Back and Forth. But mostly Forth.

Debugged the OBP boot comparing the cases where it crashes on RAM detection and on SX framebuffer detection. Now I have the path, which initializes almost everything not stepping into routines where it hangs. Currently two qemu hacks are needed: upper SIMM-FCode hack and timer stop & go hack. The rest is simple:

: t1
root-device ffd60d80 execute ffd61340 execute " banner-name" attribute device-end
" cpu-devices+" do-drop-in ( * ffd61450 * )
ffd61e70 execute ( * ffd61ea0 * )
ffd5edb0 execute ffd52a30 execute + +
ffd62930 execute 3drop 2drop ( * ffd62990 *)
ffd65610 execute drop ffd65970 execute ( * ffd659a0 * )
true (is) standalone? ffd65f20 execute ffd65f30 execute ! ffd65f40 execute ffd65f50 execute ! ( * ffd66370 * )
sunmon-compat? ffd60490 execute or 0= ffd66240 execute ( * ffd66a60 *)
ffd68920 execute ( * ffd68940 * )
ffd68dd0 execute ( * ffd68e40 *)
enable-interrupts ( * ffd6b210 * )
"/sbus" find-device scsi-initiator-id xdrint " scsi-initiator-id"
attribute device-end ( * ffd6b780 * )
ffd6e9a0 execute ffd6f160 execute "/sbus" find-device scsi-initiator-id xdrint " scsi-initiator-id" attribute device-end
ffd6f160 execute dup root-device " clock-frequency" integer-attribute device-end
2 / "/sbus" find-device " clock-frequency" integer-attribute device-end
ffd60a00 execute ( * nvram rc * )
;
showstack
t1
setenv fcode-debug? true
" probe-" do-drop-in f probe-slot " probe+" do-drop-in