Framebuffer test code doesn't run on iBook G3

[thamugadi]

The code that gets called at

azyam/src/load-bat-jump.fth

Line 158 in 323d6ad

4E800020 , \ blr

which is intended to alter the framebuffer, works well on a PowerBook G4 with OpenFirmware 4.7.1, producing a pink screen.

However, on an iBook G3 with OpenFirmware 4.2.7, it seems to always fail, displaying a white screen instead (even without the framebuffer-altering routine; storing 48000000 (b $) at

azyam/src/load-bat-jump.fth

Line 111 in 323d6ad

90830000 , \ stw r4, 0(r3)

produces the same result).

Note: sometimes, 0 1 1 failed to respond gets displayed after the white screen.

[thamugadi]

When trying to load the bootinfo.txt manually from OpenFirmware on that iBook G3, it fails at that blr yielding a 0x700 exception.