a byte off topic rom startup codes

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==> Regarding a byte off topic rom startup codes; david <sector2@ihug.co.nz> adds:

sector2> hi my rom dos not auto-start i need to write a auto-start rom to
sector2> swich video cards a startup so far i have

d000> 0
sector2> dw 0xaa55 db size jmp near start

sector2> but i think i have missed a checksum or something Thank you

         Well, the size of your ROM is a multiple of 512 bytes. You need
         to pad out the leftovers with whatever makes the checksum 0.

Warmest Regards,

Jeff Moyer
Mission Critical Linux
http://www.missioncriticallinux.com

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