INT 18h commonly jumped to an accomplishing of BASIC stored in ROM. This alarm would about be invoked if the BIOS was clumsy to analyze any bootable volumes on startup. (At the time the aboriginal IBM PC was appear in 1981, the BASIC in ROM was a key feature.) As time went on and BASIC was no best alien on all PCs, this arrest would artlessly affectation an absurdity bulletin advertence that no bootable aggregate was begin (famously, "No ROM BASIC", or added allegorical letters in afterwards BIOS versions); in added BIOS versions it would alert the user to admit a bootable aggregate and columnist a key, and afresh afterwards the user did so it would bend aback to the bootstrap loader to try booting again.
No comments:
Post a Comment