>Meaning don't do a far >jump and don't try to access your boot rom relative to DS! ..... AMD uses high memory aliasing, at reset time two 64K blocks are enabled: 3ff0000-3ffffff and 00f0000-0fffff which is aliased boot vector. At reset CS is set to 0f000 and upper address lines are asserted. Anyway, Bjorn you are missing a lot of amd setup code, jmp to setup will follow by bunch of int 15h etc. You'll need to setup MMS windows at least on on CS0. Goog luck!
- Slowly getting there: booting AMD SC400 from EPROM/Flash. (... Bjorn Eriksson
- Re: Slowly getting there: booting AMD SC400 from EPROM... Oliver Xymoron
- SV: Slowly getting there: booting AMD SC400 from EPROM... Bjorn Eriksson
- Re: SV: Slowly getting there: booting AMD SC400 fr... Oliver Xymoron
- Re: SV: Slowly getting there: booting AMD SC400 from ... Oleg Perelet
- Re: SV: Slowly getting there: booting AMD SC400 fr... Oliver Xymoron
- Fwd: Slowly getting there: booting AMD SC400 from EPRO... Bjorn Eriksson