emulation with boot-time key-combinations not working)
• boot2stub.bin: second stage bootloader stub, contains a single MixedMode routine descriptor to call into PowerPC code (the built PEF)

Run make ; make addstage2 after building arcgrackle to create a stage1.img HFS partition image used for booting Old World systems, that can be injected into a standard ISO-9660 image using OldWorldIsoBuilder.